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NF_

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Everything posted by NF_

  1. I totally forgot about this too. I'll add these details to the wiki re: mounting ISO images w/ RaSCSI.
  2. I saw this myself. Will be testing more soon, and will hopefully have an answer.
  3. Thanks again. Was this the error you saw?
  4. Thanks for checking. I'll do some testing and try to recreate. How big was the ISO image in MB?
  5. Just to confirm, has the upload_max_filesize setting in /etc/php/7.3/apache2/php.ini been changed? The default is 2M, but the wiki talks about bumping it to 1200M. If that setting has been changed, is the CF card out of space? You can check free space with ... df -h but I suspect free space is not an issue on a new installation.
  6. Hey @quorten that's a really cool idea. If you want to help get that going, the github project accepts enhancement requests on the issues page. https://github.com/akuker/RASCSI/issues
  7. Hey @Torbar, I was thinking about your suggestion and didn't want it to go unnoticed. Looks like the SN7406D can sink 40mA, which is closer than the 245 only sinking 20mA, but still not within spec (48mA). Another issue is it provides six buffers/drivers versus the eight on the 74xx245 and 74LS641-1. So the pcb would require some rework, but still not meet the SCSI spec. But it is a good suggestion, and I have added it to the transceiver comparison page in the wiki.
  8. That's interesting. Thank you for clarifying.
  9. I'm still reading about this, and wondering if I'm mis-reading or misunderstanding something. I'll check the TERMPWR on my SE this weekend. If it's there, I should see 5v on pin 25. I've attached the NCR 5380 SCSI Interface Chip Design Manual for those interested, or you can find it online here. NCR_5380_SCSI_Interface_Chip_Design_Manual_May85.pdf
  10. I see the appeal to have it powered by the SCSI bus, but I don't see how it can be done practically. The Mac II, SE and Plus use an NCR 5380 SCSI controller. The controller outputs have a max voltage of 2.4v, and 48mA. In addition to the low numbers, the SE, Plus and II don't provide termination power. Even if there was a way to scavenge power from some of the other lines, The Pi Zero W needs at a minimum 80mA, and to get the power draw that low, you sacrifice a bunch of functionality. I think powering stuff via the SCSI ports would hinges on termination power being av
  11. Logo looks great. Added to wiki.
  12. This is done. README.md data is now moved and organized within the wiki. Much of it on the main page, which itself will need some tidying up. README.md has been updated, suggesting readers check out the wiki.
  13. Does anyone oppose or have thoughts on having the contents of readme.md merged into the wiki?
  14. I'm trying to clean up a few pages here and there. If anyone else wants to pitch in, it's much appreciated.
  15. Awesome, will do. Started editing the main wiki page and changed the supported RPi list into a table. Have been looking at other github wiki pages for inspiration on improvements. If you see any issues with the changes I make, feel free to revert
  16. Wahoo! The PCBs arrived today! At first glance with untrained eyes they look great! Have a couple of projects on the go right now, but once they're done will dig into populating and testing.
  17. Man, you're making excellent headway on the web interface. I was just thinking about the need to manage this unit from a shell. No problem for people comfortable doing so, but a web interface really makes the product accessible to more people. Your choice to keep the page simplistic is the way to go. The less features the web interface has, the less things can break / need documentation / need support. On that note, I can assist with the documentation if you like. Not a professional by any means, but understand the value of good documentation for a given product. Re:
  18. Man, that is an awesome resume! Very cool of you to offer case design for this project. Having a proper enclosure for the RaSCSI would be a real treat.
  19. Nice! That's super smart. Made me think a stacked DB-25 connector like on this page. Very cool. I may end up building a few and selling the extras. Still waiting for the PCBs to be delivered. They're in transit now. Once you're satisfied with the product and we have a few tested and working, maybe we can put a post on r/retrobattlestations or similar. I'm keeping an eye out for an DB-25 to HDI-30 to connect the RaSCSI connected to some older powerbooks. I've also got a SPARCstation to test with. Will need to find a suitable 68pin SCSI conn
  20. Just floating another idea, but what if the RaSCSI was mounted below the RPi instead of above. It would require the user reorient the RPi GPIO header to face downwards, but wouldn't require any changes to the RaSCSI PCB to work. Since I've ordered 5 boards, I am going to try this out. With a Pi zero w attached on top It would make for a compact package. Putting the larger PCB be on the bottom might make for a better configuration if someone chose to design a case for the whole thing. Putting it on the bottom also addresses your concerns about cooling, but certainly wouldn't fit an
  21. I can't speak for others, but in my setup I'm adding a serial port to the RPi to connect to a Macintosh SE via the modem port. With that I can console into the Pi using any terminal program. If that goes well, I can always setup a PPP gateway and use the Pi to get on the internet. Again that's just my use case, but if I used a SCSI2SD, I'd still need the RPi to do the serial port stuff.
  22. I very little about board design and layout, but maybe the board have some additional layers which would give you extra room to reroute some traces. To handle signal degradation/noise have the outer most layers solid as to act as a shield. With the important traces rerouted and shielded, you could create a hole in the board to accommodate an existing fan. I'm not sure this is a great idea as a fixed hole size for a fan won't address the variety of cooling options people will want to apply to their RPi4s. Another idea is to turn this into an external board, to be connected via a ri
  23. Thank you for the reminder! I read through the open issues and noticed the issue, but appreciate the reminder. Unfortunately I don't have the skills to update the board layout to fix this and submit the updated files. My DK order arrived yesterday, just waiting for the boards to ship now. I'll post updates on my progress once the parts are here.
  24. Thank you for putting in the work on such an excellent project. I've just ordered all of the parts from DigiKey to build one. Most parts were in stock, just had to change the fuse for a similar one, along with the 0805 resistors. Easy. When shopping for somewhere to make the PCBs I uploaded gerber.zip to OSH Park but they report the design is missing a copper layer. Not sure what's up with that. I did put the order through with JLCPCB without issue. Thanks again.
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