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application: allow multiple ticks per seconds for periodic tasks

This commit is contained in:
King Kévin 2020-02-02 21:19:03 +01:00
parent 31997c2c4a
commit f54d3f0fd2
1 changed files with 17 additions and 4 deletions
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21
application.c
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@ -48,11 +48,22 @@
#include "terminal.h" // handle the terminal interface
#include "menu.h" // menu utilities
#define WATCHDOG_PERIOD 10000 /**< watchdog period in ms */
/** watchdog period in ms */
#define WATCHDOG_PERIOD 10000
/** set to 0 if the RTC is reset when the board is powered on, only indicates the uptime
* set to 1 if VBAT can keep the RTC running when the board is unpowered, indicating the date and time
*/
#if defined(CORE_BOARD)
#define RTC_DATE_TIME 1
#else
#define RTC_DATE_TIME 0
#endif
/** number of RTC ticks per second
* @note use integer divider of oscillator to keep second precision
*/
#define RTC_TICKS_SECOND 4
/** RTC time when device is started */
static time_t time_start = 0;
@ -374,9 +385,9 @@ void main(void)
printf("setup internal RTC: ");
#if defined(BLUE_PILL) || defined(STLINKV2) || defined(BLASTER) // for boards without a Low Speed External oscillator
// note: the blue pill LSE oscillator is affected when toggling the onboard LED, thus prefer the HSE
rtc_auto_awake(RCC_HSE, 8000000 / 128 - 1); // use High Speed External oscillator (8 MHz / 128) as RTC clock (VBAT can't be used to keep the RTC running)
rtc_auto_awake(RCC_HSE, 8000000 / 128 / RTC_TICKS_SECOND - 1); // use High Speed External oscillator (8 MHz / 128) as RTC clock (VBAT can't be used to keep the RTC running)
#else // for boards with an precise Low Speed External oscillator
rtc_auto_awake(RCC_LSE, 32768 - 1); // ensure internal RTC is on, uses the 32.678 kHz LSE, and the prescale is set to our tick speed, else update backup registers accordingly (power off the micro-controller for the change to take effect)
rtc_auto_awake(RCC_LSE, 32768 / RTC_TICKS_SECOND - 1); // ensure internal RTC is on, uses the 32.678 kHz LSE, and the prescale is set to our tick speed, else update backup registers accordingly (power off the micro-controller for the change to take effect)
#endif
rtc_interrupt_enable(RTC_SEC); // enable RTC interrupt on "seconds"
nvic_enable_irq(NVIC_RTC_IRQ); // allow the RTC to interrupt
@ -411,7 +422,9 @@ void main(void)
if (rtc_internal_tick_flag) { // the internal RTC ticked
rtc_internal_tick_flag = false; // reset flag
action = true; // action has been performed
led_toggle(); // toggle LED (good to indicate if main function is stuck)
if (0 == (rtc_get_counter_val() % RTC_TICKS_SECOND)) { // one seond has passed
led_toggle(); // toggle LED (good to indicate if main function is stuck)
}
}
if (action) { // go to sleep if nothing had to be done, else recheck for activity
action = false;