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Diffstat (limited to 'os/hal/ports/NRF51/NRF51822/rng_lld.c')
-rw-r--r--os/hal/ports/NRF51/NRF51822/rng_lld.c11
1 files changed, 2 insertions, 9 deletions
diff --git a/os/hal/ports/NRF51/NRF51822/rng_lld.c b/os/hal/ports/NRF51/NRF51822/rng_lld.c
index b22b9fc..12a75e7 100644
--- a/os/hal/ports/NRF51/NRF51822/rng_lld.c
+++ b/os/hal/ports/NRF51/NRF51822/rng_lld.c
@@ -124,19 +124,12 @@ msg_t rng_lld_write(RNGDriver *rngp, uint8_t *buf, size_t n,
if (n == 0)
return MSG_OK;
- if (n == 1)
- rngp->rng->SHORTS |= RNG_SHORTS_VALRDY_STOP_Msk;
+ NRF_RNG->EVENTS_VALRDY = 0;
-
-
- NRF_RNG->EVENTS_VALRDY = 0;
-
for (i = 0 ; i < n ; i++) {
- /* sleep until number is generated */
+ /* wait for next byte */
while (NRF_RNG->EVENTS_VALRDY == 0) {
- /* enable wake up on events for __WFE CPU sleep */
SCB->SCR |= SCB_SCR_SEVONPEND_Msk;
- /* sleep until next event */
__SEV();
__WFE();
__WFE();