diff options
| -rw-r--r-- | ports/nrf/mphalport.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/ports/nrf/mphalport.c b/ports/nrf/mphalport.c index fc6882d79..e0f42ac58 100644 --- a/ports/nrf/mphalport.c +++ b/ports/nrf/mphalport.c @@ -82,6 +82,10 @@ void mp_hal_stdout_tx_str(const char *str) { void mp_hal_delay_us(mp_uint_t us) { + if (us == 0) { + return; + } + register uint32_t delay __ASM ("r0") = us; __ASM volatile ( #ifdef NRF51 |