I Have neglected these projects too long ☹️. I will tidy up and get back them ASAP.

#rc2014 #z80 #m68k #mc68008 #retrocomputing

I just found my Sinclair QL lurking at the back of the garage. It's going to take a bit of work to get it going again.

I built it into a metal toolbox to sit beside my desk and used a separate keyboard, which was borrowed from a VT100 and rewired to work with the QL.

My QL had not the usual 128 K of RAM, nor was it expanded to only 640 K, but I had 656 K, with an extra 16 K battery backed on a board which I could also use as an EPROM emulator when doing things with other micros. That board also contains a Dallas clock chip, so I didn't have to set the time everytime that I booted the machine up.

The extra 16 K of RAM was actually in the slot usually reserved for a ROM cartridge so it usually contained the dongle from Metacomco's port of the Lattice C compiler alongside a bit of extra code of my own.
#RetroComputing #SinclairQL #SinclairResearch #mc68008 #MC68000

I got it free running! Took ages of reading to figure out I needed shit loads of pull ups! I nicked the reset circuit from a hackaday post, but I got a 68008 executing on a breadboard! 🤓

#electronics #retrocomputing #m68k #nerd #mc68008