Recent content by hideehoo

Now I need to buy a FloppyEmu to see if the passthrough port works. :) Or flash a floppy only firmware on the Fujinet.

Success! Was simply a bad PIC16F1704. Programmed a new one, did a little testing before swapping it in, and all better now.

But !CS you mean the !ENABLE line from the Mac? It's floating in this case and essentially low, so I would expect the Read LED to be lit since the RD line is also floating and low. I was just curious is you have an code to try to actively drive this lines that may have cause this blinking...

SCK always stays low, no activity at all. I see MOSI and CS pulse a bit at startup like they are trying to talk to the SD card, and then CS starts outputting that flash code after a few seconds. Programming with MPELAB X IPE v6.0 and a Chinese PICkit3. Using 20220621-1704.HEX from the latest...

Built up my new design, but no dice yet. Getting the 0000001 blink code (no SD card detected?) on startup. @tashtari, should Pin 10 on the PIC always be outputting a SPI clock signal, or does it stop once the SPI SD init fails and CS (pin 7) start outputting that blink code? I not seeing...

Cleaned up an dual drive 800K SE that came in a big lot today. Novy Systems "Magic" 25 MHz 68030 + FPU + 4MB RAM was hiding inside.

Did you ever do a validation build of your V2 design? Looking to throw a few boards on my next JLC order.

Been away from the Mac scene for a bit, but ran across this while working on the new Fujinet design. Nice work @tashtari Since my SmartPortSD with integrated DB19 connector fits so nicely on the back of a classic Mac, I did a quick respin of that design to turn it into a TashTwenty with an...

Sounds like a bad RTC chip or crystal.

Fixed!  Got my $2 for 10 KM4164 memory from China and had at it.  Piggy backing on F9 cleared the 0200?0 error, but then I got a 041101 (Mod3 test).  Piggybacking could clear that one, but when I actually replaced the chips, it cleared.  Ended up replacing four chips in total, all the Apple...

Picked up a chinese desoldering station a few years back. http://www.memotronics.com/vacuum-desoldering-rework-station-digital-temperature-controlled-dual-lcd-new/ Best money I ever spent on this hobby.  Make jobs like this infinitely easier than using a hand pump or braid.

Ya, I had already been through three cycles of flux, solder, braid, IPA scrub in that photo above.  Top pads and a few of the bottom ones cleaned up fine, it's just a couple of the really corroded ones nearest the cap being stubborn.

Thanks folks, new (used) memory is in the mail.

Since I need to wait on RAM chips for the 128K, I figured I would work on one of my extra nasty SE/30 boards.   LOTS of corrosion from the leaky caps.  No problem popping them off with the hot air station, pads cleaned up fine.  30 minute of vinegar and a toothbrush got most of the fuzzy off...

Finally getting around to fixing the 128K.  It chimes on startup, but then immediately goes to Sad Mac. Looks like a 0200?0 code, so I'm guessing memory in either F9, F10, F11, or F12 according to https://udcf.gla.ac.uk/~gwm1h/Error_Codes/Sad_Mac_Codes.html Any further hits given the video...