From e4df1ff09dbf2f53accb9f93eacc4c9db15a4c6f Mon Sep 17 00:00:00 2001 From: Giovanni Di Sirio Date: Thu, 27 Aug 2015 11:43:17 +0000 Subject: Improved M7 cache handling. git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@8246 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- testhal/STM32/STM32F7xx/GPT-ADC/main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'testhal/STM32/STM32F7xx/GPT-ADC/main.c') 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) { -- cgit v1.2.3