PWM setup on the NRF52DK

RE: PWM setup on the NRF52DK

user98052 — Fri, 27 May 2022 04:41:19 GMT

Hi MuRa,

[quote userid="113599" url="~/f/nordic-q-a/88324/pwm-setup-on-the-nrf52dk/369666#369666"]If I understood you right, do I have to write that manually into the sdk_config.h?[/quote]

Yes, you are right here. We have to add manually into the SDk_config.h file.

If you check on the nrfx_pwm.c source file you can see like,

#if NRFX_CHECK(NRFX_PWM_ENABLED)

All the functions inside the driver file can be used if this macro is enabled in the config.h file like following

#ifndef NRFX_PWM_ENABLED
#define NRFX_PWM_ENABLED 1
#endif

Similarly, I guess there are a few other macros also need to be inside this same config file for the proper working

RE: PWM setup on the NRF52DK

user113599 — Thu, 26 May 2022 11:43:25 GMT

Hello Jeavan R Raj

Thank you, I have managed to add the "nrfx_pwm.c" into the nRF_Drivers" folder, so far so good.

[quote userid="98052" url="~/f/nordic-q-a/88324/pwm-setup-on-the-nrf52dk/369661#369661"]For adding the PWM support to our project, we have to add those required configurations into our project's sdk_config.h file as well as to add corresponding files to the project.[/quote]

If I understood you right, do I have to write that manually into the sdk_config.h?

For example, although the nrfx_pwm.c is now evident in the drivers' folder, I cannot enable the PWN driver via the CMSIS configuration via the right-click on the Application folder ... I guess I should be able to enable the driver over there or I will have to manually write the setup into the SDK configuration or I do not need to worry about enabling the PWM driver this way, but just to write it into the SDK Config file?

Best.

RE: PWM setup on the NRF52DK

user98052 — Thu, 26 May 2022 11:08:50 GMT

Hi MuRa,

I have worked on the nrf52 chip, Where the PWM signals can be routed to all the GPIO pins I believe.

For adding the PWM support to our project, we have to add those required configurations into our project's sdk_config.h file as well as to add corresponding files to the project.

[

From the project explorer, right-click and select the add existing files, navigate and select the pwm driver, so that we can use the PWM SDK functions into our project.

nRF5_SDK_17.0.2_d674dde/modules/nrfx/drivers/src/nrfx_pwm.c

]