Jump to content

All Activity

This stream auto-updates     

  1. Past hour
  2. Kai Robinson

    Apple custom ASIC dissection, imaging and analysis

    I'd love to know where the masks/layouts/schematics for them are - or if they're just lost to time... I know the WIM chip is basically a consolidation of an Apple Disk II card, and the SWIM is a minor improvement over that...we need more schematics for things - there has to be a way...i wonder, would apple not provide such things for vintage machines like they used to, to dealers?
  3. Trash80toHP_Mini

    New 3D-printed parts (ktkm)

    I'd suggest neither. A new thread can be built with an OP having links to every part discussion covered so far in both threads. That way new project discussions can be added and earlier discussions in the first thread can be reopened for further development with a link to the original discussion keeping context intact? Advancing printer tech and bed sizes are making larger parts possible. With falling "desktop" 3D milling machine prices, a sister thread comes to mind. Combining the two technologies seems to be the next step to me. 3D printing is like casting Ford's V8 block with subtractive milling processes resulting in a precision part. Milling aluminum reinforcement or connective sections to be inserted at a specific point during printing might make assemblages of much larger or more robust parts practical? Has anyone here experimented with dovetails, mortise and tenon or other classic wood working jointery technique that lends itself to chemically welding printed sub-assemblies into larger parts? I'd think that's been going on somewhere out there for quite some time?
  4. aperezbios

    MacSD - new SCSI SD card emulation tool

    Err, no? I'm not sure where you sourced this erroneous information from, but you're completely wrong. We (Inertial Computing, who is the OEM that manufactures them) ran out of stock, due to a surge in demand, for about three weeks. Respectfully, please don't spread FUD. SCSI2SD V5.1's are now generally available again, and we will continue to make them as long as the parts can be sourced in volume, and the demand doesn't abate, which it's far from doing. We also have plenty of V5.5's available, and have just ordered another thousand.
  5. Hi all, quick question. I have a B&W G3 with the entry level 300mhz chip in it, and a parts donor with 400mhz chip with twice the L2 cache. Do I just need to switch the CPU card and the jumpers over to upgrade it or are the logic boards different and would require the whole board to be switched over? Cheers!
  6. jessenator

    New 3D-printed parts (ktkm)

    Are we making this the de facto 3d printed parts thread, or still continuing the old one? Just curious so I don't hijack this one unnecessarily
  7. Today
  8. Trash80toHP_Mini

    Apple custom ASIC dissection, imaging and analysis

    I doubt there are nearly that many. They started out with single function ASICSs and consolidated processes within multi-function ASICS thereafter. I've always wondered what a timeline of Macs by family charted against the development tree of the ASICs on board would look like? I'm all but sure the masks within the consolidated ASICs look different for each baseline function block and some functions become more powerful as you move along the consolidation/complexity tree, but concentrating on the basic building blocks ought to lead to a growing understanding of the logical functions in later, consolidated silicon?
  9. Merk

    New 3D-printed parts (ktkm)

    Played around with Tinkercad and designed a port cover for it. It could be resized to cover other slots as well. Like Apple's port covers, it comes in to parts, the actual plug and the plate that holds it in place. Comm Slot Plate.stl Comm Slot Plug.stl
  10. NJRoadfan

    Apple custom ASIC dissection, imaging and analysis

    Commodore didn't even consistently make the SID sound the same. Witness the 8580.
  11. bigD

    Walkmac

    Wow, I was never aware of such a beast. Great rescue!
  12. AichEss

    Bondi Clamshell!

    With an active Wi-Fi available just keep the 'Book with the Date and Time Control Panel (OS 9 nomenclature) set to use the Time Server. You get an almost immediate correct clock set when you start up.
  13. Bama

    IIsi CAP kit ordered...

