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Pin 20 and 21 are bridged on the bottom of the board on my unit. They then go to W6 as a single trace.

/Jeff

I have narrowed things down a bit. When the machine is cold, the disk boots fine for the first few minutes. After that, it fails around track 7. So its definitely hardware, and its likely heat related. I ran an exhaustive memory test overnight and all the ram checked out fine. I have replaced the AC...

I am using the macro assembler that is part of this program: http://www.cc65.org

I haven't figured out how to get the c compiler up and running yet, though.

/Jeff

I am working on a two part project. The first part is a small program that runs on a Challenger that takes commands and data from a host (Mac, PC, Etc) that will send it disk track and sector data for the purposes of re-constructing floppy disks. Here is my first cut for the Challenger slave portion...

I will re-check the timings, but I don't think they are out because when I do a disk dump, every track and sector reads back EXACTLY matching the data that I sent and SAved. I am using, firstly the Epson dual 3.5 and 5.25 drive with disks I created about 3 weeks ago with that drive. I suspected the ...

Well I am having problems getting my Superboard to boot. I have made a boot disk from OS65 v3.1 for C1P but it gets 7 tracks in and hangs. I have dumped the disk and compared it to the split files and it is perfect. I have tried 2 different drives making a boot disk with each drive. It worked a mont...

I figured it out. I also made a schematic to help figure out the signals when hooking up other floppy drives. See attached. /Jeff

9600 no delays

BillO wrote:I got the video working. It was the character generator. I found a different file, burned it, tried it and we're all good now!

Bill, can you post the file, so there is no confusion? Thanks!
/Jeff

Yup, it's a typo. I bought 100 and not one was bad. The pins are a bit flimsy but that's all. They work.