Re: [M100] Cassette relay 1 Model 100

[Joshua O'Keefe]

> On Feb 4, 2022, at 7:10 PM, Rob  wrote:
> I'm just playing around with the basic software. The question I have, is 
> there a peek and poke to turn on relay 1.

I've spent pretty much no time on cassette functions for personal reasons but 
as far as I'm aware the high level way to control the cassette motor is the 
BASIC command "MOTOR", which can be called as "MOTOR ON" or "MOTOR OFF".  It is 
documented on page 160 of the User's Guide.

You could also rummage around that fancy new disassembly of the ROM to find out 
what it's up to when it does that:

https://github.com/z88dk/techdocs/blob/master/targets/m100/m100.asm#L7563

Re: [M100] Cassette relay 1 Model 100

[Rob]

Hi I'm just playing around with the basic software. The question I have, is 
there a peek and poke to turn on relay 1. Also I like a command (peek location) 
to check if the relay is on or off.The basic language is all new to me.Thank 
youRobSent from my Bell Samsung device over Canada's largest network.

Re: [M100] How to delete then re-install VirtualT 1.6

[Tom Wilson]

Yes, Virtual-T uses the Application Data folder.
To get to Application Data, open a File Explorer window and type %appdata%
into the address bar.


[image: image.png]

Down at the bottom, you should find "virtualt".

The file is a simple text file, so you can view it with Notepad. You can
either delete the file completely or edit the lines related to the Rex
Flash file. Note the \\ instead of single \ for directory separators. Make
sure to use that format, or the prefs file may not load properly when you
restart Virtual-T.


Tom Wilson
wilso...@gmail.com
(619)940-6311



On Fri, Feb 4, 2022 at 11:24 AM Joshua O'Keefe 
wrote:

> On Feb 4, 2022, at 10:37 AM, b...@pigford.org wrote:
> My laptop is not organized like you suggest.  I have tried to move folders
> to make it look like your examples but I have not been successful.
>
>
> I'm not much of a Windows person these days but the location of AppData
> can be determined, if your system is configured in a highly unusual way:
>
> https://www.freecodecamp.org/news/appdata-where-to-find-the-appdata-folder-in-windows-10/
>
> If VirtualT's Windows version takes advantage of the AppData facility of
> the OS, you may find something there.
>
>

Re: [M100] Tandy Model 100/102 modem pickup line

[Peter Vollan]

FYI, pulses are not DTMF.

On Fri, 4 Feb 2022 at 03:37, Cedric Amand  wrote:

> Hello Steve, Hello everyone
>
> Thanks again really for taking the time... We all have lives and I really
> appreciate.
> I did some more research (isn't that what we all like in this hobby) and
> here is what I came up with.
>
> - I have for sure a Belgian, European, Model 102. no doubt about it.
> - My little homemade PABX (phone exchange) is flawless, it works with
> other modems of the era or plain analog phones.
> - With a "US" BIOS (not sure which) and the REX#, the modem part is
> completely broken. This is especially obvious if you hit F4 in TELCOM, the
> M102 start to make awful noise (without cable, just on it's own!) and the
> program seems crashed (needs reset/reboot).
>
> From there I tried;
>
> - Removing the REX# (which I wouldn't have done without everyone's support
> here) ; problem is the same
> - Interestingly, "TERM" (F4) in TELCOM also still crashes !
>
> Then obviously, what I tried;
>
> - The seller did gave me my original BIOS, just marked "EU" (if I can give
> you a version i'd gladly do it, I can also dump it if that's of any use the
> the community)
>
> Now... I guess I'm "stock" again.
>
> This changes a lot of things.
>
> The TELCO program changes a lot !
> Interestingly, is has no more F1 or F2 features, F2 was called "CALL" (it
> allowed me to do DTMF pulses), the feature is not there at all anymore (?!)
> Hitting F4 (TERM) does not make any noise now, and does not crash.
>
> I was able to make a link between my USR 56K and the M102, thru my PABX,
> by using the ANSW mode in the M102.
> I have a proper 300bps link, hows "CONNECT" on the USrobotics, and i can
> see the characters I type on both sides.
> (it's not yet a real useful communication but the basics are there, from
> now on I can manage !)
>
> (So I wanted to explain all that in great details first in case it ever
> helps someone.)
>
> Then the question remains ; *why* did my original owner change the BIOS to
> use REX#
> Is that mandatory ? Wdyt Steve ?
> Is there a way I could put a "name" on my BIOSes (version, revision ? is
> there a place or a CALL where this shows up ?)
> What would happen if I put back the REX# with my current ("EU") BIOS ?
> Does anyone have any idea why the F1/F2 (CALL) functions in TELCO
> disappeared when I switched bios ?
>
> That's a lot of questions I know :)
>
> Le ven. 4 févr. 2022 à 12:04, Stephen Adolph  a
> écrit :
>
>> Cedric, who did you buy it from?  I can go through my emails to find out
>> the history.
>> Thx Steve
>>
>>>
>>
>>

