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| author | Stephane D'Alu <sdalu@sdalu.com> | 2016-02-05 23:54:23 +0100 |
|---|---|---|
| committer | Stephane D'Alu <sdalu@sdalu.com> | 2016-02-05 23:54:23 +0100 |
| commit | 8fe62a0f907639db23f14d17a45a7970854f1d22 (patch) | |
| tree | 94ed5d7c466003fabd19065fc74906d30dced297 /os/hal/ports/NRF51/NRF51822/hal_lld.c | |
| parent | 80af295f27f0fc5daaaea04cb249d3ad3704d338 (diff) | |
| download | ChibiOS-Contrib-8fe62a0f907639db23f14d17a45a7970854f1d22.tar.gz ChibiOS-Contrib-8fe62a0f907639db23f14d17a45a7970854f1d22.tar.bz2 ChibiOS-Contrib-8fe62a0f907639db23f14d17a45a7970854f1d22.zip | |
use mcuconf.h with NRF51_SYSTEM_TICKS to select the timer source (TIMER or RTC)
Diffstat (limited to 'os/hal/ports/NRF51/NRF51822/hal_lld.c')
| -rw-r--r-- | os/hal/ports/NRF51/NRF51822/hal_lld.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/os/hal/ports/NRF51/NRF51822/hal_lld.c b/os/hal/ports/NRF51/NRF51822/hal_lld.c index 30fe6c0..af5e377 100644 --- a/os/hal/ports/NRF51/NRF51822/hal_lld.c +++ b/os/hal/ports/NRF51/NRF51822/hal_lld.c @@ -66,22 +66,16 @@ void hal_lld_init(void) NRF_CLOCK->XTALFREQ = 0x00; #endif #endif + /* Low frequency clock initialisation - * If source not specified, use the internal RC (0) which is prefered - * over synthetized clock from the high frequency clock (2) + * Clock is only started if st driver requires it */ -#if defined(NRF51_LFCLK_SOURCE) -#if (NRF51_LFCLK_SOURCE >=0) && (NRF51_LFCLK_SOURCE <= 2) + NRF_CLOCK->TASKS_LFCLKSTOP = 1; NRF_CLOCK->LFCLKSRC = NRF51_LFCLK_SOURCE; -#else -#error "Possible value for NRF51_LFCLK_SOURCE are 0=RC, 1=XTAL, 2=Synth" -#endif -#else - NRF_CLOCK->LFCLKSRC = 0; -#endif -#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) +#if (OSAL_ST_MODE != OSAL_ST_MODE_NONE) && \ + (NRF51_SYSTEM_TICKS == NRF51_SYSTEM_TICKS_AS_RTC) NRF_CLOCK->TASKS_LFCLKSTART = 1; #endif } |