FeatherHAB/wsprhab Changeset - ddbcfaffc98a

Changeset - ddbcfaffc98a

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Ethan Zonca - 9 years ago 2016-10-19 17:29:22
ez@ethanzonca.com

Hopefully set up the RTC and prepare for entering sleep mode for one minute at a time

4 files changed with 58 insertions and 12 deletions:

inc/rtc.h

src/interrupts.c

src/main.c

src/rtc.c

0 comments (0 inline, 0 general)

inc/rtc.h

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 #ifndef __rtc_H
 #define __rtc_H
 #include "stm32f0xx_hal.h"
 void rtc_init(void);
 RTC_HandleTypeDef* rtc_gethandle(void);
 #endif /*__ rtc_H */

src/interrupts.c

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@@ @@ -6,6 +6,7 @@ @@
 #include "stm32f0xx.h"
 #include "interrupts.h"
 #include "uart.h"
 #include "rtc.h"
 #include "gpio.h"
 extern TIM_HandleTypeDef htim1;
@@ @@ -33,3 +34,14 @@ void TIM1_BRK_UP_TRG_COM_IRQHandler(void @@
     proceed = 1;
     HAL_TIM_IRQHandler(&htim1);
+}
 void RTC_IRQHandler(void)
+{
   HAL_RTC_AlarmIRQHandler(rtc_gethandle());
+}
 void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
+{
 	// Do something awesome or not
+}

src/main.c

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@@ @@ -17,6 +17,13 @@ @@
 // Probabl wake up 1 minute early -- 0.45min possible +/- on wakeup time with 15min sync intervals
 // TODO: Add JT9 message with more grid locator digits + altitude + vbatt + temp
 // MSG13charmax:
 // 	X: gridloc
 //  Y: altitude
 //  Z: temperature
 //  KD8TDF XXYYZZ // could use alt callsign thing
 enum _state
+{
     SYSTEM_IDLE = 0, // awaiting RTC interrupt for wakeup TODO wake up before scheduled time to get fix?
@@ @@ -98,17 +105,22 @@ int main(void) @@
             case SYSTEM_IDLE:
+            {
                 blink_rate = BLINK_SLOW;
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 // Actually sleep for real: disable systick and sleep until RTC interrupt
                 HAL_SuspendTick();
                 // Enter sleep mode: wait for interrupt
                 HAL_PWR_EnterSLEEPMode(0, PWR_SLEEPENTRY_WFI);
                 // Wait for RTC wakeup interrupt
                 //wfi();
                 //enter_sleep();
                 // We have woken up!
                 // This is hopefully the only timer that needs to stay alive in idle mode
                 last_wspr_tx_time += 0; // move this timer forward based on sleep length
                 // Somehow go to another state when we get an interrupt
 //                state = SYSTEM_GPSACQ;
                 HAL_ResumeTick();
                 // TODO: Eventually use GPS time to calibrate the RTC maybe
             } break;

src/rtc.c

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@@ @@ -16,7 +16,7 @@ static void Error_Handler(void) @@
 // Initialize RTC
 void rtc_init(void)
+{
-        __HAL_RCC_RTC_ENABLE();
+	__HAL_RCC_RTC_ENABLE();
   RTC_TimeTypeDef sTime;
@@ @@ -25,11 +25,12 @@ void rtc_init(void) @@
   hrtc.Instance = RTC;
   hrtc.Init.HourFormat = RTC_HOURFORMAT_24;
   hrtc.Init.AsynchPrediv = 127;
   hrtc.Init.SynchPrediv = 255;
   hrtc.Init.AsynchPrediv = 124;
   hrtc.Init.SynchPrediv = 322; // if this has enough bits should be 1.0018Hz based on 40kHz LSI
   hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;
   hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;
   hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;
   if (HAL_RTC_Init(&hrtc) != HAL_OK)
+  {
     Error_Handler();
@@ @@ -55,6 +56,7 @@ void rtc_init(void) @@
     Error_Handler();
+  }
     /**Enable the Alarm A
     */
   sAlarm.AlarmTime.Hours = 0x0;
@@ @@ -63,7 +65,9 @@ void rtc_init(void) @@
   sAlarm.AlarmTime.SubSeconds = 0x0;
   sAlarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
   sAlarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_RESET;
   sAlarm.AlarmMask = RTC_ALARMMASK_NONE;
   // Alarm will trigger on the Xth second of every minute
   sAlarm.AlarmMask = RTC_ALARMMASK_DATEWEEKDAY | RTC_ALARMMASK_HOURS | RTC_ALARMMASK_MINUTES;
   sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_ALL;
   sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;
   sAlarm.AlarmDateWeekDay = 0x1;
@@ @@ -73,4 +77,18 @@ void rtc_init(void) @@
     Error_Handler();
+  }
   HAL_NVIC_SetPriority(RTC_IRQn, 0, 0);
   HAL_NVIC_EnableIRQ(RTC_IRQn);
+}
 void rtc_cal(void)
+{
 	// Do something with hrtc.Instance->CALR; // this has a plus and minus component, see refman
+}
 RTC_HandleTypeDef* rtc_gethandle(void)
+{
 	return &hrtc;
+}

0 comments (0 inline, 0 general)