Configuring I2C in nrf54L15-PDK using NCS 2.7.0

RE: Configuring I2C in nrf54L15-PDK using NCS 2.7.0

Kazi Afroza Sultana — Fri, 06 Dec 2024 11:54:11 GMT

Hello,

''I have figured out this thing but now I am facing an issue that GPIO output voltage is 1.8v, but I need it at least 3v on my GPIO's.
Is it possible to increase the output voltage of the GPIO's?''

You can use the Board Configurator app from nRF Connect for Desktop app to set the GPIO voltage.

source. https://docs.nordicsemi.com/bundle/nrf-connect-board-configurator/page/index.html

RE: Configuring I2C in nrf54L15-PDK using NCS 2.7.0

Usama Shafiq — Tue, 03 Dec 2024 10:58:12 GMT

&i2c21 {

compatible = "nordic,nrf-twi";

status = "okay";

reg = <0xc7000 0x1000>;

pinctrl-0 = <&i2c21_default>;

pinctrl-names = "default";

mysensor: mysensor@3c{

compatible = "i2c-device";

reg = <0x3c>;

label = "MYSENSOR";

};

&pinctrl {

i2c21_default: i2c21_default {

group1 {

psels = <NRF_PSEL(TWIM_SCL, 1, 0)>, <NRF_PSEL(TWIM_SDA, 1, 1)>;

};

};

I have figured out this thing but now I am facing an issue that GPIO output voltage is 1.8v, but I need it at least 3v on my GPIO's.
Is it possible to increase the output voltage of the GPIO's?

RE: Configuring I2C in nrf54L15-PDK using NCS 2.7.0

Kazi Afroza Sultana — Tue, 03 Dec 2024 10:21:34 GMT

Hello,

Did you add the child node in the overlay file under i2c20 node?

RE: Configuring I2C in nrf54L15-PDK using NCS 2.7.0

Usama Shafiq — Fri, 29 Nov 2024 04:39:08 GMT

&i2c20 {

compatible = "nordic,nrf-twim";

status = "okay";

clock-frequency = <I2C_BITRATE_STANDARD>;

pinctrl-0 = <&i2c20_default>;

pinctrl-1 = <&i2c20_sleep>;

pinctrl_names = "default", "sleep";

};

here It says that &i2c20_default and &i2c20_sleep is unknown node.

RE: Configuring I2C in nrf54L15-PDK using NCS 2.7.0

Usama Shafiq — Fri, 29 Nov 2024 04:05:06 GMT

devicetree error: F:/TestFiles/blinky_2_7_0/nrf54l15pdk_nrf54l15_cpuapp.overlay:14 (column 1): parse error: undefined node label 'i2c0'

This is the error I get when I add i2c0 node

RE: Configuring I2C in nrf54L15-PDK using NCS 2.7.0

Kazi Afroza Sultana — Thu, 28 Nov 2024 13:41:59 GMT

Hello,

You can follow this document https://academy.nordicsemi.com/courses/nrf-connect-sdk-fundamentals/lessons/lesson-6-serial-com-i2c/ to know how to configure i2C. As the sensor is external t the board, o we need to add an overlay file to specify the external sensor to a child node of 12c node. You will see an example in the above-mentioned document.