Mine is version 02, and I noted the LED labels were incorrect. I compensated by “crossing” R30 and R31 so they drove the opposite LEDs, thus making the labels correct. This is one of the hardware issues I discovered as I was building my board a few months ago. As promised, I am trying to find enough time to pull out my notes on the other changes I made to the board. Hoping to get to that this weekend.
Last time I worked on it, my board was working with the MyIDE program using what I think is a Syba IDE-CF adapter and a SanDisk 8MB CF card. I had not succeeded in getting it to work in CPM2.2. At the time I thought it was most likely bugs in my BIOS. As I mentioned a few days ago on this list, I have put making this work with CPM2.2 on the back burner in favor of getting a new CPM3 system running, since it appears to me that I may have an easier time with configuring the BIOS in CPM3 for this board.
Regarding chips: My 7403’s are actually 7403. My 8255 is a plain 8255, not CMOS, not dash anything.
My CPU is a 4MHz Z80 on a CCS 2810 card.
Bob Bell
From: n8vem...@googlegroups.com [mailto:n8vem...@googlegroups.com] On Behalf Of Rich Leary
Sent: Saturday, January 17, 2015 12:17 PM
To: n8vem...@googlegroups.com
Cc: norwe...@aol.com
Subject: Re: [N8VEM-S100:6041] Dual IDE/CF V2a
John will be the definitive source but I think the "a" was a silkscreen change only regarding LED labels.
Rich
On Saturday, January 17, 2015 at 10:02:29 AM UTC-7, norw...@aol.com wrote:
>> It is the most recent release. Silkscreen says 02a.
Mine says "02". Is that the problem? Am I screwed??
Roger
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