RE: How to I2C

gocchan — Fri, 14 Apr 2023 06:49:20 GMT

Hi,

Thank you, build was successful.

RE: How to I2C

Håkon Alseth — Tue, 11 Apr 2023 08:20:07 GMT

Hi,

Could you try moving "status = "okay";" one step up?

&i2cX {
    status = "okay";
    ...
};

Also, since you are using ncs v2.x, you should use pinctrl for defining your pins. Here's an example of using I2C1, with P1.02/P1.03 as the pinout:

&pinctrl {
	i2c1_default: i2c1_default {
		group1 {
			psels = <NRF_PSEL(TWIM_SDA, 1, 2)>,
				<NRF_PSEL(TWIM_SCL, 1, 3)>;
		};
	};

	i2c1_sleep: i2c1_sleep {
		group1 {
			psels = <NRF_PSEL(TWIM_SDA, 1, 2)>,
				<NRF_PSEL(TWIM_SCL, 1, 3)>;
			low-power-enable;
		};
	};
};

&i2c1 {
	compatible = "nordic,nrf-twim";
	status = "okay";
	pinctrl-0 = <&i2c1_default>;
	pinctrl-1 = <&i2c1_sleep>;
	...
};

Kind regards,

Håkon

RE: How to I2C

gocchan — Sun, 09 Apr 2023 22:55:32 GMT

I already put it in prj.conf.

RE: How to I2C

Turbo J — Fri, 07 Apr 2023 06:46:38 GMT

Put

CONFIG_I2C=y

in prj.conf