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

[EXAMPLE:F0] Add simple miniblink example

Browse Source
This commit is contained in:
Frantisek Burian
2013-12-14 19:14:36 +01:00
committed by Piotr Esden-Tempski
parent 71bd938eeb
commit a8b3daeb57
3 changed files with 107 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
examples/stm32/f0/stm32f0-discovery/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 = ../stm32f0-discovery.ld
include ../../Makefile.include

9
examples/stm32/f0/stm32f0-discovery/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 STM32F0-DISCOVERY eval board. It should blink
the blue LED on the board.

73
examples/stm32/f0/stm32f0-discovery/miniblink/miniblink.c Normal file
View File

@@ -0,0 +1,73 @@
/*
* 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 PORT_LED GPIOC
#define PIN_LED GPIO8
static void gpio_setup(void)
{
/* Enable GPIOB clock. */
/* Manually: */
//RCC_AHBENR |= RCC_AHBENR_GPIOCEN;
/* Using API functions: */
rcc_periph_clock_enable(RCC_GPIOC);
/* Set GPIO6 (in GPIO port B) to 'output push-pull'. */
/* Using API functions: */
gpio_mode_setup(PORT_LED, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, PIN_LED);
}
int main(void)
{
int i;
gpio_setup();
/* Blink the LED (PC8) on the board. */
while (1) {
/* Manually: */
// GPIOC_BSRR = PIN_LED; /* LED off */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
// GPIOC_BRR = PIN_LED; /* LED on */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
/* Using API functions gpio_set()/gpio_clear(): */
// gpio_set(PORT_LED, PIN_LED); /* LED off */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
// gpio_clear(PORT_LED, PIN_LED); /* LED on */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
/* Using API function gpio_toggle(): */
gpio_toggle(PORT_LED, PIN_LED); /* LED on/off */
for (i = 0; i < 1000000; i++) /* Wait a bit. */
__asm__("nop");
}
return 0;
}