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[drv_usart.c]修复stm32串口开启奇偶校验时字长设置错误

This commit is contained in:
Sunwancn 2021-02-24 21:11:27 +08:00
parent 2cbb9c5388
commit e22f72293e
1 changed files with 4 additions and 1 deletions
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3
bsp/stm32/libraries/HAL_Drivers/drv_usart.c
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@ -112,6 +112,9 @@ static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_c
switch (cfg->data_bits) switch (cfg->data_bits)
{ {
case DATA_BITS_8: case DATA_BITS_8:
if (cfg->parity == PARITY_ODD || cfg->parity == PARITY_EVEN)
uart->handle.Init.WordLength = UART_WORDLENGTH_9B;
else
uart->handle.Init.WordLength = UART_WORDLENGTH_8B; uart->handle.Init.WordLength = UART_WORDLENGTH_8B;
break; break;
case DATA_BITS_9: case DATA_BITS_9: