Enable PWM in SDK Mesh 2.1.1 light_switch_example (server)

Question

Hi, I'm having troubles adding PWM in light_switch_proxy_server example in Mesh SDK v. 2.1.1. 
 It seems that the PWM driver and instances are not correctly enabled, looking at the nrfx_pwm.h: 
 And also looking at the nrfx_pwm.c , where everything looks disabled: 
 Steps I have done: 
 1. Included header file "nrf_drv_pwm.h" in main.c 
 2. Edited Project Options -> Preprocessor with the path to the needed header files: $(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/integration/nrfx/legacy 
 $(SDK_ROOT:../../../../nRF5_SDK_15.0.0_a53641a)/modules/nrfx/drivers/include

3. Added to the project (into the folder nRF5 SDK) the file "nrfx_pwm.c"

4. Enabled the PWM peripheral driver and PWM0 instance in the sdk_config.h: 
 
 #ifndef NRFX_PWM_ENABLED
#define NRFX_PWM_ENABLED 1
#endif

#ifndef NRFX_PWM0_ENABLED
#define NRFX_PWM0_ENABLED 1 
 
 I have done the same steps successfully for the light_switch_server (NO proxy) in Mesh 2.0.1, so I don't know what I'm missing now... Is there any other file that needs to be edited to enable PWM? 
 Or there is any way to find out which file NRFX_CHECK() is looking at? 
 Regards, Paulo Zacarias

Paulo.Zacarias · Accepted Answer

I finally found the solution here . I completely removed code section that as the reference to the legacy driver, PWM_ENABLED, in sdk_config: // <e> PWM_ENABLED - nrf_drv_pwm - PWM peripheral driver - legacy layer
//==========================================================
#ifndef PWM_ENABLED
#define PWM_ENABLED 0
#endif 
 It seems that for some reason sdk_config.h doesn't show up in the dependencies of main.c on Mesh SDK 2.0.1 proxy_server example: But it does for 2.1.1 and 2.2.0, maybe that's the reason why this issue only showed up in this newer releases. BR, Paulo Zacarias

Enable PWM in SDK Mesh 2.1.1 light_switch_example (server)

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