From 808c218d7b103b86eeae0c82acd80fe14f2fd4c3 Mon Sep 17 00:00:00 2001
From: gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4>
Date: Tue, 24 Nov 2009 21:32:19 +0000
Subject: [PATCH] git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1324
 35acf78f-673a-0410-8e92-d51de3d6d3f4

---
 os/io/platforms/STM32/adc_lld.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/os/io/platforms/STM32/adc_lld.c b/os/io/platforms/STM32/adc_lld.c
index 567b03a2a..1aac86fe7 100644
--- a/os/io/platforms/STM32/adc_lld.c
+++ b/os/io/platforms/STM32/adc_lld.c
@@ -217,6 +217,9 @@ void adc_lld_start_conversion(ADCDriver *adcp) {
   adcp->ad_adc->SQR3  = grpp->acg_sqr3;
   adcp->ad_adc->CR1   = grpp->acg_cr1 | ADC_CR1_SCAN;
   adcp->ad_adc->CR2   = grpp->acg_cr2 | ADC_CR2_DMA | ADC_CR2_ADON;
+
+  /* ADC start.*/
+  adcp->ad_adc->CR2  |= ADC_CR2_SWSTART | ADC_CR2_EXTTRIG;
 }
 
 /**
@@ -226,7 +229,7 @@ void adc_lld_start_conversion(ADCDriver *adcp) {
  */
 void adc_lld_stop_conversion(ADCDriver *adcp) {
 
-  adcp->ad_adc->CR2 &= ~(ADC_CR2_SWSTART | ADC_CR2_EXTTRIG);
+  adcp->ad_adc->CR2 = ADC_CR2_ADON;
   adcp->ad_dma->CCR = 0;
 }