Hi Jan,,
have a look at
https://neu.forth-ev.de/wiki/res/lib/exe/fetch.php/vd-archiv:4d2018-02.pdf
There is a topic: Drehgeber i.e. rotary encoder.
Regards Martin
Am Samstag, 3. November 2018, 20:39:18 CET schrieb Jan Kromhout via
Amforth-devel:
> Hello,
>
> Has someone tried to get a rotar
Hello,
Has someone tried to get a rotary-encoder/switch running under amforth with
interupt0 ( conected on pin 2and 3) .
Or add a swich, and let it reacted with this interrupt.
Have tried with no succes.
Thanks for any help.
Cheers,
Jan
___
Hi,
Thanks all for the suggestions. After reload the timer after every interrupt it
is working great.
My leaving question is the word “f_cpu” in the code of Timer1.frt. When I
execute it I get two values on the stack.
What is the meaning of this two values?
Cheers,
Jan
Op 3 nov. 2018,
Hi Jan
I suggest that the ISR has to toggle the pin and re-load the timer1 counter.
>From memory timer1 counts upwards and once it overflows it just keeps
counting up from zero unless you re-load it.
Regards
Richard
On 11/3/18, Jan Kromhout wrote:
> Hi,
>
> I have taken the TIMER_1 example, an
I agree with that. I came to the same conclusion. Checked yesterday also the
code and found no action on this address.
Tristian gave me a hint, and I will try it.
Cheers,
Jan
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> I think some where in amForth TCNT1 is overwritten!
I can assure you, that there is no code in plain amforth
that overwrites your settings. It's either your code or
the hardware itself.
Matthias
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