simple PWM example for KL1x ?

johnbeale — Fri, 30 Oct 2015 22:19:04 GMT

New to Kinetis. I am using KDS 3.0.0 and KSDK 1.2.0, with Processor Expert 3.0.1. My target is in the MKL1x family.

So far I can name and configure output pins, and control them with GPIO_DRV_SetPinOutput() and GPIO_DRV_ClearPinOutput(). I am hoping there is something at a similar level for PWM, so that for example, after using TPM0:Init_TPM in Processor Expert to configure the timer (setting clock source, modulo count, pin output for each channel, etc.) , there is some call like PWM_SetDuty(timer, channel, value) to set the duty cycle. Can I do that?

The only Kinetis code examples I have found online do not use Processor Expert, or use some (older?) version that apparently has a PWM module. This page Tutorial: PWM with Processor Expert | MCU on Eclipse shows PE has a PWM module, but nothing with "PWM" in the name appears in PE for me.

I found this: Example code on how to configure the TPM as PWM in the FRDM-KL25 board

which uses set_TPM_CnV(TPM1_BASE_PTR, 0, DUTY_CYCLE); but is this function documented anywhere? Google says there is exactly one web page online containing "set_TPM_CnV" and it's in Czech... Any assistance would be welcomed! Thanks.

Re: simple PWM example for KL1x ?

xiangjun_rong — Mon, 02 Nov 2015 07:06:53 GMT

Hi, John,

This is the code for TPM module based on KL02Z. You can refer to it. Hope it can help you.

XiangJun Rong

Re: simple PWM example for KL1x ?

bgraham — Fri, 19 Oct 2018 22:42:11 GMT

I found a demo "simple_pwm" that the uses the PWM with the board's LEDs

Thanks for the help.

Bruce

Kinetis Microcontrollers中的主题 simple PWM example for KL1x ?

simple PWM example for KL1x ?

Re: simple PWM example for KL1x ?

Re: simple PWM example for KL1x ?