Digital Signal ControllersのトピックRe: 56F84789 PWMB

56F84789 PWMB

saideliu — Fri, 21 Apr 2017 03:30:55 GMT

Hello. I have a question about 56F84789. When I use 56F84789, I configure the bean PWMMC to generator PWMA and PWMB in Codewarrior. However, I can observe PWMA signal ,but I cannot find PWMB signal. If there are some differences between PWMA and PWMB.Thank you.

Re: 56F84789 PWMB

xiangjun_rong — Tue, 25 Apr 2017 06:14:25 GMT

Hi, Liu,

The main difference of PWMA and PWMB is that the PWMB does not support nano-edge placement feature, the PWMA module supports the nano-edge placement feature. For the other feature, they are the same.

If you still have issue, pls post your project so that we can have a review.

Re: 56F84789 PWMB

saideliu — Tue, 25 Apr 2017 11:42:24 GMT

Hi！Rong.

I add the project in the attachment. And I found that the register PWMB_FSTS0 =0x0800.

I think the bean that configures PWMB may have some mistakes, pls look at the project and find the cause or give a project that uses bean configures PWMB.

Hoping for your reply.

Re: 56F84789 PWMB

xiangjun_rong — Wed, 26 Apr 2017 07:17:47 GMT

Hi,

I have checked the PE configuration, a lof items are not set. I help you set all the PE configuration, now it is okay.

You can check the PWMB signals from GPIOG0,GPIOG1,GPIOG2,GPIOG3 and GPIOE8 and GPIOE9 pins, if you have TWR-8400 board, you can test the pin4,6,21,22,23,24 of J503 connector.

I attach the project which is based on your project.

Xiangjun Rong

Re: 56F84789 PWMB

saideliu — Wed, 26 Apr 2017 13:41:51 GMT

Thank you for your help. According to the project you attached, I found that Fault channel is configured by no instead of yes. Then I changed the configuration, PWMB worked.Thank you again.