[ts-7000] Re: T3 and T4 timers - What are they?

["al" <>]

I do this routinely on a TS-7500 by using a high-priority thread that does 
nothing but execute a loop that calls nanosleep() (standard Posix API) and then 
calls a short routine.  If you need tight control over jitter, consider using a 
hardware solution.  (Standard Linux is NOT a real-time operating system.)

HTH

--- In  "burnsmicro" <> wrote:
>
> In the absence of a Periodic Timer interrupt, I need something to take the 
> place of a pit_isr() to periodically trigger the execution of a short 
> function at a frequency of between 50 and 100 Hz. Thge actual frequency is 
> not so important as the accuracy of the frequence. Even that could be 
> adjusted against the date/time.
> 
> There are lots of posts on the ts-7000 list relating to fine grain timing 
> issues. There are several mentions of T3 and T4 timers and in one of them, 
> Jim Jackson mentions "Phil's driver can sample at 8KHz, and it is good enough 
> for sound sampling". 
> 
> Can anyone point me to what a T3 and a T4 timer is? There is a file, 
> T4ticks.c, in the Files section of this List, which appears to exercise the 
> T4 timer, but it assumes knowledge of the T4 timer or a tremendous act of 
> faith.
>




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