From 0a5d7d60eb7ec1d27501ad2934c8a5110e7dbe1c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=B5=81=E5=85=89?= <1004383796@qq.com>
Date: Thu, 4 Jun 2020 10:16:18 +0800
Subject: [PATCH] =?UTF-8?q?[upadte]=20Configure=20the=20priority=20of=20ST?=
 =?UTF-8?q?M32=20uart=20rx=20interrupts=20|=20=E6=98=BE=E5=BC=8F=E9=85=8D?=
 =?UTF-8?q?=E7=BD=AESTM32=E4=B8=B2=E5=8F=A3=E6=8E=A5=E6=94=B6=E4=B8=AD?=
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---
 bsp/stm32/libraries/HAL_Drivers/drv_usart.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_usart.c b/bsp/stm32/libraries/HAL_Drivers/drv_usart.c
index 428efbe539..c5314426d8 100644
--- a/bsp/stm32/libraries/HAL_Drivers/drv_usart.c
+++ b/bsp/stm32/libraries/HAL_Drivers/drv_usart.c
@@ -211,7 +211,8 @@ static rt_err_t stm32_control(struct rt_serial_device *serial, int cmd, void *ar
     /* enable interrupt */
     case RT_DEVICE_CTRL_SET_INT:
         /* enable rx irq */
-        NVIC_EnableIRQ(uart->config->irq_type);
+        HAL_NVIC_SetPriority(uart->config->irq_type, 1, 0); 
+        HAL_NVIC_EnableIRQ(uart->config->irq_type);
         /* enable interrupt */
         __HAL_UART_ENABLE_IT(&(uart->handle), UART_IT_RXNE);
         break;