From c3943f4ec2c1a9cb13b7a8e082df86092257eb04 Mon Sep 17 00:00:00 2001
From: Hydra <dominic.clifton@cleanflight.com>
Date: Thu, 17 Nov 2016 15:27:17 +0100
Subject: [PATCH] Allow ADC DMA stream to be specified.

---
 src/main/drivers/adc_stm32f4xx.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/drivers/adc_stm32f4xx.c b/src/main/drivers/adc_stm32f4xx.c
index f79e1954e..36ee525bd 100644
--- a/src/main/drivers/adc_stm32f4xx.c
+++ b/src/main/drivers/adc_stm32f4xx.c
@@ -37,8 +37,12 @@
 #define ADC_INSTANCE                ADC1
 #endif
 
+#ifndef ADC1_DMA_STREAM
+#define ADC1_DMA_STREAM DMA2_Stream4
+#endif
+
 const adcDevice_t adcHardware[] = {
-    { .ADCx = ADC1, .rccADC = RCC_APB2(ADC1), .DMAy_Streamx = DMA2_Stream4, .channel = DMA_Channel_0 },
+    { .ADCx = ADC1, .rccADC = RCC_APB2(ADC1), .DMAy_Streamx = ADC1_DMA_STREAM, .channel = DMA_Channel_0 },
     //{ .ADCx = ADC2, .rccADC = RCC_APB2(ADC2), .DMAy_Streamx = DMA2_Stream1, .channel = DMA_Channel_0 }
 };