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Making an STFM DEV / Test Board
Posted: Sun Apr 21, 2019 10:49 am
by Icky
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:
- 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
- IMG_3761.png (2.83 MiB) Viewed 4734 times
Re: Making an STFM DEV / Test Board
Posted: Sun Apr 21, 2019 10:57 am
by exxos
Cool. Just need another 10 boards then your caught up
Re: Making an STFM DEV / Test Board
Posted: Sun Apr 21, 2019 11:02 am
by DoG
Icky wrote: ↑Sun Apr 21, 2019 10:49 am...
- Board came with 512MB so installed the extra chips to take it to 1024MB
...
I don't think so. You have to edit that.
Re: Making an STFM DEV / Test Board
Posted: Sun Apr 21, 2019 11:29 am
by PhilC
That'll be why you mentioned making a dev board the other day then.
Re: Making an STFM DEV / Test Board
Posted: Sun Apr 21, 2019 1:02 pm
by Icky
DoG wrote: ↑Sun Apr 21, 2019 11:02 am
Icky wrote: ↑Sun Apr 21, 2019 10:49 am...
- Board came with 512MB so installed the extra chips to take it to 1024MB
...
I don't think so. You have to edit that.
Good spot - Was in a rush going out the door. Never press send without re-reading
- Corrected
Re: Making an STFM DEV / Test Board
Posted: Sun Apr 21, 2019 5:41 pm
by Icky
Today I have added a make shift dev socket for Blitter testing. This is for the Blitter Re-creation
https://www.exxosforum.co.uk/forum/viewt ... ?f=29&t=79
- IMG_3763.jpg (269.97 KiB) Viewed 4698 times
Re: Making an STFM DEV / Test Board
Posted: Sun Apr 21, 2019 5:42 pm
by exxos
Same thing I did for testing the original V1 STE boosters
Re: Making an STFM DEV / Test Board
Posted: Sun Apr 21, 2019 5:49 pm
by Icky
exxos wrote: ↑Sun Apr 21, 2019 5:42 pm
Same thing I did for testing the original V1 STE boosters
Always following your lead exxos