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Thanks for this post RetroTechie.
I read those forum posts with great interest and saved it in my files, thanks. On power sequencing, do you mean to say that you need to do something like set all 5v I/O lines low (0v) until the 3.3v power supply comes up and gets stable?
In order for me to...
Thanks for taking so much time for the lengthy reply, RetroTechie.
I should first clarify something I said before about "engineers/companies overseas".
That was only coming from experiences I've had in the last three weeks.
It isn't directed at anyone born outside the US with an interest in...
Std_match, thanks for the reply and for answering on the Altera suggestion above.
You mentioned the Xilinx Spartan 3AN FPGA family. The engineer I mentioned to already be working on a different card for me suggested that Xilinx Spartan 3AN FPGA family as well, he has a development board for it...
Sorry to vanish from my own thread for a week! I had too many projects boiling over last week. I really appreciate all the responses here, and all the input from everything.
I should explain a few things.
First:
I am trying to get started on this project four ways at once.
The four ways...
Here is a photo of the first board as an example of what the cards are. This is one of the more complex of the 17 that need to be converted to programmable logic.
Hi guys, thanks for the great responses.
A quick side question to discuss, as noted before, this doesn't have any protected or custom chips, and only one ASIC, a TMS2793 floppy disk formatter/controller.
Can the TMS2793 be somehow replaced with programmable logic?
I'd assume that it is...
Thanks for the reply std_match.
Located in California.
I didn't add this, but I knew all along it wasn't going to literally fit in a single chip, because it has a few of the tiny 64-bit RAM chips, and two of the other cards (to be done later) have the 2114 1,024 x 4 bit static RAM chips (which...
Is there someone here who can be hired do small projects involving programmable logic?
Specifically, I need to have old cards (2-sided boards, 30+ years old) of low speed simple logic +5v digital cards redesigned into single chip solutions, basically taking each card of 30-40 logic chips (7438...
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