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EMTime
2025-12-29 19:10:44 +08:00
parent 17d380e709
commit c040394bfd
48 changed files with 10317 additions and 0 deletions
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2gpio-lib/.vscode/compile_commands.json
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bindir = "/home/time/doc/mybin/arm-none-eabi/bin",
cross = "arm-none-eabi-",
sdkdir = "/home/time/doc/mybin/arm-none-eabi"
},
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plat = "MCU",
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sdkdir = "/home/time/doc/mybin/arm-none-eabi"
},
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plat = "linux",
arch = "x86_64"
},
gfortran_arch_x86_64_plat_linux = {
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plat = "linux",
arch = "x86_64"
},
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plat = "linux",
arch = "x86_64"
},
fpc_arch_x86_64_plat_linux = {
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arch = "x86_64"
},
cross_arch_x86_64_plat_linux = {
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arch = "x86_64"
},
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},
["tool_target_gpio-lib_MCU_ARM Cortex-M7_ld"] = {
toolchain_info = {
cachekey = "arm-none-eabi_arch_ARM Cortex-M7_plat_MCU",
name = "arm-none-eabi",
plat = "MCU",
arch = "ARM Cortex-M7"
},
toolname = "gxx",
program = "/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-g++"
},
["tool_target_gpio-lib_MCU_ARM Cortex-M7_cc"] = {
toolchain_info = {
cachekey = "arm-none-eabi_arch_ARM Cortex-M7_plat_MCU",
name = "arm-none-eabi",
plat = "MCU",
arch = "ARM Cortex-M7"
},
toolname = "gcc",
program = "/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc"
},
fasm_arch_x86_64_plat_linux = {
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plat = "linux",
arch = "x86_64"
},
cuda_arch_x86_64_plat_linux = {
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arch = "x86_64"
},
go_arch_x86_64_plat_linux = {
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arch = "x86_64"
},
clang_arch_x86_64_plat_linux = {
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arch = "x86_64"
},
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},
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},
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plat = "linux",
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},
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plat = "MCU",
arch = "ARM Cortex-M7"
},
["envs_arch_ARM Cortex-M7_plat_MCU"] = {
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plat = "MCU",
arch = "ARM Cortex-M7"
},
zig_arch_x86_64_plat_linux = {
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plat = "linux",
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},
["tool_target_lib-ebtn_MCU_ARM Cortex-M7_ar"] = {
toolchain_info = {
cachekey = "arm-none-eabi_arch_ARM Cortex-M7_plat_MCU",
name = "arm-none-eabi",
plat = "MCU",
arch = "ARM Cortex-M7"
},
toolname = "gcc_ar",
program = "/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc-ar"
},
swift_arch_x86_64_plat_linux = {
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plat = "linux",
arch = "x86_64"
},
["tool_target_lib-ebtn_MCU_ARM Cortex-M7_cc"] = {
toolchain_info = {
cachekey = "arm-none-eabi_arch_ARM Cortex-M7_plat_MCU",
name = "arm-none-eabi",
plat = "MCU",
arch = "ARM Cortex-M7"
},
toolname = "gcc",
program = "/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc"
},
rust_arch_x86_64_plat_linux = {
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__global = true,
plat = "linux",
arch = "x86_64"
}
}
2gpio-lib/.xmake/linux/x86_64/project.lock
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2gpio-lib/.xmake/linux/x86_64/xmake.conf
+53
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@@ -0,0 +1,53 @@
{
arch = "x86_64",
builddir = "build",
ccache = true,
host = "linux",
kind = "static",
mode = "release",
ndk_stdcxx = true,
plat = "linux",
target_os = "linux",
__toolchains_linux_arm32 = {
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},
__toolchains_linux_MCU = {
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},
__toolchains_linux_x86_64 = {
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},
["__toolchains_MCU_ARM Cortex-M7"] = {
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}
}
2gpio-lib/.xmake/vscode-build.log
+1
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@@ -0,0 +1 @@
[100%]: build ok, spent 0.588s
2gpio-lib/bin/gpio-lib.bin
Executable
BIN
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2gpio-lib/bin/gpio-lib.elf
Executable
BIN
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Binary file not shown.
2gpio-lib/bin/gpio-lib.hex
+443
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@@ -0,0 +1,443 @@
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2gpio-lib/bin/gpio-lib.list
Executable
+4343
View File
File diff suppressed because it is too large Load Diff
2gpio-lib/bin/gpio-lib.map
+1396
View File
File diff suppressed because it is too large Load Diff
2gpio-lib/bin/gpio-lib.size
Executable
+2
View File
@@ -0,0 +1,2 @@
text data bss dec hex filename
6972 64 524332 531368 81ba8 /home/time/doc/codefile/embe/Blog/stm32/stm32h7/2gpio-lib/bin/gpio-lib.elf
