Hi Tom,
Have you successfully confirmed the functionality of your second serial
card? Is it an M8650, M8655, or something else? If you can toggle in a
quick serial echo test to confirm it can receive characters, that'd be a
good start. Sounds like it has no trouble sending characters, which is a
good sign.
Another thing would be to confirm that the boot block did get loaded
correctly. I might also double-check that the image you're using has
already had the proper handler installed.
Best of luck,
Kyle
On Sun, Apr 30, 2017 at 12:37 PM, Tom Moss via cctalk <cctalk at
classiccmp.org
wrote:
Hi All,
I'm in the process of building and restoring a PDP-8/e, and now I've got a
second serial card I'd like to give OS/8 a try.
I'm pretty sure I've got the boot loader entered properly, and the address
+ baud rates set correctly on the PDP and PC.
When I start os8diskserver with "./os8disk -1 ../disks/diagpack2.rk05", it
gives the welcome message. When I start the 8/e, It says:
Booting...
Done sending block 0
^ and appears to freeze there. (the 8/e doesn't halt)
I've got a RS-232 tester (blinky light box) hooked up to the port, which
seems to indicate that nothing is being sent after Block 0 has been sent.
Does anyone know what's going on, or what I'm doing wrong?
Regards,
-Tom