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Remove LF clock initialization from os_init_clock. 

The LF clock initialization is already handled by the SystemInit function.
This code was causing troubles when run on targets with an alternate LF
clock.
pull/2213/head
Vincent Coubard 2016-07-21 19:36:58 +01:00
parent db60d6a7f7
commit 07d7165f98
1 changed files with 1 additions and 10 deletions
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11
hal/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/us_ticker.c
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@ -515,16 +515,7 @@ static void register_next_tick() {
*/ */
int os_tick_init (void) int os_tick_init (void)
{ {
NRF_CLOCK->LFCLKSRC = (CLOCK_LFCLKSRC_SRC_Xtal << CLOCK_LFCLKSRC_SRC_Pos); // their is no need to start the LF clock, it is already started by SystemInit.
NRF_CLOCK->EVENTS_LFCLKSTARTED = 0;
NRF_CLOCK->TASKS_LFCLKSTART = 1;
while (NRF_CLOCK->EVENTS_LFCLKSTARTED == 0) {
// wait for the low frequency clock start
}
NRF_RTC1->PRESCALER = 0; /* for no pre-scaling. */
NVIC_SetPriority(RTC1_IRQn, RTC1_IRQ_PRI); NVIC_SetPriority(RTC1_IRQn, RTC1_IRQ_PRI);
NVIC_ClearPendingIRQ(RTC1_IRQn); NVIC_ClearPendingIRQ(RTC1_IRQn);
NVIC_EnableIRQ(RTC1_IRQn); NVIC_EnableIRQ(RTC1_IRQn);