--I have a working system now - my problem turned out to be the Compact Flash itself. Many thanks to all that pointed me in the right direction, and to David Fry that did a lot of the work in this 'no holes' version.
Since the version David offered online does not contain any system files or utilities, I am copying those over to my new system drive now.
Thanks again,
Thomas
On Thursday, June 12, 2014 3:35:21 PM UTC-4, Thomas Owen wrote:Hello David,
I see what you mean about the data discrepancy - I have 2 Kingston 8G and will try the second one right now. I will also have a couple of 512MB tomorrow to try.
The data loss and/or problem could be the entire issue her, but I have attached the two files you requested.
Regards,
Thomas
On Wednesday, June 11, 2014 3:35:13 PM UTC-4, Thomas Owen wrote:Now that I have my IDE card passing all the preliminary tests, I am trying to install CP/M on the Compact Flash drive and get the system to boot.
System:
Compupro ZPU at 2 mhz.
IDE CF Card, version 2.0a
IMSAI SIO for console
Ram 17 with Eprom installed at ‘E000’
8 gb Kingston CF
Have read, and re-read all the articles I can on the site, and decided to use the method put together by David Fry found here.
http://s100computers.com/My%
20System%20Pages/IDE%20Board/ Z80%20CP_M%203.0%20build.pdf
Step 1 - I modified HLDRBIOS.ASM to support my Console device (IMSAI SIO)
Step 2 - I modified CHARIO3.ASM to support my Console device
Step 3 - Assembled and built the CPMLDR.COM
Step 4 - Copied it to the CF at Sector 0
Step 5 - Assembled and built the CPM3.SYS and copied it to the CF at sector 112
Step 6 - Moved sector 48 to sector 63 on the CF
I know the install is not complete, but at this point I wanted to see what a ‘Boot’ looked like from David’s MYIDEROM:
At boot I see displayed on the console and MYIDEROM reports this drive information:
Cyl: 3C82 Heads: 010 Sectors: 0048
Then I choose ‘C’ for Boot CP/M and here is where I see a problem:
Notice the ‘LBA = 003C003C’. Why is that value so high and incorrect?
Any suggestions to getting is completed?
Thanks in advance,
Thomas
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