2gpio-lib/bin/gpio-lib.srec
Executable
+442
View File
@@ -0,0 +1,442 @@
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S7050800175586
2gpio-lib/bin/gpio-lib.sym
Executable
+258
View File
@@ -0,0 +1,258 @@
08000000 T vector_table
08000298 T user_gpio_setup
080002f8 T main
08000324 t system_clock_setup
08000418 T user_delay_ms
0800044c T systick_init
0800048c T sys_tick_handler
080004a8 t prv_btn_get_state
080004e0 t prv_btn_event
0800054c t ebtn_user_get_tick
08000564 T ebtn_user_init
08000590 T ebtn_user_process
080005a4 t _windows_popcount
080005f4 t bit_array_get
08000628 t bit_array_clear
08000666 t bit_array_set
080006a2 t bit_array_assign
08000702 t bit_array_num_bits_set
0800075a t bit_array_copy_all
080007a2 t bit_array_and
080007f8 t bit_array_cmp
08000822 t ebtn_timer_sub
0800083e t prv_process_btn
08000b24 T ebtn_init
08000b88 t ebtn_get_current_state
08000c20 t ebtn_process_btn
08000c58 t ebtn_process_btn_combo
08000ce8 T ebtn_process_with_curr_state
08000e04 T ebtn_process
08000e34 T ebtn_get_total_btn_cnt
08000e7c T ebtn_get_btn_index_by_key_id
08000f04 T ebtn_get_btn_by_key_id
08000f9c T ebtn_get_btn_index_by_btn
08000fb8 T ebtn_get_btn_index_by_btn_dyn
08000fd4 T ebtn_combo_btn_add_btn_by_idx
08000ff0 T ebtn_combo_btn_remove_btn_by_idx
0800100c T ebtn_combo_btn_add_btn
0800103a T ebtn_combo_btn_remove_btn
08001068 T ebtn_is_btn_active
08001094 T ebtn_is_btn_in_process
080010c0 T ebtn_is_in_process
080011a8 T ebtn_register
08001218 T ebtn_combo_register
0800127c T gpio_set
08001280 T gpio_clear
08001286 T gpio_get
0800128c T gpio_toggle
0800129e T gpio_mode_setup
080012de T gpio_set_output_options
08001314 t rcc_configure_pll
080014a0 T rcc_clock_setup_pll
080016b8 T rcc_get_bus_clk_freq
08001734 T rcc_periph_clock_enable
0800174e W adc1_2_isr
0800174e W adc3_isr
0800174e W bdma_ch0_isr
0800174e W bdma_ch1_isr
0800174e W bdma_ch2_isr
0800174e W bdma_ch3_isr
0800174e W bdma_ch4_isr
0800174e W bdma_ch5_isr
0800174e W bdma_ch6_isr
0800174e W bdma_ch7_isr
0800174e T blocking_handler
0800174e W bus_fault_handler
0800174e W cec_isr
0800174e W cm7_sev_isr
0800174e W comp_isr
0800174e W crs_isr
0800174e W cryp_isr
0800174e W dcmi_isr
0800174e W dfsdm1_it0_isr
0800174e W dfsdm1_it1_isr
0800174e W dfsdm1_it2_isr
0800174e W dfsdm1_it3_isr
0800174e W dma1_str0_isr
0800174e W dma1_str1_isr
0800174e W dma1_str2_isr
0800174e W dma1_str3_isr
0800174e W dma1_str4_isr
0800174e W dma1_str5_isr
0800174e W dma1_str6_isr
0800174e W dma1_str7_isr
0800174e W dma2d_isr
0800174e W dma2_str0_isr
0800174e W dma2_str1_isr
0800174e W dma2_str2_isr
0800174e W dma2_str3_isr
0800174e W dma2_str4_isr
0800174e W dma2_str5_isr
0800174e W dma2_str6_isr
0800174e W dma2_str7_isr
0800174e W dmamux1_ov_isr
0800174e W dmamux2_ovr_isr
0800174e W eth_isr
0800174e W eth_wkup_isr
0800174e W exti0_isr
0800174e W exti15_10_isr
0800174e W exti1_isr
0800174e W exti2_isr
0800174e W exti3_isr
0800174e W exti4_isr
0800174e W exti9_5_isr
0800174e W fdcan1_it0_isr
0800174e W fdcan1_it1_isr
0800174e W fdcan2_it0_isr
0800174e W fdcan2_it1_isr
0800174e W fdcan_cal_isr
0800174e W flash_isr
0800174e W fpu_isr
0800174e W fsmc_isr
0800174e W hard_fault_handler
0800174e W hash_rng_isr
0800174e W hrtim1_flt_isr
0800174e W hrtim1_mst_isr
0800174e W hrtim1_tima_isr
0800174e W hrtim1_timb_isr
0800174e W hrtim1_timc_isr
0800174e W hrtim1_timd_isr
0800174e W hrtim1_time_isr
0800174e W hsem0_isr
0800174e W i2c1_er_isr
0800174e W i2c1_ev_isr
0800174e W i2c2_er_isr
0800174e W i2c2_ev_isr
0800174e W i2c3_er_isr
0800174e W i2c3_ev_isr
0800174e W i2c4_er_isr
0800174e W i2c4_ev_isr
0800174e W jpeg_isr
0800174e W lp_tim1_isr
0800174e W lptim2_isr
0800174e W lptim3_isr
0800174e W lptim4_isr
0800174e W lptim5_isr
0800174e W lpuart_isr
0800174e W ltdc_er_isr
0800174e W ltdc_isr
0800174e W mdios_isr
0800174e W mdios_wkup_isr
0800174e W mdma_isr
0800174e W mem_manage_handler
0800174e W otg_fs_ep1_in_isr
0800174e W otg_fs_ep1_out_isr
0800174e W otg_fs_isr
0800174e W otg_fs_wkup_isr
0800174e W otg_hs_ep1_in_isr
0800174e W otg_hs_ep1_out_isr
0800174e W otg_hs_isr
0800174e W otg_hs_wkup_isr
0800174e W pvd_isr
0800174e W quadspi_isr
0800174e W ramecc1_isr
0800174e W rcc_isr
0800174e W reserved1_isr
0800174e W reserved2_isr
0800174e W reserved3_isr
0800174e W reserved4_isr
0800174e W reserved5_isr
0800174e W reserved6_isr
0800174e W reserved7_isr
0800174e W reserved8_isr
0800174e W rtc_alarm_isr
0800174e W rtc_wkup_isr
0800174e W sai1_isr
0800174e W sai2_isr
0800174e W sai3_isr
0800174e W sai4_isr
0800174e W sdmmc1_isr
0800174e W sdmmc2_isr
0800174e W spdifrx_isr
0800174e W spi1_isr
0800174e W spi2_isr
0800174e W spi3_isr
0800174e W spi4_isr
0800174e W spi5_isr
0800174e W spi6_isr
0800174e W swpmi1_isr
0800174e W tamp_stamp_isr
0800174e W tim15_isr
0800174e W tim16_isr
0800174e W tim17_isr
0800174e W tim1_brk_tim9_isr
0800174e W tim1_cc_isr
0800174e W tim1_trg_com_tim11_isr
0800174e W tim1_up_tim10_isr
0800174e W tim2_isr
0800174e W tim3_isr
0800174e W tim4_isr
0800174e W tim5_isr
0800174e W tim6_dac_isr
0800174e W tim7_isr
0800174e W tim8_brk_tim12_isr
0800174e W tim8_cc_isr
0800174e W tim8_trg_com_tim14_isr
0800174e W tim8_up_tim13_isr
0800174e W uart4_isr
0800174e W uart5_isr
0800174e W uart7_isr
0800174e W uart8_isr
0800174e W usage_fault_handler
0800174e W usart1_isr
0800174e W usart2_isr
0800174e W usart3_isr
0800174e W usart6_isr
0800174e W wkup_isr
0800174e W wwdg1_rst_isr
0800174e W wwdg_isr
08001750 W debug_monitor_handler
08001750 W nmi_handler
08001750 T null_handler
08001750 W pend_sv_handler
08001750 W sv_call_handler
08001754 W reset_handler
080017f4 T systick_set_reload
08001800 T systick_set_clocksource
08001814 T systick_interrupt_enable
08001822 T systick_counter_enable
08001830 T systick_clear
0800183a T scb_set_priority_grouping
0800184c T nvic_set_priority
0800186c W cm3_assert_failed
08001870 T flash_prefetch_enable
08001880 T flash_prefetch_disable
08001890 T flash_set_ws
080018a4 T pwr_set_mode_ldo
080018bc T pwr_set_mode_scu_ldo
080018d4 T pwr_set_mode_smps_ldo
08001908 T pwr_set_mode_bypass
08001920 T pwr_set_mode_scu_bypass
08001938 T pwr_set_mode
08001990 T pwr_set_vos_scale
08001a2c T memcmp
08001a88 T memset
08001b24 t default_param
08001b32 t d3cr_vos_values.0
08001b36 t srdcr_vos_values.1
08001b3c A _data_loadaddr
08001b3c D _etext
08001b3c D __exidx_end
08001b3c D __exidx_start
08001b3c D __fini_array_end
08001b3c D __fini_array_start
08001b3c D __init_array_end
08001b3c D __init_array_start
08001b3c D __preinit_array_end
08001b3c D __preinit_array_start
20000000 d btns
20000000 D _data
2000001c d rcc_clock_tree
20000040 D _edata
20000040 B systick
20000044 b ebtn_default
2000006c B _ebss
20020000 B _stack
24000000 B _sheap
24080000 B _eheap
24080000 B end
2gpio-lib/cmsis-dap.cfg
+15
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@@ -0,0 +1,15 @@
# SPDX-License-Identifier: GPL-2.0-or-later
#
# ARM CMSIS-DAP compliant adapter
#
# http://www.keil.com/support/man/docs/dapdebug/
#
adapter driver cmsis-dap
transport select swd
reset_config none
# Optionally specify the serial number of CMSIS-DAP usb device.
# adapter serial 02200201E6661E601B98E3B9
2gpio-lib/compile_commands.json
+26
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@@ -0,0 +1,26 @@
[
{
"directory": "/home/time/doc/codefile/embe/Blog/stm32/stm32h7/2gpio-lib",
"arguments": ["/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc", "-c", "-g", "-O0", "-I../../libopencm3/include", "-Iuser/inc", "-Ilib/ebtn", "-DSTM32H7", "-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", "-o", "build/.objs/gpio-lib/linux/arm32/release/user/src/gpio.c.o", "user/src/gpio.c"],
"file": "user/src/gpio.c"
},
{
"directory": "/home/time/doc/codefile/embe/Blog/stm32/stm32h7/2gpio-lib",
"arguments": ["/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc", "-c", "-g", "-O0", "-I../../libopencm3/include", "-Iuser/inc", "-Ilib/ebtn", "-DSTM32H7", "-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", "-o", "build/.objs/gpio-lib/linux/arm32/release/user/src/main.c.o", "user/src/main.c"],
"file": "user/src/main.c"
},
{
"directory": "/home/time/doc/codefile/embe/Blog/stm32/stm32h7/2gpio-lib",
"arguments": ["/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc", "-c", "-g", "-O0", "-I../../libopencm3/include", "-Iuser/inc", "-Ilib/ebtn", "-DSTM32H7", "-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", "-o", "build/.objs/gpio-lib/linux/arm32/release/user/src/systick.c.o", "user/src/systick.c"],
"file": "user/src/systick.c"
},
{
"directory": "/home/time/doc/codefile/embe/Blog/stm32/stm32h7/2gpio-lib",
"arguments": ["/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc", "-c", "-g", "-O0", "-I../../libopencm3/include", "-Iuser/inc", "-Ilib/ebtn", "-DSTM32H7", "-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", "-o", "build/.objs/lib-ebtn/linux/arm32/release/lib/ebtn/ebtn_cb.c.o", "lib/ebtn/ebtn_cb.c"],
"file": "lib/ebtn/ebtn_cb.c"
},
{
"directory": "/home/time/doc/codefile/embe/Blog/stm32/stm32h7/2gpio-lib",
"arguments": ["/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc", "-c", "-g", "-O0", "-I../../libopencm3/include", "-Iuser/inc", "-Ilib/ebtn", "-DSTM32H7", "-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", "-o", "build/.objs/lib-ebtn/linux/arm32/release/lib/ebtn/ebtn.c.o", "lib/ebtn/ebtn.c"],
"file": "lib/ebtn/ebtn.c"
}]
2gpio-lib/cortex-m-generic.ld
+117
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@@ -0,0 +1,117 @@
MEMORY
{
rom (rx) : ORIGIN = 0x08000000, LENGTH = 0x200000 /* Flash 2MB */
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 0x20000 /* 128 KB */
ram2 (rwx) : ORIGIN = 0x24000000, LENGTH = 0x80000 /* 512 KB */
}
/* Enforce emmition of the vector table. */
EXTERN (vector_table)
/* Define the entry point of the output file. */
ENTRY(reset_handler)
/* Define sections. */
SECTIONS
{
.text : {
*(.vectors) /* Vector table */
*(.text*) /* Program code */
. = ALIGN(4);
*(.rodata*) /* Read-only data */
. = ALIGN(4);
} >rom
/* C++ Static constructors/destructors, also used for __attribute__
* ((constructor)) and the likes */
.preinit_array : {
. = ALIGN(4);
__preinit_array_start = .;
KEEP (*(.preinit_array))
__preinit_array_end = .;
} >rom
.init_array : {
. = ALIGN(4);
__init_array_start = .;
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
__init_array_end = .;
} >rom
.fini_array : {
. = ALIGN(4);
__fini_array_start = .;
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
__fini_array_end = .;
} >rom
/*
* Another section used by C++ stuff, appears when using newlib with
* 64bit (long long) printf support
*/
.ARM.extab : {
*(.ARM.extab*)
} >rom
.ARM.exidx : {
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >rom
. = ALIGN(4);
_etext = .;
/* ram, but not cleared on reset, eg boot/app comms */
.noinit (NOLOAD) : {
*(.noinit*)
} >ram
. = ALIGN(4);
.data : {
_data = .;
*(.data*) /* Read-write initialized data */
*(.ramtext*) /* "text" functions to run in ram */
. = ALIGN(4);
_edata = .;
} >ram AT >rom
_data_loadaddr = LOADADDR(.data);
.bss : {
*(.bss*) /* Read-write zero initialized data */
*(COMMON)
. = ALIGN(4);
_ebss = .;
} >ram
/*
* The .eh_frame section appears to be used for C++ exception handling.
* You may need to fix this if you're using C++.
*/
/DISCARD/ : { *(.eh_frame) }
/* Heap 分配到第二块 RAM */
.heap : {
_sheap = .;
. = ORIGIN(ram2) + LENGTH(ram2);
_eheap = .;
} >ram2
/* 第二块 RAM,用于大数组或 heap */
/*
.ext_ram (NOLOAD) : {
_sext_ram = .;
*(.ext_ram*)
*(.bss_ext_ram*)
. = ALIGN(4);
_eext_ram = .;
} > ram2
*/
. = ALIGN(4);
end = .;
}
PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));
PROVIDE(_sheap = ORIGIN(ram2));
PROVIDE(_eheap = ORIGIN(ram2) + LENGTH(ram2));
2gpio-lib/lib/ebtn/bit_array.h
+597
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@@ -0,0 +1,597 @@
#ifndef _BIT_ARRAY_H_
#define _BIT_ARRAY_H_
#include <stdint.h>
#include <string.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
// #define BIT_ARRAY_CONFIG_64
// here can change to uint64_t, if you system is 64bit.
#ifdef BIT_ARRAY_CONFIG_64
typedef uint64_t bit_array_t;
#define BIT_ARRAY_BIT(n) (1ULL << (n))
#else
typedef uint32_t bit_array_t;
#define BIT_ARRAY_BIT(n) (1UL << (n))
#endif
typedef bit_array_t bit_array_val_t;
#define BIT_ARRAY_BITS (sizeof(bit_array_val_t) * 8)
#define BIT_ARRAY_BIT_WORD(bit) ((bit) / BIT_ARRAY_BITS)
#define BIT_ARRAY_BIT_INDEX(bit) ((bit_array_val_t)(bit) & (BIT_ARRAY_BITS - 1U))
#define BIT_ARRAY_MASK(bit) BIT_ARRAY_BIT(BIT_ARRAY_BIT_INDEX(bit))
#define BIT_ARRAY_ELEM(addr, bit) ((addr)[BIT_ARRAY_BIT_WORD(bit)])
// word of all 1s
#define BIT_ARRAY_WORD_MAX (~(bit_array_val_t)0)
#define BIT_ARRAY_SUB_MASK(nbits) ((nbits) ? BIT_ARRAY_WORD_MAX >> (BIT_ARRAY_BITS - (nbits)) : (bit_array_val_t)0)
// A possibly faster way to combine two words with a mask
// #define bitmask_merge(a,b,abits) ((a & abits) | (b & ~abits))
#define bitmask_merge(a, b, abits) (b ^ ((a ^ b) & abits))
/**
* @brief This macro computes the number of bit array variables necessary to
* represent a bitmap with @a num_bits.
*
* @param num_bits Number of bits.
*/
#define BIT_ARRAY_BITMAP_SIZE(num_bits) (1 + ((num_bits)-1) / BIT_ARRAY_BITS)
/**
* @brief Define an array of bit array variables.
*
* This macro defines an array of bit array variables containing at least
* @a num_bits bits.
*
* @note
* If used from file scope, the bits of the array are initialized to zero;
* if used from within a function, the bits are left uninitialized.
*
* @cond INTERNAL_HIDDEN
* @note
* This macro should be replicated in the PREDEFINED field of the documentation
* Doxyfile.
* @endcond
*
* @param name Name of array of bit array variables.
* @param num_bits Number of bits needed.
*/
#define BIT_ARRAY_DEFINE(name, num_bits) bit_array_t name[BIT_ARRAY_BITMAP_SIZE(num_bits)]
#if 1
// See http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetParallel
static inline bit_array_val_t _windows_popcount(bit_array_val_t w)
{
w = w - ((w >> 1) & (bit_array_val_t) ~(bit_array_val_t)0 / 3);
w = (w & (bit_array_val_t) ~(bit_array_val_t)0 / 15 * 3) + ((w >> 2) & (bit_array_val_t) ~(bit_array_val_t)0 / 15 * 3);
w = (w + (w >> 4)) & (bit_array_val_t) ~(bit_array_val_t)0 / 255 * 15;
return (bit_array_val_t)(w * ((bit_array_val_t) ~(bit_array_val_t)0 / 255)) >> (sizeof(bit_array_val_t) - 1) * 8;
}
#define POPCOUNT(x) _windows_popcount(x)
#else
#define POPCOUNT(x) (unsigned)__builtin_popcountll(x)
#endif
#define bits_in_top_word(nbits) ((nbits) ? BIT_ARRAY_BIT_INDEX((nbits)-1) + 1 : 0)
static inline void _bit_array_mask_top_word(bit_array_t *target, int num_bits)
{
// Mask top word
int num_of_words = BIT_ARRAY_BITMAP_SIZE(num_bits);
int bits_active = bits_in_top_word(num_bits);
target[num_of_words - 1] &= BIT_ARRAY_SUB_MASK(bits_active);
}
/**
* @brief Bit Array test a bit.
*
* This routine tests whether bit number @a bit of @a target is set or not.
*
* @param target Address of bit array variable or array.
* @param bit Bit number (starting from 0).
*
* @return true if the bit was set, false if it wasn't.
*/
static inline int bit_array_get(const bit_array_t *target, int bit)
{
bit_array_val_t val = BIT_ARRAY_ELEM(target, bit);
return (1 & (val >> (bit & (BIT_ARRAY_BITS - 1)))) != 0;
}
/**
* @brief Bit Array clear a bit.
*
* Bit Array clear bit number @a bit of @a target.
*
* @param target Address of bit array variable or array.
* @param bit Bit number (starting from 0).
*/
static inline void bit_array_clear(bit_array_t *target, int bit)
{
bit_array_val_t mask = BIT_ARRAY_MASK(bit);
BIT_ARRAY_ELEM(target, bit) &= ~mask;
}
/**
* @brief Bit Array set a bit.
*
* Bit Array set bit number @a bit of @a target.
*
* @param target Address of bit array variable or array.
* @param bit Bit number (starting from 0).
*/
static inline void bit_array_set(bit_array_t *target, int bit)
{
bit_array_val_t mask = BIT_ARRAY_MASK(bit);
BIT_ARRAY_ELEM(target, bit) |= mask;
}
/**
* @brief Bit Array toggle a bit.
*
* Bit Array toggle bit number @a bit of @a target.
*
* @param target Address of bit array variable or array.
* @param bit Bit number (starting from 0).
*/
static inline void bit_array_toggle(bit_array_t *target, int bit)
{
bit_array_val_t mask = BIT_ARRAY_MASK(bit);
BIT_ARRAY_ELEM(target, bit) ^= mask;
}
/**
* @brief Bit Array set a bit to a given value.
*
* Bit Array set bit number @a bit of @a target to value @a val.
*
* @param target Address of bit array variable or array.
* @param bit Bit number (starting from 0).
* @param val true for 1, false for 0.
*/
static inline void bit_array_assign(bit_array_t *target, int bit, int val)
{
bit_array_val_t mask = BIT_ARRAY_MASK(bit);
if (val)
{
BIT_ARRAY_ELEM(target, bit) |= mask;
}
else
{
BIT_ARRAY_ELEM(target, bit) &= ~mask;
}
}
static inline void bit_array_clear_all(bit_array_t *target, int num_bits)
{
memset((void *)target, 0, BIT_ARRAY_BITMAP_SIZE(num_bits) * sizeof(bit_array_val_t));
}
static inline void bit_array_set_all(bit_array_t *target, int num_bits)
{
memset((void *)target, 0xff, BIT_ARRAY_BITMAP_SIZE(num_bits) * sizeof(bit_array_val_t));
_bit_array_mask_top_word(target, num_bits);
}
static inline void bit_array_toggle_all(bit_array_t *target, int num_bits)
{
for (int i = 0; i < BIT_ARRAY_BITMAP_SIZE(num_bits); i++)
{
target[i] ^= BIT_ARRAY_WORD_MAX;
}
_bit_array_mask_top_word(target, num_bits);
}
//
// Strings and printing
//
// Construct a BIT_ARRAY from a substring with given on and off characters.
