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Super Contributor
rogerk8
Posts: 165
Registered: ‎05-28-2011
0

Re: Design review of Roger's board schematic

K6 comes from the extremely hopeful, but not likely, case that my CPU ever will work but in that case I may add for instance a keyboard signal just by putting IC18 outputs in three-state. For a while there I was thinking of incorporating a 16X8 MUX but I am not that confident that this will ever work. Just trying my best and keeping it simple :-)

 

Best regards, Roger

Super Contributor
rogerk8
Posts: 165
Registered: ‎05-28-2011
0

Re: Design review of Roger's board schematic

Hi kind folks!

 

Today I got the opportunity to configure iMPACT for our main product. While I was doing this I of course tried to add my own *.jed file. I thought this was going to be easy but it was not. Not until I learned that you really had to add it alone. I preliminary just added it to the available file list and iMPACT just ignored it. But when I finally addded it alone it actually worked. I don't know if this means that it will work in the future but I am confident that it actually will. So right now I am really happy :-)

 

This hardwiring idea has gotten me inspired. Due to me requiring lots of LEDs I have come to the conclusion that I will make use of red LEDs for the first hex nibble and green LEDs for the next and so fort. I know that the current availability isn't the best. So I have decided to use only 1mA per LED. And today I ordered a couple of samples for low current LEDs which I will solder into old faschioned component adaptors where I can make use of the hardwiring tool.

 

I don't know if you know what I mean but I just want to keep you updated that my pet project is progressing.

 

Take care!

 

Best regards, Roger