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Recent content by dochilli

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    TashTwenty: Single-Chip DCD (Hard Disk 20) Interface

    You could try to program the 1704 with a pickit3 with this software: http://kair.us/projects/pickitminus/ It worked for me.
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    Macintosh Classic II recap needed?

    I would measure the voltages at the floppy port. You need 4.85 V to boot a mac.
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    Nullmodem Cable RS422 to RS232 ...

    This could be helpful:
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    TashTwenty: Single-Chip DCD (Hard Disk 20) Interface

    Thank you for all your feedback! First I tried pickitminus with my Pickit 3 and that worked! I could program the 1704. The only problem is, that only some of my SD-cards could be used with the the sparkfun sd board. I knew about that problem, but had a little hope, that the 1704 could solve it...
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    TashTwenty: Single-Chip DCD (Hard Disk 20) Interface

    Can anybody describe how you did the programming of a 1704. With MPLAB 8.92 it does not work, with the 1825 I had no problems. And the pickit 3 stand alone 3.10 I can not select a 1704, but the 1825 works. Did you use MPLAB X?
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    Macintosh Classic won't start

    Check the solder joints of the power connector. I had one classic where they were broken and the AB did not get 240 V.
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    Mac plus question..

    The first mac plus had 1MB RAM. The case had the same color like the 128k or the 512k. Later there was a case with platinum color. The main difference to the 512k was a SCSI port and a larger ROM. AFAIK there were two or three different ROM versions.
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    Why is this SE so unhappy?

    But a SE logic board is often in good condition. I did not see a SE with an exploded battery (like a lot of SE/30s).
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    Why is this SE so unhappy?

    The ROMs should be taken out and checked for corrosion. Perhaps a cleaning may help. You can burn new ROMs with an adapter an 27C010 Eeproms. https://68kmla.org/bb/index.php?threads/macintosh-se-eeprom-to-rom-adapter.37766/
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    TashRouter: An AppleTalk Router

    Could this be used as a Localtalk-Ethernet bridge? The old Asante bridges became expensive in the last years...
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    Back Porting the Classic ROM to the SE

    As far as I know, the SE has a 256 kB ROM am the Classic a 512 kB. May be this is a problem? For the SE there is a adapter pcb to use Epromms. https://68kmla.org/bb/index.php?threads/macintosh-se-eeprom-to-rom-adapter.37766/
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    Suitable boot floppy for SE/30

    Cleaning of a floppy disk drive:
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    TashIO: Clone of BeeHive Technologies's ADB I/O

    My tests were successfull. With a Pascal program that measures temperatures I could read analog voltages in port B and all four channels. Many thanks to tashtari and aladds for the development of soft- and hardware. Now I will try to develop my own Pascal program that can measure forces on a...
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    TashIO: Clone of BeeHive Technologies's ADB I/O

    Thank you! I will try this.
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    TashIO: Clone of BeeHive Technologies's ADB I/O

    Does anybody of you have a working copy of the ADB_Io_Software.sit.hqx file? I am building a waspIO (Aladds) and wanted to test the function with some software. Should we copy the software to macintoshgarden?
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