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...
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?
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.
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/
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/
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...
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?