nRF52840 RTC example, multiple definition of `RTC1_IRQHandler'

[Philip]

Hi. I am trying to add a RTC to my ble project. I copied all the simple code from the RTC example, and set all the sdk_config.h settings to match.

As per usual millions of issues. I have waded through most of the build errors. I have now got to the this issue;

1> C:\Nordic_Semi\nRF5_SDK_15.0.0_a53641a\components\libraries\timer/app_timer.c:907: multiple definition of `RTC1_IRQHandler'

I have had a good search around and have no idea what the issue is here. Have tried loads of combinations of the config settings, but these below are the current ones (not building).

// <e> NRFX_RTC_ENABLED - nrfx_rtc - RTC peripheral driver
//==========================================================
#ifndef NRFX_RTC_ENABLED
#define NRFX_RTC_ENABLED 1
#endif
// <q> NRFX_RTC0_ENABLED  - Enable RTC0 instance
 

#ifndef NRFX_RTC0_ENABLED
#define NRFX_RTC0_ENABLED 0
#endif

// <q> NRFX_RTC1_ENABLED  - Enable RTC1 instance
 

#ifndef NRFX_RTC1_ENABLED
#define NRFX_RTC1_ENABLED 0
#endif

// <q> NRFX_RTC2_ENABLED  - Enable RTC2 instance
 

#ifndef NRFX_RTC2_ENABLED
#define NRFX_RTC2_ENABLED 0
#endif

// <e> RTC_ENABLED - nrf_drv_rtc - RTC peripheral driver - legacy layer
//==========================================================
#ifndef RTC_ENABLED
#define RTC_ENABLED 1
#endif
// <o> RTC_DEFAULT_CONFIG_FREQUENCY - Frequency  <16-32768> 


#ifndef RTC_DEFAULT_CONFIG_FREQUENCY
#define RTC_DEFAULT_CONFIG_FREQUENCY 32768
#endif

// <q> RTC_DEFAULT_CONFIG_RELIABLE  - Ensures safe compare event triggering
 

#ifndef RTC_DEFAULT_CONFIG_RELIABLE
#define RTC_DEFAULT_CONFIG_RELIABLE 0
#endif

// <o> RTC_DEFAULT_CONFIG_IRQ_PRIORITY  - Interrupt priority
 

// <i> Priorities 0,2 (nRF51) and 0,1,4,5 (nRF52) are reserved for SoftDevice
// <0=> 0 (highest) 
// <1=> 1 
// <2=> 2 
// <3=> 3 
// <4=> 4 
// <5=> 5 
// <6=> 6 
// <7=> 7 

#ifndef RTC_DEFAULT_CONFIG_IRQ_PRIORITY
#define RTC_DEFAULT_CONFIG_IRQ_PRIORITY 7
#endif

// <q> RTC0_ENABLED  - Enable RTC0 instance
 

#ifndef RTC0_ENABLED
#define RTC0_ENABLED 0
#endif

// <q> RTC1_ENABLED  - Enable RTC1 instance
 

#ifndef RTC1_ENABLED
#define RTC1_ENABLED 1
#endif

// <q> RTC2_ENABLED  - Enable RTC2 instance
 

#ifndef RTC2_ENABLED
#define RTC2_ENABLED 0
#endif

Any help would be appreciated. 

Thanks

[Philip]

EDIT: I moved it to RTC2 and it built ok, so maybe RTC1 is being used by the soft device?

[AndreasF]

Hi.

Only RTC0 is blocked by the SoftDevice (S140 / S132).

Maybe you had defined RTC1 another place in your code, and that gave the error?

Glad you figured it out.

- Andreas

[awneil]

AndreasF said:

Maybe you had defined RTC1 another place in your code

Indeed.

Philip - you only gave part of the error message in your OP; the full message gives you the locations of both definitions.

[Philip]

Ah ok, thanks. RTC2 should be ok, but I will change it back and have a look for the second definition.

[L.B.]

Hi,

just wanted to say that the APP_TIMER library uses the RTC1. If you have it in your project (usually the Bluetooth example includes it), you can try to disable it.