20 Jun
2005
20 Jun
'05
1:25 p.m.
On Sun, 19 Jun 2005, Brad Parker wrote:
On a whim (hey, it's father's day :-) I
decided to try and boot my
dormant 11/44 from the TU58 using the tu58 simulator.
Has anyone done this?
I booted my 11/23+ from the simulated TU58 before. Slow, but it works.
I'm being totally lazy and didn't look at the
M7090 schematics (yet) and
assumed the TU58 20pin header is the same as the console 20pin header.
I also assumed it's RS-232 and not TTL. Further, I assumed it was
running at 38400 baud.
You assumed wrong, mostly. Try 9600 or 19200. I was able to configure
the TU58 simulator to work at 19.2Kbps with my particular setup, which was
very helpful for transferring a lot of data (80 disks worth).
I know my serial port and tu58 simulator are working
since they boot my
11/730 just fine.
It's the baud rate then. Also, make sure you have the serial connections
correct. I just used two wires: one for TX and one for RX. No other
control signals are required, and it works just fine. I used shielded
wire.
--
Sellam Ismail Vintage Computer Festival
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