Recent content by max1zzz

As far as I have been able to find the rocket can't boot from a drive connected to the booster while using it in accelerator mode, At lease I never managed to get it working during testing You shouldn't need any additional software installed, however have a look in the extension folder on your...

Next batch of Rocket SCSI Booster PCB's are here! The should be assembled and ready in a few weeks, if your interested please keep a eye on the FS thread :)

V1.1 PCB's have arrived and are fully working with no bodges :) I guess now I need to tidy up the schematic, after all I did leave this note in it :ROFLMAO:

The answer is I don't really know! There will be at least the three from the remainder of the prototype run then at least another 4 from the test run of the final design but after that I don't really know. If there is enough interest I might order a larger lot of boards after that but if there...

So what's next? The boards need a little tweaking to resolve the issues noted above, once this is done I'll get another run of test PCB's made and tested and then post the designs up on github I also intend to make a Port Riser board with connections for a original keyboard and mouse should...

So with the board booting it's time to look at the I/O First to be tackled was the SCSI connectors, these where soldered on and the board booted Mac OS 7.1 from my BlueSCSI just fine. That's good! it's nice when stuff just works :) Except..... Apparently I used the wrong footprint.... Oh well...

So, As mentioned above the board is now booting and working just fine but how did we get here? When the board was initially tested after assembly it did nothing at all. No chime and no video. Though frustrating this is kind of what I expected, the scan of the apple schematics we have is not...

I do think it is a little stretched though I think this might be more a artefact of it being displayed on a 16:9 LCD as I have seen other peple using the same scaler setup and it looks fine. I was going to test this theory then I realised I don't actually have any 4:3 screens any more...... I...

I have been a little slow updating this thread but testing and tweaking has continued in the background, I'll do a full write up over the weekend but I'll leave this photo here in the meantime; 7.1 Boots from SCSI just fine :)

It's late and I'm not doing a full write-up tonight, but I'll just leave these here (excuse the potato video, it's that or a massive file and I cba with trying to compress it right now)

You could quite easily just jumper HSYNC, VSYNC and video through and remove the pico module however this will leave some extra resistors in line that may or may not cause issues but those could easily be removed. However I will also be adding internal video headers for both the mac and VGA side...

RAM is setup exactly as it would be normally would be just without those pesky simm slots :) The performa clone won't fit as it is, though doing a variation is on my list. Given I expect most people to socket the 68000 when building these it's actually easier to build them this way - just pull...

All the non programmables (and the ROM) are soldered down, will get all the PAL's programmed and installed tomorrow. Also still waiting for a pico to arrive as my spare one is AWOL

PCB's are here!

The HD15 connector is a standard VGA output generated using GuruThree's Raspberry Pi Pico based converted - you can see the big 40pin footprint for the pico module on the right side of the board. PSU connector is a standard 24pin ATX connector