Good job! Happy to see I’m not the only one using lower case for labels and mnemonics 😂 I was wondering why your code seems extra easy to read. So sad you’re 40 years late sending it off to a fab when you’re done with it. Would’ve liked to see it end up as an ic - I guess we can cheat and encase an FPGA in a dip40 when you’re done with it 😊
It would have been helpful to review what the lines to the floppy drives do before you began . Some of us haven't messed around with a floppy drive at the hardware level for decades.
@@GeorgeFoot Yes, it turns out I watched that video several months ago and I have completely forgot I had ever seen it. Also, I don't really want to rewatch a half-hour video just review the basics of what you're doing for this video. There's just a few lines on the floppy connector that need short explanations otherwise everything you're doing in this video is a mystery.
Haha yes. I actually thought I could rig the floppy hardware to just copy a sector to RAM during the reset, a bit like I do in my ARM computer to copy from ROM to RAM - then no ROM would be needed at all. Unfortunately it's probably easier to get data onto the ROM than it is to get it onto a disk...
Good job! Happy to see I’m not the only one using lower case for labels and mnemonics 😂 I was wondering why your code seems extra easy to read.
So sad you’re 40 years late sending it off to a fab when you’re done with it. Would’ve liked to see it end up as an ic - I guess we can cheat and encase an FPGA in a dip40 when you’re done with it 😊
Most impressive. Always a joy to watch your videos. And I learn something too. 😊
Thanks Brett! I'm looking forward to reading some useful data next!
Awesome video ❤️
Installed, everything works, thanks!
really cool! are you planning on putting a filesystem on it at any point?
Thanks! I'll probably read the BBC Micro DFS format to begin with, as it's easy for me to get data onto discs in that format.
It would have been helpful to review what the lines to the floppy drives do before you began . Some of us haven't messed around with a floppy drive at the hardware level for decades.
Hi Scott, I covered those in detail in an earlier video, I'll see if I can get a popup link to work in a bit, but it's only a few videos ago
@@GeorgeFoot Yes, it turns out I watched that video several months ago and I have completely forgot I had ever seen it. Also, I don't really want to rewatch a half-hour video just review the basics of what you're doing for this video. There's just a few lines on the floppy connector that need short explanations otherwise everything you're doing in this video is a mystery.
Thanks for the feedback, it is hard to strike the right balance. I nearly cut the explanations out of last week's video as well when editing.
love it!
Soon you can just have a ROM that boots software off disk, no more taking the ROM in and out!
Haha yes. I actually thought I could rig the floppy hardware to just copy a sector to RAM during the reset, a bit like I do in my ARM computer to copy from ROM to RAM - then no ROM would be needed at all.
Unfortunately it's probably easier to get data onto the ROM than it is to get it onto a disk...
Breadboards are messy, all those extra inductances of all those wires, that is why those circuits get problem after couple of MHz.