Q: how to get a serial console from a DEC3000/600

Q: how to get a serial console from a DEC3000/600

Post by Roge » Wed, 02 Jul 2003 21:23:53



Hi all,

I've got a question about getting a serial console up on a DEC3000/600.
I inserted the serial cable with the odd rjXX-ish connecter into the
serial console/line printer port. the other side I put in a rjXX-to-rs232
converter (don't know exactly how it's called) which I connected to the
second serial port of my linux box.
I fired up minicom, made it listen to /dev/ttyS1 with 9600,n,8,1 as
communication parameters.
When I boot the DEC3000/600 (no framebuffer installed) I get *nothing*
over the serial link. the console stays dead.
At the back of the DEC, there's a little switch which should put the
system in a serial-console mode. but neither position of the switch
produce something on the console.
what am I doing wrong ?

thanks in advance
roger

 
 
 

Q: how to get a serial console from a DEC3000/600

Post by Jafir Elkur » Wed, 02 Jul 2003 21:40:53


You don't need to remove the frame buffer.  There is a switch... S3 I
think... on the back of the unit.  Flip that and you have serial console.
You aren't going to be able to run Linux on that box though... maybe *bsd.


Quote:> Hi all,

> I've got a question about getting a serial console up on a DEC3000/600.
> I inserted the serial cable with the odd rjXX-ish connecter into the
> serial console/line printer port. the other side I put in a rjXX-to-rs232
> converter (don't know exactly how it's called) which I connected to the
> second serial port of my linux box.
> I fired up minicom, made it listen to /dev/ttyS1 with 9600,n,8,1 as
> communication parameters.
> When I boot the DEC3000/600 (no framebuffer installed) I get *nothing*
> over the serial link. the console stays dead.
> At the back of the DEC, there's a little switch which should put the
> system in a serial-console mode. but neither position of the switch
> produce something on the console.
> what am I doing wrong ?

> thanks in advance
> roger


 
 
 

Q: how to get a serial console from a DEC3000/600

Post by Roge » Wed, 02 Jul 2003 23:08:16



> You don't need to remove the frame buffer.  There is a switch... S3 I
> think... on the back of the unit.  Flip that and you have serial console.
> You aren't going to be able to run Linux on that box though... maybe *bsd.

I know the dec3000/600 won't boot linux. I'm planning to install netbsd on
it.
I tried toggling the S3 switch, but in either position there doesn't seem
to appear anything at my console.
when I start 'statserial' on /dev/ttyS1 to see activity on the serial
port,I get this result:

Signal  Pin  Pin  Direction  Status  Full
Name    (25) (9)  (computer)         Name
-----   ---  ---  ---------  ------  -----
FG       1    -      -           -   Frame Ground
TxD      2    3      out         -   Transmit Data
RxD      3    2      in          -   Receive  Data
RTS      4    7      out         1   Request To Send
CTS      5    8      in          0   Clear To Send
DSR      6    6      in          1   Data Set Ready
GND      7    5      -           -   Signal Ground
DCD      8    1      in          0   Data Carrier Detect
DTR     20    4      out         1   Data Terminal Ready
RI      22    9      in          0   Ring Indicator

When rebooting the DEC3000/600, only the DSR is going from 0 to 1 to 0 and
back to 1 again.
but I'm a bit puzzled about the TX and RX fields not holding either a 0 or
a 1
maybe you could shed some light on this ?

roger



>> Hi all,

>> I've got a question about getting a serial console up on a DEC3000/600.
>> I inserted the serial cable with the odd rjXX-ish connecter into the
>> serial console/line printer port. the other side I put in a rjXX-to-rs232
>> converter (don't know exactly how it's called) which I connected to the
>> second serial port of my linux box.
>> I fired up minicom, made it listen to /dev/ttyS1 with 9600,n,8,1 as
>> communication parameters.
>> When I boot the DEC3000/600 (no framebuffer installed) I get *nothing*
>> over the serial link. the console stays dead.
>> At the back of the DEC, there's a little switch which should put the
>> system in a serial-console mode. but neither position of the switch
>> produce something on the console.
>> what am I doing wrong ?

>> thanks in advance
>> roger

 
 
 

1. le1 on dec3000/600

I am trying to configure a dec3000/600 as a gateway/router/ftp server.
It has the 2 oem nic cards. NetBSD sees both and I have le0 configured
and working but le1 produces an error. I tried manually configuring it
with ifconfig and all I get is a :Reg did not settle (to x0): x181
message. NetBSD produces the following message upon bootup:
le1 at tc0 slot 4 offset 0x0le: Reg did not settle (to x0): x181

Regards,
--
Ted Sikora
Jtl Development Group

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