RE: I2C can't transfer more than 2 bytes

Siva@Tsien — Thu, 29 Apr 2021 13:49:07 GMT

Hi awneil,

This is my main, I just managed to resolve the issue after I posted here.

int main(void)
{
    APP_ERROR_CHECK(NRF_LOG_INIT(NULL));
    NRF_LOG_DEFAULT_BACKENDS_INIT();

    NRF_LOG_INFO("\r\nTWI sensor example started.");
    NRF_LOG_FLUSH();
    twi_init();
    
    read_chip_ID();
        
    while (true)
    {
        nrf_delay_ms(500);

        do
        {
            __WFE();
        }while (m_xfer_done == false);

        //read_sensor_data();
        read_chip_ID();
        NRF_LOG_FLUSH();
    }
}

Solution is I need to comment out "NRF_LOG_FLUSH();" in the while loop after "read_chip_ID();".

Regards

Siva

RE: I2C can't transfer more than 2 bytes

awneil — Thu, 29 Apr 2021 13:41:05 GMT

The code you've posted just shows a single transmission - please show how you're doing the repeats...