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authorgdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2015-08-13 13:03:42 +0000
committergdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>2015-08-13 13:03:42 +0000
commita2b33f23233a009759e3fad20b031b7cb9f92278 (patch)
treec246f08b1e8e28a0c59eef90e80fb7a9549ac907 /os/hal/ports
parentd46360e613ac879b9564346d683592a26718ad9b (diff)
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Fixed a problem caused by STM32F7xx errata.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8213 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/ports')
-rw-r--r--os/hal/ports/STM32/LLD/ADCv2/adc_lld.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/os/hal/ports/STM32/LLD/ADCv2/adc_lld.c b/os/hal/ports/STM32/LLD/ADCv2/adc_lld.c
index 75d7af606..e8a2e87d9 100644
--- a/os/hal/ports/STM32/LLD/ADCv2/adc_lld.c
+++ b/os/hal/ports/STM32/LLD/ADCv2/adc_lld.c
@@ -84,6 +84,12 @@ static void adc_lld_serve_rx_interrupt(ADCDriver *adcp, uint32_t flags) {
/* It is possible that the conversion group has already be reset by the
ADC error handler, in this case this interrupt is spurious.*/
if (adcp->grpp != NULL) {
+
+ /* DMA buffer invalidation because data cache.*/
+ dmaBufferInvalidate(adcp->samples,
+ adcp->samples +
+ (adcp->depth * adcp->grpp->num_channels));
+
if ((flags & STM32_DMA_ISR_TCIF) != 0) {
/* Transfer complete processing.*/
_adc_isr_full_code(adcp);