ChibiOS 2.6.8, until I can figure out where to get it from git.

2026-09-13 01:59:29 +00:00 · 2015-07-08 08:40:23 -07:00
parent dc6fee8370
commit e1eea8e08a
1929 changed files with 575326 additions and 0 deletions
@@ -0,0 +1,141 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+#include "chrtclib.h"
+
+/*
+ * Set this flag to TRUE for testing waking up from deep sleep
+ */
+#define TEST_ALARM_WAKEUP     FALSE
+
+/*
+ * Local working variables
+ */
+static RTCTime timespec;
+static RTCAlarm alarmspec;
+
+#if TEST_ALARM_WAKEUP
+
+/*
+ * awake indication thread
+ */
+static WORKING_AREA(blinkWA, 128);
+static msg_t blink_thd(void *arg){
+  (void)arg;
+  while (TRUE) {
+    chThdSleepMilliseconds(100);
+    palTogglePad(GPIOC, GPIOC_LED);
+  }
+  return 0;
+}
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+  halInit();
+  chSysInit();
+
+  /* start awake indicator thread */
+  chThdCreateStatic(blinkWA, sizeof(blinkWA), NORMALPRIO, blink_thd, NULL);
+
+  /* set alarm in near future */
+  rtcGetTime(&RTCD1, &timespec);
+  alarmspec.tv_sec = timespec.tv_sec + 30;
+  rtcSetAlarm(&RTCD1, 0, &alarmspec);
+
+  while (TRUE) {
+    chThdSleepSeconds(10);
+    chSysLock();
+
+    /* go sleep */
+    PWR->CR |= (PWR_CR_PDDS | PWR_CR_LPDS | PWR_CR_CSBF | PWR_CR_CWUF);
+    SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
+    __WFI();
+  }
+  return 0;
+}
+
+#else /* TEST_ALARM_WAKEUP */
+
+/*
+ * Manually reloaded test alarm period.
+ */
+#define RTC_ALARMPERIOD   5
+
+/*
+ * Semaphore for signaling from ISR to "main" thread
+ */
+static BinarySemaphore alarm_sem;
+
+/*
+ * Global RTC callback function
+ */
+static void rtc_cb(RTCDriver *rtcp, rtcevent_t event) {
+
+  (void)rtcp;
+
+  switch (event) {
+  case RTC_EVENT_OVERFLOW:
+    palTogglePad(GPIOC, GPIOC_LED);
+    break;
+  case RTC_EVENT_SECOND:
+    /* palTogglePad(GPIOC, GPIOC_LED); */
+    break;
+  case RTC_EVENT_ALARM:
+    palTogglePad(GPIOC, GPIOC_LED);
+    chSysLockFromIsr();
+    chBSemSignalI(&alarm_sem);
+    chSysUnlockFromIsr();
+    break;
+  }
+}
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+  msg_t status = RDY_TIMEOUT;
+
+  halInit();
+  chSysInit();
+  chBSemInit(&alarm_sem, TRUE);
+
+  rtcGetTime(&RTCD1, &timespec);
+  alarmspec.tv_sec = timespec.tv_sec + RTC_ALARMPERIOD;
+  rtcSetAlarm(&RTCD1, 0, &alarmspec);
+
+  rtcSetCallback(&RTCD1, rtc_cb);
+  while (TRUE) {
+
+    /* Wait until alarm callback signaled semaphore.*/
+    status = chBSemWaitTimeout(&alarm_sem, S2ST(RTC_ALARMPERIOD + 10));
+
+    if (status == RDY_TIMEOUT) {
+      chSysHalt();
+    }
+    else {
+      rtcGetTime(&RTCD1, &timespec);
+      alarmspec.tv_sec = timespec.tv_sec + RTC_ALARMPERIOD;
+      rtcSetAlarm(&RTCD1, 0, &alarmspec);
+    }
+  }
+  return 0;
+}
+#endif /* TEST_ALARM_WAKEUP */