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Fixes UART MODBUS and Loopback issue (#6133)

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Rodrigo Garcia 2022-01-17 09:54:13 -03:00 committed by GitHub
parent 1bbe61ab6f
commit 5ae3886c66
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 4 deletions
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5
cores/esp32/esp32-hal-uart.c
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@ -153,9 +153,6 @@ uart_t* uartBegin(uint8_t uart_nr, uint32_t baudrate, uint32_t config, int8_t rx
ESP_ERROR_CHECK(uart_set_line_inverse(uart_nr, UART_SIGNAL_TXD_INV | UART_SIGNAL_RXD_INV));
}
// Set RS485 half duplex mode on UART. This shall force flush to wait up to sending all bits out
ESP_ERROR_CHECK(uart_set_mode(uart_nr, UART_MODE_RS485_HALF_DUPLEX));
UART_MUTEX_UNLOCK();
uartFlush(uart);
@ -306,7 +303,7 @@ void uartFlushTxOnly(uart_t* uart, bool txOnly)
}
UART_MUTEX_LOCK();
ESP_ERROR_CHECK(uart_wait_tx_done(uart->num, portMAX_DELAY));
while(!uart_ll_is_tx_idle(UART_LL_GET_HW(uart->num)));
if ( !txOnly ) {
ESP_ERROR_CHECK(uart_flush_input(uart->num));