Error in configuring UART pins in SDK2.3.0

Question

Hi there,

I have recently switched my complete "Bluetooth Peripheral" Project from the SDK version 1.9.1 to 2.3.0

I have been facing some of the pin control issue for the UART, as I have observe you have change the way the UART is working and added the pinctrl functionality.

Previously on the 1.9.1, I was using the UART pins shown under.

&uart0 {
	rts-pin = < 0xff >;
	cts-pin = < 0xff >;
};

&uart2 {
	current-speed = <9600>;
	status = "okay";
	tx-pin = <4>;  
	rx-pin = <5>;
	rts-pin = < 0xff >;
	cts-pin = < 0xff >;
	rx-pull-up;
};

I am using this UART2 for communicating with the BMS(Battery management system), but now in the new SDK when using the same pin configuration, I am getting the error

"d:\v2.3.0\zephyr\include\zephyr\toolchain\gcc.h:78:36: error: static assertion failed: "/soc/peripheral@50000000/uart@b000 defined without required pin configuration""

"d:\v2.3.0\zephyr\include\zephyr\toolchain\gcc.h:78:36: error: static assertion failed: "/soc/peripheral@50000000/uart@b000 has legacy *-pin properties defined although PINCTRL is enabled"

I am using SDK 2.3.0, and my board is the Nordic Thingy53.

Could you please advise on how to resolve this error and properly configure the UART on my SoC?

Regards
Sachin

sachin · Accepted Answer

Hi thanks for all the answers RossJ Menon I resolved the issue at last 
 There are some of the CONFIG that you need to add in your samples prj.conf 
 
 CONFIG_UART_INTERRUPT_DRIVEN =n 
 CONFIG_UART_0_ASYNC =y 
 CONFIG_UART_0_INTERRUPT_DRIVEN =n 
 CONFIG_NRFX_UARTE0 =y

# Enable the UART driver 
 CONFIG_UART_ASYNC_API =y 
 CONFIG_NRFX_UARTE0 =y 
 CONFIG_SERIAL =y 
 CONFIG_CONSOLE =y 
 CONFIG_UART_CONSOLE =y Add these Config and this will resolve this error.

sachin · Answer

I have figure out something and change the code accordingly, look at the changes that I have done and compare it with the old UART config and tell me if this is the correct way? &uart2 { current-speed = <9600>; status = "okay"; rx-pull-up; pinctrl-0 = <&uart2_default>; pinctrl-1 = <&uart2_sleep>; pinctrl-names = "default", "sleep"; }; &pinctrl { uart2_default: uart2_default { group1 { psels = , ; }; }; uart2_sleep: uart2_sleep { group1 { psels = , ; low-power-enable; }; }; };

Error in configuring UART pins in SDK2.3.0

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