Re: [M100] How to delete then re-install VirtualT 1.6

[Joshua O'Keefe]

> On Feb 4, 2022, at 10:37 AM, b...@pigford.org wrote:
> My laptop is not organized like you suggest.  I have tried to move folders to 
> make it look like your examples but I have not been successful. 

I'm not much of a Windows person these days but the location of AppData can be 
determined, if your system is configured in a highly unusual way:
   
https://www.freecodecamp.org/news/appdata-where-to-find-the-appdata-folder-in-windows-10/

If VirtualT's Windows version takes advantage of the AppData facility of the 
OS, you may find something there.

Re: [M100] How to delete then re-install VirtualT 1.6

[bob]

Ken,

 

My laptop is not organized like you suggest.  I have tried to move folders to 
make it look like your examples but I have not been successful.  

 

NOTE: I do have it working from a directory as follows:

C:/virtualt-win32-v1.6/

but creating a REX.bin file seems to require the directory structure seen in 
the ‘memory options’ and that completely eludes me.

And virtualt.prefs is nowhere to be found.  But maybe File Explorer search does 
not work well.

 

I will work on it some more and report back in a while.  

Best regards,

Bob

 

From: M100  On Behalf Of Ken Pettit
Sent: Thursday, February 03, 2022 5:29 PM
To: m100@lists.bitchin100.com
Subject: Re: [M100] How to delete then re-install VirtualT 1.6

 

Hey Bob,

Okay, I think you need to delete your VirtualT preferences file.  I had to boot 
my Windows Virtual Machine (and here I was having such a good day up until that 
point) to figure out where it is saved.

You should have something like C:\Documents and 
Settings\{user_name}\Application Data\virtualt and within should be a 
virtualt.prefs file.  If you delete (or rename) that file, then VirtualT will 
"forget" that you ever had a REX file.

Ken

On 2/3/22 2:22 PM, b...@pigford.org   wrote:

Thanks, Steve!

I get the following message:

 

 “Could not open REX file C:/Program 
Files(x86)/VirtualT/virtual-win32-v1.6/T200/”

 

VT1.6 will still run, but I get this same message when I close the program.

 

I see that “virtual-win32-v1.6” is on my C:/ root directory, but not in the 
“Program Files(x86)” directory, and there is no “VirtualT” sub directory there 
either.

 

I created a “VirtualT” directory in the “Program Files(x86)” directory and 
tried to install again.  I get this message next:

“Compressed (zipped) Folders was unable to create the specified directory.  
Ensure that the directory does not already exist, and that the path entered us 
valid.”

 

Thanks for your help.

 

   Bob

 

From: M100   
 On Behalf Of Stephen Adolph
Sent: Thursday, February 03, 2022 4:01 PM
To: m...@bitchin100.com  
Subject: Re: [M100] How to delete then re-install VirtualT 1.6

 

Hi Bob,

I think you just unzip it, and a folder structure is created.

you don't really have to install it, you just go into the folders, and run the 
VirtuaT.exe file.

