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Merge pull request #2048 from greedyhao/master 

[bsp/stm32f7-disco] 修复串口驱动编译报错
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Bernard Xiong 2018-12-10 09:33:17 +08:00 committed by GitHub
parent 9677fe6f2c 762c1be8bb
commit 70cb67245f
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 1 deletions
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bsp/stm32f7-disco/drivers/drv_usart.c
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@ -106,8 +106,9 @@ static int drv_putc(struct rt_serial_device *serial, char c)
struct drv_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = (struct drv_uart *)serial->parent.user_data;
__HAL_UART_CLEAR_FLAG(&(uart->UartHandle), UART_FLAG_TC);
__HAL_UART_CLEAR_IT(&(uart->UartHandle), UART_CLEAR_TCF);
uart->UartHandle.Instance->TDR = c;
while (__HAL_UART_GET_FLAG(&(uart->UartHandle), UART_FLAG_TC) == RESET);
return 1;
}