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correct clock speed

This commit is contained in:
Stephane D'Alu 2016-07-10 10:47:45 +02:00
parent 1908537785
commit ba393d3ae1
1 changed files with 5 additions and 10 deletions
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15
os/hal/ports/NRF5/NRF52832/hal_lld.c
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@ -1,5 +1,5 @@
/*
Copyright (C) 2015 Fabio Utzig
Copyright (C) 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.
@ -56,15 +56,10 @@
void hal_lld_init(void)
{
/* High frequency clock initialisation
* (If NRF51_XTAL_VALUE is not defined assume its an RC oscillator)
*/
NRF_CLOCK->TASKS_HFCLKSTOP = 1;
#if defined(NRF51_XTAL_VALUE)
#if NRF51_XTAL_VALUE == 16000000
NRF_CLOCK->XTALFREQ = 0xFF;
#elif NRF51_XTAL_VALUE == 32000000
NRF_CLOCK->XTALFREQ = 0x00;
#endif
#if !defined(NRF5_XTAL_VALUE) && (NRF5_XTAL_VALUE != 32000000)
#error "A 32Mhz crystal is mandatory on nRF52 boards."
#endif
@ -72,10 +67,10 @@ void hal_lld_init(void)
* Clock is only started if st driver requires it
*/
NRF_CLOCK->TASKS_LFCLKSTOP = 1;
NRF_CLOCK->LFCLKSRC = NRF51_LFCLK_SOURCE;
NRF_CLOCK->LFCLKSRC = NRF5_LFCLK_SOURCE;
#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) && \
(NRF51_SYSTEM_TICKS == NRF51_SYSTEM_TICKS_AS_RTC)
(NRF5_SYSTEM_TICKS == NRF5_SYSTEM_TICKS_AS_RTC)
NRF_CLOCK->TASKS_LFCLKSTART = 1;
#endif
}