Processor Expert SoftwareのトピックLow Power Wakeup using TSI in PEx

Low Power Wakeup using TSI in PEx

javervalino — Tue, 10 Jun 2014 13:00:55 GMT

Hi All,

Can anyone share a kinetis example on how to use tsi as interrupt when wakeup from any of the lowpower modes using a processor expert? Cant find a good example yet.:smileysad:

Thanks in advance..:smileyhappy:

Re: Low Power Wakeup using TSI in PEx

adriancano — Tue, 10 Jun 2014 20:45:43 GMT

Hi,

Which device or board are you using?

Regards,

Re: Low Power Wakeup using TSI in PEx

javervalino — Wed, 11 Jun 2014 07:39:51 GMT

Hi Adrian,

Thanks for your reply.

Im using a kl25z freedom board. I saw some examples in tss, but its not using a processor expert.

Hope someone has an example.:smileyhappy:

Thanks.

Re: Re: Low Power Wakeup using TSI in PEx

adriancano — Wed, 11 Jun 2014 15:54:23 GMT

Hi,

There is a errata with the TSI using Low Power modes.

e5515: TSI: The end of scan flag is not automatically cleared when continuously

scanning

Description: The TSI requires the end of scan flag (TSIx_GENCS[EOSF]) to be cleared after each scan.

This prevents the out of range interrupt from being available in continuous scanning as each

scan needs the TSIx_GENCS[EOSF] bit to be cleared by software. This limits the TSI from

providing an optimal low power wake-up capability.

Basically it is that the KL25 can not be woken up via TSI. Probably this affect the requirements of your project, if not, the workaround shown in the errata document could be implemented.

Errata documentation:

http://cache.freescale.com/files/microcontrollers/doc/errata/KINETIS_L_1N97F.pdf?fasp=1&WT_TYPE=Errata&WT_VENDOR=FREESCA…

Best regards.

Re: Re: Low Power Wakeup using TSI in PEx

javervalino — Thu, 12 Jun 2014 12:47:23 GMT

Hi Adrian,

How about using it in another mcu, let say kl15 etc? Basically, I just want to have an idea how to implement such interrupt using processor expert, not necessarily using it only in kl25. So any example using any mcu, as long as it is done in PEx would be a great help.. :smileyhappy:

Thanks again Adrian..

Re: Re: Re: Low Power Wakeup using TSI in PEx

adriancano — Fri, 13 Jun 2014 23:50:30 GMT

Hi,

Here is an example for the KL46. In this example the core is moved to VLPR (Very Low Power Run) mode via the interrupt of the SW1 and you can send it back to normal run mode touching the slider; a led is constantly blinking and you can see that when the core is moved to VLPR the led blinks slower, this is because that in VLPR the max frequency is 4MHz.

I hope this information can help you.

Regards,

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Re: Re: Re: Low Power Wakeup using TSI in PEx

javervalino — Sat, 14 Jun 2014 03:16:38 GMT

Hi Adrian,

Cant find any attachment..

Thanks..

Re: Low Power Wakeup using TSI in PEx

javervalino — Sat, 14 Jun 2014 09:01:58 GMT

This is very helpful Adrian..

Thanks a lot..:smileyhappy:

Re: Re: Re: Low Power Wakeup using TSI in PEx

javervalino — Sun, 14 Sep 2014 13:43:23 GMT

Hi Adrian,

Your example was very helpful for me. Can you also give an example how to wakeup from lls using tsi. I really dont know how to configure it in Processor Expert.

Im using kl15 for this project. I hope you can help me.

Thank you and best regards,

Javer

Re: Re: Re: Low Power Wakeup using TSI in PEx

PabloBaena — Tue, 23 Feb 2016 22:21:39 GMT

Hi Adrian,

Please could you give us details on version of KDS that was used for the project, also other needed settings for building binary. I've tried with KDS 2.0.0 and KDS 3.0.0 but is not even launching compile process. Thanks in advance, Pablo.

Re: Re: Re: Low Power Wakeup using TSI in PEx

adriancano — Wed, 24 Feb 2016 16:27:22 GMT

Hi Pablo,

The code was developed for CW 10.6 using Processor Expert.

Hoe this helps.

Regards,

Adrian Sanchez Cano