11/04 Project

[JCWelch]

So far nothing puts ‘@‘, or anything on the screen.

Sent from my iPad

On Dec 13, 2017, at 10:05 PM, Jerry Weiss <jsw at ieee.org> wrote:

According to the documentation EK-M9312-TM-002 M9312 Bootstrap-Terminator Module Technical Manual
there are two addresses to use for the Console Emulator.

165020 (765020)  for Console with Diagnostics  SW 1 and 7 on
165144 (765144)  for Console w/o Diagnostics   SW 1,5,6,9 on

The switch settings below correspond to xxx004.. which is probably the first drive for the ROM in position 1 and does
not invoke diagnostics.

Have you tried 173000 (773000)?

Jerry


> On Dec 13, 2017, at 8:37 PM, John Welch via cctech <cctech at classiccmp.org> wrote:
> 
> I have bi-directional communication from PC/Hyperterminal.   I forgot about having to tell HyperTerminal to echo characters locally. Anyway, 'a' comes over as 000141 and 'A' comes over as 000101. So far so good.
> However, I have not gotten "@"
> CNTRL+HLT
> CLR
> LAD
> DEP
> CNTRL+INIT
> CNTRL+START -> reads 000002
> CNTRL+BOOT  -> reads 165024
> 
> CLR, 165024 LAD, CTRL/START reads 165024
> 773024 LAD, EXAM, reads 165024
> 
> Reconfigured the switches on the M9312
> 
>     1  2   3   4   5 6   7   8   9   10
>   --- --- --- --- --- --- --- --- --- ---
> S1 Off On  Off Off Off Off Off Off On  Off
> 
> CNTRL+HLT
> CLR
> LAD
> DEP
> CNTRL+INIT
> CNTRL+START -> reads 000002
> CNTRL+BOOT  -> Run light is on, SR Disp light is on,
> CNTRL+HLT reads 173150
> 
> 
> CLR, 165024 LAD, CTRL/START reads 165024
> 773024 LAD, EXAM, reads 165024
> 
> 773024 LAD, 773000 DEP, BUS ERR light comes on.
> 
> Any suggestions?  I have other M9312s I could try.
> 
>> On 12/13/2017 12:38 PM, Henk Gooijen wrote:
>> 
>> Jumping over the settings. They seem OK, as you get the AB in Hyperterm.
>> 
>> That 777564 shows 000200 is also correct (as I remember that): it indicates “transmit buffer empty”.
>> 
>> You can also try it the other way:
>> 
>> * type one character in Hyperterm
>> * check that 777560 has the receiver buffer full flag set (000200)
>> * in 777562 you will see the typed character (in octal)
>> 
>> 773024 showing 165024 rings a bell. IIRC, 165024 is the start address of the monitor on the M9312.
>> 
>> That is the PROM “in the middle” on the board.
>> 
>> I think that if you enter CLR, 165024 LAD, CTRL/START you will get the “@”.
>> 
>> BTW, there is a second start address. One does some diagnostics, the other does not.
>> 
>> My guess that on 773000 and you getting 773002 on the display means that you try to boot
>> 
>> from a “device” that is specified in one of the four PROMs, but the PROM socket is empty …
>> 
>> ------------------------------------------------------------------------
>> *Van:* cctech <cctech-bounces at classiccmp.org> namens John Welch via cctech <cctech at classiccmp.org>
>> *Verzonden:* Wednesday, December 13, 2017 7:23:01 PM
>> *Aan:* cctech at classiccmp.org
>> *Onderwerp:* 11/04 Project
>> I am back in front of the machine:
>> 
>> The M7856 is set thusly:
>>     1  2  3  4  5  6  7  8  9 10
>> -- -- -- -- -- -- -- -- -- -- --
>> S5 DN DN DN UP DN DN UP DN DN UP
>> S3 DN DN UP DN UP UP DN UP DN UP
>> S1 UP UP DN UP DN DN UP UP DN UP
>> S4 UP UP DN DN UP UP DN DN DN UP
>> S2 DN DN UP DN DN UP DN DN -- --
>> 
>> The M9312 is set thusly:
>> 
>>     1  2  3  4  5  6  7  8  9 10
>> -- -- -- -- -- -- -- -- -- -- --
>> S1 UP UP DN DN DN DN UP DN DN DN
>> 
>> This should be 300, 8, Odd, 1
>> I have what I think is null modem between the M7856 cable and a PC
>> running XP with Hyperterm set to 300, 8,O,1
>> 
>> Troubleshooting from the programmers console:
>> CNTRL plus HALT, no bus hang.
>> 
>> CLR, 777566, LAD, 101, DEP, Hyperterm shows: A
>> CLR, 777566, LAD, 102, DEP, Hyperterm shows: AB (the B popped up next to
>> the previous A )
>> 
>> 
>> CLR, 777564, LAD, EXAM, display shows: 000200
>> CLR, 773024, LAD, EXAM, display shows: 165024
>> CLR, 773024, LAD, EXAM, display shows: 165024
>> CLR, 773000, LAD, CNTRL plus START, console says: 173002
>> 
>> I am thinking that the Hyperterm should be seeing an "@" and I should be
>> able to boot from there.
>> 
>> Any thoughts?
>> 
>> Sincerely,
>> John Welch
>> 
> 
> -- 
> Sincerely,
> John Welch
> 281-353-4706 Home
> 713-725-7017 Cell
> :qw
> 

Jerry Weiss
jsw at ieee.org