 

give that a try!

Steve

 

On Thu, Feb 3, 2022 at 3:58 PM mailto:b...@pigford.org> > 
wrote:

I apologize, but I can not find any instructions on how to get VirtualT loaded 
into my 64bit Win10 box after downloading the .zip file from source forge.

Again, I apologize for my ignorance.  I used to be smarter than this.

Bob

 

Re: [M100] Fwd: European T102 - different!

[Stephen Adolph]

Brian, I'll send you some more roms.  Would be great to get them all posted.

On Fri, Feb 4, 2022 at 9:22 AM Brian K. White  wrote:

> This must be where I got the UK rom I just mentioned. Same filename and
> date.
> --
> bkw
>
> On 2/4/22 07:54, Stephen Adolph wrote:
> > popping this email back onto the list.
> >
> > As I go through my files, I have found several different main roms
> > from M100 and T102.  Would be good to document them by checksum or
> > something.
> >
> >
> > -- Forwarded message -
> > From: *Stephen Adolph* 
> > Date: Fri, Sep 25, 2020 at 4:39 PM
> > Subject: Re: [M100] European T102 - different!
> > To: 
> >
> >
> > received a ROM image from a UK T102, and the rom is really different!
> > I've attached it here.
> > Large area of difference in the ~5100h to ~5700h area, which is TELCOM
> >
> > On Thu, Sep 24, 2020 at 1:34 PM Josh Malone 
> wrote:
> >
> > On Thu, Sep 24, 2020 at 1:31 PM Stephen Adolph
> >  wrote:
> >
> >
> >
> > here you can see the different code in silkscreen, and a
> > variable resistor mounted above the main ROM.
> >
> >
> > Huh - interesting. Yeah, curious about the changes on that
> > machine. Do keep us posted!
> >
> > -Josh
> >
>
>

Re: [M100] Fwd: European T102 - different!

[Brian K. White]

This must be where I got the UK rom I just mentioned. Same filename and 
date.

--
bkw

On 2/4/22 07:54, Stephen Adolph wrote:

popping this email back onto the list.

As I go through my files, I have found several different main roms 
from M100 and T102.  Would be good to document them by checksum or 
something.



-- Forwarded message -
From: *Stephen Adolph* 
Date: Fri, Sep 25, 2020 at 4:39 PM
Subject: Re: [M100] European T102 - different!
To: 


received a ROM image from a UK T102, and the rom is really different!
I've attached it here.
Large area of difference in the ~5100h to ~5700h area, which is TELCOM

On Thu, Sep 24, 2020 at 1:34 PM Josh Malone  wrote:

On Thu, Sep 24, 2020 at 1:31 PM Stephen Adolph
 wrote:



here you can see the different code in silkscreen, and a
variable resistor mounted above the main ROM.


Huh - interesting. Yeah, curious about the changes on that
machine. Do keep us posted!

-Josh

Re: [M100] Tandy Model 100/102 modem pickup line

[Brian K. White]

Excellent! Mystery solved!

I would love to add any other language/country roms to my Y2K page, but 
I don't know how you can dump it without an eprom programmer.


I found one rom-to-serial program but I think it probably only does the 
option rom not the main rom. I haven't tried it yet.

https://ftp.whtech.com/club100/eme/romcom.100

I thought Steve or someone posted a BASIC program here that could do it 
but it was a while ago and I can't find it now.


I don't think what you have is actually a general "European" version 
like I was saying, but probably a more specific region, possibly even 
specifically Belgium. I found I also had a UK version of T102 as well as 
US. And probably that UK version isn't for all of Europe.


The rex docs are explicit and clear that it doesn't support any European 
models. I bet it's not trivial to support each different version. Plus 
Steve would probably need to have an example of each unit to test. We 
may not even have rom maps for the EU roms for the different machines, 
which he would also need.