// From string method
static inline void bit_array_from_str(bit_array_t *bitarr, const char *str)
{
int i, index;
int space = 0;
int len = strlen(str);
for (i = 0; i < len; i++)
{
index = i - space;
if (strchr("1", str[i]) != NULL)
{
bit_array_set(bitarr, index);
}
else if (strchr("0", str[i]) != NULL)
{
bit_array_clear(bitarr, index);
}
else
{
// error.
space++;
}
}
}
// Takes a char array to write to. `str` must be bitarr->num_of_bits+1 in length
// Terminates string with '\0'
static inline char *bit_array_to_str(const bit_array_t *bitarr, int num_bits, char *str)
{
int i;
for (i = 0; i < num_bits; i++)
{
str[i] = bit_array_get(bitarr, i) ? '1' : '0';
}
str[num_bits] = '\0';
return str;
}
// Takes a char array to write to. `str` must be bitarr->num_of_bits+1 in length
// Terminates string with '\0'
static inline char *bit_array_to_str_8(const bit_array_t *bitarr, int num_bits, char *str)
{
int i;
int space = 0;
for (i = 0; i < num_bits; i++)
{
str[i + space] = bit_array_get(bitarr, i) ? '1' : '0';
if ((i + 1) % 8 == 0)
{
space++;
str[i + space] = ' ';
}
}
str[num_bits + space] = '\0';
return str;
}
//
// Get and set words (internal use only -- no bounds checking)
//
static inline bit_array_val_t _bit_array_get_word(const bit_array_t *target, int num_bits, int start)
{
int word_index = BIT_ARRAY_BIT_WORD(start);
int word_offset = BIT_ARRAY_BIT_INDEX(start);
bit_array_val_t result = target[word_index] >> word_offset;
int bits_taken = BIT_ARRAY_BITS - word_offset;
// word_offset is now the number of bits we need from the next word
// Check the next word has at least some bits
if (word_offset > 0 && start + bits_taken < num_bits)
{
result |= target[word_index + 1] << (BIT_ARRAY_BITS - word_offset);
}
return result;
}
// Set 64 bits from a particular start position
// Doesn't extend bit array
static inline void _bit_array_set_word(bit_array_t *target, int num_bits, int start, bit_array_val_t word)
{
int word_index = BIT_ARRAY_BIT_WORD(start);
int word_offset = BIT_ARRAY_BIT_INDEX(start);
if (word_offset == 0)
{
target[word_index] = word;
}
else
{
target[word_index] = (word << word_offset) | (target[word_index] & BIT_ARRAY_SUB_MASK(word_offset));
if (word_index + 1 < BIT_ARRAY_BITMAP_SIZE(num_bits))
{
target[word_index + 1] = (word >> (BIT_ARRAY_BITS - word_offset)) | (target[word_index + 1] & (BIT_ARRAY_WORD_MAX << word_offset));
}
}
// Mask top word
_bit_array_mask_top_word(target, num_bits);
}
//
// Fill a region (internal use only)
//
// FillAction is fill with 0 or 1 or toggle
typedef enum
{
ZERO_REGION,
FILL_REGION,
SWAP_REGION
} FillAction;
static inline void _bit_array_set_region(bit_array_t *target, int start, int length, FillAction action)
{
if (length == 0)
return;
int first_word = BIT_ARRAY_BIT_WORD(start);
int last_word = BIT_ARRAY_BIT_WORD(start + length - 1);
int foffset = BIT_ARRAY_BIT_INDEX(start);
int loffset = BIT_ARRAY_BIT_INDEX(start + length - 1);
if (first_word == last_word)
{
bit_array_val_t mask = BIT_ARRAY_SUB_MASK(length) << foffset;
switch (action)
{
case ZERO_REGION:
target[first_word] &= ~mask;
break;
case FILL_REGION:
target[first_word] |= mask;
break;
case SWAP_REGION:
target[first_word] ^= mask;
break;
}
}
else
{
// Set first word
switch (action)
{
case ZERO_REGION:
target[first_word] &= BIT_ARRAY_SUB_MASK(foffset);
break;
case FILL_REGION:
target[first_word] |= ~BIT_ARRAY_SUB_MASK(foffset);
break;
case SWAP_REGION:
target[first_word] ^= ~BIT_ARRAY_SUB_MASK(foffset);
break;
}
int i;
// Set whole words
switch (action)
{
case ZERO_REGION:
for (i = first_word + 1; i < last_word; i++)
target[i] = (bit_array_val_t)0;
break;
case FILL_REGION:
for (i = first_word + 1; i < last_word; i++)
target[i] = BIT_ARRAY_WORD_MAX;
break;
case SWAP_REGION:
for (i = first_word + 1; i < last_word; i++)
target[i] ^= BIT_ARRAY_WORD_MAX;
break;
}
// Set last word
switch (action)
{
case ZERO_REGION:
target[last_word] &= ~BIT_ARRAY_SUB_MASK(loffset + 1);
break;
case FILL_REGION:
target[last_word] |= BIT_ARRAY_SUB_MASK(loffset + 1);
break;
case SWAP_REGION:
target[last_word] ^= BIT_ARRAY_SUB_MASK(loffset + 1);
break;
}
}
}
// Get the number of bits set (hamming weight)
static inline int bit_array_num_bits_set(bit_array_t *target, int num_bits)
{
int i;
int num_of_bits_set = 0;
for (i = 0; i < BIT_ARRAY_BITMAP_SIZE(num_bits); i++)
{
if (target[i] > 0)
{
num_of_bits_set += POPCOUNT(target[i]);
}
}
return num_of_bits_set;
}
// Get the number of bits not set (1 - hamming weight)
static inline int bit_array_num_bits_cleared(bit_array_t *target, int num_bits)
{
return num_bits - bit_array_num_bits_set(target, num_bits);
}
// Copy bits from one array to another
// Note: use MACRO bit_array_copy
// Destination and source can be the same bit_array and
// src/dst regions can overlap
static inline void bit_array_copy(bit_array_t *dst, int dstindx, const bit_array_t *src, int srcindx, int length, int src_num_bits, int dst_num_bits)
{
// Num of full words to copy
int num_of_full_words = length / BIT_ARRAY_BITS;
int i;
int bits_in_last_word = bits_in_top_word(length);
if (dst == src && srcindx > dstindx)
{
// Work left to right
for (i = 0; i < num_of_full_words; i++)
{
bit_array_val_t word = _bit_array_get_word(src, src_num_bits, srcindx + i * BIT_ARRAY_BITS);
_bit_array_set_word(dst, dst_num_bits, dstindx + i * BIT_ARRAY_BITS, word);
}
if (bits_in_last_word > 0)
{
bit_array_val_t src_word = _bit_array_get_word(src, src_num_bits, srcindx + i * BIT_ARRAY_BITS);
bit_array_val_t dst_word = _bit_array_get_word(dst, dst_num_bits, dstindx + i * BIT_ARRAY_BITS);
bit_array_val_t mask = BIT_ARRAY_SUB_MASK(bits_in_last_word);
bit_array_val_t word = bitmask_merge(src_word, dst_word, mask);
_bit_array_set_word(dst, dst_num_bits, dstindx + num_of_full_words * BIT_ARRAY_BITS, word);
}
}
else
{
// Work right to left
for (i = 0; i < num_of_full_words; i++)
{
bit_array_val_t word = _bit_array_get_word(src, src_num_bits, srcindx + length - (i + 1) * BIT_ARRAY_BITS);
_bit_array_set_word(dst, dst_num_bits, dstindx + length - (i + 1) * BIT_ARRAY_BITS, word);
}
if (bits_in_last_word > 0)
{
bit_array_val_t src_word = _bit_array_get_word(src, src_num_bits, srcindx);
bit_array_val_t dst_word = _bit_array_get_word(dst, dst_num_bits, dstindx);
bit_array_val_t mask = BIT_ARRAY_SUB_MASK(bits_in_last_word);
bit_array_val_t word = bitmask_merge(src_word, dst_word, mask);
_bit_array_set_word(dst, dst_num_bits, dstindx, word);
}
}
_bit_array_mask_top_word(dst, dst_num_bits);
}
// copy all of src to dst. dst is resized to match src.
static inline void bit_array_copy_all(bit_array_t *dst, const bit_array_t *src, int num_bits)
{
for (int i = 0; i < BIT_ARRAY_BITMAP_SIZE(num_bits); i++)
{
dst[i] = src[i];
}
}
//
// Logic operators
//
// Destination can be the same as one or both of the sources
static inline void bit_array_and(bit_array_t *dest, const bit_array_t *src1, const bit_array_t *src2, int num_bits)
{
for (int i = 0; i < BIT_ARRAY_BITMAP_SIZE(num_bits); i++)
{
dest[i] = src1[i] & src2[i];
}
}
static inline void bit_array_or(bit_array_t *dest, const bit_array_t *src1, const bit_array_t *src2, int num_bits)
{
for (int i = 0; i < BIT_ARRAY_BITMAP_SIZE(num_bits); i++)
{
dest[i] = src1[i] | src2[i];
}
}
static inline void bit_array_xor(bit_array_t *dest, const bit_array_t *src1, const bit_array_t *src2, int num_bits)
{
for (int i = 0; i < BIT_ARRAY_BITMAP_SIZE(num_bits); i++)
{
dest[i] = src1[i] ^ src2[i];
}
}
static inline void bit_array_not(bit_array_t *dest, const bit_array_t *src, int num_bits)
{
for (int i = 0; i < BIT_ARRAY_BITMAP_SIZE(num_bits); i++)
{
dest[i] = ~src[i];
}
}
//
// Shift array left/right. If fill is zero, filled with 0, otherwise 1
//
// Shift towards LSB / lower index
static inline void bit_array_shift_right(bit_array_t *target, int num_bits, int shift_dist, int fill)
{
if (shift_dist >= num_bits)
{
fill ? bit_array_set_all(target, num_bits) : bit_array_clear_all(target, num_bits);
return;
}
else if (shift_dist == 0)
{
return;
}
FillAction action = fill ? FILL_REGION : ZERO_REGION;
int cpy_length = num_bits - shift_dist;
bit_array_copy(target, 0, target, shift_dist, cpy_length, num_bits, num_bits);
_bit_array_set_region(target, cpy_length, shift_dist, action);
}
// Shift towards MSB / higher index
static inline void bit_array_shift_left(bit_array_t *target, int num_bits, int shift_dist, int fill)
{
if (shift_dist >= num_bits)
{
fill ? bit_array_set_all(target, num_bits) : bit_array_clear_all(target, num_bits);
return;
}
else if (shift_dist == 0)
{
return;
}
FillAction action = fill ? FILL_REGION : ZERO_REGION;
int cpy_length = num_bits - shift_dist;
bit_array_copy(target, shift_dist, target, 0, cpy_length, num_bits, num_bits);
_bit_array_set_region(target, 0, shift_dist, action);
}
//
// Comparisons
//
// Compare two bit arrays by value stored, with index 0 being the Least
// Significant Bit (LSB). Arrays must have the same length.
// returns:
// >0 iff bitarr1 > bitarr2
// 0 iff bitarr1 == bitarr2
// <0 iff bitarr1 < bitarr2
static inline int bit_array_cmp(const bit_array_t *bitarr1, const bit_array_t *bitarr2, int num_bits)
{
return memcmp(bitarr1, bitarr2, BIT_ARRAY_BITMAP_SIZE(num_bits) * sizeof(bit_array_val_t));
}
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _BIT_ARRAY_H_ */
2gpio-lib/lib/ebtn/ebtn.c
+574
View File
@@ -0,0 +1,574 @@
#include <string.h>
#include "ebtn.h"
#define EBTN_FLAG_ONPRESS_SENT ((uint8_t)0x01) /*!< Flag indicates that on-press event has been sent */
#define EBTN_FLAG_IN_PROCESS ((uint8_t)0x02) /*!< Flag indicates that button in process */
/* Default button group instance */
static ebtn_t ebtn_default;
/**
* \brief Process the button information and state
*
* \param[in] btn: Button instance to process
* \param[in] old_state: old state
* \param[in] new_state: new state
* \param[in] mstime: Current milliseconds system time
*/
static void prv_process_btn(ebtn_btn_t *btn, uint8_t old_state, uint8_t new_state, ebtn_time_t mstime)
{
ebtn_t *ebtobj = &ebtn_default;
/* Check params set or not. */
if (btn->param == NULL)
{
return;
}
/* Button state has just changed */
if (new_state != old_state)
{
btn->time_state_change = mstime;
if (new_state)
{
btn->flags |= EBTN_FLAG_IN_PROCESS;
}
}
/* Button is still pressed */
if (new_state)
{
/*
* Handle debounce and send on-press event
*
* This is when we detect valid press
*/
if (!(btn->flags & EBTN_FLAG_ONPRESS_SENT))
{
/*
* Run if statement when:
*
* - Runtime mode is enabled -> user sets its own config for debounce
* - Config debounce time for press is more than `0`
*/
if (ebtn_timer_sub(mstime, btn->time_state_change) >= btn->param->time_debounce)
{
/*
* Check mutlti click limit reach or not.
*/
if ((btn->click_cnt > 0) && (ebtn_timer_sub(mstime, btn->click_last_time) >= btn->param->time_click_multi_max))
{
if (btn->event_mask & EBTN_EVT_MASK_ONCLICK)
{
ebtobj->evt_fn(btn, EBTN_EVT_ONCLICK);
}
btn->click_cnt = 0;
}
/* Set keep alive time */
btn->keepalive_last_time = mstime;
btn->keepalive_cnt = 0;
/* Start with new on-press */
btn->flags |= EBTN_FLAG_ONPRESS_SENT;
if (btn->event_mask & EBTN_EVT_MASK_ONPRESS)
{
ebtobj->evt_fn(btn, EBTN_EVT_ONPRESS);
}
btn->time_change = mstime; /* Button state has now changed */
}
}
/*
* Handle keep alive, but only if on-press event has been sent
*
* Keep alive is sent when valid press is being detected
*/
else
{
while ((btn->param->time_keepalive_period > 0) && (ebtn_timer_sub(mstime, btn->keepalive_last_time) >= btn->param->time_keepalive_period))
{
btn->keepalive_last_time += btn->param->time_keepalive_period;
++btn->keepalive_cnt;
if (btn->event_mask & EBTN_EVT_MASK_KEEPALIVE)
{
ebtobj->evt_fn(btn, EBTN_EVT_KEEPALIVE);
}
}
// Scene1: multi click end with a long press, need send onclick event.
if ((btn->click_cnt > 0) && (ebtn_timer_sub(mstime, btn->time_change) > btn->param->time_click_pressed_max))
{
if (btn->event_mask & EBTN_EVT_MASK_ONCLICK)
{
ebtobj->evt_fn(btn, EBTN_EVT_ONCLICK);
}
btn->click_cnt = 0;
}
}
}
/* Button is still released */
else
{
/*
* We only need to react if on-press event has even been started.
*
* Do nothing if that was not the case
*/
if (btn->flags & EBTN_FLAG_ONPRESS_SENT)
{
/*
* Run if statement when:
*
* - Runtime mode is enabled -> user sets its own config for debounce
* - Config debounce time for release is more than `0`
*/
if (ebtn_timer_sub(mstime, btn->time_state_change) >= btn->param->time_debounce_release)
{
/* Handle on-release event */
btn->flags &= ~EBTN_FLAG_ONPRESS_SENT;
if (btn->event_mask & EBTN_EVT_MASK_ONRELEASE)
{
ebtobj->evt_fn(btn, EBTN_EVT_ONRELEASE);
}
/* Check time validity for click event */
if (ebtn_timer_sub(mstime, btn->time_change) >= btn->param->time_click_pressed_min &&
ebtn_timer_sub(mstime, btn->time_change) <= btn->param->time_click_pressed_max)
{
++btn->click_cnt;
btn->click_last_time = mstime;
}
else
{
// Scene2: If last press was too short, and previous sequence of clicks was
// positive, send event to user.
if ((btn->click_cnt > 0) && (ebtn_timer_sub(mstime, btn->time_change) < btn->param->time_click_pressed_min))
{
if (btn->event_mask & EBTN_EVT_MASK_ONCLICK)
{
ebtobj->evt_fn(btn, EBTN_EVT_ONCLICK);
}
}
/*
* There was an on-release event, but timing
* for click event detection is outside allowed window.
