i2c_nrfx_twim: Error 195952641

[ael-mess]

Hello all,

I am using nRF9160 with ncs v1.2.0.

I got the error : 

<err> i2c_nrfx_twim: Error 195952641 occurred for message 0

when trying to use I2C_3, and the function i2c_read() return -5.

...
i2c_dev = device_get_binding("I2C_3");
if (!i2c_dev) {
	printk("I2C: Device driver not found.\n");
	return;
}

i2c_configure(i2c_dev, I2C_SPEED_SET(I2C_SPEED_STANDARD));
i2c_read(i2c_dev, msg, 2, register_address);
...

...
&i2c3 {
	status = "okay";
	compatible = "nordic,nrf-twim";
	sda-pin = <1>;
	scl-pin = <0>;
	clock-frequency = <I2C_BITRATE_STANDARD>;
};

...
# I2C
CONFIG_TRUSTED_EXECUTION_NONSECURE=y
CONFIG_I2C_LOG_LEVEL_DBG=y
CONFIG_I2C=y
CONFIG_I2C_NRFX=y
CONFIG_I2C_3=y
CONFIG_I2C_3_NRF_TWIM=y
...

[Håkon Alseth]

Hi,

 

If you convert from dec2hex, this is the error base:

https://github.com/nrfconnect/sdk-hal_nordic/blob/master/nrfx/drivers/nrfx_errors.h#L49

 

And this is the error code:

https://github.com/nrfconnect/sdk-hal_nordic/blob/master/nrfx/drivers/nrfx_errors.h#L68

 

The address wasn't ACKed on the bus. Do you see this error often?

 

Kind regards,

Håkon

[ael-mess]

Hi,

I got this error each time I try to read, and the transfer function returns -5.

Regards,

Amine

[Håkon Alseth]

Hi,

 

Which sensor are you connecting to, and what is the address you're using?

The error code indicates that the address is incorrect. Try shifting it left with one bit.

 

Kind regards,

Håkon