NACK from i2c slave

RE: NACK from i2c slave

Maniasai — Wed, 19 Feb 2020 04:51:41 GMT

Thank for your Reply Simonr

I am also check the twi_handler. but i did not get any positive result . Received data return zero only. I also connect 4.7k resistor between nrf51822 and stc3115 i2c path.

what is the exact problem in my scenario .How to handle my problem.

If anyone know .please let me know

err_code = nrf_drv_twi_init(&m_twi, &twi_lm75b_config, twi_handler, NULL);

RE: NACK from i2c slave

Simonr — Tue, 18 Feb 2020 13:34:56 GMT

If you're using the TWI handler (third parameter in nrf_drv_twi_init), then you'll get an event that indicates a NACK event. This event should be handled in the TWI handler. If so, the nrf_drv_twi_tx() will return NRF_SUCCESS even though you get a NACK.

Best regards,

Simon

RE: NACK from i2c slave

awneil — Tue, 18 Feb 2020 11:52:20 GMT