From 18bcd2b2c6d1554f2bd7ec8de90ccd36d943626b Mon Sep 17 00:00:00 2001
From: BalanceTWK <linuxtwk@outlook.com>
Date: Thu, 6 Dec 2018 09:07:55 +0800
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---
 bsp/stm32f10x/drivers/usart.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/bsp/stm32f10x/drivers/usart.c b/bsp/stm32f10x/drivers/usart.c
index 3841a5c9f..18059bf1d 100644
--- a/bsp/stm32f10x/drivers/usart.c
+++ b/bsp/stm32f10x/drivers/usart.c
@@ -100,6 +100,8 @@ static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_c
 
     /* Enable USART */
     USART_Cmd(uart->uart_device, ENABLE);
+    
+    USART_ClearFlag(uart->uart_device,USART_FLAG_TC);
 
     return RT_EOK;
 }
-- 
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