X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fstmf0%2Fao_timer.c;h=5b180074c07d8ddf7b850bf7e527a25a5e62ed31;hb=59cbf80e63b4c88de45e59c6e3d209f99910fcf3;hp=1def5f69f8e1c1d77d7a6a9d7344e4adcc1001fc;hpb=c6e57291d91f1f6c4de5c54a5cfd3eef66d9f830;p=fw%2Faltos

diff --git a/src/stmf0/ao_timer.c b/src/stmf0/ao_timer.c
index 1def5f69..5b180074 100644
--- a/src/stmf0/ao_timer.c
+++ b/src/stmf0/ao_timer.c
@@ -35,6 +35,22 @@ ao_time(void)
 	return ao_tick_count;
 }
 
+uint64_t
+ao_time_ns(void)
+{
+	AO_TICK_TYPE	before, after;
+	uint32_t	cvr;
+
+	do {
+		before = ao_tick_count;
+		cvr = stm_systick.cvr;
+		after = ao_tick_count;
+	} while (before != after);
+
+	return (uint64_t) after * (1000000000ULL / AO_HERTZ) +
+		(uint64_t) cvr * (1000000000ULL / AO_SYSTICK);
+}
+
 #if AO_DATA_ALL
 volatile uint8_t	ao_data_interval = 1;
 volatile uint8_t	ao_data_count;
@@ -44,12 +60,9 @@ void stm_systick_isr(void)
 {
 	if (stm_systick.csr & (1 << STM_SYSTICK_CSR_COUNTFLAG)) {
 		++ao_tick_count;
-#if HAS_TASK_QUEUE
-		if (ao_task_alarm_tick && (int16_t) (ao_tick_count - ao_task_alarm_tick) >= 0)
-			ao_task_check_alarm((uint16_t) ao_tick_count);
-#endif
+		ao_task_check_alarm();
 #if AO_DATA_ALL
-		if (++ao_data_count == ao_data_interval) {
+		if (++ao_data_count == ao_data_interval && ao_data_interval) {
 			ao_data_count = 0;
 #if HAS_ADC
 #if HAS_FAKE_FLIGHT
@@ -278,9 +291,6 @@ ao_clock_init(void)
 	/* Enable 1 wait state so the CPU can run at 48MHz */
 	stm_flash.acr |= (STM_FLASH_ACR_LATENCY_1 << STM_FLASH_ACR_LATENCY);
 
-	/* Enable power interface clock */
-	stm_rcc.apb1enr |= (1 << STM_RCC_APB1ENR_PWREN);
-
 	/* HCLK to 48MHz -> AHB prescaler = /1 */
 	cfgr = stm_rcc.cfgr;
 	cfgr &= ~(STM_RCC_CFGR_HPRE_MASK << STM_RCC_CFGR_HPRE);