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

[Stylecheck] F0, F1, F4

Browse Source 
There are remaining C99 comments.
This commit is contained in:
Frantisek Burian
2014-01-23 19:06:13 +01:00
parent 022cc475bf
commit 3f47411e24
22 changed files with 203 additions and 159 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
examples/stm32/l1/stm32l-discovery/button-irq-printf-lowpower/main.c
View File

@@ -38,7 +38,7 @@ static volatile struct state_t state;
int _write(int file, char *ptr, int len);
__attribute__((always_inline)) static inline void __WFI(void)
static inline __attribute__((always_inline)) void __WFI(void)
{
__asm volatile ("wfi");
}
@@ -46,8 +46,11 @@ __attribute__((always_inline)) static inline void __WFI(void)
static void gpio_setup(void)
{
/* green led for ticking, blue for button feedback */
gpio_mode_setup(LED_DISCO_GREEN_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_DISCO_GREEN_PIN);
gpio_mode_setup(LED_DISCO_BLUE_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, LED_DISCO_BLUE_PIN);
gpio_mode_setup(LED_DISCO_GREEN_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
LED_DISCO_GREEN_PIN);
gpio_mode_setup(LED_DISCO_BLUE_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE,
LED_DISCO_BLUE_PIN);
/* Setup GPIO pins for USART2 transmit. */
gpio_mode_setup(GPIOA, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO2);
@@ -76,7 +79,8 @@ static void setup_buttons(void)
/* Enable EXTI0 interrupt. */
nvic_enable_irq(BUTTON_DISCO_USER_NVIC);
gpio_mode_setup(BUTTON_DISCO_USER_PORT, GPIO_MODE_INPUT, GPIO_PUPD_NONE, BUTTON_DISCO_USER_PIN);
gpio_mode_setup(BUTTON_DISCO_USER_PORT, GPIO_MODE_INPUT, GPIO_PUPD_NONE,
BUTTON_DISCO_USER_PIN);
/* Configure the EXTI subsystem. */
exti_select_source(BUTTON_DISCO_USER_EXTI, BUTTON_DISCO_USER_PORT);
@@ -128,7 +132,7 @@ int _write(int file, char *ptr, int len)
static void setup_button_press_timer(void)
{
timer_reset(TIMER_BUTTON_PRESS);
timer_set_prescaler(TIMER_BUTTON_PRESS, 3999); // 4Mhz/1000hz - 1
timer_set_prescaler(TIMER_BUTTON_PRESS, 3999); /* 4Mhz/1000hz - 1 */
timer_set_period(TIMER_BUTTON_PRESS, 0xffff);
timer_enable_counter(TIMER_BUTTON_PRESS);
}
@@ -151,15 +155,15 @@ static int setup_rtc(void)
rcc_rtc_select_clock(RCC_CSR_RTCSEL_LSE);
/* ?! Stdperiph examples don't turn this on until _afterwards_ which
* simply doesn't work. It must be on at least to be able to configure it */
* simply doesn't work. It must be on at least to be able to
* configure it */
RCC_CSR |= RCC_CSR_RTCEN;
rtc_unlock();
/* enter init mode */
RTC_ISR |= RTC_ISR_INIT;
while ((RTC_ISR & RTC_ISR_INITF) == 0)
;
while ((RTC_ISR & RTC_ISR_INITF) == 0);
/* set synch prescaler, using defaults for 1Hz out */
uint32_t sync = 255;
@@ -190,8 +194,7 @@ static int setup_rtc_wakeup(int period)
RTC_CR &= ~RTC_CR_WUTE;
/* Wait until we can write */
while ((RTC_ISR & RTC_ISR_WUTWF) == 0)
;
while ((RTC_ISR & RTC_ISR_WUTWF) == 0);
RTC_WUTR = period - 1;
@@ -210,12 +213,13 @@ static int setup_rtc_wakeup(int period)
/* done with rtc registers, lock them again */
rtc_lock();
nvic_enable_irq(NVIC_RTC_WKUP_IRQ);
// EXTI configuration
/* EXTI configuration */
/* Configure the EXTI subsystem. */
// not needed, this chooses ports exti_select_source(EXTI20, BUTTON_DISCO_USER_PORT);
/* not needed, this chooses ports
exti_select_source(EXTI20, BUTTON_DISCO_USER_PORT);
*/
exti_set_trigger(EXTI20, EXTI_TRIGGER_RISING);
exti_enable_request(EXTI20);
return 0;