The previous owner probably tried to use a US rom simply to be able to 
use REX#, and was willing to accept having some things break in order to 
get that.


--
bkw

On 2/4/22 06:37, Cedric Amand wrote:

Hello Steve, Hello everyone

Thanks again really for taking the time... We all have lives and I 
really appreciate.
I did some more research (isn't that what we all like in this hobby) and 
here is what I came up with.


- I have for sure a Belgian, European, Model 102. no doubt about it.
- My little homemade PABX (phone exchange) is flawless, it works with 
other modems of the era or plain analog phones.
- With a "US" BIOS (not sure which) and the REX#, the modem part is 
completely broken. This is especially obvious if you hit F4 in TELCOM, 
the M102 start to make awful noise (without cable, just on it's own!) 
and the program seems crashed (needs reset/reboot).


 From there I tried;

- Removing the REX# (which I wouldn't have done without everyone's 
support here) ; problem is the same

- Interestingly, "TERM" (F4) in TELCOM also still crashes !

Then obviously, what I tried;

- The seller did gave me my original BIOS, just marked "EU" (if I can 
give you a version i'd gladly do it, I can also dump it if that's of any 
use the the community)


Now... I guess I'm "stock" again.

This changes a lot of things.

The TELCO program changes a lot !
Interestingly, is has no more F1 or F2 features, F2 was called "CALL" 
(it allowed me to do DTMF pulses), the feature is not there at all 
anymore (?!)

Hitting F4 (TERM) does not make any noise now, and does not crash.

I was able to make a link between my USR 56K and the M102, thru my PABX, 
by using the ANSW mode in the M102.
I have a proper 300bps link, hows "CONNECT" on the USrobotics, and i can 
see the characters I type on both sides.
(it's not yet a real useful communication but the basics are there, from 
now on I can manage !)


(So I wanted to explain all that in great details first in case it ever 
helps someone.)


Then the question remains ; *why* did my original owner change the BIOS 
to use REX#

Is that mandatory ? Wdyt Steve ?
Is there a way I could put a "name" on my BIOSes (version, revision ? is 
there a place or a CALL where this shows up ?)

What would happen if I put back the REX# with my current ("EU") BIOS ?
Does anyone have any idea why the F1/F2 (CALL) functions in TELCO 
disappeared when I switched bios ?


That's a lot of questions I know :)

Le ven. 4 févr. 2022 à 12:04, Stephen Adolph > a écrit :


Cedric, who did you buy it from?  I can go through my emails to find
out the history.
Thx Steve

[M100] Fwd: European T102 - different!

[Stephen Adolph]

popping this email back onto the list.

As I go through my files, I have found several different main roms from
M100 and T102.  Would be good to document them by checksum or something.


-- Forwarded message -
From: Stephen Adolph 
Date: Fri, Sep 25, 2020 at 4:39 PM
Subject: Re: [M100] European T102 - different!
To: 


received a ROM image from a UK T102, and the rom is really different!
I've attached it here.
Large area of difference in the ~5100h to ~5700h area, which is TELCOM

On Thu, Sep 24, 2020 at 1:34 PM Josh Malone  wrote:

> On Thu, Sep 24, 2020 at 1:31 PM Stephen Adolph 
> wrote:
>
>>
>>
>> here you can see the different code in silkscreen, and a variable
>> resistor mounted above the main ROM.
>>
>>
> Huh - interesting. Yeah, curious about the changes on that machine. Do
> keep us posted!
>
> -Josh
>


UK_main_rom_102.bin
Description: Binary data

Re: [M100] Tandy Model 100/102 modem pickup line

[Cedric Amand]

Sure, anything that can help the community,

CAT NO 26-3803
Serial 701400021

I just wanted to know if my problem was hardware of software, it seems to
be software - clearly the US rom breaks the modem ( and interestingly, it
also adds features like F2 pulse dialing in TELCOM, which my EU ROM does
not have. (I said DMTF in my previous mail, I meant PULSE of course))

I'll probably revert to US ROM & REX# once I've documented (probably a
video) the process of reviving and making, real, proper, modem calls with
this equipment and a few others. I just find it cute to have this wok for
real again. I don't know the situation in the US but here it's becoming
close to impossible to even have a proper PSTN line (most are VOIP on top
of cable modems), obviously none of them support pulse dialing anymore, so
well, my project "to make it work again like back in the day" is a
challenge of its own.


