I need help for nrf5340 with I2c

[Mr.NCK]

Hi,

I am trying to learn the I2c with nrf5340 PDK. I need to interface Sht20 and Mlx90614 with nrf5340PDK. I need to know the procedures regards this on NRF Connect SDK

Thanks & Regards 

Navin

[Albrecht Markus Schellenberger]

And which function in your application does return this error code?

[Mr.NCK]

Hi markus,

While writing with the "I2C_write" function returns that error.

Thanks & Regards

Navin 

[Mr.NCK]

HI Markus

I am debugging my code by giving logging conditions. I have got the below error

Then, I have tried with a Logical analyzer. I can write on a device. But I can't able to properly read

According to the datasheet. I am trying to read the user register as like as mentioned below.

By seeing the Logic analyzer out. I understood, I can't able to set the device to read.

\

I had written the below function for reading. After, seen my requirements and my code. Kindly suggest me a way

u8t SHT2X_ReadByte(u8t reg_addr)
{
   
    u8t array[I2C_BUFFER_LEN] = { 1 };
    

    array[0] = reg_addr;
    int cnt = 1;
   
    error = i2c_write_read(i2c_dev,SHT2x_DEV_ADR,&array[0],1, &array[0], cnt);
   

    return error;
}

I have called this function like this.

 SHT2X_ReadByte (I2C_ADR_R);

Thanks & Regards

Navin