    I just changed the Mouser project to reflect the correction. For me, the above hyperlink to the mouser project is working and shows the correct list. Please let me know if further changes are needed. Bama
  14. I picked up a Seagate ST32151N 2.1GB 50pin SCSI hard drive. Im hoping to put it in my Performa 550. Problem is...I don't know much about SCSI. http://office.manualsonline.com/manuals/mfg/seagate/st32151nwwc.html It does not show up as an option during OS install or under any Apple disk utility or SCSI setup. I've tried playing around with the different jumper setting/termination settings. Does this hard drive even work in this computer? Any help on the what the correct jumper settings should be for a performa 550? Thanks
  15. sutekh

    PowerBook 1xx Wireless Modem

    It'd be interesting to try. To get that actually working, I've wondered if I'd need to implement some of the modem-specific functions like DCD, Modem.Busy, etc. that I'd planned to omit. Not sure what the driver expects... Yeah, my initial mockup had and SMA connector there, but I decided on an RJ11 as mentioned above for a couple of reasons: The port door on the back would interfere with it for one. More importantly though, I want a way to connect an FTDI cable to the device in situ for re-programming, updating, etc. that doesn't require pulling the PowerBook apart. With their fragile plastics, the less often that happens the better! I don't believe a helper PC should be necessary with the ESP8266 running ESP_SLIP_Router (https://github.com/martin-ger/esp_slip_router). You should just need to serial into the device via a terminal to setup the SSID, PW, etc., then use MacSLIP (or similar). Indeed this is a problem. I've really no idea what that internal port is real-world capable of without more testing. I think the fact that Apple moved to an SPI approach leveraging multiple data paths for the "Express" modems beginning with 14.4 suggests it's pretty underwhelming though. The way I'm looking at it, anything these machines can do online is "quite slow" regardless, and even modem speed should suffice for IRC, SSH, Lynx browsing, etc. It's a limitation I'm probably willing to accept for internal, modular wifi. If it's just unacceptably slow, I've pondered remixing something like Saybur's scuznet to include an ESP2866. An all-in-one SCSI bus connected hard-drive replacement that provided SD storage and wifi would be pretty neat!
  16. markyb86

    SE FTP issues

    Hello! My Macintosh SE has a Farallon EtherMac SE card in it. This installation of System 7 has been used on and off for about 8 years, with no hardware changes. I have 4 MB of RAM installed, running 7.0.1 . I have used Fetch 2.1.2 many times in the past to download or upload files to my FreeNAS server. It's running FreeNAS 8.3.2. Lately, I have not been able to complete a download. I can poke through directories and never run into any issues. But when I start a download, it will begin to download the file at like 4096 bytes a second, get about 70k of the download, and then the download seems to stop, while the speed counts down slowly one or two bytes at a time, until the download is aborted because "the pipe was broken". I have been experiencing issues like this this year and I can't seem to figure it out. It does this on any FTP server I try as well. Any program that uses the internet behaves in a similar way, but Fetch is the only one where I can actually see this disconnect and the download speed drop off. Reminds me of internet explorer 4's downloads back in the dial up days. Anyone fix something like this before? I hope the card isn't bad. I have tried different cables old and new and a few different switches of different eras.
  17. techknight

    PowerBook 1xx Wireless Modem

    You could probably get away with the WiFi modem firmware, so everything is treated like AT commands on the serial side. that way the machine would think its still a modem. anyways, Not sure why your still keeping the RJ11 jack? id replace that with an RP-SMA connector so you could install a wireless antenna on the rear, if you wanted. another thing to think about in the future is replacing the ESP8266 with a Pi zero W instead. that way, the Powerbook side would still see a serial port, but its a serial port to the Pi itself. so then Pi could run the web proxy, and other things, like the MacIPPi environment. Then you have a self-contained system without the need of a helper PC hanging by externally. Caveat being the RS232 is probably not the fastest. so it would be quite slow id imagine. But hey, better than nothing.
  18. techknight

    Apple custom ASIC dissection, imaging and analysis

    actually, I think the Commodore SID chip needs properly reverse engineered. The clones that are out there, do not sound the same.
  19. elbaroni

    Mac Mini G4 SSD

    Ah, brilliant David — thanks. ive also managed to find this horror show: https://www.amazon.com/128GB-KingSpec-2-5-inch-SM2236-Controller/dp/B0091T4ZWU but the price is insane for 120gb.
  20. davidg5678