Le ven. 4 févr. 2022 à 13:42, Stephen Adolph  a
écrit :

> A snip from the notes section at the rex# wiki:
>
>
>   Notes
>   =
>   Model 100:
>   * In Europe and UK, and probably elsewhere, there are newer versions of 
> M100 that have different boards.
>   * Model numbers are 26-3801B and 26-3802B.
>   * REX# does not function correctly in these models, due to the 
> significantly different main ROM.
>
> I am recalling that the work to get REX# to support these versions of M100
> is significant.  It would require identifying all the rom calls and
> correcting them, and testing them.  Basically documenting this new main rom.
>
> You say this is a T102.  Can you tell us the model number?
>
> It makes sense that if there is a B variant of the M100, with a different
> ROM then there is probably something similar for T102.
>
> It would be tricky and crash prone to try and switch main roms with a rex
> installed.  You would have to deinstall rexmgr in order to use the original
> rom.
>
> Thanks.
>
> Steve
>
>
> On Friday, February 4, 2022, Stephen Adolph  wrote:
>
>> The EU rom is really really different.  Rex doesnt work with that rom.
>> Previous owner valued rex more than modem.
>> Steve
>>
>>
>> On Friday, February 4, 2022, Cedric Amand  wrote:
>>
>>> Hello Steve, Hello everyone
>>>
>>> Thanks again really for taking the time... We all have lives and I
>>> really appreciate.
>>> I did some more research (isn't that what we all like in this hobby) and
>>> here is what I came up with.
>>>
>>> - I have for sure a Belgian, European, Model 102. no doubt about it.
>>> - My little homemade PABX (phone exchange) is flawless, it works with
>>> other modems of the era or plain analog phones.
>>> - With a "US" BIOS (not sure which) and the REX#, the modem part is
>>> completely broken. This is especially obvious if you hit F4 in TELCOM, the
>>> M102 start to make awful noise (without cable, just on it's own!) and the
>>> program seems crashed (needs reset/reboot).
>>>
>>> From there I tried;
>>>
>>> - Removing the REX# (which I wouldn't have done without everyone's
>>> support here) ; problem is the same
>>> - Interestingly, "TERM" (F4) in TELCOM also still crashes !
>>>
>>> Then obviously, what I tried;
>>>
>>> - The seller did gave me my original BIOS, just marked "EU" (if I can
>>> give you a version i'd gladly do it, I can also dump it if that's of any
>>> use the the community)
>>>
>>> Now... I guess I'm "stock" again.
>>>
>>> This changes a lot of things.
>>>
>>> The TELCO program changes a lot !
>>> Interestingly, is has no more F1 or F2 features, F2 was called "CALL"
>>> (it allowed me to do DTMF pulses), the feature is not there at all anymore
>>> (?!)
>>> Hitting F4 (TERM) does not make any noise now, and does not crash.
>>>
>>> I was able to make a link between my USR 56K and the M102, thru my PABX,
>>> by using the ANSW mode in the M102.
>>> I have a proper 300bps link, hows "CONNECT" on the USrobotics, and i can
>>> see the characters I type on both sides.
>>> (it's not yet a real useful communication but the basics are there, from
>>> now on I can manage !)
>>>
>>> (So I wanted to explain all that in great details first in case it ever
>>> helps someone.)
>>>
>>> Then the question remains ; *why* did my original owner change the BIOS
>>> to use REX#
>>> Is that mandatory ? Wdyt Steve ?
>>> Is there a way I could put a "name" on my BIOSes (version, revision ? is
>>> there a place or a CALL where this shows up ?)
>>> What would happen if I put back the REX# with my current ("EU") BIOS ?
>>> Does anyone have any idea why the F1/F2 (CALL) functions in TELCO
>>> disappeared when I switched bios ?
>>>
>>> That's a lot of questions I know :)
>>>
>>> Le ven. 4 févr. 2022 à 12:04, Stephen Adolph  a
>>> écrit :
>>>
 Cedric, who did you buy it from?  I can go through my emails to find
 out the history.
 Thx Steve

