Re: How to set DZ11 line speeds under RT-11 V4?

[Fritz Mueller via cctalk]

> On Mar 30, 2018, at 10:37 AM, Fritz Mueller  wrote:
> 
> When SYSGEN-ing RT-11 V4, the only speed initialization options offered for 
> the DZ11 lines are 110 or 300 baud.  Is there a utility or incantation which 
> will allow me to reconfigure these after RT-11 is booted?

So I found that the sysgen process is just setting the value for the DZSP$D 
macro in SYCND.MAC; I can edit this to an appropriate value (7000, taken from 
the .MTGET programed request docs) by hand after sysgen and before assembling 
the monitor and, all the DZ11 lines come up configured at 9600 baud now.

Still haven't found anything that comes out of the box with RT-11 V4 to allow 
tailoring the terminal lines once up and running.  I guess if you want to do 
that you need to write your own small utility.

cheers,
  --FritzM.

How to set DZ11 line speeds under RT-11 V4?

[Fritz Mueller via cctalk]

Hi all,

I've now had some success getting MU-BASIC configured and running on multiple 
terminals under RT-11 V4 in simh, with a hardware configuration similar to that 
in my real PDP-11/45.  I have a serial console + DZ11 in both configurations.

When SYSGEN-ing RT-11 V4, the only speed initialization options offered for the 
DZ11 lines are 110 or 300 baud.  Is there a utility or incantation which will 
allow me to reconfigure these after RT-11 is booted?  I scanned the RT-11 V4 
docs last night, but came up empty (there is an "unsupported" SPEED.SAV in the 
distribution, but it looks like it only works with PDTs, and I couldn't find 
anything tucked away in the SET command or other places either).

It looks like I could write some MACRO code to try and set this using the 
.MTGET/.MTSET programmed requests, but I thought I'd ask here in case there is 
some known prefab way to do this that I missed looking through the docs?

cheers,
  --FritzM.