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-rw-r--r--os/hal/ports/NRF51/NRF51822/st_lld.c191
1 files changed, 185 insertions, 6 deletions
diff --git a/os/hal/ports/NRF51/NRF51822/st_lld.c b/os/hal/ports/NRF51/NRF51822/st_lld.c
index 526db35..f65117b 100644
--- a/os/hal/ports/NRF51/NRF51822/st_lld.c
+++ b/os/hal/ports/NRF51/NRF51822/st_lld.c
@@ -1,5 +1,6 @@
/*
ChibiOS - Copyright (C) 2015 Fabio Utzig
+ 2016 Stephane D'Alu
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@@ -51,9 +52,55 @@
/*===========================================================================*/
#if (OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC) || defined(__DOXYGEN__)
+#if NRF51_ST_USE_RTC0 == TRUE
/**
- * @brief System Timer vector.
- * @details This interrupt is used for system tick in periodic mode.
+ * @brief System Timer vector (RTC0)
+ * @details This interrupt is used for system tick in periodic mode
+ * if selected with NRF51_ST_USE_RTC0
+ *
+ * @isr
+ */
+OSAL_IRQ_HANDLER(Vector6C) {
+
+ OSAL_IRQ_PROLOGUE();
+
+ NRF_RTC0->EVENTS_TICK = 0;
+
+ osalSysLockFromISR();
+ osalOsTimerHandlerI();
+ osalSysUnlockFromISR();
+
+ OSAL_IRQ_EPILOGUE();
+}
+#endif
+
+#if NRF51_ST_USE_RTC1 == TRUE
+/**
+ * @brief System Timer vector (RTC1)
+ * @details This interrupt is used for system tick in periodic mode
+ * if selected with NRF51_ST_USE_RTC1
+ *
+ * @isr
+ */
+OSAL_IRQ_HANDLER(Vector84) {
+
+ OSAL_IRQ_PROLOGUE();
+
+ NRF_RTC1->EVENTS_TICK = 0;
+
+ osalSysLockFromISR();
+ osalOsTimerHandlerI();
+ osalSysUnlockFromISR();
+
+ OSAL_IRQ_EPILOGUE();
+}
+#endif
+
+#if NRF51_ST_USE_TIMER0 == TRUE
+/**
+ * @brief System Timer vector. (TIMER0)
+ * @details This interrupt is used for system tick in periodic mode
+ * if selected with NRF51_ST_USE_TIMER0
*
* @isr
*/
@@ -71,8 +118,73 @@ OSAL_IRQ_HANDLER(Vector60) {
OSAL_IRQ_EPILOGUE();
}
+#endif
#endif /* OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC */
+#if (OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING) || defined(__DOXYGEN__)
+#if NRF51_ST_USE_RTC0 == TRUE
+/**
+ * @brief System Timer vector (RTC0)
+ * @details This interrupt is used for freerunning mode (tick-less)
+ * if selected with NRF51_ST_USE_RTC0
+ *
+ * @isr
+ */
+OSAL_IRQ_HANDLER(Vector6C) {
+
+ OSAL_IRQ_PROLOGUE();
+
+ if (NRF_RTC0->EVENTS_COMPARE[0]) {
+ NRF_RTC0->EVENTS_COMPARE[0] = 0;
+
+ osalSysLockFromISR();
+ osalOsTimerHandlerI();
+ osalSysUnlockFromISR();
+ }
+
+#if OSAL_ST_RESOLUTION == 16
+ if (NRF_RTC0->EVENTS_COMPARE[1]) {
+ NRF_RTC0->EVENTS_COMPARE[1] = 0;
+ NRF_RTC0->TASKS_CLEAR = 1;
+ }
+#endif
+
+ OSAL_IRQ_EPILOGUE();
+}
+#endif
+
+#if NRF51_ST_USE_RTC1 == TRUE
+/**
+ * @brief System Timer vector (RTC1)
+ * @details This interrupt is used for freerunning mode (tick-less)
+ * if selected with NRF51_ST_USE_RTC1
+ *
+ * @isr
+ */
+OSAL_IRQ_HANDLER(Vector84) {
+
+ OSAL_IRQ_PROLOGUE();
+
+ if (NRF_RTC1->EVENTS_COMPARE[0]) {
+ NRF_RTC1->EVENTS_COMPARE[0] = 0;
+
+ osalSysLockFromISR();
+ osalOsTimerHandlerI();
+ osalSysUnlockFromISR();
+ }
+
+#if OSAL_ST_RESOLUTION == 16
+ if (NRF_RTC1->EVENTS_COMPARE[1]) {
