From 72ceafac25aef159f3708d829cd9f5308a7c7910 Mon Sep 17 00:00:00 2001
From: deividAlfa <48562135+deividAlfa@users.noreply.github.com>
Date: Sat, 18 Sep 2021 21:54:15 +0200
Subject: [PATCH] =?UTF-8?q?Declare=20DMA=20handler=20State=20as=20vol?=
 =?UTF-8?q?=C3=A1tile?=
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Not doing so causes issues when optimizations are enabled, the flag can change at any time by the DMA interrupt, but the compiler is unaware.
---
 Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h b/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h
index 9a407f4..39ca574 100644
--- a/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h
+++ b/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_hal_dma.h
@@ -116,7 +116,7 @@ typedef struct __DMA_HandleTypeDef
   
   HAL_LockTypeDef       Lock;                            /*!< DMA locking object                     */  
   
-  HAL_DMA_StateTypeDef  State;                           /*!< DMA transfer state                     */
+  __IO HAL_DMA_StateTypeDef  State;                           /*!< DMA transfer state                     */
   
   void                  *Parent;                                                      /*!< Parent object state                    */