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Diffstat (limited to 'os/hal/platforms/STM32/uart_lld.h')
-rw-r--r--os/hal/platforms/STM32/uart_lld.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/os/hal/platforms/STM32/uart_lld.h b/os/hal/platforms/STM32/uart_lld.h
index 2977e15c5..50eacbd9c 100644
--- a/os/hal/platforms/STM32/uart_lld.h
+++ b/os/hal/platforms/STM32/uart_lld.h
@@ -148,7 +148,7 @@ typedef struct {
/** @brief Transmit DMA channel.*/
uint8_t ud_dmatx;
/** @brief Default receive buffer while into @p UART_RX_IDLE state.*/
- uint16_t ud_rxbuf;
+ volatile uint16_t ud_rxbuf;
} UARTDriver;
/*===========================================================================*/