I2C write/ read to 16-bit register address

RE: I2C write/ read to 16-bit register address

Kazi Afroza Sultana — Mon, 29 Apr 2024 14:08:00 GMT

Hello,

The error ''i2c_nrfx_twim: Error on I2C line occurred for message 0'' this comes from the i2c driver, more specifically our nrfx port to the zephyr I2C API.

You can look this:

https://github.com/nrfconnect/sdk-zephyr/blob/v3.1.99-ncs1/drivers/i2c/i2c_nrfx_twim.c#L171

https://github.com/nrfconnect/sdk-zephyr/blob/v3.1.99-ncs1/drivers/i2c/i2c_nrfx_twi.c#L126

You need to enable i2cX in device tree with this line:

compatible = "nordic,nrf-twim"

The EasyDMA capable peripheral NRF_TWIM is in use, which corresponds to i2c_nrfx_twim.c

RE: I2C write/ read to 16-bit register address

mystic_harbor — Thu, 18 Apr 2024 13:51:04 GMT

Can you help me fix this

RE: I2C write/ read to 16-bit register address

mystic_harbor — Wed, 17 Apr 2024 14:27:48 GMT

I did, I wasn't able to find any transactions

RE: I2C write/ read to 16-bit register address

Kazi Afroza Sultana — Wed, 17 Apr 2024 14:14:12 GMT

Hello,

Have you checked the TWI lines with a logic analyzer, to see if the expected register address is output, and if the sensor outputs any of the expected data?