Making an STFM DEV / Test Board
Posted: Sun Apr 21, 2019 10:49 am
In my journey working with exxos and building boards for the STFM I have been building an STFM DEV / Test board. This is an STFM that had seen better days that I managed to get off of evilBay for a very low price as it was listed for spares and repairs. It had a few issues such as the case was obliterated into many pieces and was unsalvageable. The thing did not boot. To cut to the chase I got the board working again and started going about setting it up as a DEV / Test board. The motherboard is a C070789-001 REV.C
So here is where it is so far:
So here is where it is so far:
- Applied various mandatory fixes as listed here
- https://www.exxosforum.co.uk/forum/viewt ... =17&t=1585 - Desolder 68000 chip and put in a turned DIL socket so that booster or die boards etc can be put in to test
- Shifter was already socketed so that saved my the hassle
- Added headers onto some the vias for HSYNC and ACSI_10 for the HDMI / DVI board and IDE Board
- Board came with 512KB so installed the extra chips to take it to 1MB
- At some point I may socket all these so I can try out different memory upgrade options - Desoldered the 1772 to be able to test the 1772 buffer board that was created for the STF Remake