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Quite some time ago I picked up an HP 16702B logic analyzer frame, and have used it for a variety of projects. But all this time, it has had one very annoying fault: the built-in display was not working. That's why it was priced so low, the used equipment wholesaler thought it was irreparably...

Wow, this is great information. I've never used any of these tools before (other than Ghidra) so it might take me a bit to get set up and understand them. It also sounds like we'll need a dev rom board to try and increase these settings, I would guess that ROM patches can't do it?

This is the core problem: a repeated 5-flash (pause) 5-flash means BlueSCSI cannot communicate with the SD card. It's a little odd that a log.txt is created at all if you're getting 5-flash. Did you try this SD card in a different BlueSCSI in a different system before the Classic? If the...

DRAM chips on the eMate 300 motherboard are 2x TC51V4260. These are 256k x 16 chips, likely wired as two banks of 256k at 16 bits wide. This doesn't exactly explain the 900k of DRAM reported by the eMate in base configuration. My guess is that they are calculating it not based on bus width...

This time while testing the production modules, I measured the wait time. Varies between about 50 seconds and 1 minute 30.

Here's the documentation I mentioned, which runs through checking resistance to things around the hybrid and doing some voltage checks with the battery connected (but the system otherwise turned off). If some people could read this and tell me how terrible it is, I would very much appreciate...

If this makes me a hoarder, then yes. https://tinkerdifferent.com/threads/androdas-finds.893/post-7170 Plan is to fix them all up with new display ribbons, upgrade with DRAM+Flash cards, and then resell. Would rebuild the batteries too if I had a good printable design for that (or a battery...

Say hello to the 'integrated hybrid tester platform'. Includes three dedicated little voltage meters for (top to bottom) battery, A/D line, and the main 5.2v rail. Three switches are also on there for enabling/disabling 12v, -5v, and the "hichg" line. All hybrids will be tested on this for...

Yeah, what could an eMate do with 16 megabytes of DRAM? I really have no idea, mostly just want to enable other people to do things which I am not thinking of. :) Production will start on the DRAM+Flash upgrades probably a little later this week. And I'll update the product page to mention...

Main Update: The DRAM and Flash chips have now arrived, so I can start production of the upgrades again. Very long secondary update: I also ordered some of a different DRAM chip to try out and the results are interesting. These other chips are 8k refresh, 13x9 row and column arrangement, self...

Pogo pin tester assembly is in progress, might be able to start testing some boards with it on Monday.

https://github.com/androda/F4_BlueSCSI/releases/tag/1.1-2022-09-20 Thanks to @jokker we now have CD/DVD image support in a full release! This release also improves Atari support, among other things. See the release notes. This brings F4 up to date with the upstream release v1.1-20220917.

At a guess, this is a rebadged SCSI controller chip plus microcontroller. Having the ROM dumped is a step toward figuring out which architecture the CPU is.

Also, a status update. I have redesigned my "downstream" tester board a bit, and hope to have the updated version by the end of next week. This will be set up with pogo pins as a fixture for use in starting production of these hybrid recreation boards. The pogo pin tester will allow me to run...

Two very interesting things have emerged about the Mac Portable and the Power Manager chip, based on my increased understanding of the Hybrid module through all this research and work. 1: The A/D line voltage, intended to convey battery and charge level information to your system, can kill your...

I've tweaked the mounting bracket for the existing F4Lite V1.1 design, in the hopes that it will work with LC520 style edge connector machines (I don't own one of these systems unfortunately). Looking for a tester or two in the USA, DM me if interested. My eyeball and caliper say that things...

I don't have plans to offer fully unassembled kits unless there's a lot of demand for it. Something totally unassembled can't be tested at all, and I don't like the possibility of sending something out which won't work even when properly assembled. We're dealing with new old stock parts...

A quick update, PCBs for the second production round have arrived but I'm still waiting for the DRAM and flash chips to ship. Once everything arrives here, I'll be able to make something like 25 more upgrade modules.

The listing on my site for the recreation cable is now open: https://androda.work/product/macintosh-backlit-portable-m5126-screen-flex-cable/ Don't have a ton of them, and will order more once these run out.

Here's a link to the eMate display cable, for anyone that feels like testing it currently: https://androda.work/product/emate-300-screen-flex-cable/