nRF51822 s110 + TWI Crashes

RE: nRF51822 s110 + TWI Crashes

ypearson — Tue, 02 Aug 2016 23:50:58 GMT

Yeah, didn't use APP_TWI

static nrf_drv_twi_t m_twi_0 = NRF_DRV_TWI_INSTANCE(0);

nrf_drv_twi_t * register_access_init(uint8_t twi_instance) { err_code = nrf_drv_twi_init(&m_twi_0, 0, 0, NULL); nrf_drv_twi_enable(&m_twi_0);

return &m_twi_0;

}

Also, there may have been a conf file that was modified to get it working (forgot the exact details).

RE: nRF51822 s110 + TWI Crashes

ypearson — Tue, 02 Aug 2016 23:48:38 GMT

Yeah, didn't use APP_TWI

static nrf_drv_twi_t m_twi_0 = NRF_DRV_TWI_INSTANCE(0);

nrf_drv_twi_t * register_access_init(uint8_t twi_instance) { ret_code_t err_code; err_code = nrf_drv_twi_init(&m_twi_0, 0, 0, NULL); //APP_ERROR_CHECK(err_code); nrf_drv_twi_enable(&m_twi_0);

return &m_twi_0;

}

RE: nRF51822 s110 + TWI Crashes

Eliot Stock — Mon, 25 Jul 2016 09:48:26 GMT

@ypearson I've seen something quite similar on a custom board with an nRF51822, S130, SDK 11. Did you ever get to the bottom of this?

RE: nRF51822 s110 + TWI Crashes

Einar Thorsrud — Tue, 16 Feb 2016 12:10:27 GMT

Are you using the DK or a custom board? On the DK, pin 24 is connected to VDD via a LED and a resistor.

Can you disable the watchdog, disable compiler optimization and define DEBUG in the project/Makefile, then run the debugger? If the code ends up in a loop in the error handler, you can extract the file, line and return code of the error. If not it would be useful to step through the code and see where the problem occurs.