*
* Reset clicks counter -> not valid sequence for click event.
*/
btn->click_cnt = 0;
}
// Scene3: this part will send on-click event immediately after release event, if
// maximum number of consecutive clicks has been reached.
if ((btn->click_cnt > 0) && (btn->click_cnt == btn->param->max_consecutive))
{
if (btn->event_mask & EBTN_EVT_MASK_ONCLICK)
{
ebtobj->evt_fn(btn, EBTN_EVT_ONCLICK);
}
btn->click_cnt = 0;
}
btn->time_change = mstime; /* Button state has now changed */
}
}
else
{
/*
* Based on te configuration, this part of the code
* will send on-click event after certain timeout.
*
* This feature is useful if users prefers multi-click feature
* that is reported only after last click event happened,
* including number of clicks made by user
*/
if (btn->click_cnt > 0)
{
if (ebtn_timer_sub(mstime, btn->click_last_time) >= btn->param->time_click_multi_max)
{
if (btn->event_mask & EBTN_EVT_MASK_ONCLICK)
{
ebtobj->evt_fn(btn, EBTN_EVT_ONCLICK);
}
btn->click_cnt = 0;
}
}
else
{
// check button in process
if (btn->flags & EBTN_FLAG_IN_PROCESS)
{
btn->flags &= ~EBTN_FLAG_IN_PROCESS;
}
}
}
}
}
int ebtn_init(ebtn_btn_t *btns, uint16_t btns_cnt, ebtn_btn_combo_t *btns_combo, uint16_t btns_combo_cnt, ebtn_get_state_fn get_state_fn, ebtn_evt_fn evt_fn)
{
ebtn_t *ebtobj = &ebtn_default;
if (evt_fn == NULL || get_state_fn == NULL /* Parameter is a must only in callback-only mode */
)
{
return 0;
}
memset(ebtobj, 0x00, sizeof(*ebtobj));
ebtobj->btns = btns;
ebtobj->btns_cnt = btns_cnt;
ebtobj->btns_combo = btns_combo;
ebtobj->btns_combo_cnt = btns_combo_cnt;
ebtobj->evt_fn = evt_fn;
ebtobj->get_state_fn = get_state_fn;
return 1;
}
/**
* \brief Get all button state with get_state_fn.
*
* \param[out] state_array: store the button state
*/
static void ebtn_get_current_state(bit_array_t *state_array)
{
ebtn_t *ebtobj = &ebtn_default;
ebtn_btn_dyn_t *target;
int i;
/* Process all buttons */
for (i = 0; i < ebtobj->btns_cnt; ++i)
{
/* Get button state */
uint8_t new_state = ebtobj->get_state_fn(&ebtobj->btns[i]);
// save state
bit_array_assign(state_array, i, new_state);
}
for (target = ebtobj->btn_dyn_head, i = ebtobj->btns_cnt; target; target = target->next, i++)
{
/* Get button state */
uint8_t new_state = ebtobj->get_state_fn(&target->btn);
// save state
bit_array_assign(state_array, i, new_state);
}
}
/**
* \brief Process the button state
*
* \param[in] btn: Button instance to process
* \param[in] old_state: all button old state
* \param[in] curr_state: all button current state
* \param[in] idx: Button internal key_idx
* \param[in] mstime: Current milliseconds system time
*/
static void ebtn_process_btn(ebtn_btn_t *btn, bit_array_t *old_state, bit_array_t *curr_state, int idx, ebtn_time_t mstime)
{
prv_process_btn(btn, bit_array_get(old_state, idx), bit_array_get(curr_state, idx), mstime);
}
/**
* \brief Process the combo-button state
*
* \param[in] btn: Button instance to process
* \param[in] old_state: all button old state
* \param[in] curr_state: all button current state
* \param[in] comb_key: Combo key
* \param[in] mstime: Current milliseconds system time
*/
static void ebtn_process_btn_combo(ebtn_btn_t *btn, bit_array_t *old_state, bit_array_t *curr_state, bit_array_t *comb_key, ebtn_time_t mstime)
{
BIT_ARRAY_DEFINE(tmp_data, EBTN_MAX_KEYNUM) = {0};
if (bit_array_num_bits_set(comb_key, EBTN_MAX_KEYNUM) == 0)
{
return;
}
bit_array_and(tmp_data, curr_state, comb_key, EBTN_MAX_KEYNUM);
uint8_t curr = bit_array_cmp(tmp_data, comb_key, EBTN_MAX_KEYNUM) == 0;
bit_array_and(tmp_data, old_state, comb_key, EBTN_MAX_KEYNUM);
uint8_t old = bit_array_cmp(tmp_data, comb_key, EBTN_MAX_KEYNUM) == 0;
prv_process_btn(btn, old, curr, mstime);
}
void ebtn_process_with_curr_state(bit_array_t *curr_state, ebtn_time_t mstime)
{
ebtn_t *ebtobj = &ebtn_default;
ebtn_btn_dyn_t *target;
ebtn_btn_combo_dyn_t *target_combo;
int i;
/* Process all buttons */
for (i = 0; i < ebtobj->btns_cnt; ++i)
{
ebtn_process_btn(&ebtobj->btns[i], ebtobj->old_state, curr_state, i, mstime);
}
for (target = ebtobj->btn_dyn_head, i = ebtobj->btns_cnt; target; target = target->next, i++)
{
ebtn_process_btn(&target->btn, ebtobj->old_state, curr_state, i, mstime);
}
/* Process all comb buttons */
for (i = 0; i < ebtobj->btns_combo_cnt; ++i)
{
ebtn_process_btn_combo(&ebtobj->btns_combo[i].btn, ebtobj->old_state, curr_state, ebtobj->btns_combo[i].comb_key, mstime);
}
for (target_combo = ebtobj->btn_combo_dyn_head; target_combo; target_combo = target_combo->next)
{
ebtn_process_btn_combo(&target_combo->btn.btn, ebtobj->old_state, curr_state, target_combo->btn.comb_key, mstime);
}
bit_array_copy_all(ebtobj->old_state, curr_state, EBTN_MAX_KEYNUM);
}
void ebtn_process(ebtn_time_t mstime)
{
BIT_ARRAY_DEFINE(curr_state, EBTN_MAX_KEYNUM) = {0};
// Get Current State
ebtn_get_current_state(curr_state);
ebtn_process_with_curr_state(curr_state, mstime);
}
int ebtn_get_total_btn_cnt(void)
{
ebtn_t *ebtobj = &ebtn_default;
int total_cnt = 0;
ebtn_btn_dyn_t *curr = ebtobj->btn_dyn_head;
total_cnt += ebtobj->btns_cnt;
while (curr)
{
total_cnt++;
curr = curr->next;
}
return total_cnt;
}
int ebtn_get_btn_index_by_key_id(uint16_t key_id)
{
ebtn_t *ebtobj = &ebtn_default;
int i = 0;
ebtn_btn_dyn_t *target;
for (i = 0; i < ebtobj->btns_cnt; ++i)
{
if (ebtobj->btns[i].key_id == key_id)
{
return i;
}
}
for (target = ebtobj->btn_dyn_head, i = ebtobj->btns_cnt; target; target = target->next, i++)
{
if (target->btn.key_id == key_id)
{
return i;
}
}
return -1;
}
ebtn_btn_t *ebtn_get_btn_by_key_id(uint16_t key_id)
{
ebtn_t *ebtobj = &ebtn_default;
int i = 0;
ebtn_btn_dyn_t *target;
for (i = 0; i < ebtobj->btns_cnt; ++i)
{
if (ebtobj->btns[i].key_id == key_id)
{
return &ebtobj->btns[i];
}
}
for (target = ebtobj->btn_dyn_head, i = ebtobj->btns_cnt; target; target = target->next, i++)
{
if (target->btn.key_id == key_id)
{
return &target->btn;
}
}
return NULL;
}
int ebtn_get_btn_index_by_btn(ebtn_btn_t *btn)
{
return ebtn_get_btn_index_by_key_id(btn->key_id);
}
int ebtn_get_btn_index_by_btn_dyn(ebtn_btn_dyn_t *btn)
{
return ebtn_get_btn_index_by_key_id(btn->btn.key_id);
}
void ebtn_combo_btn_add_btn_by_idx(ebtn_btn_combo_t *btn, int idx)
{
bit_array_set(btn->comb_key, idx);
}
void ebtn_combo_btn_remove_btn_by_idx(ebtn_btn_combo_t *btn, int idx)
{
bit_array_clear(btn->comb_key, idx);
}
void ebtn_combo_btn_add_btn(ebtn_btn_combo_t *btn, uint16_t key_id)
{
int idx = ebtn_get_btn_index_by_key_id(key_id);
if (idx < 0)
{
return;
}
ebtn_combo_btn_add_btn_by_idx(btn, idx);
}
void ebtn_combo_btn_remove_btn(ebtn_btn_combo_t *btn, uint16_t key_id)
{
int idx = ebtn_get_btn_index_by_key_id(key_id);
if (idx < 0)
{
return;
}
ebtn_combo_btn_remove_btn_by_idx(btn, idx);
}
int ebtn_is_btn_active(const ebtn_btn_t *btn)
{
return btn != NULL && (btn->flags & EBTN_FLAG_ONPRESS_SENT);
}
int ebtn_is_btn_in_process(const ebtn_btn_t *btn)
{
return btn != NULL && (btn->flags & EBTN_FLAG_IN_PROCESS);
}
int ebtn_is_in_process(void)
{
ebtn_t *ebtobj = &ebtn_default;
ebtn_btn_dyn_t *target;
ebtn_btn_combo_dyn_t *target_combo;
int i;
/* Process all buttons */
for (i = 0; i < ebtobj->btns_cnt; ++i)
{
if (ebtn_is_btn_in_process(&ebtobj->btns[i]))
{
return 1;
}
}
for (target = ebtobj->btn_dyn_head, i = ebtobj->btns_cnt; target; target = target->next, i++)
{
if (ebtn_is_btn_in_process(&target->btn))
{
return 1;
}
}
/* Process all comb buttons */
for (i = 0; i < ebtobj->btns_combo_cnt; ++i)
{
if (ebtn_is_btn_in_process(&ebtobj->btns_combo[i].btn))
{
return 1;
}
}
for (target_combo = ebtobj->btn_combo_dyn_head; target_combo; target_combo = target_combo->next)
{
if (ebtn_is_btn_in_process(&target_combo->btn.btn))
{
return 1;
}
}
return 0;
}
int ebtn_register(ebtn_btn_dyn_t *button)
{
ebtn_t *ebtobj = &ebtn_default;
ebtn_btn_dyn_t *curr = ebtobj->btn_dyn_head;
ebtn_btn_dyn_t *last = NULL;
if (!button)
{
return 0;
}
if (ebtn_get_total_btn_cnt() >= EBTN_MAX_KEYNUM)
{
return 0; /* reach max cnt. */
}
if (curr == NULL)
{
ebtobj->btn_dyn_head = button;
return 1;
}
while (curr)
{
if (curr == button)
{
return 0; /* already exist. */
}
last = curr;
curr = curr->next;
}
last->next = button;
return 1;
}
int ebtn_combo_register(ebtn_btn_combo_dyn_t *button)
{
ebtn_t *ebtobj = &ebtn_default;
ebtn_btn_combo_dyn_t *curr = ebtobj->btn_combo_dyn_head;
ebtn_btn_combo_dyn_t *last = NULL;
if (!button)
{
return 0;
}
if (curr == NULL)
{
ebtobj->btn_combo_dyn_head = button;
return 1;
}
while (curr)
{
if (curr == button)
{
return 0; /* already exist. */
}
last = curr;
curr = curr->next;
}
last->next = button;
return 1;
}
2gpio-lib/lib/ebtn/ebtn.h
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#ifndef _EBTN_H
#define _EBTN_H
#include <stdint.h>
#include <string.h>
#include "bit_array.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
// #define EBTN_CONFIG_TIMER_16
// here can change to uint16_t, if you want reduce RAM size.
#ifdef EBTN_CONFIG_TIMER_16
typedef uint16_t ebtn_time_t;
typedef int16_t ebtn_time_sign_t;
#else
typedef uint32_t ebtn_time_t;
typedef int32_t ebtn_time_sign_t;
#endif
/* Forward declarations */
struct ebtn_btn;
struct ebtn;
#define EBTN_MAX_KEYNUM (64)
/**
* \brief List of button events
*
*/
typedef enum
{
EBTN_EVT_ONPRESS = 0x00, /*!< On press event - sent when valid press is detected */
EBTN_EVT_ONRELEASE, /*!< On release event - sent when valid release event is detected (from
active to inactive) */
EBTN_EVT_ONCLICK, /*!< On Click event - sent when valid sequence of on-press and on-release
events occurs */
EBTN_EVT_KEEPALIVE, /*!< Keep alive event - sent periodically when button is active */
} ebtn_evt_t;
#define EBTN_EVT_MASK_ONPRESS (1 << EBTN_EVT_ONPRESS)
#define EBTN_EVT_MASK_ONRELEASE (1 << EBTN_EVT_ONRELEASE)
#define EBTN_EVT_MASK_ONCLICK (1 << EBTN_EVT_ONCLICK)
#define EBTN_EVT_MASK_KEEPALIVE (1 << EBTN_EVT_KEEPALIVE)
#define EBTN_EVT_MASK_ALL (EBTN_EVT_MASK_ONPRESS | EBTN_EVT_MASK_ONRELEASE | EBTN_EVT_MASK_ONCLICK | EBTN_EVT_MASK_KEEPALIVE)
/**
* @brief Returns the difference between two absolute times: time1-time2.
* @param[in] time1: Absolute time expressed in internal time units.
* @param[in] time2: Absolute time expressed in internal time units.
* @return resulting signed relative time expressed in internal time units.
