From 3f655524463c8310943611fbeee34a66436b16ab Mon Sep 17 00:00:00 2001 From: Tom Rothamel Date: Tue, 21 Feb 2023 10:24:24 -0500 Subject: [PATCH] boards: arm: atsamd21_xpro: Change sercom0 tx pad and control. According to the documentation and pinctrl file, sercom0 tx should be available on PA10C/SERCOM_PAD[2]. However, and somewhat confusingly, txpo 2 meant SERCOM_PAD[0] with RTS/CTS flow control. Changing this to txpo 1 uses SERCOM_PAD[2], which allows sercom0 to work as documented. Signed-off-by: Tom Rothamel --- boards/arm/atsamd21_xpro/atsamd21_xpro.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/boards/arm/atsamd21_xpro/atsamd21_xpro.dts b/boards/arm/atsamd21_xpro/atsamd21_xpro.dts index e48e5afd46..d65d773a66 100644 --- a/boards/arm/atsamd21_xpro/atsamd21_xpro.dts +++ b/boards/arm/atsamd21_xpro/atsamd21_xpro.dts @@ -75,7 +75,7 @@ compatible = "atmel,sam0-uart"; current-speed = <9600>; rxpo = <3>; - txpo = <2>; + txpo = <1>; pinctrl-0 = <&sercom0_uart_default>; pinctrl-names = "default";