>

Re: [M100] Tandy Model 100/102 modem pickup line

[Stephen Adolph]

A snip from the notes section at the rex# wiki:


  Notes
  =
  Model 100:
  * In Europe and UK, and probably elsewhere, there are newer versions
of M100 that have different boards.
  * Model numbers are 26-3801B and 26-3802B.
  * REX# does not function correctly in these models, due to the
significantly different main ROM.

I am recalling that the work to get REX# to support these versions of M100
is significant.  It would require identifying all the rom calls and
correcting them, and testing them.  Basically documenting this new main rom.

You say this is a T102.  Can you tell us the model number?

It makes sense that if there is a B variant of the M100, with a different
ROM then there is probably something similar for T102.

It would be tricky and crash prone to try and switch main roms with a rex
installed.  You would have to deinstall rexmgr in order to use the original
rom.

Thanks.

Steve


On Friday, February 4, 2022, Stephen Adolph  wrote:

> The EU rom is really really different.  Rex doesnt work with that rom.
> Previous owner valued rex more than modem.
> Steve
>
>
> On Friday, February 4, 2022, Cedric Amand  wrote:
>
>> Hello Steve, Hello everyone
>>
>> Thanks again really for taking the time... We all have lives and I really
>> appreciate.
>> I did some more research (isn't that what we all like in this hobby) and
>> here is what I came up with.
>>
>> - I have for sure a Belgian, European, Model 102. no doubt about it.
>> - My little homemade PABX (phone exchange) is flawless, it works with
>> other modems of the era or plain analog phones.
>> - With a "US" BIOS (not sure which) and the REX#, the modem part is
>> completely broken. This is especially obvious if you hit F4 in TELCOM, the
>> M102 start to make awful noise (without cable, just on it's own!) and the
>> program seems crashed (needs reset/reboot).
>>
>> From there I tried;
>>
>> - Removing the REX# (which I wouldn't have done without everyone's
>> support here) ; problem is the same
>> - Interestingly, "TERM" (F4) in TELCOM also still crashes !
>>
>> Then obviously, what I tried;
>>
>> - The seller did gave me my original BIOS, just marked "EU" (if I can
>> give you a version i'd gladly do it, I can also dump it if that's of any
>> use the the community)
>>
>> Now... I guess I'm "stock" again.
>>
>> This changes a lot of things.
>>
>> The TELCO program changes a lot !
>> Interestingly, is has no more F1 or F2 features, F2 was called "CALL" (it
>> allowed me to do DTMF pulses), the feature is not there at all anymore (?!)
>> Hitting F4 (TERM) does not make any noise now, and does not crash.
>>
>> I was able to make a link between my USR 56K and the M102, thru my PABX,
>> by using the ANSW mode in the M102.
>> I have a proper 300bps link, hows "CONNECT" on the USrobotics, and i can
>> see the characters I type on both sides.
>> (it's not yet a real useful communication but the basics are there, from
>> now on I can manage !)
>>
>> (So I wanted to explain all that in great details first in case it ever
>> helps someone.)
>>
>> Then the question remains ; *why* did my original owner change the BIOS
>> to use REX#
>> Is that mandatory ? Wdyt Steve ?
>> Is there a way I could put a "name" on my BIOSes (version, revision ? is
>> there a place or a CALL where this shows up ?)
>> What would happen if I put back the REX# with my current ("EU") BIOS ?
>> Does anyone have any idea why the F1/F2 (CALL) functions in TELCO
>> disappeared when I switched bios ?
>>
>> That's a lot of questions I know :)
>>
>> Le ven. 4 févr. 2022 à 12:04, Stephen Adolph  a
>> écrit :
>>
>>> Cedric, who did you buy it from?  I can go through my emails to find out
>>> the history.
>>> Thx Steve
>>>

