diff options
Diffstat (limited to 'src/stmf0/ao_adc_fast.c')
| -rw-r--r-- | src/stmf0/ao_adc_fast.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/stmf0/ao_adc_fast.c b/src/stmf0/ao_adc_fast.c index 26e6691c..f6740b0e 100644 --- a/src/stmf0/ao_adc_fast.c +++ b/src/stmf0/ao_adc_fast.c @@ -83,7 +83,6 @@ void ao_adc_init(void) { uint32_t chselr; - int i; /* Reset ADC */ stm_rcc.apb2rstr |= (1 << STM_RCC_APB2RSTR_ADCRST); @@ -157,12 +156,13 @@ ao_adc_init(void) /* Shortest sample time */ stm_adc.smpr = STM_ADC_SMPR_SMP_1_5 << STM_ADC_SMPR_SMP; + /* Turn off enable and start */ + stm_adc.cr &= ~((1 << STM_ADC_CR_ADEN) | (1 << STM_ADC_CR_ADSTART)); + /* Calibrate */ stm_adc.cr |= (1 << STM_ADC_CR_ADCAL); - for (i = 0; i < 0xf000; i++) { - if ((stm_adc.cr & (1 << STM_ADC_CR_ADCAL)) == 0) - break; - } + while ((stm_adc.cr & (1 << STM_ADC_CR_ADCAL)) != 0) + ; /* Enable */ stm_adc.cr |= (1 << STM_ADC_CR_ADEN); |