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empty rx fifo after Tx BRK

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proddy
2019-05-24 12:28:23 +02:00
parent cab36c38c0
commit c6a6dca81a
1 changed files with 2 additions and 1 deletions
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3
src/emsuart.cpp
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@@ -237,7 +237,7 @@ void ICACHE_FLASH_ATTR emsuart_tx_buffer(uint8_t * buf, uint8_t len) {
emsuart_loopback(true);
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
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_flush_fifos(); // flush Rx buffer to be sure
ETS_UART_INTR_ENABLE(); // receive anything from FIFO...
}