bugfix(uart): fix signal glitch on tx pin

ESP32DE · web-flow · commit 90b34138b74f · 2018-02-02T12:39:41.000+01:00
see espressif#1061
diff --git a/cores/esp32/esp32-hal-uart.c b/cores/esp32/esp32-hal-uart.c
@@ -154,6 +154,7 @@ void uartAttachTx(uart_t* uart, uint8_t txPin, bool inverted)
         return;
     }
     pinMode(txPin, OUTPUT);
+    digitalWrite(txPin, HIGH);
     pinMatrixOutAttach(txPin, UART_TXD_IDX(uart->num), inverted, false);
 }
 

Original file line number	Diff line number	Diff line change
`@@ -154,6 +154,7 @@ void uartAttachTx(uart_t* uart, uint8_t txPin, bool inverted)`
`154`	`154`	`return;`
`155`	`155`	`}`
`156`	`156`	`pinMode(txPin, OUTPUT);`
	`157`	`+ digitalWrite(txPin, HIGH);`
`157`	`158`	`pinMatrixOutAttach(txPin, UART_TXD_IDX(uart->num), inverted, false);`
`158`	`159`	`}`
`159`	`160`