At 02:15 PM 9/15/2004, Ake Hedman wrote:

>Dave VanHorn wrote:
>
>>>Funny. My first project after leaving university was a credit card terminal. It was built around a Motorola 6809 and used OS/9. Great stuff. I have written a lot of assembler for the 68xx series. Before that the 6502 was my baby. I really liked that processor. 
>>Which one?  I don't remember a 6809 based system. 
>
>It was called cash. It was sold in Sweden and the Nordic Countries late 1984 and onwards.

Mine was called Verifone. (Zon, Zon Jr, XL, Tranz etc)


>I coded a couple of modems after I did the credit card terminal. This was on a 6805 (Motorola/Hitachi) with very little ram. Most positions had to be used for different things in different states. A lot of balls to keep in the air at the same time. I seldom have that kind of problems anymore. In my current project I use an 18F258 and have problems to fill the flash up to half. The price difference down to an 18F248 is so low that it does not matter if I use the 258.  And RAM is an ocean...

I do think that it's best to start out in assembler, so you know what you're asking the machine to do.. 

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