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Update STM32 examples

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This commit is contained in:
Valeriy Koval
2015-02-16 15:34:45 +02:00
parent 00e95dbabc
commit 2b924d1573
3 changed files with 72 additions and 68 deletions
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46
examples/stm32/stm32-opencm3-blink/src/main.c
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@@ -21,46 +21,38 @@
#include <libopencm3/stm32/rcc.h>
#include <libopencm3/stm32/gpio.h>
#ifdef STM32L1
#define RCCLEDPORT (RCC_GPIOB)
#define LEDPORT (GPIOB)
#define LEDPIN (GPIO6)
#elif STM32F3
#define RCCLEDPORT (RCC_GPIOE)
#define LEDPORT (GPIOE)
#define LEDPIN (GPIO8)
#elif STM32F4
#define RCCLEDPORT (RCC_GPIOD)
#define LEDPORT (GPIOD)
#define LEDPIN (GPIO12)
#endif
static void gpio_setup(void)
{
/* Enable GPIOB clock. */
/* Manually: */
//RCC_AHBENR |= RCC_AHBENR_GPIOBEN;
/* Enable GPIO clock. */
/* Using API functions: */
rcc_periph_clock_enable(RCC_GPIOB);
/* Set GPIO6 (in GPIO port B) to 'output push-pull'. */
rcc_periph_clock_enable(RCCLEDPORT);
/* Set pin to 'output push-pull'. */
/* Using API functions: */
gpio_mode_setup(GPIOB, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO6);
gpio_mode_setup(LEDPORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LEDPIN);
}
int main(void)
{
int i;
gpio_setup();
/* Blink the LED (PB6) on the board. */
/* Blink the LED on the board. */
while (1) {
/* Manually: */
// GPIOB_BSRR = GPIO6; /* LED off */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
// GPIOB_BRR = GPIO6; /* LED on */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
/* Using API functions gpio_set()/gpio_clear(): */
// gpio_set(GPIOB, GPIO6); /* LED off */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
// gpio_clear(GPIOB, GPIO6); /* LED on */
// for (i = 0; i < 1000000; i++) /* Wait a bit. */
// __asm__("nop");
/* Using API function gpio_toggle(): */
gpio_toggle(GPIOB, GPIO6); /* LED on/off */
gpio_toggle(LEDPORT, LEDPIN); /* LED on/off */
for (i = 0; i < 1000000; i++) { /* Wait a bit. */
__asm__("nop");
}