*/
static inline ebtn_time_sign_t ebtn_timer_sub(ebtn_time_t time1, ebtn_time_t time2)
{
return time1 - time2;
}
// test time overflow error
// #define ebtn_timer_sub(time1, time2) (time1 - time2)
/**
* \brief Button event function callback prototype
* \param[in] btn: Button instance from array for which event occured
* \param[in] evt: Event type
*/
typedef void (*ebtn_evt_fn)(struct ebtn_btn *btn, ebtn_evt_t evt);
/**
* \brief Get button/input state callback function
*
* \param[in] btn: Button instance from array to read state
* \return `1` when button is considered `active`, `0` otherwise
*/
typedef uint8_t (*ebtn_get_state_fn)(struct ebtn_btn *btn);
/**
* \brief Button Params structure
*/
typedef struct ebtn_btn_param
{
/**
* \brief Minimum debounce time for press event in units of milliseconds
*
* This is the time when the input shall have stable active level to detect valid *onpress*
* event.
*
* When value is set to `> 0`, input must be in active state for at least
* minimum milliseconds time, before valid *onpress* event is detected.
*
* \note If value is set to `0`, debounce is not used and *press* event will be
* triggered immediately when input states goes to *inactive* state.
*
* To be safe not using this feature, external logic must ensure stable
* transition at input level.
*
*/
uint16_t time_debounce; /*!< Debounce time in milliseconds */
/**
* \brief Minimum debounce time for release event in units of milliseconds
*
* This is the time when the input shall have minimum stable released level to detect valid
* *onrelease* event.
*
* This setting can be useful if application wants to protect against
* unwanted glitches on the line when input is considered "active".
*
* When value is set to `> 0`, input must be in inactive low for at least
* minimum milliseconds time, before valid *onrelease* event is detected
*
* \note If value is set to `0`, debounce is not used and *release* event will be
* triggered immediately when input states goes to *inactive* state
*
*/
uint16_t time_debounce_release; /*!< Debounce time in milliseconds for release event */
/**
* \brief Minimum active input time for valid click event, in milliseconds
*
* Input shall be in active state (after debounce) at least this amount of time to even consider
* the potential valid click event. Set the value to `0` to disable this feature
*
*/
uint16_t time_click_pressed_min; /*!< Minimum pressed time for valid click event */
/**
* \brief Maximum active input time for valid click event, in milliseconds
*
* Input shall be pressed at most this amount of time to still trigger valid click.
* Set to `-1` to allow any time triggering click event.
*
* When input is active for more than the configured time, click even is not detected and is
* ignored.
*
*/
uint16_t time_click_pressed_max; /*!< Maximum pressed time for valid click event*/
/**
* \brief Maximum allowed time between last on-release and next valid on-press,
* to still allow multi-click events, in milliseconds
*
* This value is also used as a timeout length to send the *onclick* event to application from
* previously detected valid click events.
*
* If application relies on multi consecutive clicks, this is the max time to allow user
* to trigger potential new click, or structure will get reset (before sent to user if any
* clicks have been detected so far)
*
*/
uint16_t time_click_multi_max; /*!< Maximum time between 2 clicks to be considered consecutive
click */
/**
* \brief Keep-alive event period, in milliseconds
*
* When input is active, keep alive events will be sent through this period of time.
* First keep alive will be sent after input being considered
* active.
*
*/
uint16_t time_keepalive_period; /*!< Time in ms for periodic keep alive event */
/**
* \brief Maximum number of allowed consecutive click events,
* before structure gets reset to default value.
*
* \note When consecutive value is reached, application will get notification of
* clicks. This can be executed immediately after last click has been detected, or after
* standard timeout (unless next on-press has already been detected, then it is send to
* application just before valid next press event).
*
*/
uint16_t max_consecutive; /*!< Max number of consecutive clicks */
} ebtn_btn_param_t;
#define EBTN_PARAMS_INIT(_time_debounce, _time_debounce_release, _time_click_pressed_min, _time_click_pressed_max, _time_click_multi_max, \
_time_keepalive_period, _max_consecutive) \
{ \
.time_debounce = _time_debounce, .time_debounce_release = _time_debounce_release, .time_click_pressed_min = _time_click_pressed_min, \
.time_click_pressed_max = _time_click_pressed_max, .time_click_multi_max = _time_click_multi_max, .time_keepalive_period = _time_keepalive_period, \
.max_consecutive = _max_consecutive \
}
#define EBTN_BUTTON_INIT_RAW(_key_id, _param, _mask) \
{ \
.key_id = _key_id, .param = _param, .event_mask = _mask, \
}
#define EBTN_BUTTON_INIT(_key_id, _param) EBTN_BUTTON_INIT_RAW(_key_id, _param, EBTN_EVT_MASK_ALL)
#define EBTN_BUTTON_DYN_INIT(_key_id, _param) \
{ \
.next = NULL, .btn = EBTN_BUTTON_INIT(_key_id, _param), \
}
#define EBTN_BUTTON_COMBO_INIT_RAW(_key_id, _param, _mask) \
{ \
.comb_key = {0}, .btn = EBTN_BUTTON_INIT_RAW(_key_id, _param, _mask), \
}
#define EBTN_BUTTON_COMBO_INIT(_key_id, _param) \
{ \
.comb_key = {0}, .btn = EBTN_BUTTON_INIT(_key_id, _param), \
}
#define EBTN_BUTTON_COMBO_DYN_INIT(_key_id, _param) \
{ \
.next = NULL, .btn = EBTN_BUTTON_COMBO_INIT(_key_id, _param), \
}
#define EBTN_ARRAY_SIZE(_arr) sizeof(_arr) / sizeof((_arr)[0])
/**
* \brief Button structure
*/
typedef struct ebtn_btn
{
uint16_t key_id; /*!< User defined custom argument for callback function purpose */
uint8_t flags; /*!< Private button flags management */
uint8_t event_mask; /*!< Private button event mask management */
ebtn_time_t time_change; /*!< Time in ms when button state got changed last time after valid
debounce */
ebtn_time_t time_state_change; /*!< Time in ms when button state got changed last time */
ebtn_time_t keepalive_last_time; /*!< Time in ms of last send keep alive event */
ebtn_time_t click_last_time; /*!< Time in ms of last successfully detected (not sent!) click event
*/
uint16_t keepalive_cnt; /*!< Number of keep alive events sent after successful on-press
detection. Value is reset after on-release */
uint16_t click_cnt; /*!< Number of consecutive clicks detected, respecting maximum timeout
between clicks */
const ebtn_btn_param_t *param;
} ebtn_btn_t;
/**
* \brief ComboButton structure
*/
typedef struct ebtn_btn_combo
{
BIT_ARRAY_DEFINE(comb_key, EBTN_MAX_KEYNUM); /*!< select key index - `1` means active, `0` means inactive */
ebtn_btn_t btn;
} ebtn_btn_combo_t;
/**
* \brief Dynamic Button structure
*/
typedef struct ebtn_btn_dyn
{
struct ebtn_btn_dyn *next; /*!< point to next button */
ebtn_btn_t btn;
} ebtn_btn_dyn_t;
/**
* \brief Dynamic ComboButton structure
*/
typedef struct ebtn_btn_combo_dyn
{
struct ebtn_btn_combo_dyn *next; /*!< point to next combo-button */
ebtn_btn_combo_t btn;
} ebtn_btn_combo_dyn_t;
/**
* \brief easy_button group structure
*/
typedef struct ebtn
{
ebtn_btn_t *btns; /*!< Pointer to buttons array */
uint16_t btns_cnt; /*!< Number of buttons in array */
ebtn_btn_combo_t *btns_combo; /*!< Pointer to comb-buttons array */
uint16_t btns_combo_cnt; /*!< Number of comb-buttons in array */
ebtn_btn_dyn_t *btn_dyn_head; /*!< Pointer to btn-dynamic list */
ebtn_btn_combo_dyn_t *btn_combo_dyn_head; /*!< Pointer to btn-combo-dynamic list */
ebtn_evt_fn evt_fn; /*!< Pointer to event function */
ebtn_get_state_fn get_state_fn; /*!< Pointer to get state function */
BIT_ARRAY_DEFINE(old_state, EBTN_MAX_KEYNUM); /*!< Old button state - `1` means active, `0` means inactive */
} ebtn_t;
/**
* \brief Button processing function, that reads the inputs and makes actions accordingly.
*
*
* \param[in] mstime: Current system time in milliseconds
*/
void ebtn_process(ebtn_time_t mstime);
/**
* \brief Button processing function, with all button input state.
*
* \param[in] curr_state: Current all button input state
* \param[in] mstime: Current system time in milliseconds
*/
void ebtn_process_with_curr_state(bit_array_t *curr_state, ebtn_time_t mstime);
/**
* \brief Check if button is active.
* Active is considered when initial debounce period has been a pass.
* This is the period between on-press and on-release events.
*
* \param[in] btn: Button handle to check
* \return `1` if active, `0` otherwise
*/
int ebtn_is_btn_active(const ebtn_btn_t *btn);
/**
* \brief Check if button is in process.
* Used for low-power processing, indicating that the buttons are temporarily idle, and embedded systems can consider entering deep sleep.
*
* \param[in] btn: Button handle to check
* \return `1` if in process, `0` otherwise
*/
int ebtn_is_btn_in_process(const ebtn_btn_t *btn);
/**
* \brief Check if some button is in process.
* Used for low-power processing, indicating that the buttons are temporarily idle, and embedded systems can consider entering deep sleep.
*
* \return `1` if in process, `0` otherwise
*/
int ebtn_is_in_process(void);
/**
* \brief Initialize button manager
* \param[in] btns: Array of buttons to process
* \param[in] btns_cnt: Number of buttons to process
* \param[in] btns_combo: Array of combo-buttons to process
* \param[in] btns_combo_cnt: Number of combo-buttons to process
* \param[in] get_state_fn: Pointer to function providing button state on demand.
* \param[in] evt_fn: Button event function callback
*
* \return `1` on success, `0` otherwise
*/
int ebtn_init(ebtn_btn_t *btns, uint16_t btns_cnt, ebtn_btn_combo_t *btns_combo, uint16_t btns_combo_cnt, ebtn_get_state_fn get_state_fn, ebtn_evt_fn evt_fn);
/**
* @brief Register a dynamic button
*
* @param button: Dynamic button structure instance
* \return `1` on success, `0` otherwise
*/
int ebtn_register(ebtn_btn_dyn_t *button);
/**
* \brief Register a dynamic combo-button
* \param[in] button: Dynamic combo-button structure instance
*
* \return `1` on success, `0` otherwise
*/
int ebtn_combo_register(ebtn_btn_combo_dyn_t *button);
/**
* \brief Get the current total button cnt
*
* \return size of button.
*/
int ebtn_get_total_btn_cnt(void);
/**
* \brief Get the internal key_idx of the key_id
* \param[in] key_id: key_id
*
* \return '-1' on error, other is key_idx
*/
int ebtn_get_btn_index_by_key_id(uint16_t key_id);
/**
* \brief Get the internal btn instance of the key_id, here is the button instance, and what is dynamically registered is also to obtain its button
* instance
*
* \param[in] key_id: key_id
*
* \return 'NULL' on error, other is button instance
*/
ebtn_btn_t *ebtn_get_btn_by_key_id(uint16_t key_id);
/**
* \brief Get the internal key_idx of the button
* \param[in] btn: Button
*
* \return '-1' on error, other is key_idx
*/
int ebtn_get_btn_index_by_btn(ebtn_btn_t *btn);
/**
* \brief Get the internal key_idx of the dynamic button
* \param[in] btn: Button
*
* \return '-1' on error, other is key_idx
*/
int ebtn_get_btn_index_by_btn_dyn(ebtn_btn_dyn_t *btn);
/**
* \brief Bind combo-button key with key_idx
* \param[in] btn: Combo Button
* \param[in] idx: key_idx
*
*/
void ebtn_combo_btn_add_btn_by_idx(ebtn_btn_combo_t *btn, int idx);
/**
* \brief Remove combo-button key with key_idx
* \param[in] btn: Combo Button
* \param[in] idx: key_idx
*
*/
void ebtn_combo_btn_remove_btn_by_idx(ebtn_btn_combo_t *btn, int idx);
/**
* \brief Bind combo-button key with key_id, make sure key_id(button) is already register.
* \param[in] btn: Combo Button
* \param[in] key_id: key_id
*
*/
void ebtn_combo_btn_add_btn(ebtn_btn_combo_t *btn, uint16_t key_id);
/**
* \brief Remove combo-button key with key_id, make sure key_id(button) is already
* register. \param[in] btn: Combo Button \param[in] key_id: key_id
*
*/
void ebtn_combo_btn_remove_btn(ebtn_btn_combo_t *btn, uint16_t key_id);
/**
* \brief Get keep alive period for specific button
* \param[in] btn: Button instance to get keep alive period for
* \return Keep alive period in `ms`
*/
#define ebtn_keepalive_get_period(btn) ((btn)->time_keepalive_period)
/**
* \brief Get actual number of keep alive counts since the last on-press event.
* It is set to `0` if btn isn't pressed
* \param[in] btn: Button instance to get keep alive period for
* \return Number of keep alive events since on-press event
*/
#define ebtn_keepalive_get_count(btn) ((btn)->keepalive_cnt)
/**
* \brief Get number of keep alive counts for specific required time in milliseconds.
* It will calculate number of keepalive ticks specific button shall make,
* before requested time is reached.
*
* Result of the function can be used with \ref ebtn_keepalive_get_count which returns
* actual number of keep alive counts since last on-press event of the button.