    Mac Mini G4 SSD

    I think you can do this with an mSATA to 2.5" IDE converter and a cheap mSATA SSD. This should also be cheaper than the product sold by OWC. https://www.amazon.com/mSATA-44pin-Notebook-Laptop-Enclosure/dp/B01GRMUQRG/ref=pb_allspark_session_sims_desktop_147_3/132-4666466-5741617?_encoding=UTF8&pd_rd_i=B01GRMUQRG&pd_rd_r=b8cea2cc-0f30-4312-9904-168d53a04931&pd_rd_w=NSwgW&pd_rd_wg=Rnoab&pf_rd_p=e500004d-dce5-4973-9afd-bba519c83f08&pf_rd_r=BJ7WR0Z053PXV77T0B7C&psc=1&refRID=BJ7WR0Z053PXV77T0B7C https://www.amazon.com/Kingston-120G-SSDNOW-UV500-MSATA/dp/B07CFRCKFN/ref=pd_bxgy_img_2/139-7974699-0572325?_encoding=UTF8&pd_rd_i=B07CFRCKFN&pd_rd_r=292de73a-c8a5-4493-a171-d5287bba8a80&pd_rd_w=CI0Vm&pd_rd_wg=ckBZl&pf_rd_p=ce6c479b-ef53-49a6-845b-bbbf35c28dd3&pf_rd_r=P7BPY6A1X6V4SH97H7M1&psc=1&refRID=P7BPY6A1X6V4SH97H7M1
  21. elbaroni

    Mac Mini G4 SSD

    And would something like this help?
  22. davidg5678

    Bondi Clamshell!

    I'm waiting for another battery pack to arrive in the mail at the moment, but as soon as I make a working battery, I promise to make a thread detailing the (more difficult than expected) process. ...OK -I'll describe the melted battery here too. What happened is that after I spot-welded the entire battery pack, I had a hard time getting the plastic shell to snap closed. It turns out there are at least two revisions of these batteries, (one with orange cells, and one with green ones) It looks like the green cell variant is easier to work with, but I had the orange one. While pressing the plastic clips together, a tiny piece of insulation must have been scaped off one of the cells, because the next thing I knew, I could see a red-orange glow coming through the almost closed plastic shell. The nickel-metal strips ended up getting so hot that they melted and acted like fuses before things could get even worse, but this was enough to destroy three of the 18650s and make a pool of molten solder fuse to a battery cell. The wires I soldered to the nickel strips fell off because the solder melted after getting so hot. The plastic casing also partially melted in this area from the heat. I hope to try again, but this scary (and really expensive) experience was more than enough to put me off from the project for over a month! I guess the main takeaway for me was that the 18650s are really dangerous, and if anything goes slightly wrong, they are enough to ruin your day! I think the iBook just uses the main battery to run the clock, so getting a new battery should fix this issue. There might also be a capacitor that keeps time between battery swaps, but I cannot remember if that applies here.
  23. Hi all. A Mac Mini question. I’ve recently acquired a Mini G4 1.25, which is the first one: PowerMac10,1. I want to use the thing as a bridge server from modern Mac to 68k. Everymac lists this as having an Ultra ATA/100 storage interface. OWC no longer seems to stock an SSD for this - they still sell their legacy product in a 3.5 form factor, but not the 2.5” required for the mini. Am I out of luck with internal solutions? Grateful for hints/advice.
  24. LaPorta

    Macintosh 128K Sad Mac Error Code 047A80

    I only discovered the discrepancy AFTER soldering in the chip, so I probably blew it. I have about ten more to try if we cook up another scheme. Let me know what I think we should try and I can. I do have a scope if need be. To make this easier, here’s a link to my original thread:
  25. cmelloni

    SE/30 Jailhouse vertical bars and other issues

    I have exactly the same problem on a Mac/30 after recapping. The machine was not working when I got it, so I'm not sure if the video was OK before the recap or not. I don't have a solution yet, but I'm planning to (1) Re check the Video ROM and tracks even if the board is clean and in good condition, (2) test the motherboard on a different CRT. It's unlikely to be a faulty display, but just to eliminate the possibility (3) test the VRAMs. (4) Maybe J12 connector problem... I will posted if I have some news.
  26. All, Since this was the first time I worked on the analog sweep board, I put together a recapping map. Hope this helps someone else! Rick ANALOG_PCB_630-0525.pdf
  1. Load more activity
×