[stm32f7] Add initial support of the family, GPIO support.
Most changes are noise from doxygen. Readme udpated to explain newer FP_FLAGS for m7 stm32f7 library is skipped if the toolchain doesn't support it yet.
This commit is contained in:
Frantisek Burian
committed by
Karl Palsson
Karl Palsson
parent
2e25d678ba
commit
3ef2c38120
@@ -2,6 +2,8 @@
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# include "../stm32/f3/vector_chipset.c"
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#elif defined(STM32F4)
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# include "../stm32/f4/vector_chipset.c"
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#elif defined(STM32F7)
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# include "../stm32/f7/vector_chipset.c"
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#elif defined(LPC43XX_M4)
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# include "../lpc43xx/m4/vector_chipset.c"
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#elif defined(VF6XX)
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@@ -8,6 +8,8 @@
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# include "../stm32/f3/vector_nvic.c"
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#elif defined(STM32F4)
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# include "../stm32/f4/vector_nvic.c"
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#elif defined(STM32F7)
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# include "../stm32/f7/vector_nvic.c"
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#elif defined(STM32L0)
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# include "../stm32/l0/vector_nvic.c"
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#elif defined(STM32L1)
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70
lib/stm32/f7/Makefile
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70
lib/stm32/f7/Makefile
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@@ -0,0 +1,70 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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## Copyright (C) 2013 Alexandru Gagniuc <mr.nuke.me@gmail.com>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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LIBNAME = libopencm3_stm32f7
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SRCLIBDIR ?= ../..
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PREFIX ?= arm-none-eabi
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CC = $(PREFIX)-gcc
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AR = $(PREFIX)-ar
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# By default, use double precision FPU
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FP_FLAGS ?= -mfloat-abi=hard -mfpu=fpv5-d16
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CFLAGS = -Os -g \
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-Wall -Wextra -Wimplicit-function-declaration \
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-Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes \
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-Wundef -Wshadow \
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-I../../../include -fno-common \
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-mcpu=cortex-m7 -mthumb $(FP_FLAGS) \
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-Wstrict-prototypes \
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-ffunction-sections -fdata-sections -MD -DSTM32F7
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ARFLAGS = rcs
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OBJS = gpio.o gpio_common_all.o gpio_common_f0234.o
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VPATH += ../../usb:../:../../cm3:../common
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VPATH += ../../ethernet
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###############################################################################
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# Checking CPU support in the toolchain
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###############################################################################
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# TODO: This check and silent skip of build should be removed, when it will be
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# sure that first compatible toolchain (g-a-e 4.8 2014q3) will be sufficiently
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# penetrated in majority of user stations.
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define MISSING_CPU
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Your toolchain doesn't support -mcpu=cortex-m7.
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Please use gcc-arm-embedded 4.8 2014q3 or newer. Skipping this sub-library.
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endef
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ifneq ($(shell $(CC) -fsyntax-only -mcpu=cortex-m7 -mthumb -xc /dev/null 2>&1; echo $$?),0)
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$(warning $(MISSING_CPU))
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all clean:
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@true
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$(SRCLIBDIR)/$(LIBNAME).a:
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@true
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else
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include ../../Makefile.include
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endif
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31
lib/stm32/f7/gpio.c
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31
lib/stm32/f7/gpio.c
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@@ -0,0 +1,31 @@
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/** @defgroup gpio_file GPIO
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@ingroup STM32F7xx
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@brief <b>libopencm3 STM32F7xx General Purpose I/O</b>
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@version 1.0.0
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@date 18 August 2012
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LGPL License Terms @ref lgpl_license
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*/
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/*
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* This file is part of the libopencm3 project.
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/stm32/gpio.h>
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106
lib/stm32/f7/libopencm3_stm32f7.ld
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106
lib/stm32/f7/libopencm3_stm32f7.ld
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@@ -0,0 +1,106 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* Generic linker script for STM32 targets using libopencm3. */
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/* Memory regions must be defined in the ld script which includes this one. */
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/* Enforce emmition of the vector table. */
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EXTERN (vector_table)
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/* Define the entry point of the output file. */
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ENTRY(reset_handler)
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/* Define sections. */
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SECTIONS
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{
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.text : {
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*(.vectors) /* Vector table */
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*(.text*) /* Program code */
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. = ALIGN(4);
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*(.rodata*) /* Read-only data */
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. = ALIGN(4);
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} >rom
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/* C++ Static constructors/destructors, also used for __attribute__
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* ((constructor)) and the likes */
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.preinit_array : {
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. = ALIGN(4);
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__preinit_array_start = .;
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KEEP (*(.preinit_array))
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__preinit_array_end = .;
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} >rom
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.init_array : {
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. = ALIGN(4);
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__init_array_start = .;
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array))
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__init_array_end = .;
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} >rom
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.fini_array : {
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. = ALIGN(4);
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__fini_array_start = .;
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KEEP (*(.fini_array))
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KEEP (*(SORT(.fini_array.*)))
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__fini_array_end = .;
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} >rom
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/*
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* Another section used by C++ stuff, appears when using newlib with
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* 64bit (long long) printf support
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*/
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.ARM.extab : {
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*(.ARM.extab*)
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} >rom
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.ARM.exidx : {
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__exidx_start = .;
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*(.ARM.exidx*)
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__exidx_end = .;
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} >rom
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. = ALIGN(4);
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_etext = .;
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.data : {
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_data = .;
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*(.data*) /* Read-write initialized data */
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. = ALIGN(4);
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_edata = .;
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} >ram AT >rom
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_data_loadaddr = LOADADDR(.data);
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.bss : {
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*(.bss*) /* Read-write zero initialized data */
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*(COMMON)
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. = ALIGN(4);
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_ebss = .;
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} >ram
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/*
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* The .eh_frame section appears to be used for C++ exception handling.
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* You may need to fix this if you're using C++.
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*/
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/DISCARD/ : { *(.eh_frame) }
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. = ALIGN(4);
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end = .;
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}
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PROVIDE(_stack = ORIGIN(ram) + LENGTH(ram));
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27
lib/stm32/f7/vector_chipset.c
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27
lib/stm32/f7/vector_chipset.c
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@@ -0,0 +1,27 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
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* Copyright (C) 2011 Fergus Noble <fergusnoble@gmail.com>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/cm3/scb.h>
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static void pre_main(void)
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{
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/* Enable access to Floating-Point coprocessor. */
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SCB_CPACR |= SCB_CPACR_FULL * (SCB_CPACR_CP10 | SCB_CPACR_CP11);
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}
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