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Merge pull request #814 from zhitaoh/fix-nrf-zero-temp-read 

fix temperature sensor reading in nrf52dk platform, which was stuck a…
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George Oikonomou 2019-01-11 13:12:56 +00:00 committed by GitHub
parent fe07e6dd79 35de5ed25e
commit e2c0964091
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1 changed files with 10 additions and 1 deletions
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11
arch/platform/nrf52dk/dev/temperature-sensor.c
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@ -64,7 +64,16 @@ static int
value(int type)
{
#ifndef SOFTDEVICE_PRESENT
return nrf_temp_read();
int32_t volatile temp;
NRF_TEMP->TASKS_START = 1;
/* nRF52832 datasheet: one temperature measurement takes typically 36 us */
RTIMER_BUSYWAIT_UNTIL(NRF_TEMP->EVENTS_DATARDY, RTIMER_SECOND * 72 / 1000000);
NRF_TEMP->EVENTS_DATARDY = 0;
temp = nrf_temp_read();
NRF_TEMP->TASKS_STOP = 1;
return temp;
#else
int32_t temp;
sd_temp_get(&temp);