>>>
>>>

Re: [M100] Tandy Model 100/102 modem pickup line

[Stephen Adolph]

The EU rom is really really different.  Rex doesnt work with that rom.
Previous owner valued rex more than modem.
Steve


On Friday, February 4, 2022, Cedric Amand  wrote:

> Hello Steve, Hello everyone
>
> Thanks again really for taking the time... We all have lives and I really
> appreciate.
> I did some more research (isn't that what we all like in this hobby) and
> here is what I came up with.
>
> - I have for sure a Belgian, European, Model 102. no doubt about it.
> - My little homemade PABX (phone exchange) is flawless, it works with
> other modems of the era or plain analog phones.
> - With a "US" BIOS (not sure which) and the REX#, the modem part is
> completely broken. This is especially obvious if you hit F4 in TELCOM, the
> M102 start to make awful noise (without cable, just on it's own!) and the
> program seems crashed (needs reset/reboot).
>
> From there I tried;
>
> - Removing the REX# (which I wouldn't have done without everyone's support
> here) ; problem is the same
> - Interestingly, "TERM" (F4) in TELCOM also still crashes !
>
> Then obviously, what I tried;
>
> - The seller did gave me my original BIOS, just marked "EU" (if I can give
> you a version i'd gladly do it, I can also dump it if that's of any use the
> the community)
>
> Now... I guess I'm "stock" again.
>
> This changes a lot of things.
>
> The TELCO program changes a lot !
> Interestingly, is has no more F1 or F2 features, F2 was called "CALL" (it
> allowed me to do DTMF pulses), the feature is not there at all anymore (?!)
> Hitting F4 (TERM) does not make any noise now, and does not crash.
>
> I was able to make a link between my USR 56K and the M102, thru my PABX,
> by using the ANSW mode in the M102.
> I have a proper 300bps link, hows "CONNECT" on the USrobotics, and i can
> see the characters I type on both sides.
> (it's not yet a real useful communication but the basics are there, from
> now on I can manage !)
>
> (So I wanted to explain all that in great details first in case it ever
> helps someone.)
>
> Then the question remains ; *why* did my original owner change the BIOS to
> use REX#
> Is that mandatory ? Wdyt Steve ?
> Is there a way I could put a "name" on my BIOSes (version, revision ? is
> there a place or a CALL where this shows up ?)
> What would happen if I put back the REX# with my current ("EU") BIOS ?
> Does anyone have any idea why the F1/F2 (CALL) functions in TELCO
> disappeared when I switched bios ?
>
> That's a lot of questions I know :)
>
> Le ven. 4 févr. 2022 à 12:04, Stephen Adolph  a
> écrit :
>
>> Cedric, who did you buy it from?  I can go through my emails to find out
>> the history.
>> Thx Steve
>>
>>>
>>
>>

Re: [M100] Tandy Model 100/102 modem pickup line

[Cedric Amand]

Hello Steve, Hello everyone

Thanks again really for taking the time... We all have lives and I really
appreciate.
I did some more research (isn't that what we all like in this hobby) and
here is what I came up with.

- I have for sure a Belgian, European, Model 102. no doubt about it.
- My little homemade PABX (phone exchange) is flawless, it works with other
modems of the era or plain analog phones.
- With a "US" BIOS (not sure which) and the REX#, the modem part is
completely broken. This is especially obvious if you hit F4 in TELCOM, the
M102 start to make awful noise (without cable, just on it's own!) and the
program seems crashed (needs reset/reboot).

>From there I tried;

- Removing the REX# (which I wouldn't have done without everyone's support
here) ; problem is the same
- Interestingly, "TERM" (F4) in TELCOM also still crashes !