*
* \note Value is always integer aligned, with granularity of one keepalive time period
* \note Implemented as macro, as it may be optimized by compiler when static keep alive
* is used
*
* \param[in] btn: Button to use for check
* \param[in] ms_time: Time in ms to calculate number of keep alive counts
* \return Number of keep alive counts
*/
#define ebtn_keepalive_get_count_for_time(btn, ms_time) ((ms_time) / ebtn_keepalive_get_period(btn))
/**
* \brief Get number of consecutive click events on a button
* \param[in] btn: Button instance to get number of clicks
* \return Number of consecutive clicks on a button
*/
#define ebtn_click_get_count(btn) ((btn)->click_cnt)
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _EBTN_H */
2gpio-lib/lib/ebtn/ebtn_cb.c
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#include "ebtn_cb.h"
/* ---------------- 按钮参数配置 ---------------- */
static const ebtn_btn_param_t default_param = EBTN_PARAMS_INIT
(
20, // 按下去抖时间(ms)
20, // 释放去抖时间(ms)
20, // 点击最短时间(ms)
300, // 点击最长时间(ms)
200, // 连击间隔最大值(ms)
500, // 长按KEEPALIVE间隔(ms)
10 // 最大连续点击次数
);
/* ---------------- 按钮ID定义 ---------------- */
typedef enum
{
USER_BUTTON1 = 0,
USER_BUTTON_MAX,
} user_button_t;
/* ---------------- 按钮对象 ---------------- */
static ebtn_btn_t btns[] =
{
EBTN_BUTTON_INIT(USER_BUTTON1, &default_param),
};
/* ---------------- 获取按键状态 ---------------- */
static uint8_t prv_btn_get_state(struct ebtn_btn* btn)
{
switch(btn->key_id)
{
case USER_BUTTON1:
return gpio_get(GPIOC, GPIO13) == GPIO13;
default:
return 0;
}
}
/* ---------------- 事件回调函数 ---------------- */
static void prv_btn_event(struct ebtn_btn* btn, ebtn_evt_t evt)
{
switch(evt)
{
case EBTN_EVT_ONPRESS:
break;
case EBTN_EVT_ONRELEASE:
break;
case EBTN_EVT_ONCLICK:
if((ebtn_click_get_count(btn) == 2) && (btn->key_id == USER_BUTTON1))
{
gpio_toggle(GPIOE, GPIO3);
}
//printf("[BTN %d] Clicked, count=%d\r\n", btn->key_id, ebtn_click_get_count(btn));
break;
case EBTN_EVT_KEEPALIVE:
if(btn->key_id == USER_BUTTON1)
{
gpio_toggle(GPIOE, GPIO3);
}
//printf("[BTN %d] Keepalive, cnt=%d\r\n", btn->key_id, ebtn_keepalive_get_count(btn));
break;
default:
break;
}
}
/* ---------------- 系统时间 ---------------- */
static uint32_t ebtn_user_get_tick(void)
{
return systick;
}
/* ---------------- 初始化函数 ---------------- */
void ebtn_user_init(void)
{
ebtn_init(btns,
EBTN_ARRAY_SIZE(btns),
NULL, 0, // 无组合键
prv_btn_get_state,
prv_btn_event);
}
/* ---------------- 周期处理函数 ---------------- */
void ebtn_user_process(void)
{
ebtn_process(ebtn_user_get_tick());
}
2gpio-lib/lib/ebtn/ebtn_cb.h
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#ifndef __EBTN_CB_H_
#define __EBTN_CB_H_
#include "ebtn.h"
#include "gpio.h"
#include "systick.h"
#ifdef __cplusplus
extern "C" {
#endif
void ebtn_user_init(void);
void ebtn_user_process(void);
#ifdef __cplusplus
}
#endif
#endif
2gpio-lib/makefile
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# this is the build file for project stm32h7
# it is autogenerated by the xmake build system.
# do not edit by hand.
ifneq ($(VERBOSE),1)
VV=@
endif
CU=/usr/bin/clang
RC=/home/time/.cargo/bin/rustc
MM=/usr/bin/gcc
AS=/usr/bin/gcc
GC=/usr/local/go/bin/go
CXX=/usr/bin/g++
CC=/usr/bin/gcc
MXX=/usr/bin/g++
SH=/usr/bin/g++
RCSH=/home/time/.cargo/bin/rustc
GCAR=/usr/local/go/bin/go
AR=/usr/bin/ar
RCAR=/home/time/.cargo/bin/rustc
GCLD=/usr/local/go/bin/go
LD=/usr/bin/g++
RCLD=/home/time/.cargo/bin/rustc
lib-ebtn_AR=/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc-ar
lib-ebtn_CC=/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc
gpio-lib_LD=/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-g++
gpio-lib_CC=/home/time/doc/mybin/arm-none-eabi/bin/arm-none-eabi-gcc
lib-ebtn_CCFLAGS=-g -O0 -I../../libopencm3/include -Iuser/inc -Ilib/ebtn -DSTM32H7 -mthumb -mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard
lib-ebtn_ARFLAGS=-cr
gpio-lib_CCFLAGS=-g -O0 -I../../libopencm3/include -Iuser/inc -Ilib/ebtn -DSTM32H7 -mthumb -mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard
gpio-lib_LDFLAGS=-L../../libopencm3/lib "-L\"build/MCU/ARM Cortex-M7/release\"" -llib-ebtn -lopencm3_stm32h7 -lc -lgcc -lnosys -mthumb -mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard -T./cortex-m-generic.ld --static -nostartfiles -Wl,--gc-sections -Wl,-Map=/home/time/doc/codefile/embe/Blog/stm32/stm32h7/2gpio-lib/bin/gpio-lib.map,-cref
default: lib-ebtn lib gpio-lib
all: lib-ebtn lib gpio-lib
.PHONY: default all lib-ebtn lib gpio-lib
lib-ebtn: "build/MCU/ARM Cortex-M7/release/liblib-ebtn.a"
"build/MCU/ARM Cortex-M7/release/liblib-ebtn.a": "build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn_cb.c.o" "build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn.c.o"
@echo linking.release liblib-ebtn.a"
@mkdir -p "build/MCU/ARM Cortex-M7/release
$(VV)$(lib-ebtn_AR) $(lib-ebtn_ARFLAGS) "\"build/MCU/ARM Cortex-M7/release/liblib-ebtn.a\"" "\"build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn_cb.c.o\"" "\"build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn.c.o\""
"build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn_cb.c.o": lib/ebtn/ebtn_cb.c
@echo compiling.release lib/ebtn/ebtn_cb.c
@mkdir -p "build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn
$(VV)$(lib-ebtn_CC) -c $(lib-ebtn_CCFLAGS) -o "\"build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn_cb.c.o\"" lib/ebtn/ebtn_cb.c
"build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn.c.o": lib/ebtn/ebtn.c
@echo compiling.release lib/ebtn/ebtn.c
@mkdir -p "build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn
$(VV)$(lib-ebtn_CC) -c $(lib-ebtn_CCFLAGS) -o "\"build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn.c.o\"" lib/ebtn/ebtn.c
lib: lib-ebtn
gpio-lib: bin/gpio-lib.elf
bin/gpio-lib.elf: lib "build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/gpio.c.o" "build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/main.c.o" "build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/systick.c.o"
@echo linking.release gpio-lib.elf
@mkdir -p bin
$(VV)$(gpio-lib_LD) -o bin/gpio-lib.elf "\"build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/gpio.c.o\"" "\"build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/main.c.o\"" "\"build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/systick.c.o\"" $(gpio-lib_LDFLAGS)
"build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/gpio.c.o": user/src/gpio.c
@echo compiling.release user/src/gpio.c
@mkdir -p "build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src
$(VV)$(gpio-lib_CC) -c $(gpio-lib_CCFLAGS) -o "\"build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/gpio.c.o\"" user/src/gpio.c
"build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/main.c.o": user/src/main.c
@echo compiling.release user/src/main.c
@mkdir -p "build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src
$(VV)$(gpio-lib_CC) -c $(gpio-lib_CCFLAGS) -o "\"build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/main.c.o\"" user/src/main.c
"build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/systick.c.o": user/src/systick.c
@echo compiling.release user/src/systick.c
@mkdir -p "build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src
$(VV)$(gpio-lib_CC) -c $(gpio-lib_CCFLAGS) -o "\"build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/systick.c.o\"" user/src/systick.c
clean: clean_lib-ebtn clean_lib clean_gpio-lib
clean_lib-ebtn:
@rm -rf "build/MCU/ARM Cortex-M7/release/liblib-ebtn.a"
@rm -rf "build/MCU/ARM Cortex-M7/release/lib-ebtn.sym"
@rm -rf "build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn_cb.c.o"
@rm -rf "build/.objs/lib-ebtn/MCU/ARM Cortex-M7/release/lib/ebtn/ebtn.c.o"
clean_lib: clean_lib-ebtn
clean_gpio-lib: clean_lib
@rm -rf bin/gpio-lib.elf
@rm -rf bin/gpio-lib.sym
@rm -rf "build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/gpio.c.o"
@rm -rf "build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/main.c.o"
@rm -rf "build/.objs/gpio-lib/MCU/ARM Cortex-M7/release/user/src/systick.c.o"
2gpio-lib/stm32h7x.cfg
+308
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@@ -0,0 +1,308 @@
# SPDX-License-Identifier: GPL-2.0-or-later
# script for stm32h7x family
#
# stm32h7 devices support both JTAG and SWD transports.
#
source [find target/swj-dp.tcl]
source [find mem_helper.tcl]
if { [info exists CHIPNAME] } {
set _CHIPNAME $CHIPNAME
} else {
set _CHIPNAME stm32h7x
}
if { [info exists DUAL_BANK] } {
set $_CHIPNAME.DUAL_BANK $DUAL_BANK
unset DUAL_BANK
} else {
set $_CHIPNAME.DUAL_BANK 0
}
if { [info exists DUAL_CORE] } {
set $_CHIPNAME.DUAL_CORE $DUAL_CORE
unset DUAL_CORE
} else {
set $_CHIPNAME.DUAL_CORE 0
}
# Issue a warning when hla is used, and fallback to single core configuration
if { [set $_CHIPNAME.DUAL_CORE] && [using_hla] } {
echo "Warning : hla does not support multicore debugging"
set $_CHIPNAME.DUAL_CORE 0
}
if { [info exists USE_CTI] } {
set $_CHIPNAME.USE_CTI $USE_CTI
unset USE_CTI
} else {
set $_CHIPNAME.USE_CTI 0
}
# Issue a warning when DUAL_CORE=0 and USE_CTI=1, and fallback to USE_CTI=0
if { ![set $_CHIPNAME.DUAL_CORE] && [set $_CHIPNAME.USE_CTI] } {
echo "Warning : could not use CTI with a single core device, CTI is disabled"
set $_CHIPNAME.USE_CTI 0
}
set _ENDIAN little
# Work-area is a space in RAM used for flash programming
# By default use 64kB
if { [info exists WORKAREASIZE] } {
set _WORKAREASIZE $WORKAREASIZE
} else {
set _WORKAREASIZE 0x10000
}
#jtag scan chain
if { [info exists CPUTAPID] } {
set _CPUTAPID $CPUTAPID
} else {
if { [using_jtag] } {
set _CPUTAPID 0x6ba00477
} {
set _CPUTAPID 0x6ba02477
}
}
swj_newdap $_CHIPNAME cpu -irlen 4 -ircapture 0x1 -irmask 0xf -expected-id $_CPUTAPID
dap create $_CHIPNAME.dap -chain-position $_CHIPNAME.cpu
if {[using_jtag]} {
jtag newtap $_CHIPNAME bs -irlen 5
}
if {![using_hla]} {
# STM32H7 provides an APB-AP at access port 2, which allows the access to
# the debug and trace features on the system APB System Debug Bus (APB-D).
target create $_CHIPNAME.ap2 mem_ap -dap $_CHIPNAME.dap -ap-num 2
swo create $_CHIPNAME.swo -dap $_CHIPNAME.dap -ap-num 2 -baseaddr 0xE00E3000
tpiu create $_CHIPNAME.tpiu -dap $_CHIPNAME.dap -ap-num 2 -baseaddr 0xE00F5000
}
target create $_CHIPNAME.cpu0 cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap -ap-num 0
$_CHIPNAME.cpu0 configure -work-area-phys 0x20000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
flash bank $_CHIPNAME.bank1.cpu0 stm32h7x 0x08000000 0 0 0 $_CHIPNAME.cpu0
if {[set $_CHIPNAME.DUAL_BANK]} {
flash bank $_CHIPNAME.bank2.cpu0 stm32h7x 0x08100000 0 0 0 $_CHIPNAME.cpu0
}
if {[set $_CHIPNAME.DUAL_CORE]} {
target create $_CHIPNAME.cpu1 cortex_m -endian $_ENDIAN -dap $_CHIPNAME.dap -ap-num 3
$_CHIPNAME.cpu1 configure -work-area-phys 0x38000000 -work-area-size $_WORKAREASIZE -work-area-backup 0
flash bank $_CHIPNAME.bank1.cpu1 stm32h7x 0x08000000 0 0 0 $_CHIPNAME.cpu1
if {[set $_CHIPNAME.DUAL_BANK]} {
flash bank $_CHIPNAME.bank2.cpu1 stm32h7x 0x08100000 0 0 0 $_CHIPNAME.cpu1
}
}
# Make sure that cpu0 is selected
targets $_CHIPNAME.cpu0
if { [info exists QUADSPI] && $QUADSPI } {
set a [llength [flash list]]
set _QSPINAME $_CHIPNAME.qspi
flash bank $_QSPINAME stmqspi 0x90000000 0 0 0 $_CHIPNAME.cpu0 0x52005000
} else {
if { [info exists OCTOSPI1] && $OCTOSPI1 } {
set a [llength [flash list]]
set _OCTOSPINAME1 $_CHIPNAME.octospi1
flash bank $_OCTOSPINAME1 stmqspi 0x90000000 0 0 0 $_CHIPNAME.cpu0 0x52005000
}
if { [info exists OCTOSPI2] && $OCTOSPI2 } {
set b [llength [flash list]]
