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Hmm seems like the WarpSE will need to slow down even more when filling the sound buffer. Or maybe there's some kind of regression because I didn't think "robust" sounded any better than "nofixedwait" even though it should. Hmm that 8 volt peak-to-peak thing... didn't know that! I don't know...

Well I guess there's actually another important thing I forgot about as well... how come fast SCSI makes the mouse jumpy? We will have to investigate this some more in the effort to speed up SCSI further.

@JDW Hmm yes we will have to fix this before the release. I think my SE has a larger hole there? I have bene using it exclusively on the bench though so I have not checked recently. I think the easiest solution is to just let the WarpSE be powered by the USB port so you can flash it outside of...

@JDW can I ask what kind of system you were running the update program on when it crashed? What CPU and OS? Was it running in a virtual machine? I think you'll find that on "nofixedwait", four-voice sound is slightly corrupted, maybe a bit better than without any slowdown but not perfect. I...

Here are some more firmwares with different slowdown options enabled. "robust" is the same as what I just posted. "slow" has PDS-synchronized slowdown enabled all the time. It should be only slightly faster than a Mac SE. "fastscsi" is the same as robust except the machine doesn't slow down for...

More prototypes are being made! @techknight I will send you another to replace your WarpSE with the broken port. And new firmware! As I said before, the issue was with SCSI devices, not with sound per se. The reason it was crashing in the sound control panel was that the sound control panel...

I think we can rectify the problem with the USB connector being too hard to plug in and too easy to knock off by changing the WarpSE design so it can powered through the USB port: Now there's a diode from the USB power to the card's +5V plane. The diode could drop as much as 0.5 volts, so this...

Basically yeah although it’s slightly more complicated because of the tuning of the bus bridge. If we just sent DTACK from the PDS to the accelerated CPU, it would not necessarily work. First of all, since DTACK is synchronized through multiple flip-flops in the 68000, but the data input is...

Two more thoughts about this issue... First of all @techknight if you're flashing a bunch of times in a row, you can basically just pull the plug once the update is something like 55% done. Once you see it slow way down from 1000-2000 bits/sec to under 500, you know it's verifying what was...

Hmm well I was finally able to duplicate @techknight 's sound control panel crash (not sure what changed) but yeah, unfortunately it still happens even with the SCSI slowed way down. Maybe we're accessing the VIA or something too fast? I'm shotgunning at this point. Sorry about the virus...

Okay @techknight can you try this firmware? I think the issue with the sound control panel is with reading the sounds from disk. Unfortunately I can't duplicate it. You were using BlueSCSI, right? What version of the hardware and firmware? Anyway, since I suspect it's a SCSI issue, I've slowed...

@techknight Ahh great work! A new prototype should be on its way to you early next week anyway. And maybe I should try to recess the USB port before we release the WarpSE. I'd like to use a through-hole part but the one problem through-hole microUSB connectors have is a tendency to wick up...

No big deal! We can just make another run of prototypes and send you one. Don’t waste your time with a jank solution unless it’s really easy for you to do. And thanks for your help so far! I’m thinking that the crash in the sound control panel may be related to SCSI or something, not sound per...

@techknight Can you flash the attached firmware and let me know if the sound crash still happens? Just run the program in the zip file and follow the directions. Be forewarned though, it takes about 6-7 minutes to flash the firmware and you will have to snake a microUSB cable out of your Mac SE...

Thanks for your help testing!! Looks like we will need to do a firmware update soon to rectify these issues. The sound crash wasn't occurring with four-voice sound in my testing. Interesting. Probably this is because the sound slowdown is sorta hamfisted. I'm gonna have to implement...

According to GlobalPost, it can take up to 10 business days for delivery, so apparently you should get it by next Tuesday. I guess it just arrived at the shipment consolidation facility in Chicago so it should be on its way to Japan Post soon. Excited to hear what you think!

Just got the CPUs today! As we all know, these MC68HC000 chips are considered legacy and were discontinued by Motorola/Freescale/NXP years ago. Fortunately Eric Woo was able to come through with 253 chips with good provenance: My main criteria was that the chips should have original markings...

Small update on testing—Petar and Jeff have received their WarpSEs and @techknight has joined as a beta tester too. Hoping to get @Crutch as a tester as well since he did a fantastic job testing our ROM SIMM a few years ago and his utility apps are super useful.

The WarpSE will be available on our eBay and Tindie stores: https://www.ebay.com/str/garrettsworkshop https://www.tindie.com/stores/garrettswrkshp/

So far I've sent the board to three beta testers: James Wages (@JDW), Petar Puskarich (@ppuskari), and Jeff "JT737". Too bad Jeff isn't on TinkerDifferent. Maybe I can get him on here then we can all discuss our test results. A few more testers might be required in the future but first let's...