How to add clock function to ble_app_uart? (SDK12 with nRF51DK)

[Sergio T]

I need to add a clock function to the ble_app_uart example (SDK12). Where can I find a hint on how to do it? Do I need an external 32768Hz quartz? I wanted to derive from the 16 MHz quartz instead to save cost.

[Sergio T]

Sorry, I found the problem: I had to add 

NVIC_SetPriority(TIMER1_IRQn, 3);
NVIC_EnableIRQ(TIMER1_IRQn);

before starting TIMER1. Now I get TIMER1 interrupts.

Thanks for the help.

[Edvin]

Hello,

Good to hear that you found the cause of the issue!