set _OCTOSPINAME2 $_CHIPNAME.octospi2
flash bank $_OCTOSPINAME2 stmqspi 0x70000000 0 0 0 $_CHIPNAME.cpu0 0x5200A000
}
}
# Clock after reset is HSI at 64 MHz, no need of PLL
adapter speed 1800
adapter srst delay 100
if {[using_jtag]} {
jtag_ntrst_delay 100
}
# use hardware reset
#
# The STM32H7 does not support connect_assert_srst mode because the AXI is
# unavailable while SRST is asserted, and that is used to access the DBGMCU
# component at 0x5C001000 in the examine-end event handler.
#
# It is possible to access the DBGMCU component at 0xE00E1000 via AP2 instead
# of the default AP0, and that works with SRST asserted; however, nonzero AP
# usage does not work with HLA, so is not done by default. That change could be
# made in a local configuration file if connect_assert_srst mode is needed for
# a specific application and a non-HLA adapter is in use.
reset_config srst_nogate
if {![using_hla]} {
# if srst is not fitted use SYSRESETREQ to
# perform a soft reset
$_CHIPNAME.cpu0 cortex_m reset_config sysresetreq
if {[set $_CHIPNAME.DUAL_CORE]} {
$_CHIPNAME.cpu1 cortex_m reset_config sysresetreq
}
# Set CSW[27], which according to ARM ADI v5 appendix E1.4 maps to AHB signal
# HPROT[3], which according to AMBA AHB/ASB/APB specification chapter 3.7.3
# makes the data access cacheable. This allows reading and writing data in the
# CPU cache from the debugger, which is far more useful than going straight to
# RAM when operating on typical variables, and is generally no worse when
# operating on special memory locations.
$_CHIPNAME.dap apcsw 0x08000000 0x08000000
}
$_CHIPNAME.cpu0 configure -event examine-end {
# Enable D3 and D1 DBG clocks
# DBGMCU_CR |= D3DBGCKEN | D1DBGCKEN
stm32h7x_dbgmcu_mmw 0x004 0x00600000 0
# Enable debug during low power modes (uses more power)
# DBGMCU_CR |= DBG_STANDBY | DBG_STOP | DBG_SLEEP D1 Domain
stm32h7x_dbgmcu_mmw 0x004 0x00000007 0
# DBGMCU_CR |= DBG_STANDBY | DBG_STOP | DBG_SLEEP D2 Domain
stm32h7x_dbgmcu_mmw 0x004 0x00000038 0
# Stop watchdog counters during halt
# DBGMCU_APB3FZ1 |= WWDG1
stm32h7x_dbgmcu_mmw 0x034 0x00000040 0
# DBGMCU_APB1LFZ1 |= WWDG2
stm32h7x_dbgmcu_mmw 0x03C 0x00000800 0
# DBGMCU_APB4FZ1 |= WDGLSD1 | WDGLSD2
stm32h7x_dbgmcu_mmw 0x054 0x000C0000 0
# Enable clock for tracing
# DBGMCU_CR |= TRACECLKEN
stm32h7x_dbgmcu_mmw 0x004 0x00100000 0
# RM0399 (id 0x450) M7+M4 with SWO Funnel
# RM0433 (id 0x450) M7 with SWO Funnel
# RM0455 (id 0x480) M7 without SWO Funnel
# RM0468 (id 0x483) M7 without SWO Funnel
# Enable CM7 and CM4 slave ports in SWO trace Funnel
# Works ok also on devices single core and without SWO funnel
# Hack, use stm32h7x_dbgmcu_mmw with big offset to control SWTF
# SWTF_CTRL |= ENS0 | ENS1
stm32h7x_dbgmcu_mmw 0x3000 0x00000003 0
}
$_CHIPNAME.cpu0 configure -event reset-init {
# Clock after reset is HSI at 64 MHz, no need of PLL
adapter speed 4000
}
# get _CHIPNAME from current target
proc stm32h7x_get_chipname {} {
set t [target current]
set sep [string last "." $t]
if {$sep == -1} {
return $t
}
return [string range $t 0 [expr {$sep - 1}]]
}
if {[set $_CHIPNAME.DUAL_CORE]} {
$_CHIPNAME.cpu1 configure -event examine-end {
set _CHIPNAME [stm32h7x_get_chipname]
global $_CHIPNAME.USE_CTI
# Stop watchdog counters during halt
# DBGMCU_APB3FZ2 |= WWDG1
stm32h7x_dbgmcu_mmw 0x038 0x00000040 0
# DBGMCU_APB1LFZ2 |= WWDG2
stm32h7x_dbgmcu_mmw 0x040 0x00000800 0
# DBGMCU_APB4FZ2 |= WDGLSD1 | WDGLSD2
stm32h7x_dbgmcu_mmw 0x058 0x000C0000 0
if {[set $_CHIPNAME.USE_CTI]} {
stm32h7x_cti_start
}
}
}
# like mrw, but with target selection
proc stm32h7x_mrw {used_target reg} {
return [$used_target read_memory $reg 32 1]
}
# like mmw, but with target selection
proc stm32h7x_mmw {used_target reg setbits clearbits} {
set old [stm32h7x_mrw $used_target $reg]
set new [expr {($old & ~$clearbits) | $setbits}]
$used_target mww $reg $new
}
# mmw for dbgmcu component registers, it accepts the register offset from dbgmcu base
# this procedure will use the mem_ap on AP2 whenever possible
proc stm32h7x_dbgmcu_mmw {reg_offset setbits clearbits} {
# use $_CHIPNAME.ap2 if possible, and use the proper dbgmcu base address
if {![using_hla]} {
set _CHIPNAME [stm32h7x_get_chipname]
set used_target $_CHIPNAME.ap2
set reg_addr [expr {0xE00E1000 + $reg_offset}]
} {
set used_target [target current]
set reg_addr [expr {0x5C001000 + $reg_offset}]
}
stm32h7x_mmw $used_target $reg_addr $setbits $clearbits
}
if {[set $_CHIPNAME.USE_CTI]} {
# create CTI instances for both cores
cti create $_CHIPNAME.cti0 -dap $_CHIPNAME.dap -ap-num 0 -baseaddr 0xE0043000
cti create $_CHIPNAME.cti1 -dap $_CHIPNAME.dap -ap-num 3 -baseaddr 0xE0043000
$_CHIPNAME.cpu0 configure -event halted { stm32h7x_cti_prepare_restart_all }
$_CHIPNAME.cpu1 configure -event halted { stm32h7x_cti_prepare_restart_all }
$_CHIPNAME.cpu0 configure -event debug-halted { stm32h7x_cti_prepare_restart_all }
$_CHIPNAME.cpu1 configure -event debug-halted { stm32h7x_cti_prepare_restart_all }
proc stm32h7x_cti_start {} {
set _CHIPNAME [stm32h7x_get_chipname]
# Configure Cores' CTIs to halt each other
# TRIGIN0 (DBGTRIGGER) and TRIGOUT0 (EDBGRQ) at CTM_CHANNEL_0
$_CHIPNAME.cti0 write INEN0 0x1
$_CHIPNAME.cti0 write OUTEN0 0x1
$_CHIPNAME.cti1 write INEN0 0x1
$_CHIPNAME.cti1 write OUTEN0 0x1
# enable CTIs
$_CHIPNAME.cti0 enable on
$_CHIPNAME.cti1 enable on
}
proc stm32h7x_cti_stop {} {
set _CHIPNAME [stm32h7x_get_chipname]
$_CHIPNAME.cti0 enable off
$_CHIPNAME.cti1 enable off
}
proc stm32h7x_cti_prepare_restart_all {} {
stm32h7x_cti_prepare_restart cti0
stm32h7x_cti_prepare_restart cti1
}
proc stm32h7x_cti_prepare_restart {cti} {
set _CHIPNAME [stm32h7x_get_chipname]
# Acknowlodge EDBGRQ at TRIGOUT0
$_CHIPNAME.$cti write INACK 0x01
$_CHIPNAME.$cti write INACK 0x00
}
}
2gpio-lib/user/inc/gpio.h
+8
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@@ -0,0 +1,8 @@
#ifndef _GPIO_H
#define _GPIO_H
#include "main.h"
void user_gpio_setup(void);
#endif
2gpio-lib/user/inc/main.h
+17
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@@ -0,0 +1,17 @@
#ifndef _MAIN_H
#define _MAIN_H
#include <stdint.h>
// 包含libopencm3内核的相关头文件
#include <libopencm3/cm3/systick.h> // 系统滴答定时器相关定义
#include <libopencm3/cm3/scb.h> // 系统控制块相关定义
// 包含STM32 H系列微控制器的相关头文件
#include <libopencm3/stm32/rcc.h> // 复位和时钟控制相关定义
#include <libopencm3/stm32/pwr.h> // 电源控制相关定义
#include <libopencm3/stm32/gpio.h> // 通用输入输出相关定义
#include <libopencm3/stm32/flash.h> // 闪存控制相关定义
#include <libopencm3/stm32/h7/nvic.h> // 中断向量控制器相关定义
#endif
2gpio-lib/user/inc/systick.h
+11
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@@ -0,0 +1,11 @@
#ifndef _SYSTICK_H
#define _SYSTICK_H
#include "main.h"
extern volatile uint32_t systick;
void user_delay_ms(uint32_t ms);
void systick_init(uint32_t ticks);
#endif
2gpio-lib/user/src/gpio.c
+47
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@@ -0,0 +1,47 @@
#include "gpio.h"
/**
* @brief 初始化用户GPIO引脚配置
*
* @details 该函数用于初始化和配置用户所需的GPIO引脚,主要包括以下配置：
* 1. 使能GPIOE时钟,配置PE3引脚为推挽输出模式,速度为2MHz,初始状态为低电平
* 2. 使能备份区域寄存器访问（通过设置PWR_CR1_DBP位）
* 3. 使能GPIOC时钟,配置PC13引脚为输入模式,并启用下拉电阻
* 这些配置通常用于设置LED控制引脚和按钮输入引脚等常见外设接口。
*
* @note 该函数应在系统初始化阶段调用,确保GPIO引脚在使用前已正确配置。
* PE3引脚配置为输出模式,可用于驱动LED或其他输出设备。
* PC13引脚配置为输入模式并启用下拉电阻,适合连接按钮或开关等输入设备。
* PWR_CR1_DBP位的设置允许访问备份寄存器,这在某些应用中可能是必要的。
*
* @warning 在调用此函数前,应确保系统时钟已经正确配置。
* 修改GPIO配置可能会影响连接到这些引脚的外设功能。
* 在多任务系统中,如果多个任务访问同一GPIO,可能需要添加同步机制。
*
* @see rcc_periph_clock_enable(), gpio_mode_setup(), gpio_set_output_options(), gpio_clear()
*/
void user_gpio_setup(void)
{
// 使能GPIOE端口的时钟,必须先使能时钟才能配置和使用该端口的引脚
rcc_periph_clock_enable(RCC_GPIOE);
// 配置GPIOE端口的引脚3为输出模式,不使用上拉或下拉电阻
gpio_mode_setup(GPIOE, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO3);
// 设置GPIOE端口引脚3的输出选项：推挽输出类型,速度为2MHz
gpio_set_output_options(GPIOE, GPIO_OTYPE_PP, GPIO_OSPEED_2MHZ, GPIO3);
// 将GPIOE端口引脚3设置为低电平,也就是灯灭
gpio_clear(GPIOE, GPIO3);
// 使能备份域访问,通过设置电源控制寄存器1的DBP位
// 这是访问RTC、备份寄存器等备份域外设的必要步骤
// PC13-PC15是备份域的GPIO引脚,需要使能备份域访问才能配置这些引脚
PWR_CR1 |= PWR_CR1_DBP;
// 使能GPIOC端口的时钟,必须先使能时钟才能配置和使用该端口的引脚
rcc_periph_clock_enable(RCC_GPIOC);
// 配置GPIOC端口的引脚13为输入模式,并启用下拉电阻
gpio_mode_setup(GPIOC, GPIO_MODE_INPUT, GPIO_PUPD_PULLDOWN, GPIO13);
}
2gpio-lib/user/src/main.c
+162
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@@ -0,0 +1,162 @@
#include "main.h"
#include "gpio.h"
#include "systick.h"
#include "ebtn_cb.h"
static void system_clock_setup(void);
/**
* @brief 主函数,程序入口点
*
* @details 该函数是程序的入口点,负责系统的初始化和主循环。主要执行以下步骤：
* 1. 设置中断优先级分组为16个优先级,无子优先级
* 2. 初始化系统时钟配置
* 3. 初始化SysTick定时器,设置为每毫秒产生一次中断
* 4. 初始化用户GPIO引脚配置
* 5. 进入主循环,检测按钮状态并控制LED
* 主循环中检测PC13引脚（按钮）的状态,当检测到按钮按下时,
* 进行消抖处理,然后切换PE3引脚（LED）的状态,并等待按钮释放。
*
* @note 该函数不会返回,除非发生严重错误。
* 主循环中的按钮检测包含了简单的消抖处理,通过延时和再次检测实现。
* 程序使用了轮询方式检测按钮状态,适用于简单的嵌入式应用。
*
* @warning 在修改此函数时,应确保系统初始化顺序正确,特别是时钟配置。
* 按钮消抖延时时间(20ms)可能需要根据实际硬件特性进行调整。
* 如果使用RTOS,此函数结构需要重新设计以适应任务调度。
*
* @see scb_set_priority_grouping(), system_clock_setup(), systick_init(),
* user_gpio_setup(), user_delay_ms(), gpio_get(), gpio_toggle()
*/
int main(void)
{
// 设置中断优先级分组为16个主优先级,无子优先级
// 这意味着每个中断都有独立的优先级,没有子优先级用于同一优先级中断的排序
scb_set_priority_grouping(SCB_AIRCR_PRIGROUP_GROUP16_NOSUB);
