EMTime/libopencm3-examples
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

stm32:l0: miniblink example

Browse Source 
Very basic, as all miniblinks.
This commit is contained in:
Karl Palsson
2014-11-17 22:52:30 +00:00
committed by Karl Palsson
parent 312540a0e5
commit 1b2f9db18f
5 changed files with 139 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Makefile
View File

@@ -20,7 +20,7 @@
PREFIX ?= arm-none-eabi
#PREFIX ?= arm-elf
TARGETS := stm32/f0 stm32/f1 stm32/f2 stm32/f3 stm32/f4 stm32/l1
TARGETS := stm32/f0 stm32/f1 stm32/f2 stm32/f3 stm32/f4 stm32/l0 stm32/l1
TARGETS += lpc13xx lpc17xx #lpc43xx
TARGETS += lm3s lm4f
TARGETS += efm32/efm32tg efm32/efm32g efm32/efm32lg efm32/efm32gg

44
examples/stm32/l0/Makefile.include Normal file
View File

@@ -0,0 +1,44 @@
##
## This file is part of the libopencm3 project.
##
## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
##
## This library is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## This library is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with this library. If not, see <http://www.gnu.org/licenses/>.
##
LIBNAME = opencm3_stm32l0
DEFS = -DSTM32L0
FP_FLAGS ?= -msoft-float
ARCH_FLAGS = -mthumb -mcpu=cortex-m0plus $(FP_FLAGS)
################################################################################
# OpenOCD specific variables
OOCD ?= openocd
OOCD_INTERFACE ?= stlink-v2-1
OOCD_BOARD ?= stm32l0discovery
################################################################################
# Black Magic Probe specific variables
# Set the BMP_PORT to a serial port and then BMP is used for flashing
BMP_PORT ?=
################################################################################
# texane/stlink specific variables
#STLINK_PORT ?= :4242
include ../../../../Makefile.rules

25
examples/stm32/l0/stm32l0538-disco/miniblink/Makefile Normal file
View File

@@ -0,0 +1,25 @@
##
## This file is part of the libopencm3 project.
##
## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
##
## This library is free software: you can redistribute it and/or modify
## it under the terms of the GNU Lesser General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## This library is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU Lesser General Public License for more details.
##
## You should have received a copy of the GNU Lesser General Public License
## along with this library. If not, see <http://www.gnu.org/licenses/>.
##
BINARY = miniblink
LDSCRIPT = $(OPENCM3_DIR)/lib/stm32/l0/stm32l0xx8.ld
include ../../Makefile.include

9
examples/stm32/l0/stm32l0538-disco/miniblink/README Normal file
View File

@@ -0,0 +1,9 @@
------------------------------------------------------------------------------
README
------------------------------------------------------------------------------
This is the smallest-possible example program using libopencm3.
It's intended for the ST STM32L053-DISCOVERY eval board. It should blink
the red/green LEDs on the board in turn.

60
examples/stm32/l0/stm32l0538-disco/miniblink/miniblink.c Normal file
View File

@@ -0,0 +1,60 @@
/*
* This file is part of the libopencm3 project.
*
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
* Copyright (C) 2011 Stephen Caudle <scaudle@doceme.com>
* Copyright (C) 2012 Karl Palsson <karlp@tweak.net.au>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/gpio.h>
#define LED_GREEN_PIN GPIO4
#define LED_GREEN_PORT GPIOB
#define LED_RED_PIN GPIO5
#define LED_RED_PORT GPIOA
static void gpio_setup(void)
{
/* Enable GPIOB clock. */
rcc_periph_clock_enable(RCC_GPIOA);
rcc_periph_clock_enable(RCC_GPIOB);
/* set pins to output mode, push pull */
gpio_mode_setup(LED_RED_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_RED_PIN);
gpio_mode_setup(LED_GREEN_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_GREEN_PIN);
}
int main(void)
{
int i;
gpio_setup();
while (1) {
/* toggle each led in turn */
gpio_toggle(LED_GREEN_PORT, LED_GREEN_PIN);
for (i = 0; i < 100000; i++) { /* Wait a bit. */
__asm__("nop");
}
gpio_toggle(LED_RED_PORT, LED_RED_PIN);
for (i = 0; i < 100000; i++) { /* Wait a bit. */
__asm__("nop");
}
}
return 0;
}