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KAYPRO and KayFreHD as a hard disk module

I only have one eprom left blank (no uv eraser at this time). I dont want to burn the same thing again and make another dud.
 
VERAULT said:
This is the eprom I used. Could it be an incompatibility issue? View attachment 60173
Click to expand...

Did you verify the contents by reading it back after programming? One thing that comes to mind is that your programmer may not be using the correct voltage and/or algorithm for the SST part. For example, 2764 != 2764A. My programmer has a distinct setting for the 'A' part. Another possibility is that perhaps 200ns isn't fast enough (although that's a long shot).
 
You might have said earlier, but what kaypro model do you have?

Also, you should buy some eeproms (28s vs 27s) as you can reprogram those without uv eraser.. good for testing and then can use the cheaper eproms after you're sure everything is working.
 
sure, look in the upper left corner 1.png

then I verify2.png

Just to set my mind at ease. With the kayplus ROM on a kaypro 4/84 with a universal board. All Ihave to do is drop it in and boot to the new bios right?

EDIT:
I found 4 more m2764 blanks roms in a box. I am going to try another burn. I downloaded the KPLUS84.ROM I selected the correct eprom in the minirpro program. Verified its blank. I opened the ROM. First question. It usually looks for a .bin or .hex.. this is a .ROM is that ok?
Secondly which options do I choose on this? 111.png


Edit2 here is a photo of my mainboard: 444.jpg
 
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VERAULT said:
Can anyone verify if these settings are correct? I don't want to burn another Dud.
Click to expand...

The KayPlus images are binary, so you have that setting correct. I see no obviously bad settings anywhere. All the usual suspects (origin, file type, programming voltage, etc.) seem to be as expected. You did check carefully to ensure that none of the EPROM pins were accidentally folded under during insertion?
 
Yes i did check the pins. I would adsume if they were bent the burn would have fsiled or it would fail verification. Both said "success"
 
Since you already verified your eprom flash, i'm doubtful reflashing it will change anything. Maybe theres something else to check?

Which shim/adapter did you build?
 
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ngtwolf said:
Since you already verified your eprom flash, i'm doubtful reflashing it will change anything. Maybe theres something else to check?

Which shim/adapter did you build?
Click to expand...

This one, but I dont know if thats a concern as the adapter and the FreHD arent connected. I am just trying to post the machine on the new Rom without the adapter or freHD connectedkp1.jpgkp2.jpg
 
VERAULT said:
This one, but I dont know if thats a concern as the adapter and the FreHD arent connected. I am just trying to post the machine on the new Rom without the adapter or freHD connectedView attachment 60219View attachment 60220
Click to expand...

Interesting. I guess shirsch can confirm whether it works by itself without any shims or anything.

I haven't built mine yet and mine has some caveats to the build that I have to work out (it's a kaypro II (83)) since it has a different shim that also needs special modifications for a II.
 
So reading the kayplus manual, It's not clear to me how important it is, but from section B, Page 5 it basically says you have to create a special disk (or do an update) and this part caught my eye:


If the system image has been successfully read, KayPLUS will respond that it has detected
that the disk is not a KayPLUS system disk, then automatically install the new BOOT and
BIOS routines. The MAIN MENU will appear next.
Click to expand...

theres also this part:

If you are running under CP/M 2.2F or CP/M 2.2U, the operating system also must be
modified to work with KayPLUS, using the FIX22F program
Click to expand...

Are you using a regular boot disk and did you do whatever this process is?
 
ngtwolf said:
Interesting. I guess shirsch can confirm whether it works by itself without any shims or anything.
Click to expand...

I don't know what the behavior would be without a hard disk connected. And, I'm not at all familiar with the KayPlus ROM. In fact, there was some earlier discussion in this topic that suggests it may be problematic. Any chance of burning an Advent TurboROM and giving that a shot? That's the one I'm using.
 
Well the second burned ROM had the same results of a blank screen and nothing else. I really cant believe that the rom would have nothing on the screen and require the freHD. The freHD has nothing to do with the ROM. The 4/84 has a hdd controller on board the freHD acts as the drive mechanism. Are you saying if the drive/frehd were to die the machine wouldn't post and give you access to a floppy based computer? I dont know that seems unlikely.

Shirsch I can try a turboROM, might as well. Where do I find info?
 
VERAULT said:
Well the second burned ROM had the same results of a blank screen and nothing else. I really cant believe that the rom would have nothing on the screen and require the freHD. The freHD has nothing to do with the ROM. The 4/84 has a hdd controller on board the freHD acts as the drive mechanism. Are you saying if the drive/frehd were to die the machine wouldn't post and give you access to a floppy based computer? I dont know that seems unlikely.

Shirsch I can try a turboROM, might as well. Where do I find info?
Click to expand...

See your PM
 
Sorry Shirsch. I beat you to it. I found the rom here: http://planemo.org/retro/advent-turborom/
I burned it and same result! I am really confused. I think Ineed to pull the board and examine the socket. The original rom works but its only a 24 pin rom. Maybe the last few pins have dry sockets or something. I wish someone who has done with can chime in. I feel as if I am missing something.
 
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