NRFX_TIMER3_INST_IDX' undeclared (first use in this function), SDK enabled

RE: NRFX_TIMER3_INST_IDX' undeclared (first use in this function), SDK enabled

Karl Ylvisaker — Wed, 31 Mar 2021 07:36:25 GMT

Hello,

Thank you for your patience with this - we are short staffed due to the national easter holidays here in Norway.

[quote user="StevenW807"]Step 1) For the error "NRFX_TIMER3_INST_IDX' undeclared (first use in this function)", my solution is: in sdk_config.h, I enabled both "TIMER#_ENABLED" and "legacy TIMER#_ENABLED".[/quote]

If you have left the apply_old_config file unchanged, this would mean that NRFX_TIMER_ENABLED is redefined to 0, since you also define TIMER_ENABLED

[quote user="StevenW807"](Because I shouldn't delete the below red box code).[/quote]

I agree, you definitely should not have to delete the offending section - this is often just deleting the symptoms of the real issue.

[quote user="StevenW807"]I simply deleted the code in the red box (see below image). I guess it's because I accidentally deleted some timer 3 code elsewhere.[/quote]

In general I would have to say that this approach is a short-term solution.
Are you speculating whether you might have deleted code accidentally elsewhere, or are you stating that you have accidentally deleted code elsewhere?
I would recommend that you redownload the SDK, to make sure you have a functional and complete version. The code you might have deleted could break other functionality in the SDK.

Could I ask you to remove the legacy definitions of TIMER_ENABLED and TIMER#_ENABLED all together from your sdk_config, and see if this changes the issue of the greyed out sections?
As in, do not just change their definition to 0 (that will still leave them defined to 0), but either comment them out, or remove them entirely from the file.
Do this, and see if the greyed out NRFX_CHECK is no longer grayed out, after cleaning the build and rebuilding the project.

Best regards,
Karl

RE: NRFX_TIMER3_INST_IDX' undeclared (first use in this function), SDK enabled

StevenW807 — Thu, 25 Mar 2021 23:05:45 GMT

Thanks, Karl.

I tried your method, unfortunately, the problem didn't solve. Here is how I solved the issue today by 2 steps:

Step 1) For the error "NRFX_TIMER3_INST_IDX' undeclared (first use in this function)", my solution is: in sdk_config.h, I enabled both "TIMER#_ENABLED" and "legacy TIMER#_ENABLED".

// <e> NRFX_TIMER_ENABLED - nrfx_timer - TIMER periperal driver
//==========================================================
#ifndef NRFX_TIMER_ENABLED
#define NRFX_TIMER_ENABLED 1
#endif
// <q> NRFX_TIMER0_ENABLED  - Enable TIMER0 instance
 

#ifndef NRFX_TIMER0_ENABLED
#define NRFX_TIMER0_ENABLED 1
#endif

// <q> NRFX_TIMER1_ENABLED  - Enable TIMER1 instance
 

#ifndef NRFX_TIMER1_ENABLED
#define NRFX_TIMER1_ENABLED 1
#endif

// <q> NRFX_TIMER2_ENABLED  - Enable TIMER2 instance
 

#ifndef NRFX_TIMER2_ENABLED
#define NRFX_TIMER2_ENABLED 1
#endif

// <q> NRFX_TIMER3_ENABLED  - Enable TIMER3 instance
 

#ifndef NRFX_TIMER3_ENABLED
#define NRFX_TIMER3_ENABLED 1
#endif

// <q> NRFX_TIMER4_ENABLED  - Enable TIMER4 instance
 

#ifndef NRFX_TIMER4_ENABLED
#define NRFX_TIMER4_ENABLED 1
#endif



// ==============================================



// <e> TIMER_ENABLED - nrf_drv_timer - TIMER periperal driver - legacy layer
//==========================================================
#ifndef TIMER_ENABLED
#define TIMER_ENABLED 1
#endif
// <o> TIMER_DEFAULT_CONFIG_FREQUENCY  - Timer frequency if in Timer mode
 
// <0=> 16 MHz 
// <1=> 8 MHz 
// <2=> 4 MHz 
// <3=> 2 MHz 
// <4=> 1 MHz 
// <5=> 500 kHz 
// <6=> 250 kHz 
// <7=> 125 kHz 
// <8=> 62.5 kHz 
// <9=> 31.25 kHz 

#ifndef TIMER_DEFAULT_CONFIG_FREQUENCY
#define TIMER_DEFAULT_CONFIG_FREQUENCY 0
#endif

// <o> TIMER_DEFAULT_CONFIG_MODE  - Timer mode or operation
 
// <0=> Timer 
// <1=> Counter 

#ifndef TIMER_DEFAULT_CONFIG_MODE
#define TIMER_DEFAULT_CONFIG_MODE 0
#endif

// <o> TIMER_DEFAULT_CONFIG_BIT_WIDTH  - Timer counter bit width
 
// <0=> 16 bit 
// <1=> 8 bit 
// <2=> 24 bit 
// <3=> 32 bit 

#ifndef TIMER_DEFAULT_CONFIG_BIT_WIDTH
#define TIMER_DEFAULT_CONFIG_BIT_WIDTH 0
#endif

// <o> TIMER_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 TIMER_DEFAULT_CONFIG_IRQ_PRIORITY
#define TIMER_DEFAULT_CONFIG_IRQ_PRIORITY 6
#endif

// <q> TIMER0_ENABLED  - Enable TIMER0 instance
 

#ifndef TIMER0_ENABLED
#define TIMER0_ENABLED 1
#endif

// <q> TIMER1_ENABLED  - Enable TIMER1 instance
 

#ifndef TIMER1_ENABLED
#define TIMER1_ENABLED 1
#endif

// <q> TIMER2_ENABLED  - Enable TIMER2 instance
 

#ifndef TIMER2_ENABLED
#define TIMER2_ENABLED 1
#endif

// <q> TIMER3_ENABLED  - Enable TIMER3 instance
 

#ifndef TIMER3_ENABLED
#define TIMER3_ENABLED 0
#endif

// <q> TIMER4_ENABLED  - Enable TIMER4 instance
 

#ifndef TIMER4_ENABLED
#define TIMER4_ENABLED 0
#endif

// </e>

Step 2) For the error "in nrfx_timer.c file. Timer3 section is the only part that is NOT greyed out. " I simply deleted the code in the red box (see below image). I guess it's because I accidentally deleted some timer 3 code elsewhere. I will share the answer with you if I could find it (Because I shouldn't delete the below red box code). But if you have any idea, please share your answer, too. Thank you very much!

RE: NRFX_TIMER3_INST_IDX' undeclared (first use in this function), SDK enabled

Karl Ylvisaker — Thu, 25 Mar 2021 13:05:11 GMT

Hello,

Have you defined both the legacy and NRFX TIMER definitions?
If you leave the legacy TIMER#_ENABLED defined in your SDK config, it will overwrite your NRFX definition.
Please make sure that only the NRFX_TIMER#_ENABLED is defined, and none of the TIMER#_ENABLED are defined, and see if this resolves the issue.
For a more in-depth discussion of this apply_old_config issue, please see this ticket.

If this does not resolve the issue, could you share your entire sdk_config file?

Best regards,
Karl