Recent content by landogriffin

If thought about it. The Pi side shouldn't be too bad. IIRC, MAME has an emulator for that TI chip already. The hard part (IMO) would be the MacOS driver side of it. It would be a lot less data sent over the SCSI bus! The MacOS driver is smart enough to only send the chunks of the framebuffer...

Have you tried the driver on other Mac types? The PowerView driver I used will only work with a small subset of Macs (officially), like the Classic, SE and a couple PowerBook variants. You can make it work by faking out the Gesault (with WishIWere) on other systems (like the LC 475).

I'm a slacker :-\ I've had too many projects going in parallel and just haven't got back to this. The original prototype was done before another dev did a big re-architecting of the PiSCSI code, so that definitely took the wind out of my sails. I promise I haven't forgotten about it though...

Ya, PIO is probably overkill. I'm thinking that having a sw thread to bitbang each pin independently could get ugly. But, I'll probably try that first anyway :) I haven't looked too closely at it, but it appears to me this is using PIO...

Very cool project @Androda ! Thank you for sharing!

I have a working USB/ADB converter that you’re welcome to check out. I have a box of them laying around too. github.com/akuker/adbuino

The microcontroller will serve two functions - reading the usb keyboard while servicing the adb ports (even when the port isn’t selected) and for switching sources. I agree that switching source doesn’t really drive the need for a microcontroller. But, if it’s there, why not use it :) I'm...

WRONG! TinyUSB works with composite devices fine (I'm assuming). It was the USB Host Shield library 2.0 that I was struggling with. So, ignore everything I said about composite devices

Can I use my USB keyboard and mouse using the 2.4 GHz USB dongle? Probably. The issue I ran into with adbuino was that the TinyUSB stack didn't support composite devices very well. That has probably changed in the last year since I looked at it though. What about a USB KVM hooked up to the USB...

I thought about the Plus style keyboard/mouse. But, since AFAIK there weren't any macs with external monitors AND that style of keyboard/mouse, it probably doesn't fit with this project. This is going to be a back-burner project for me, but if anyone wants to help, you're welcome to join the...

One of the things on my wish list is an ADB compatible KVM switch. It would be nice to have multiple Macs shared with a single monitor/keyboard so I can switch between them for shenanigans. I came across this old project the other day...

Those are some beautiful solder joints! They look fine to me. The thing that is odd is that the test is only failing in one direction. There aren't any errors reported for ACK -> D0 (for example). Only errors with D0 -> ACK. Have you tried this procedure...

Hi @rollmastr. Great job troubleshooting! Its possible that its a bad transceiver (I've had a couple go bad over time). It is odd that the misbehaving signals are spread across multiple transceivers though. Do you have a multimeter that you could put on pin 24 (gpio8) to see if it is toggling...

Howdy all! I thought I'd share my adventures in logic analyzing... A while ago, @eric shared a project that turns a Raspberry Pi Pico into a logic analyzer: https://github.com/gusmanb/logicanalyzer Last night I finally got around to assembling my board and trying it out. Of course, I tried it...

TIL: Think 6 will not play nice with PowerPC! (Yes, it says that night on Macintosh garden, but who reads stuff like that ;) )