Re: [Amforth-devel] Interrupt handling question

[Matthias T. <mt...@we...>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hans,

Hans H=FCbner wrote:

> I tried my display stuff with the trunk version, but it still crashes
> once I unmask the interrupt.  I am using an atmega32 on an STK500,
> maybe something is wrong with the definitions for that CPU?  What CPU
> type do you test with?

atmega32 @ 16 MHz

variable cnt0
0 cnt0 !
: inccnt0 1 cnt0 +! ;
' inccnt0 0B int!

works fine even for TCCR0 set to 1 (prescaler 64).
> 1 TIMSK c!
 ok
> TCCR0 c@ .
 4 ok
> : s1 10 0 do cnt0 @ . loop ;
 ok
> s1
 39AA 39AB 39AC 39AD 39AE 39B0 39B1 39B2 39B4 39B5 39B6 39B7 39B9 39BA
39BB 39BC
 ok
> 1 TCCR0 c!
 ok
> s1
 -106D -D1B -A53 -78C -4C5 -1FE CA 28E 4DA 728 973 BBE E0E 105C 1334 160A=
 ok

At that speed even the compiler works for a hello-world word..

I'd suspect your refresh-display code...

Bye
Matthias
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iD8DBQFGNuK29bEHdGEMFjMRAlY9AKDZCjlX7Ax1fbDj/J1Uh8kfSSqmwACcCSRT
+NlR4ZJsjw3pWWfLTCLKtME=3D
=3DrARo
-----END PGP SIGNATURE-----