IAR Error[Pe020]: identifier "NRFX_TIMER1_INST_IDX" is undefined

[Alex_Golubev]

Hello,

I am using the NRF52-DK softdevice 6.0.0 and NRF SDK 15.0.The app is based on on the saadc PCA10040 S112. I want to add static const nrf_drv_timer_t m_timer = NRF_DRV_TIMER_INSTANCE(1); in my main.c 

in sdk_config.h I then setup :
#define NRFX_TIMER_ENABLED 1
#define NRFX_TIMER1_ENABLED 1

If I compile, I have the following issue :
Error[Pe020]: identifier "NRFX_TIMER1_INST_IDX" is undefined

Could you please explain me what is my mistake?Thanks

[Simon]

Yes you have understood it correctly. 

In these cases TIMER_ENABLED IS defined:

• #define TIMER_ENABLED 0
• #define TIMER_ENABLED

• #define TIMER_ENABLED 1

The code inside #if defined(TIMER_ENABLED) will be executed

In this case TIMER_ENABLED IS NOT defined:

• //#define TIMER_ENABLED 0

The code inside #if defined(TIMER_ENABLED) will not be executed

Best regards,

Simon

[beemavishnu]

Thank you for confirmation

[a.vallejo]

I am having this same issue, porting the saadc_pcs10056e example to the ble_app_hts_pca10056e_s112 using SDK 15.3 and SES. I am trying to use TIMER1 since I have read that TIMER0 is used by the Soft device. Regardless of how I configure the sdk_config.h file, either using the legacy or nrfx timers, the associated timer definition block in the nrfx_timer.h fails to be enumerated. I have the configuration file exactly the same as in the saadc example, but for TIMER1, and it doesn't seem to work. Some help trouble shooting would be greatly appreciated.

[Simon]

I assume you mean this block:

enum {
.
.
.
#if NRFX_CHECK(NRFX_TIMER1_ENABLED)
    NRFX_TIMER1_INST_IDX,
#endif
.
.
.
};

• In order for NRFX_TIMER1_INST_IDX to be enabled, the macro NRFX_TIMER1_ENABLED has to equal 1
• If you look in apply_old_config.h, NRFX_TIMER1_ENABLED is set in the following manner:

#if defined(TIMER_ENABLED)
.
.
#if defined(TIMER1_ENABLED)
    #undef NRFX_TIMER1_ENABLED
    #define NRFX_TIMER1_ENABLED  TIMER1_ENABLED
#endif
.
.
.

• So you have to set both TIMER_ENABLED and TIMER1_ENABLED in the sdk_config.h file

Okay, I see now that I have just repeated my earlier answers. But could you start at nrfx_timer.h and go backwards, to see specifically where it fails. Is the if statement grayed out in nrfx_timer.h or in apply_old_config.h?

Best regards,

Simon