Tickless FreeRTOS

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hassan789
Posts: 136
Joined: Thu Jun 29, 2017 2:15 am

Tickless FreeRTOS

Postby hassan789 » Thu Jun 29, 2017 2:33 am

Hi ESP community,
Is there any plans to support tickless operation of freertos in the IDF?
Or any specific pointers I can follow to implement light-sleep or tickless in IDF 2.1?

Thanks :D

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kolban
Posts: 1683
Joined: Mon Nov 16, 2015 4:43 pm
Location: Texas, USA

Re: Tickless FreeRTOS

Postby kolban » Thu Jun 29, 2017 3:41 am

What does "Tickless FreeRTOS" mean?
Free book on ESP32 available here: https://leanpub.com/kolban-ESP32

WiFive
Posts: 2056
Joined: Tue Dec 01, 2015 7:35 am

Re: Tickless FreeRTOS

Postby WiFive » Thu Jun 29, 2017 4:29 am

What does "Tickless FreeRTOS" mean?
http://www.freertos.org/low-power-tickless-rtos.html

ESP_Sprite
Posts: 1994
Joined: Thu Nov 26, 2015 4:08 am

Re: Tickless FreeRTOS

Postby ESP_Sprite » Thu Jun 29, 2017 6:45 am

We'll probably take a look at tickless around the time we'll be implementing light sleep, which is scheduled before 3.0. You can try enabling it in the FreeRTOS config yourself, but I'm not sure if it plays nice with the changes we did to get multicore-support.

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hassan789
Posts: 136
Joined: Thu Jun 29, 2017 2:15 am

Re: Tickless FreeRTOS

Postby hassan789 » Mon Jul 03, 2017 3:44 am

I'll let the pros look at the tickless + dual core support :)

For my use case (and probably most folks) tickless support (even with 1 core) would allow me to make designs that would last for 6-12months

Keep up the amazing work ESP/IDF teams

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hassan789
Posts: 136
Joined: Thu Jun 29, 2017 2:15 am

Re: Tickless FreeRTOS

Postby hassan789 » Tue May 22, 2018 4:08 am

looks like this was merged! will test and provide feedback!
:D :D :D

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