As far as I can tell, the VLC and Model 60 will boot with a dead DALLAS chip, the Model 90 *WILL NOT* (it hangs on the tests). Having said that, I think you need to leave the VLC plugged in for a bit. It took 2-3 tries to get things going.
When I did all my testing about a month and a half ago, I used a VT320. I’m not sure if I’ve ever tried to talk to a VAXstation with anything other than a DEC terminal. I swapped out my VLC and Model 90 SCSI drives with SCSI2SD boards, I still need to do that with one Model 60, and one AlphaStation. Zane > On Jul 13, 2021, at 12:30 PM, Adrian Graham via cctalk > <[email protected]> wrote: > > Hi folks, > > I'm testing a little BlueSCSI adapter (BlueSCSI <https://scsi.blue/>) which > while being aimed at 68K Macs should also work as an 8 bit target for older > VAXen, it's a newer cheaper SCSI2SD solution and I should point out it > works as intended on a Mac Plus so the module itself is fine. > > Nobody appears to have tested on small VAXen yet so tonight I dug out my > VLC to give it a go. > > Powering up with nothing attached apart from an MMJ/H8571 cable I get > nothing on the console, I'm using PuTTY via a genuine COM1 port on a PC > which is one level above what I used last time I powered the machine up > (FTDI USB adapter to a laptop). Diagnostic LEDs cycle through the tests and > end up at '1111 0011' which according to the manual is 'entering the > console program'. > > Clearly the DALLAS has passed the TOY tests, but if it's not happy would > that stop the console displaying? It doesn't matter how I set S3, next step > I guess is to hook it up to a 'proper' VT. > > Cheers, > > -- > Adrian Graham > Owner of Binary Dinosaurs, the UK's biggest private home computer > collection? > t: @binarydinosaurs f: facebook.com/binarydinosaurs > w: www.binarydinosaurs.co.uk
