Re: CF Images for the Dual IDE/CF

There was an issue with the drive change not working well, specifically with the 80386 board. At least for initial testing it shouldn't be an issue. I chose to make the modification on a small header instead of cutting traces. It's at the bottom of the section for V2.

- Gary

Bugs
There seems to be a problem with the drive select A & B timing with some CPU boards, the rising edge signal from U15A pin 1 (WR*) is coming up before the data line D0 has really settled into pin 2 of U16A. You can delay the rising edge signal to U16A, pin 3, by inverting the signal through the spare U15B gate. Bend out pin 5 of U15 and pin 3 of U16A. Jumper U15A pin 1 to U15 pins 5 (front of board). Connect U15 pin 4 to U16 pin 3 (back of board). If you experience difficulty switching drives with the MYIDE program software, please consider this patch. (Thanks to Dave Mehaffey & Thomas Owen for pointing this out).

On Tuesday, June 30, 2015 at 4:22:03 PM UTC-4, hlr...@gmail.com wrote:

Thanks Gary,

I'll try it. I looked at the scan of your board and it is the same version as mine. However I noticed that pins 1, 4,5 an 6 of a 74LS02 have been lifted and I can't tell if they are tied together. The IC is lower left in your picture. I don't know what is going on there. I don't recall seeing these changes on the build instructions for the DUAL IDE/CF. Did I miss something?

Thanks,

Harold

On Tuesday, June 30, 2015 at 9:35:25 AM UTC-4, hlr...@gmail.com wrote:
Hi Everyone.

I have been building up a system with the Z80 board, 4MB memory board, Dual IDE/CF, and the prop I/O. I have finished this and am using the V5.02 ROM on the Z80. The system boots up to the menu. However I can't do very much except check memory and display.

Now I want use my V2 Dual IDE/CF to boot up CP/M. Unfortunately the link on s100computers for the jumper and switch setup is not working! I was wondering what people use for settings on SW1, SW2. I think I have jumpers K1 and K5 set okay.

I also found a thread about CF images for the IDE/CF board, but the date was several years ago. Is there a location where I can copy a disk image for CP/M? I have the Kingston 4GB CF.

Any help would be great!

Thanks
Harold