![]() ![]() It had previously worked with a Video Genie too. The Gotek/HxC drive still works with the Amstrad CPC 4 machines. But the problem is still there with the good motherboard. I had presumed that the faulty drive select signals I’d seen before were connected to the faulty floppy interface on the bad Osborne motherboard. ![]() The Gotek/HxC drive won’t respond to any signals (although the physical drive now works correctly). Doh! I’d forgotten that jumper was still there. But eventually I trace the fault to a jumper I installed that forces the Gotek/HxC drive to respond to any drive signals, because I previously discovered the drive select signals weren’t getting through correctly. Many hours of debugging ensues, including dismantling and reassembling a faulty drive-selector switch on the RetroMatic 2000, and resoldering connections that have become detached. I can access the Gotek/HxC drive, but when I try to access the physical drive the Gotek/HxC drive also tries to respond, and so neither work. I also connect an external monitor since the internal monitor will be facing away from me and upside down! I connect up the Osborne to my custom floppy cable, with the Gotek/HxC drive alongside one of the physical drives. Little did I know that this simple job would turn into a 3+ day marathon… I’d already tested that this worked with the Osborne with a custom cable, so my plan was to open up the Osborne, connect the cable, copy all the software to real floppy disks, then reassemble the computer. In last year’s Retro Challenge I made my RetroMatic 2000, which included a USB floppy drive emulator based on Gotek hardware with HxC firmware. My next stage with my Osborne computer was to bulk transfer CPM software I’ve downloaded from the internet onto the computer. ![]() This is part of a series of posts for the Retro Challenge 2018/04. ![]()
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