Pwm Driver not work at board PCA10036

[chenyu]

I want use pwm driver to generate 8 channel pwm wave with nrf52832， My board is PCA10036. I use example “nRF5_SDK_11.0.0_89a8197\examples\peripheral\pwm_driver\pca10040\arm5_no_packs”and change board to PCA10036 in options for target. After download, It can't work at all. Can you explain why?

[Einar Thorsrud]

The PCA10036 is a nRF52 Preview DK with engineering sample nRF52. If you have the first version of the PCA10036 is has the Engineering A revision, which did not have a functional PWM peripheral (nRF52 erratum 2). I recommend you to obtain a final nRF52 DK, which has this and a number of other errata fixed.

[chenyu]

Is there any changes on pins? Can I solve the program if I replace the chip with a new version nrf52832

[Einar Thorsrud]

Yes, you can replace the Engineering sample nRF52 on the DK with a production (revision 1) version of the nRF52. Also note that you can generate a PWM signal using a timer, PPI and GPIOTE using the PWM library, though it is less capable than the PWM peripheral and use more chip resources.