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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2012-09-30 15:40:06 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2012-09-30 15:40:06 +0000 |
| commit | 2a74bb8d6c4e707e58b198ed5a1b69199dcb9103 (patch) | |
| tree | ad10e130c89159b501907e65f785a5ac711fcb74 /os/hal/platforms/STM32F1xx/adc_lld.c | |
| parent | dfe1ebcefa6c5f5fd7ee60da8d84d7c5e1015341 (diff) | |
| download | ChibiOS-2a74bb8d6c4e707e58b198ed5a1b69199dcb9103.tar.gz ChibiOS-2a74bb8d6c4e707e58b198ed5a1b69199dcb9103.tar.bz2 ChibiOS-2a74bb8d6c4e707e58b198ed5a1b69199dcb9103.zip | |
Updated STM32F1, F2, F4, L1 ADC drivers to allow HW triggering.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4728 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/platforms/STM32F1xx/adc_lld.c')
| -rw-r--r-- | os/hal/platforms/STM32F1xx/adc_lld.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/os/hal/platforms/STM32F1xx/adc_lld.c b/os/hal/platforms/STM32F1xx/adc_lld.c index c5fb252a8..d87cc7917 100644 --- a/os/hal/platforms/STM32F1xx/adc_lld.c +++ b/os/hal/platforms/STM32F1xx/adc_lld.c @@ -181,7 +181,7 @@ void adc_lld_stop(ADCDriver *adcp) { * @notapi
*/
void adc_lld_start_conversion(ADCDriver *adcp) {
- uint32_t mode, n;
+ uint32_t mode, n, cr2;
const ADCConversionGroup *grpp = adcp->grpp;
/* DMA setup.*/
@@ -203,7 +203,10 @@ void adc_lld_start_conversion(ADCDriver *adcp) { /* ADC setup.*/
adcp->adc->CR1 = grpp->cr1 | ADC_CR1_SCAN;
- adcp->adc->CR2 = grpp->cr2 | ADC_CR2_DMA | ADC_CR2_CONT | ADC_CR2_ADON;
+ cr2 = grpp->cr2 | ADC_CR2_DMA | ADC_CR2_ADON;
+ if ((cr2 & (ADC_CR2_EXTTRIG | ADC_CR2_JEXTTRIG)) == 0)
+ cr2 |= ADC_CR2_CONT;
+ adcp->adc->CR2 = grpp->cr2 | cr2;
adcp->adc->SMPR1 = grpp->smpr1;
adcp->adc->SMPR2 = grpp->smpr2;
adcp->adc->SQR1 = grpp->sqr1;
@@ -211,7 +214,7 @@ void adc_lld_start_conversion(ADCDriver *adcp) { adcp->adc->SQR3 = grpp->sqr3;
/* ADC start by writing ADC_CR2_ADON a second time.*/
- adcp->adc->CR2 = grpp->cr2 | ADC_CR2_DMA | ADC_CR2_CONT | ADC_CR2_ADON;
+ adcp->adc->CR2 = cr2;
}
/**
|