error: #20: identifier "NRFX_TIMER0_INST_IDX" is undefined

[Vishal Aditya]

Hi

I am using nRF5_SDK_15.1.0_a8c0c4d\examples\ble_peripheral\ble_app_uart & merged TWI sensor as well as nRF5_SDK_15.1.0_a8c0c4d\examples\peripheral\saadc. TWI works well after merging but SAADC gives error:

Consider,

1. I have checked this post: https://devzone.nordicsemi.com/f/nordic-q-a/36164/return-error-error-20-identifier-nrfx_timer0_inst_idx-is-undefined
2. I have enabled everything check the attached screenshots:

[Jørgen Holmefjord]

Hi,

Do you have the legacy TIMER driver configs in your sdk_config.h file? If you do, you need to completely remove these configs from the file in order for the NRFX_TIMER configs to not be overwritten by apply_old_config.h.

Also note that you cannot use TIMER0 in an application that use the softdevice. The softdevice use TIMER0 instance, and use of this is blocked for user application. TIMER1-4 is available and can be used.

Best regards,
Jørgen