Kinetis MicrocontrollersのトピックTimers of less than 1 ms

Timers of less than 1 ms

feraro — Wed, 08 Aug 2012 23:56:33 GMT

Hello.

How could obtain Timers less than 1 millisecond and MQX TWR60N512 7.1?.

Thanks

Re: Timers of less than 1 ms

konrada — Thu, 09 Aug 2012 03:37:53 GMT

You can use the PIT, programmable interval timer.

Re: Timers of less than 1 ms

feraro — Thu, 09 Aug 2012 16:53:18 GMT

Thank you very much for the idea, but I'm new to MQX and can not understand how to use a PIT. What I need is to create a pulse train by pin PORTE PIN10 of 0.1 msec period.

Thanks for everything.

Re: Timers of less than 1 ms

konrada — Thu, 09 Aug 2012 21:17:56 GMT

If you want to toggle an output pin that fast, try the FTM, which does PWM.

The Reference Manual for your chip will tell you if port E10 can be connected to some FTM channel. If not, you can toggle a GPIO pin in software from a PIT interrupt, but that incurs jitter.

Re: Timers of less than 1 ms

feraro — Fri, 10 Aug 2012 15:57:18 GMT

Hey.

I've definitely got it working with the PIT.

Thank you very much for everything.