Unable to interface CCS881 with nrf board : error : Failed to get device binding

RE: Unable to interface CCS881 with nrf board : error : Failed to get device binding

mschweig — Fri, 09 Jul 2021 07:42:03 GMT

Hi, I am doing the same and I get the same error. Have you managed the communication with the ccs811?

RE: Unable to interface CCS881 with nrf board : error : Failed to get device binding

Simon — Fri, 24 Jul 2020 22:05:11 GMT

Could you simply try to add the interrupts field like it's done here? Hmm.. I find it strange that the error comes up when it's set in the file nrf9160_common.dtsi. However, try to set it in the overlay file and see if the error goes away.

Best regards,

Simon

RE: Unable to interface CCS881 with nrf board : error : Failed to get device binding

Aditya_s — Tue, 21 Jul 2020 20:18:40 GMT

I get this error while building the code:

RE: Unable to interface CCS881 with nrf board : error : Failed to get device binding

Simon — Tue, 21 Jul 2020 18:32:36 GMT

Try adding compatible = "nordic,nrf-twim"; to the overlay file:

&i2c2 {
    compatible = "nordic,nrf-twim"; //Add this
    status = "okay";
    sda-pin = < 12 >;
    scl-pin = < 11 >;
    clock-frequency = <I2C_BITRATE_S
    ..
    ..
    ..
}

If it still doesn't work, try to debug the init function to see if/what is failing.

Best regards,

Simon

RE: Unable to interface CCS881 with nrf board : error : Failed to get device binding

Aditya_s — Fri, 17 Jul 2020 16:55:23 GMT

Hello Simon,

The NCS tag is v1.2.0

Thank you for your response. My connections are as follows:

Vin : 5v
GND,WAKE : Ground
SDA : P0.11

SCL : P0.12

This is how my overlay file looks like. Are connections okay?

&i2c2 {
status = "ok";
sda-pin = < 12 >;
scl-pin = < 11 >;
clock-frequency = <I2C_BITRATE_STANDARD>;

/* The I2C address could be one of two, here 0x5A is assumed */
ccs811@5A {
compatible = "ams,ccs811";
reg = <0x5A>;
label = "CCS811";
};
};

RE: Unable to interface CCS881 with nrf board : error : Failed to get device binding

Simon — Fri, 17 Jul 2020 09:18:21 GMT

What NCS version are you using?

Have you connected the sensor correctly to your board? If not, the call to device_get_binding() will fail, since the init function of the CC811 driver will do some different checks to see if it's connected properly or not. Read more about this here.

You should debug the mentioned init function and see if it fails or not.

Best regards,

Simon