andry/EMS-ESP32
1
0
Fork 0
mirror of https://github.com/emsesp/EMS-ESP32.git synced 2025-12-08 08:49:52 +03:00
Code Issues Packages Projects Releases Wiki Activity

empty rx fifo after Tx BRK

Browse Source
This commit is contained in:
proddy
2019-05-24 12:28:23 +02:00
parent cab36c38c0
commit c6a6dca81a
1 changed files with 2 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
src/emsuart.cpp
View File

@@ -237,7 +237,7 @@ void ICACHE_FLASH_ATTR emsuart_tx_buffer(uint8_t * buf, uint8_t len) {
emsuart_loopback(true); emsuart_loopback(true);
USC0(EMSUART_UART) |= (1 << UCBRK); // set <BRK> USC0(EMSUART_UART) |= (1 << UCBRK); // set <BRK>
while (!(U0IS & (1 << UIBD))) // wait until BRK detected... while (!(U0IS & (1 << UIBD))) ; // wait until BRK detected...
delayMicroseconds(EMSUART_BIT_TIME / 8); // ~13µs delayMicroseconds(EMSUART_BIT_TIME / 8); // ~13µs
USC0(EMSUART_UART) &= ~(1 << UCBRK); // clear <BRK> USC0(EMSUART_UART) &= ~(1 << UCBRK); // clear <BRK>
@@ -245,6 +245,7 @@ void ICACHE_FLASH_ATTR emsuart_tx_buffer(uint8_t * buf, uint8_t len) {
emsuart_loopback(false); // disable loopback mode emsuart_loopback(false); // disable loopback mode
} }
emsuart_flush_fifos(); // flush Rx buffer to be sure
ETS_UART_INTR_ENABLE(); // receive anything from FIFO... ETS_UART_INTR_ENABLE(); // receive anything from FIFO...
} }