diff options
Diffstat (limited to 'testhal/STM32/STM32F7xx/GPT-ADC')
| -rw-r--r-- | testhal/STM32/STM32F7xx/GPT-ADC/main.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/testhal/STM32/STM32F7xx/GPT-ADC/main.c b/testhal/STM32/STM32F7xx/GPT-ADC/main.c index 4e1b27520..d0e810201 100644 --- a/testhal/STM32/STM32F7xx/GPT-ADC/main.c +++ b/testhal/STM32/STM32F7xx/GPT-ADC/main.c @@ -52,8 +52,10 @@ static adcsample_t samples1[ADC_GRP1_NUM_CHANNELS * ADC_GRP1_BUF_DEPTH]; size_t nx = 0, ny = 0;
static void adccallback(ADCDriver *adcp, adcsample_t *buffer, size_t n) {
- /* DMA buffer invalidation because data cache.*/
- dmaBufferInvalidate(buffer, buffer + (n * adcp->grpp->num_channels));
+ /* DMA buffer invalidation because data cache, only invalidating the
+ half buffer just filled.*/
+ dmaBufferInvalidate(buffer,
+ n * adcp->grpp->num_channels * sizeof (adcsample_t));
/* Updating counters.*/
if (samples1 == buffer) {
|