Hi,

- And you've done a very tidy job with the board you built to trap A8 - A15 -- I'm sure it's a pleasure to use.

This was the first version.
I made an extension for 16-bit PC and Data address trapping and reading the data
with HEX-coding switches and added TIL 311 HEX- Displays:

A switch ...

Hello,

--Welcome, Dieter, and thanks for telling us about your work. Considering that you never experimented with microprocessors until now, it's quite impressive to hear about the changes to baud rate, address decoding, clock rate, the video, the EPROM complement and so on!

If you consider the ...

Hi Jeff,

Yes, there are lots of photos. What's the maximum of pictures in one post in 800x600 format?

For starting some older photos:

C5_001.JPG

C5_206.JPG

C5_305.JPG

C5_418.JPG

C5_605.JPG

C5_606.JPG


That's for the moment, I will make new photos to show the current status of ...

I forgot to mention that I worked on the video EPROM.
Henri Keinonen (Ketturi electronics) made a reverse engineering on an EMCO CNC Videoboard.
He changed the EMCO specific character set (only capital letters normal/inverse and special characters) to ASCII character set.
He made also a complete ...

Thanks Andrew,

Yes I want the 65c802, if possible 2x, I need one for the development board and the second for the lathe.

But to experiment with 16 bit I can start with only one 802 and switch later to 816 for the lathe, the code would be the same.
Please tell me for price and payment/shipping ...

Thanks for the fast reply,

I bought recently the book "Programming the 65816" and there is a lot of info.
In a first step I should use the 816 and modify the arithmetic routines to 16 bit, for the block moves I hope to speed up
about factor 3 (I have not yet decoded all memory moves).
As you said ...

Hello,


My name is Dieter and I live in Luxembourg, Europe.
Since childhood I was interested in electric and electronics, but I never experimented with microprocessors until now.

Often I visited this site without being member and used some code, so it's time to share my project too.

I bought a ...