From 0fc7158ffbdae6d5c48f03f3d080ef3a825c0ed3 Mon Sep 17 00:00:00 2001 From: HubretXie Date: Mon, 8 Feb 2021 18:26:03 +0800 Subject: [PATCH] [drivers]serial.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 解决STM32串口使用DMA接收方式时，清空缓存bug --- components/drivers/serial/serial.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/components/drivers/serial/serial.c b/components/drivers/serial/serial.c index 5cd44f3771..76298ea153 100644 --- a/components/drivers/serial/serial.c +++ b/components/drivers/serial/serial.c @@ -955,9 +955,7 @@ static void _tc_flush(struct rt_serial_device *serial, int queue) { RT_ASSERT(RT_NULL != rx_fifo); level = rt_hw_interrupt_disable(); - rt_memset(rx_fifo->buffer, 0, serial->config.bufsz); - rx_fifo->put_index = 0; - rx_fifo->get_index = 0; + rx_fifo->get_index = rx_fifo->put_index; rx_fifo->is_full = RT_FALSE; rt_hw_interrupt_enable(level); } -- GitLab