How to use 51822 RTC on softdevice?

[Mr.M]

Hi,I use the SDK 12.2.0, I want to add the peripheral RTC example to the ble_app_uart.I find the softdevice have used the RTC1 ,so I want to use the RTC0,but when I added the RTC0 to the ble_app_uart ,the softdevice can not run.How to use 51822 RTC on the softdevice?

[RK]

how about providing more information about what 'can not run' means, what error messages you've seen, what debugging you've attempted and perhaps a code snippet.

[Mr.M]

thanks for your replay,Maybe I didn't describe it clearly.The problem is that when I add the function rtc_config() ,the program will run into app_error_fault_handler();

[RK]

ok that's good because if it's in the app_error_fault_handler() it probably got there because a function returned non-zero and was checked by APP_ERROR_CHECK() so you should have a stack trace saying how you got there plus the error code. If you find the function which returned the non-zero code plus the code, it should be fairly simple from there to work out why.

[Jørgen Holmefjord]

Hi,

From the softdevice specifications, you can see that RTC0 is blocked by the softdevice, not RTC1. You should be able to use RTC1, but note that the ble_app_uart example use the BSP module, which again use the app_timer library. The app_timer use RTC1, so you might see some conflicts if using RTC1 for other tasks.

You should check the error codes returned by the function calls, as RK suggested.

Best regards,

Jørgen

[Mr.M]

thanks for your replay,you are right,when I want to use RTC1 ,the complier prompts me that Error: L6200E: Symbol RTC1_IRQHandler multiply defined (by app_timer.o and nrf_drv_rtc.o). So, if I want to use RTC in ble_app_uart_example, I'll just use app_timer ?