// 初始化系统时钟配置
system_clock_setup();
// 初始化SysTick定时器,参数1000U表示每秒产生1000次中断,即每1ms一次
systick_init(1000U);
// 初始化用户GPIO引脚配置
// 根据gpio的代码,这包括配置PE3为输出（LED）和PC13为输入（按钮）
user_gpio_setup();
// 初始化按键库
ebtn_user_init();
// 主循环,程序将在此无限循环
while (1)
{
// 处理按键事件,该函数可以放到其他可以周期运行的地方
ebtn_user_process();
user_delay_ms(5);
}
// 理论上不会执行到这里,因为上面是无限循环
// 这行代码主要是为了满足C语言标准中main函数应有返回值的要求
return 0;
}
/**
* @brief 系统时钟配置函数
*
* @details 该函数用于初始化和配置系统的时钟树,包括PLL锁相环、系统时钟分频、Flash等待状态
* 和电源管理设置。函数执行以下主要步骤：
* 1. 初始化GPIOH和SYSCFG时钟,配置GPIOH1引脚为输出模式
* 2. 设置PLL配置结构体的各个参数,包括时钟源选择、PLL分频系数等
* 3. 配置系统时钟分频参数,确定各个总线的时钟频率
* 4. 设置Flash等待状态,确保Flash访问速度与系统时钟频率匹配
* 5. 配置电压缩放比例和电源模式
* 6. 应用PLL配置,完成系统时钟设置
* 这些配置参数与STM32CubeMX工具生成的配置可以一一对应,便于调试和验证。
*
* @note 该函数应在系统启动初期调用,确保系统时钟正确配置后再进行其他初始化。
* 函数中配置的GPIOH1引脚可能用于指示时钟配置状态或调试目的。
* PLL配置基于25MHz的外部高速晶振(HSE),通过PLL1产生系统时钟。
* PLL2和PLL3可用于为特定外设提供时钟。
* 系统时钟配置完成后,CPU将运行在较高频率(约480MHz),具体取决于PLL1配置。
*
* @warning 修改此函数中的时钟配置参数时,应确保不超过芯片的最大工作频率限制。
* 不正确的时钟配置可能导致系统不稳定或无法正常工作。
* 修改时钟配置可能会影响依赖于精确时序的外设(如UART、SPI等)。
* 在多任务系统中,修改系统时钟可能需要重新调整定时器和调度器的配置。
*
* @see rcc_periph_clock_enable(), gpio_mode_setup(), gpio_set_output_options(),
* gpio_set(), rcc_clock_setup_pll()
*/
static void system_clock_setup(void)
{
// 初始化PLL配置结构体,所有成员清零
struct rcc_pll_config pll_config = {0};
// 使能GPIOH端口时钟,用于配置GPIOH1引脚
// OSC_IN是GPIOH0,OSC_OUT是GPIOH1
rcc_periph_clock_enable(RCC_GPIOH);
// 使能SYSCFG时钟,用于系统配置
rcc_periph_clock_enable(RCC_SYSCFG);
// 配置GPIOH1引脚为输出模式,启用上拉电阻
gpio_mode_setup(GPIOH, GPIO_MODE_OUTPUT, GPIO_PUPD_PULLUP, GPIO1);
// 设置GPIOH1引脚为推挽输出,速度为50MHz
gpio_set_output_options(GPIOH, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO1);
// 短暂延时,确保GPIO配置稳定
for (unsigned i = 0; i < 20; i++)
{
__asm__("nop"); // 空操作指令,用于延时
}
// 将GPIOH1引脚设置为高电平
gpio_set(GPIOH, GPIO1);
// 设置系统时钟源为PLL
pll_config.sysclock_source = RCC_PLL;
// 设置PLL时钟源为外部高速晶振(HSE)
pll_config.pll_source = RCC_PLLCKSELR_PLLSRC_HSE;
// 设置HSE频率为25MHz
pll_config.hse_frequency = 25000000U;
// 配置PLL1参数,这一部分可以和CubeMX进行一一对应
// 系统时钟频率 = HSE / M * N / P = 25MHz / 5 * 192 / 2 = 480MHz
pll_config.pll1.divm = 5;
pll_config.pll1.divn = 192;
pll_config.pll1.divp = 2;
pll_config.pll1.divq = 2;
pll_config.pll1.divr = 2;
// 配置PLL2参数
pll_config.pll2.divm = 32;
pll_config.pll2.divn = 129;
pll_config.pll2.divp = 2;
pll_config.pll2.divq = 2;
pll_config.pll2.divr = 2;
// 配置PLL3参数
pll_config.pll3.divm = 32;
pll_config.pll3.divn = 129;
pll_config.pll3.divp = 2;
pll_config.pll3.divq = 2;
pll_config.pll3.divr = 2;
// 配置系统时钟分频参数,还是可以和CubeMX进行一一对应
pll_config.core_pre = RCC_D1CFGR_D1CPRE_BYP; // CPU核心时钟不分频
pll_config.hpre = RCC_D1CFGR_D1HPRE_DIV2; // AHB总线时钟2分频
pll_config.ppre1 = RCC_D2CFGR_D2PPRE_DIV2; // APB1总线时钟2分频
pll_config.ppre2 = RCC_D2CFGR_D2PPRE_DIV2; // APB2总线时钟2分频
pll_config.ppre3 = RCC_D1CFGR_D1PPRE_DIV2; // APB3总线时钟2分频
pll_config.ppre4 = RCC_D3CFGR_D3PPRE_DIV2; // APB4总线时钟2分频
// 设置Flash等待状态为4个周期,确保在480MHz系统时钟下能正确访问Flash
pll_config.flash_waitstates = FLASH_ACR_LATENCY_4WS;
// 配置电压缩放和电源模式
pll_config.voltage_scale = PWR_VOS_SCALE_0; // 电压缩放级别0,最高性能模式
pll_config.power_mode = PWR_SYS_LDO; // 使用LDO(低压差线性稳压器)电源模式
pll_config.smps_level = 0; // SMPS(开关模式电源)级别
// 应用PLL配置,完成系统时钟设置
rcc_clock_setup_pll(&pll_config);
}
2gpio-lib/user/src/systick.c
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#include "systick.h"
/**
* @brief 系统毫秒计数器
*
* @details 这是一个全局变量,用于记录系统运行的毫秒数。
* 该变量在SysTick定时器中断服务程序(sys_tick_handler)中递增,
* 通常用于实现系统计时和延时功能（如user_delay_ms函数）。
* 变量被声明为volatile,确保编译器不会优化掉对它的访问,
* 因为它可以在中断上下文中被修改,而主程序可能需要读取它的值。
*
* @note 该变量的初始值为0,表示系统启动后经过的毫秒数。
* 变量的递增频率取决于SysTick定时器的配置,通常为每毫秒递增一次。
* 在32位系统上,该变量约每49.7天会溢出一次（从2^32-1回到0）。
*
* @warning 在多任务或多线程环境中访问此变量时,可能需要添加适当的同步机制,
* 如禁用中断或使用原子操作,以避免竞态条件。
* 不应直接修改此变量的值,除非有特殊需求并了解其影响。
*
* @see sys_tick_handler(), user_delay_ms(), systick_init()
*/
volatile uint32_t systick = 0;
/**
* @brief 执行WFI(Wait For Interrupt)指令,使处理器进入低功耗状态
*
* @details 该函数使用内联汇编执行ARM Cortex-M处理器的WFI指令。
* WFI指令会使处理器进入低功耗状态,直到下一个中断发生时才会唤醒处理器。
* 该函数被声明为静态内联(always_inline),确保总是被内联展开以减少函数调用开销。
* 使用volatile关键字防止编译器优化掉看似"无用"的指令。
*
* @note 该函数不会改变处理器状态,只是暂停执行直到中断发生。
* 在中断发生时,处理器会恢复执行WFI指令之后的代码。
* 该函数通常用于在等待事件或延时期间降低系统功耗。
*
* @warning 使用该函数时,确保系统中存在能够唤醒处理器的中断源,
* 否则处理器可能会一直保持低功耗状态。
*/
static inline __attribute__((always_inline)) void __WFI(void)
{
__asm volatile("wfi");
}
/**
* @brief 实现毫秒级延时的函数
*
* @details 该函数使用SysTick定时器实现精确的毫秒级延时。函数记录当前的SysTick值作为起始时间,
* 然后进入循环等待,直到经过的时间达到指定的毫秒数。在等待期间,CPU会通过WFI指令
* 进入低功耗状态,以降低系统功耗。该函数适用于裸机系统中的简单延时需求。
*
* @param ms 要延时的毫秒数,取值范围为1到(2^32-1)毫秒。
*
* @note 该函数是阻塞式的,在延时期间CPU无法执行其他任务。
* 函数依赖于全局变量systick的正确更新,通常systick在SysTick中断服务程序中递增。
* SysTick定时器应配置为每毫秒产生一次中断。
* 函数内部使用了WFI指令降低功耗,但实际延时的精度取决于中断的频率和响应时间。
*
* @warning 如果系统中没有中断或中断被禁用,使用此函数可能导致系统死锁。
* 在实时性要求高的系统中,应谨慎使用阻塞式延时函数。
* 最大延时时间受限于32位无符号整数的最大值(约49.7天)。
*
* @see systick, __WFI()
*/
void user_delay_ms(uint32_t ms)
{
// 记录开始延时的时刻（systick的当前值）
uint32_t start = systick;
// 循环等待,直到经过的时间达到指定的毫秒数
while (systick - start < ms)
{
// 进入低功耗模式,等待中断唤醒,有助于在延时时降低CPU功耗
__WFI();
}
}
/**
* @brief 初始化SysTick定时器
*
* @details 该函数用于初始化和配置ARM Cortex-M的SysTick定时器,使其能够以指定的频率产生中断。
* 函数执行以下配置步骤：
* 1. 设置SysTick时钟源为AHB总线时钟
* 2. 根据指定的中断频率计算并设置重载值
* 3. 清除当前计数值
* 4. 设置中断优先级
* 5. 使能中断和计数器
* 配置完成后,SysTick定时器将开始工作,并在每次计数到0时产生中断。
*
* @param ticks 指定SysTick定时器的中断频率,单位为Hz（每秒中断次数）
* 例如,传入1000表示定时器每1秒产生1000次中断,即每1毫秒产生一次中断。
*
* @note 该函数依赖于rcc_get_bus_clk_freq()函数获取CPU时钟频率。
* SysTick中断优先级被设置为15（最低优先级）,在需要更高实时性的应用中可能需要调整。
* 函数使用了库函数封装的方式操作SysTick寄存器,而不是直接寄存器访问。
* 重载值的计算方式为：(CPU时钟频率 / ticks) - 1,确保ticks值不能导致计算结果超过24位最大值(16,777,215)。
*
* @warning 如果ticks参数过大,可能导致重载值小于1,此时定时器可能无法正常工作。
* 在调用此函数前,应确保CPU时钟已经正确配置。
* 此函数会覆盖任何之前的SysTick配置,包括中断处理函数的注册。
*
* @see sys_tick_handler(), systick, user_delay_ms()
*/
void systick_init(uint32_t ticks)
{
// 设置SysTick时钟源为AHB总线时钟
systick_set_clocksource(STK_CSR_CLKSOURCE_AHB);
// 计算重载值：总线频率除以定时器周期数减1
systick_set_reload((rcc_get_bus_clk_freq(RCC_CPUCLK) / ticks) - 1UL);
// 清除SysTick当前值寄存器（被注释掉的代码）
//STK_CVR = 0UL;
// 使用函数方式清除SysTick计数器
systick_clear();
// 设置SysTick中断优先级为15（最低优先级）
nvic_set_priority(NVIC_SYSTICK_IRQ, 15);
// 使用函数方式配置SysTick控制寄存器（被注释掉的代码）
// STK_CSR = STK_CSR_CLKSOURCE | STK_CSR_TICKINT | STK_CSR_ENABLE;
// 分别使能SysTick中断和计数器
systick_interrupt_enable();
systick_counter_enable();
}
/**
* @brief SysTick定时器中断服务函数
*
* @details 该函数是SysTick定时器的中断服务程序(ISR),每当SysTick定时器计数到0时触发。
* 函数的主要功能是递增全局变量systick,该变量通常用于系统计时和延时功能。
*
* @note 该函数应保持简短高效,因为它是中断服务程序,执行时间过长可能影响系统实时性。
* systick变量通常定义为全局变量,用于记录系统运行的毫秒数（假设SysTick配置为1ms中断一次）。
* 在多任务系统中,此函数可能需要添加任务切换相关的代码。
*
* @warning 此函数不应被用户代码直接调用,它是由硬件自动调用的中断服务程序。
* 在函数内部应避免调用可能导致长时间阻塞的函数或复杂的计算。
* 如果systick变量在多线程/多任务环境中被访问,可能需要添加适当的同步机制。
*
* @see systick, systick_init(), user_delay_ms()
*/
void sys_tick_handler(void)
{
systick++;
}
2gpio-lib/xmake.lua
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-- 工程名
set_project("stm32h7")
-- 定义工具链
toolchain("arm-none-eabi")
set_kind("standalone")
set_sdkdir("/home/time/doc/mybin/arm-none-eabi")
toolchain_end()
-- 使用自定义的 arm-none-eabi 工具链
set_toolchains("arm-none-eabi")
-- 设置平台与架构
set_plat("MCU")
set_arch("ARM Cortex-M7")
-- 编译优化与调试
set_optimize("none")
set_symbols("debug")
-- 全局架构 & FPU
add_cxflags("-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", {force = true})
add_asflags("-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", {force = true})
add_ldflags("-mthumb", "-mcpu=cortex-m7", "-mfpu=fpv5-d16", "-mfloat-abi=hard", {force = true})
-- 全局头文件路径 (libopencm3)
add_includedirs("../../libopencm3/include")
-- 全局链接 libopencm3
add_linkdirs("../../libopencm3/lib")
add_links("opencm3_stm32h7")
-- 全局额外链接选项
add_ldflags("-T./cortex-m-generic.ld", "--static", "-nostartfiles", "-Wl,--gc-sections", {force = true})
add_syslinks("c", "gcc", "nosys")
-- 全局宏定义
add_defines("STM32H7")
-- 全局用户头文件路径
add_includedirs("user/inc")
-- 目标程序
target("gpio-lib")
set_kind("binary")
add_files("user/src/*.c")
set_targetdir("$(projectdir)/bin")
add_deps("lib")
on_load(function (target)
target:set("filename", target:name() .. ".elf")
-- 生成 map 文件并带 cref，显示 cross reference
target:add("ldflags",
"-Wl,-Map=" .. path.join(target:targetdir(), target:name() .. ".map") .. ",-cref",
{force = true}
)
end)
-- 生成额外文件
after_build(function (target)
local elf = target:targetfile()
local bindir = target:targetdir()
local name = target:name()
-- 常见格式
os.execv("arm-none-eabi-objcopy", {"-Obinary", elf, path.join(bindir, name .. ".bin")})
os.execv("arm-none-eabi-objcopy", {"-Oihex", elf, path.join(bindir, name .. ".hex")})
os.execv("arm-none-eabi-objcopy", {"-Osrec", elf, path.join(bindir, name .. ".srec")})
os.execv("arm-none-eabi-objdump", {"-S", elf}, {stdout = path.join(bindir, name .. ".list")})
-- 🔥 符号表 (对应 MDK Image Symbol Table)
os.execv("arm-none-eabi-nm", {"-n", elf}, {stdout = path.join(bindir, name .. ".sym")})
-- 🔥 段大小统计 (对应 MDK Image component sizes)
os.execv("arm-none-eabi-size", {"-B", elf}, {stdout = path.join(bindir, name .. ".size")})
end)
on_clean(function (target)
os.rm("build")
os.rm("bin")
end)
target("lib")
set_kind("phony")
add_deps("lib-ebtn")
target("lib-ebtn")
set_kind("static")
add_includedirs("lib/ebtn", {public = true})
add_files("lib/ebtn/*.c")