Re: [Amforth-devel] Set hook from word / Timers / Praise!

[<ha...@hu...>]

Am 13.03.07 schrieb Hans H=FCbner <ha...@hu...>:
> For fun, I have connected a four digit 7 segment display to my
> ATMEGA32 running at 16 Mhz.  The display is multiplexed in two pairs,
> so I need to refresh fast enough to get a stable display.  To do so, I
> use TIMER0 with the overflow interrupt mapped to vector three.  I
> prescale the timer by 256, thus my interrupt handler is called at
> about 240 Hz.  It just works.  Also, I have observed no anomalies
> working in immediate mode while my display refresh was active, so I
> could still compile works.  What a gas!  Great stuff :)

Just an observation:  While compiling, the display flickers.  It seems
that IRQs are being disabled during flash programming, which is a good
thing.  Other than that, the timer driven refresh code has now been
running for several hours without a hitch.

-Hans