SoC: Fix implementation of uart_read of hbirdv2 SoC

Signed-off-by: Huaqi Fang <578567190@qq.com>
riscv-mcu · Dec 16, 2020 · cfa3b33 · cfa3b33
1 parent e77b307
commit cfa3b33
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/SoC/hbirdv2/Common/Source/Drivers/hbirdv2_uart.c b/SoC/hbirdv2/Common/Source/Drivers/hbirdv2_uart.c
@@ -87,6 +87,7 @@ uint8_t uart_read(UART_TypeDef *uart)
         return -1;
     }
 
+    while ((uart->LSR & 0x1) == 0);
     reg = uart->RBR;
 
     return (uint8_t)(reg & 0xFF);