Look what the postman brought me today:
This is version 1.1 of the prog board, and version 1.2 of the char board.
What is different?
- changed the electrolytic capacitor footprints to make soldering easier (2.54mm grid instead of 1.2mm)
- tweaked the length of the card edge connectors to leave enough space for bevelling
- optimised out a handful of vias
- char board: tweaked the positioning of the logic chips to leave more space for the capacitors
- prog board: moved all chips a few mm away from the two holes for the mounting posts to leave space for the tabs
- prog board: expanded the prototype area into the empty space
(The blue pcbs are for SNES cartridges using 512k x 8 flash chips and an adapter to rewrite them. There is no room in the cartridge for sockets.)
This is a set assembled with DoDonPachi. Yes, I checked if the prototype area has any impact on the cost: gerber files with and without the holes return the same quote, so I assume they are factored into the general manufacturing cost.
Game running fine.
Oh, and if anyone is wondering what it looks like if there is a bad contact to the B1 and B2 ROM:
Cleaning the oxidation from the legs with a bit of sandpaper seems to have fixed it.