i.MX ProcessorsのトピックHOW TO ACTIVE PWM AT RT1050

HOW TO ACTIVE PWM AT RT1050

Jimmywder03 — Thu, 01 Dec 2022 16:42:49 GMT

Hello,

Im using a SDK example called evkbmimxrt1050_pwm, so i get the 3 signals that the example made but when i want to add another pin , i does not work. I configured my pin firts in the configtools in the part called Pins, then in the code i add some lines like which PWM i want to use in my case is the number 2,then i also add some code to active the sub module number 3. I used the same things that the example use just i modified the number of sub module that i want to use and the channel. the output at the pin does not work but in the others is works well.

thanks for all.

Re: HOW TO ACTIVE PWM AT RT1050

EdwinHz — Tue, 29 Nov 2022 22:49:03 GMT

There is most likely an error with the configuration code you add for the 4th signal.

Instead of using Pins tool and adding the extra code manually, I recommend you to use the Peripherals tool, under ConfigTools, to set up the configuration of the PWM module as a whole with all of the signals you require. You should be able to do the setup of each submodule in a more straightforward manner, and make sure the setup of each submodule is the same. Here I added all 4 submodules by simply clicking the "+" button beside the "Submodules" section, and set up each as PWM.

BR,

Edwin.

Re: HOW TO ACTIVE PWM AT RT1050

Jimmywder03 — Thu, 01 Dec 2022 16:42:31 GMT

Hello Edwin,

I have tried that way and it does not work.

Look, first I created a new project and I add the PWM driver then I went to Peripherals tool and I actived it. After that at Peripherals tool I choose PWM2 to use it, then I used the same configuration that you showed me in the picture just I have different the pin that I want to test. I confirm that the pin that i want support PWM2 and it is Channel A submodule 3 (You will see in the picture that I set well that configuration). Then I load that project to my IMXRT1052 EVK I looked that pin to see the signal in the osciloscope and it does not work.

Thank you for you attandance.

Re: HOW TO ACTIVE PWM AT RT1050

Jimmywder03 — Thu, 01 Dec 2022 16:41:01 GMT