Jason Thorpe
@thorpej
Nerd. Aspiring Unix grey-beard. Bicycle nut. E46 enthusiast. Obsolete technology aficionado. Proud lib snowflake. I like to make stuff, especially Manhattans. he/him.
You never forget how to ride a bike, no matter how long you’ve neglected your starter. Or … whatever.
Ok, dug out a 10x probe to get a better look at the clocks (CPU 10MHz, MMU 40MHz). Hey, they almost look like square waves now 😂 #retrocomputing #MC68010
CPLDs programmed and the MMU is generating the CPU clock. #retrocomputing #MC68010
First bodge of the board! Made a silly mistake in the reset circuit, but it’s easy to work around and I have a proper fix for board Rev B. #retrocomputing #MC68010
Well, the most important part of the board is working so that’s good! #retrocomputing #MC68010
Taking advantage of the C preprocessor can make it a lot more tolerable :-)
Did a little firmware hacking today. I was too lazy to figure out how dynamically-sized bus lane routing works in TME, so I updated the Verilog and emulator so the firmware can figure out at run-time if it needs to use 8-bit ATA PIO 😆
I am absolutely obsessed with this band right now and now I can listen to them properly! #nowspinning
And now fully-routed and passing DRC! Just need to add the NMI debug button that I forgot, and then generate the manufacturing data!
I let myself get distracted with the Ethernet solution for this bad boy, but it's high time I finished the loose ends on the main board and get it ready for fabrication! #mc68010 #homebrew #retrocomputing
In contrast to the FAAAAAST virt68k, now I'm unpacking updated system binaries over NFS on an emulated Sun-2/120 (10MHz 68010) with 6MB of RAM and a 3Com 3C400 Ethernet 😝
I’m listening to Thievery Corporation and making very garlicky croutons for tonight’s dinner. How about you?