From e2233c64f9043781248b8082e075a0830b58ff9e Mon Sep 17 00:00:00 2001
From: Rocco Marco Guglielmi <roccomarco.guglielmi@live.com>
Date: Sat, 7 May 2016 09:47:38 +0000
Subject: [PATCH] Fixed bug #740

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/stable_16.1.x@9445 35acf78f-673a-0410-8e92-d51de3d6d3f4
---
 os/hal/ports/STM32/LLD/ADCv3/adc_lld.c | 4 ++--
 readme.txt                             | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/os/hal/ports/STM32/LLD/ADCv3/adc_lld.c b/os/hal/ports/STM32/LLD/ADCv3/adc_lld.c
index b8fd20630..cfdd9c4fe 100644
--- a/os/hal/ports/STM32/LLD/ADCv3/adc_lld.c
+++ b/os/hal/ports/STM32/LLD/ADCv3/adc_lld.c
@@ -869,7 +869,7 @@ void adc_lld_stop_conversion(ADCDriver *adcp) {
  */
 void adcSTM32EnableVREF(ADCDriver *adcp) {
 
-  adcp->adcc->CCR |= ADC_CCR_VBATEN;
+  adcp->adcc->CCR |= ADC_CCR_VREFEN;
 }
 
 /**
@@ -884,7 +884,7 @@ void adcSTM32EnableVREF(ADCDriver *adcp) {
  */
 void adcSTM32DisableVREF(ADCDriver *adcp) {
 
-  adcp->adcc->CCR &= ~ADC_CCR_VBATEN;
+  adcp->adcc->CCR &= ~ADC_CCR_VREFEN;
 }
 
 /**
diff --git a/readme.txt b/readme.txt
index ccc20f5ab..f93ee6791 100644
--- a/readme.txt
+++ b/readme.txt
@@ -73,6 +73,8 @@
 *****************************************************************************
 
 *** 16.1.5 ***
+- HAL: Fixed bug in VREF enable/disable functions in ADCv3 driver 
+       (bug #740).
 - HAL: Fixed DAC driver not enabled for STM32F4x7 and STM32F4x9 devices
        (bug #739).
 - HAL: Fixed bug in interrupt handlers in STM32F4xx EXT driver (bug #738).