AVR-Chat

Memories :) I started on SC/MP for a few weeks while I waited on my 2650 
eval board. Then it was all 2650 for the next couple of years. I still 
have the board and manual to this day. That's back when we would 
actually write machine code and lookup the opcodes till I knew them by 
heart and calculate all the relative addresses etc. Since I didn't have 
a terminal I obtained a surplus keyboard matrix and etched an encoder 
board to talk serially at 300 baud to the 2650 monitor sitting in 1K of 
fusible-link PROM. The only output (if you didn't have a terminal) was a 
paper-tape status led by which you could with some practice work out 
whether the 2650 monitor program was happy so far as you typed the 
machine code in rather carefully.

Signetics 2650
8-bit 1Mhz 3us cycle time (3-9us/instruction!!)
32K addressing in 8K pages

Yes, the hardware certainly was safe and very definitely simple although 
the development environment was the complete opposite, but I managed to 
cut my teeth on micros with it. These days the hardware and software are 
complex but the development tools ease the pain immensely.

NOW, back on thread (but still off topic), I have studied the CYAN and 
CYANIDE with interest, the CPU reminds me of the 6502/65816 which I was 
very happy with although it's only 16-bits (spoiled on ARMs). But it's 
the mix of peripherals and packaging that grabs me. Presently I am 
evaluating LPC2888 amongst many others but the BGA is a bummer for protos.

Also, the cyanide ide and configurator look great making it so much 
easier to configure peripherals and assign I/O pins etc.

Surely someone has had some experience with this chip and I would like 
to hear about it although I think it might be better to continue the 
cyan thread in a more appropriate group like c.a.e perhaps.

BTW, I am also looking at PARALLAX's PROPELLER but that's a different story.

*Peter*



Don Ingram wrote:
> John Samperi wrote:
>> At 10:46 PM 2/05/2006, you wrote:
>>> Time to return to the safety & simplicity of the 2650's ;-)
>> For the ELITE few that know :-)
>>
> 
> "ELITE few"... My son would contend that that is just a euphemism for "grumpy 
> old fart" ;-)