Recent content by joevt

  1. J

    How to mount DSK images on real hardware? System 7.0.1

    Do the files have correct creator/type codes?
  2. J

    68k Any sampling profilers for Mac 68k?

    The topic of this thread is also discussed at https://68kmla.org/bb/index.php?threads/possible-to-get-the-saved-instruction-address-at-interrupt-time-in-a-time-manager-task.49705
  3. J

    68k CSEND - p2p Chat Application

    For posix in classic Mac OS, there's the GUSI library (Grand Unified Socket Interface) https://68kmla.org/bb/index.php?threads/multi-threaded-network-app-development-on-the-68000.47084/
  4. J

    Netatalk 4.0 - Future-proofing Apple File Sharing

    I would probably write a script to handle the conversion between the git repository and the classic macOS share. - Conversion between Mac Roman and UTF-8. Git doesn't like Mac Roman and CodeWarrior doesn't like UTF-8. - Conversion between CR and LF. Git requires LF for proper diffs and merging...
  5. J

    Connecting eMate to Mac OSX - "there was no response"

    More info: google DTE vs DCE. DTE (Data Terminal Equipment ) is computers, printers, terminals. DCE (Data Circuit-terminating Equipment or Data Communications Equipment) is modems and other data communication equipment. So the null-modem or cross over cable can connect two DTE devices without...
  6. J

    Connecting eMate to Mac OSX - "there was no response"

    Yes. A modem cable would be used to connect a modem to a Mac. A null modem cable is used to connect a Mac to a Mac. I guess an eMate would be in the Mac category. Check the continuity. https://forums.macrumors.com/threads/serial-app-to-old-world-of.2429025/post-33239745
  7. J

    SuperMac Supermatch 17 monitor missing pins

    A monitor with no sense lines might appear as not connected (sense code 7, extended sense code 0x3f = 11 11 11). This might not matter if connected to a graphics controller that is not from a 68K Mac or PowerPC Mac. The sense lines are used for DDC/CI and EDID on newer displays. Maybe you need...
  8. J

    Connecting eMate to Mac OSX - "there was no response"

    Is the serial cable a null-modem cable? I think that's the same as a serial printer cable (Image Writer II) where the Rx on one end is connected to Tx on the other. It's the kind of cable you can use to connect two Macs together. After selecting the correct cable, you need to make sure both...
  9. J

    [Help Needed] My work on an Apple Studio Display M7768 (The Transparent ADC CRT)

    My AllRez project (for Mac OS X) can get VCP info. https://github.com/joevt/AllRez Maybe you can dump the info for your display and post the results here?
  10. J

    ThinkC Locate the current System Folder

    SysEnvRec sysEnv; OSErr err = SysEnvirons (1, &sysEnv); sysVRefNum of SysEnvRec is a working directory ID, not a volume reference ID or a directory reference ID. The currently running System file is always open. So you would get the file reference number (probably just kSystemResFile), and use...
  11. J

    Can You Put a White Phosphor CRT into an IBM 5155 (Portable Personal PC)?

    So the IBM 5155 has an amber CRT for displaying NTSC but it works for non-NTSC in a SE or SE30 and the SE30's CRT can do NTSC using the 5155 CRT module (which is the circuit that controls the CRT and not the CRT itself). That means there's no real difference between a CRT for composite and...
  12. J

    Unknown Card

    googled this: https://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Interface%20Cards/Parallel/Interactive%20Structures%20PKASO/
  13. J

    Need solution for HDI-45 to DB-15 connectors for video out

    Without a diode, the only multi resolution modes available are for VGA and Multiple Scan 13" or 14". The latter requires a line from sense 2 to sense 1 in place of a diode with ground on sense 0. If you have just a ground on sense 0, then it's 640x480 67Hz only.
  14. J

    Blue and White SCSI 2 Drive Issues

    Correction: To debug multi-boot on B&W G3, use this: dev / " " encode-string " AAPL,debug-bootpathsearch" property
  15. J

    Need solution for HDI-45 to DB-15 connectors for video out

    The diagram at #31 says the spacing between rows is 3mm so 2mm plastic spacers should have fit. The fact that the plastic spacers don't fit means the spacing between rows is less than 2mm (which is obvious looking at your PCB). In that case, you could try pin headers of < 2mm, 5 pins...