nrf51822 not working in non-Debug mode

[Sergy]

I have nrf51822 controlling 2 I2C devices:

1. OLED display - SSD1306
2. Capacitive touch sensor - CAP1203

When in debug mode I get images on display, however when i disconnect debugger I dont get any output on the screen. Why would it work differently in a non-debug mode?

Second problem is that CAP1203 generates interrupt by pulling IRQ line low and then I need to issue I2C command to clear the register so that the IRQ line would be released. In debug step-by-step mode if I do it step by step I get GPIO interrupt, process it send I2C command and it works. In debug mode but without step-by-step the first time I receive interrupt correctly and then IRQ line doesnt get released. Any idea what could be wrong?

Thanks!

[Muhammad Akram Karimi]

m_twi_mag3110 is actually the nrf_drv_twi_t m_twi_mag3110 = NRF_DRV_TWI_INSTANCE(0);