Search found 5 matches

by cgudrian
Sat Nov 01, 2014 10:46 am
Forum: ChibiOS/RT
Topic: Tickless mode implementation
Replies: 17
Views: 6801

Re: Tickless mode implementation

Hi, Giovanni!

Thanks for the quick response. Now everything makes sense. :)

Have a nice weekend,

Christian
by cgudrian
Sat Nov 01, 2014 9:40 am
Forum: ChibiOS/RT
Topic: Tickless mode implementation
Replies: 17
Views: 6801

Tickless mode implementation

Hello!

Does the tickless mode still use a periodic timer? At least the STM32F4 implementation looks like it does (it uses TIM2). If so what's the difference between the traditional SysTick approach? Or am I perhaps misinterpreting the code?

Christian
by cgudrian
Sat Dec 28, 2013 2:52 pm
Forum: General Support
Topic: Calling non-normal class functions from normal state
Replies: 3
Views: 1150

Re: Calling non-normal class functions from normal state

Hi, Giovanni!

Thanks for the reply. I've read the kernel concepts chapter before posting. Having read it yet again I must confess that I must have skipped over the relevant part right at the top of the page. Mea culpa!

Christian
by cgudrian
Sat Dec 28, 2013 10:44 am
Forum: General Support
Topic: Calling non-normal class functions from normal state
Replies: 3
Views: 1150

Re: Calling non-normal class functions from normal state

Hi!

I've just found out the answer myself:

Use of S-class or I-class APIs outside a proper lock state.


(from "Common Mistakes")
by cgudrian
Sat Dec 28, 2013 10:07 am
Forum: General Support
Topic: Calling non-normal class functions from normal state
Replies: 3
Views: 1150

Calling non-normal class functions from normal state

Hi!

While calling normal class functions is only allowed from normal state, what about non-normal class functions? Do they have to be called exclusively from their non-normal state or may they be called from normal state as well?

Christian

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