jacob.eva/arduino-esp32
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Fix uart TX flushing (#2029)

Browse Source 
wait for FSM to return idle
This commit is contained in:
Bert Melis 2018-11-19 17:04:05 +01:00 committed by Me No Dev
parent af79e18ecb
commit 44ca2ee976
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
cores/esp32/esp32-hal-uart.c
View File

@ -333,7 +333,7 @@ void uartFlush(uart_t* uart)
} }
UART_MUTEX_LOCK(); UART_MUTEX_LOCK();
while(uart->dev->status.txfifo_cnt); while(uart->dev->status.txfifo_cnt || uart->dev->status.st_utx_out);
//Due to hardware issue, we can not use fifo_rst to reset uart fifo. //Due to hardware issue, we can not use fifo_rst to reset uart fifo.
//See description about UART_TXFIFO_RST and UART_RXFIFO_RST in <<esp32_technical_reference_manual>> v2.6 or later. //See description about UART_TXFIFO_RST and UART_RXFIFO_RST in <<esp32_technical_reference_manual>> v2.6 or later.