SMT parts will be ordered soon. Once they arrive, I’ll double-check the pad design/placement is good, and then order the PCBs! Everything is coming along swimmingly and I should have a prototype PCB in a few...
Archive - November 2013
Moving from prototype on a solderless breadboard to PCB soon
So I’ve got a reasonable number of memory tests passing with the prototype solderless breadboard. There are some minor issues that are mostly related to the stability: Sometimes my memory board steps on the built...
Sometimes the amiga recognizies my ram board, some very basic memory tests are passing
So I’m starting to make some progress here, but I still have some troubles with my expansion board prototype. For the first time, the initial exec-rom-based check passed, and the memory auto-configured. This...
Testing shows databit 10 is always stuck high on commodore amiga expansion
With help from Ralf on this comment I was able to Disable the memory by no-longer grounding PIN 32, and sometimes forcing CE high on the SRAM chip. Boot a workbench disk, and then break it on startup. Insert a disk...
Amiga Guru Meditation number 00000003.00C06560
Found a bad flip/flip replaced it, and now I’m on my way. The amiga appears to be getting past the initial boot stages including the ram memory checks! I see the blue screen, and the disk drives starts loading...