Disable Rx pin pull-up, caused malfunction with cheap adapters

7 years ago · 935e05a56a
parent a72e2bed63
commit 935e05a56a
1 changed files with 1 additions and 0 deletions
--- a/user/uart_handler.c
+++ b/user/uart_handler.c
@ -52,6 +52,7 @@ void ICACHE_FLASH_ATTR UART_Init(void)

 	// U0RXD
 	PIN_FUNC_SELECT(PERIPHS_IO_MUX_U0RXD_U, FUNC_U0RXD);
+	PIN_PULLUP_DIS(PERIPHS_IO_MUX_U0RXD_U);

 	// U1TXD (GPIO2)
 	PIN_FUNC_SELECT(PERIPHS_IO_MUX_GPIO2_U, FUNC_U1TXD_BK);