nRF52810 TWI scanner integration to ble_app_uart

[Dlo123]

I can't seem to get TWI working, attached are main.c sd_config.h

The code compiles, but when stepping through in debug, it ends up in an infinite loop inside:

ret_code_t nrf_drv_twi_rx(nrf_drv_twi_t const * p_instance,
                          uint8_t               address,
                          uint8_t *             p_data,
                          uint8_t               length)
{
    ret_code_t result = 0;
    if (NRF_DRV_TWI_USE_TWIM)
    {
stuck here >>>>>   result = nrfx_twim_rx(&p_instance->u.twim,
                                address, p_data, length);
    }
    else if (NRF_DRV_TWI_USE_TWI)
    {
        result = nrfx_twi_rx(&p_instance->u.twi,
                               address, p_data, length);
    }
    return result;
}

I have oscilloscope probes on SCL and SDA, and not sign of life on either one. Using SDK 15.3 on custom board with nRF52810

Solved, I forgot to turn power to the sensors....

[Dlo123]

I downloaded the pca10040e from this thread and placed it in SDK 15.3 where I'm working on, and edited in order for it to compile, but it's behaving similarly to my current problem, hanging inside nrfx_twim,rx ....

[Ameer Usman]

Was there any resolution to this issue? Cause I am having the same problem

[Kenneth]

I suggest to connect your twi sensor to the nRF52-DK and run the \nRF5_SDK\examples\peripheral\twi_scanner example project. That project will try all twi addresses to find your sensors specific twi address.