'NRFX_PWM0_INST_IDX' undeclared here (not in a function); did you mean 'NRFX_PWM_INSTANCE'?

[fab]

I am integrating PWM into my project which uses SDK_15.2.0.

My config.sh contains:

#define NRFX_PWM_ENABLED 1

#define NRFX_PWM0_ENABLED 1

and I have included nrfx_pwm.c.

Compiling the project I get this error:

'NRFX_PWM0_INST_IDX' undeclared here (not in a function); did you mean 'NRFX_PWM_INSTANCE'?

Trying to sort this problem out, I realized that the nrfx_pwm.c is completely grayed out. It starts with:

#if NRFX_CHECK(NRFX_PWM_ENABLED)
....

 Hence, apparently NRFX_PWM_ENABLED is not defined.

How do I fix this?

[Simonr]

Hi Fabrizio

What do you mean by "grayed out"? Have you added all header files necessary for nrfx_pwm.c to your project?

Best regards,

Simon

[fab]

Hi Simonr,

I mean that SES shows the code grayed and AFAK this means that it's not compiled because NRFX_PWM_ENABLED is not defined.

I don't know if I have included all header files required for nrfc_pwm.c. Which are they?

Thank you.