+ NRF_RTC1->EVENTS_COMPARE[1] = 0;
+ NRF_RTC1->TASKS_CLEAR = 1;
+ }
+#endif
+
+ OSAL_IRQ_EPILOGUE();
+}
+#endif
+#endif /* OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING */
+
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
@@ -83,8 +195,75 @@ OSAL_IRQ_HANDLER(Vector60) {
* @notapi
*/
void st_lld_init(void) {
+#if OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING
+
+#if NRF51_ST_USE_RTC0 == TRUE
+ /* Using RTC with prescaler */
+ NRF_RTC0->TASKS_STOP = 1;
+ NRF_RTC0->PRESCALER = (NRF51_LFCLK_FREQUENCY / OSAL_ST_FREQUENCY) - 1;
+ NRF_RTC0->EVTENCLR = RTC_EVTENSET_COMPARE0_Msk;
+ NRF_RTC0->EVENTS_COMPARE[0] = 0;
+ NRF_RTC0->INTENSET = RTC_INTENSET_COMPARE0_Msk;
+#if OSAL_ST_RESOLUTION == 16
+ NRF_RTC0->CC[1] = 0x10000; /* 2^16 */
+ NRF_RTC0->EVENTS_COMPARE[1] = 0;
+ NRF_RTC0->EVTENSET = RTC_EVTENSET_COMPARE0_Msk;
+ NRF_RTC0->INTENSET = RTC_INTENSET_COMPARE1_Msk;
+#endif
+ NRF_RTC0->TASKS_CLEAR = 1;
+
+ /* Start timer */
+ nvicEnableVector(RTC0_IRQn, NRF51_ST_PRIORITY);
+ NRF_RTC0->TASKS_START = 1;
+#endif /* NRF51_ST_USE_RTC0 == TRUE */
+
+#if NRF51_ST_USE_RTC1 == TRUE
+ /* Using RTC with prescaler */
+ NRF_RTC1->TASKS_STOP = 1;
+ NRF_RTC1->PRESCALER = (NRF51_LFCLK_FREQUENCY / OSAL_ST_FREQUENCY) - 1;
+ NRF_RTC1->EVTENCLR = RTC_EVTENSET_COMPARE0_Msk;
+ NRF_RTC1->EVENTS_COMPARE[0] = 0;
+ NRF_RTC1->INTENSET = RTC_INTENSET_COMPARE0_Msk;
+#if OSAL_ST_RESOLUTION == 16
+ NRF_RTC1->CC[1] = 0x10000; /* 2^16 */
+ NRF_RTC1->EVENTS_COMPARE[1] = 0;
+ NRF_RTC1->EVTENSET = RTC_EVTENSET_COMPARE0_Msk;
+ NRF_RTC1->INTENSET = RTC_INTENSET_COMPARE1_Msk;
+#endif
+ NRF_RTC1->TASKS_CLEAR = 1;
+
+ /* Start timer */
+ nvicEnableVector(RTC1_IRQn, NRF51_ST_PRIORITY);
+ NRF_RTC1->TASKS_START = 1;
+#endif /* NRF51_ST_USE_RTC1 == TRUE */
+
+#endif /* OSAL_ST_MODE == OSAL_ST_MODE_FREERUNNING */
#if OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC
+
+#if NRF51_ST_USE_RTC0 == TRUE
+ /* Using RTC with prescaler */
+ NRF_RTC0->TASKS_STOP = 1;
+ NRF_RTC0->PRESCALER = (NRF51_LFCLK_FREQUENCY / OSAL_ST_FREQUENCY) - 1;
+ NRF_RTC0->INTENSET = RTC_INTENSET_TICK_Msk;
+
+ /* Start timer */
+ nvicEnableVector(RTC0_IRQn, NRF51_ST_PRIORITY);
+ NRF_RTC0->TASKS_START = 1;
+#endif /* NRF51_ST_USE_RTC0 == TRUE */
+
+#if NRF51_ST_USE_RTC1 == TRUE
+ /* Using RTC with prescaler */
+ NRF_RTC1->TASKS_STOP = 1;
+ NRF_RTC1->PRESCALER = (NRF51_LFCLK_FREQUENCY / OSAL_ST_FREQUENCY) - 1;
+ NRF_RTC1->INTENSET = RTC_INTENSET_TICK_Msk;
+
+ /* Start timer */
+ nvicEnableVector(RTC1_IRQn, NRF51_ST_PRIORITY);
+ NRF_RTC1->TASKS_START = 1;
+#endif /* NRF51_ST_USE_RTC1 == TRUE */
+
+#if NRF51_ST_USE_TIMER0 == TRUE
NRF_TIMER0->TASKS_CLEAR = 1;
/*
@@ -102,12 +281,12 @@ void st_lld_init(void) {
NRF_TIMER0->SHORTS = 1;
NRF_TIMER0->INTENSET = 0x10000;
- nvicEnableVector(TIMER0_IRQn, 8);
-
/* Start timer */
+ nvicEnableVector(TIMER0_IRQn, NRF51_ST_PRIORITY);
NRF_TIMER0->TASKS_START = 1;
-#endif
-
+#endif /* NRF51_ST_USE_TIMER0 == TRUE */
+
+#endif /* OSAL_ST_MODE == OSAL_ST_MODE_PERIODIC */
}
#endif /* OSAL_ST_MODE != OSAL_ST_MODE_NONE */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 05:19:15 +0000