diff options
| author | Meco Man <[email protected]> | 2022-08-04 19:08:28 -0400 |
|---|---|---|
| committer | Man, Jianting (Meco) <[email protected]> | 2022-08-04 22:51:34 -0400 |
| commit | 76885ca908319d2f6b587ccd363bffa4f038cbfc (patch) | |
| tree | 51463e106256033a3be795d1d79971c0e4a0e846 | |
| parent | c33289ace78e7413005c0ea7e4e174ac8d2c0b58 (diff) | |
[stm32][drv_serial] 修复recv_len意外为负（即很大正数）的问题
https://github.com/RT-Thread/rt-thread/issues/6106
https://github.com/RT-Thread/rt-thread/issues/4467#issuecomment-850814143
| -rw-r--r-- | bsp/stm32/libraries/HAL_Drivers/drv_usart.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/bsp/stm32/libraries/HAL_Drivers/drv_usart.c b/bsp/stm32/libraries/HAL_Drivers/drv_usart.c index 63644bc719..97de96b22d 100644 --- a/bsp/stm32/libraries/HAL_Drivers/drv_usart.c +++ b/bsp/stm32/libraries/HAL_Drivers/drv_usart.c @@ -489,7 +489,7 @@ static void dma_isr(struct rt_serial_device *serial) } else { - recv_len = recv_total_index - uart->dma_rx.last_index; + recv_len = serial->config.bufsz - uart->dma_rx.last_index + recv_total_index; } uart->dma_rx.last_index = recv_total_index; rt_hw_interrupt_enable(level); |