Then obviously, what I tried;

- The seller did gave me my original BIOS, just marked "EU" (if I can give
you a version i'd gladly do it, I can also dump it if that's of any use the
the community)

Now... I guess I'm "stock" again.

This changes a lot of things.

The TELCO program changes a lot !
Interestingly, is has no more F1 or F2 features, F2 was called "CALL" (it
allowed me to do DTMF pulses), the feature is not there at all anymore (?!)
Hitting F4 (TERM) does not make any noise now, and does not crash.

I was able to make a link between my USR 56K and the M102, thru my PABX, by
using the ANSW mode in the M102.
I have a proper 300bps link, hows "CONNECT" on the USrobotics, and i can
see the characters I type on both sides.
(it's not yet a real useful communication but the basics are there, from
now on I can manage !)

(So I wanted to explain all that in great details first in case it ever
helps someone.)

Then the question remains ; *why* did my original owner change the BIOS to
use REX#
Is that mandatory ? Wdyt Steve ?
Is there a way I could put a "name" on my BIOSes (version, revision ? is
there a place or a CALL where this shows up ?)
What would happen if I put back the REX# with my current ("EU") BIOS ?
Does anyone have any idea why the F1/F2 (CALL) functions in TELCO
disappeared when I switched bios ?

That's a lot of questions I know :)

Le ven. 4 févr. 2022 à 12:04, Stephen Adolph  a
écrit :

> Cedric, who did you buy it from?  I can go through my emails to find out
> the history.
> Thx Steve
>
>>
>
>

Re: [M100] Tandy Model 100/102 modem pickup line

[Brian K. White]

Disregard my last post. I'm an idiot and didn't notice that you aren't 
Cedric. Sorry!

--
bkw

On 2/4/22 04:23, jonathan.y...@telia.com wrote:

Hi,

I have a US M100 but Stephen wanted to be sure I had a US model before he sold 
me the REXCPM, and he said it wouldn't work in a European model.  He didn't 
mention selling me a 'European' version so I assume one didn't exist back then.

I think there are some hardware differences as well, and he sent me some 
pictures.

Jonathan

Original Message
From : b.kenyo...@gmail.com
Date : 2022-02-04 - 03:06 (CEST)
To : m...@bitchin100.com
Subject : Re: [M100] Tandy Model 100/102 modem pickup line

Wow, ok, I hadn't considered that someone had replaced the main rom.
All bets are off in that case.

I would not be surprised if the modem doesn't work at all with the wrong
rom installed. The main rom has to match the hardware and the North
American main rom does not match the European hardware, and the modem is
definitely one of the things, like the keyboard, which is different
between countries.

You only do something hacky like that fully accepting that you are
breaking some things in order to get some other things. But you didn't
make that choice, you're stuck with something someone else did and then
sold to you.

I would definitely start with putting the unit back to stock condition,
meaning put an EU main rom back in and remove the rex#, just as a first
diagnostic step just to establish a baseline even if you want to go back
to the hacked-up condition later.

Did the seller at least supply the original rom with the unit? If not,
it might be taped inside.

I don't know of any copies of the EU rom for download. Asking here or on
two facebook groups is probably your best chance to find one.
https://www.facebook.com/groups/Model.T.Computers

This one in particular has a lot fewer, but mostly European members:
https://www.facebook.com/groups/olivettim10

I think it can be dumped out the serial port with a BASIC program, so
anyone should be able to dump it for you without having to desolder the
chip or use an eprom burner. I'll try to find the basic program for
dumping the rom out the serial port, that way you can make it as easy as
possible for someone to do the favor by having some directions ready to go.

If the REX# really is incompatible with the EU main rom, and Steve can't
produce an EU version of the REX# firmware, then you'll probably just
have to choose one or the other for that unit, either have the hardware
all work properly, or have REX# on that unit.

--
bkw

On 2/3/22 17:40, Cedric Amand wrote:

Thanks, i'll try all that.
I must admit I don't fully understand what the REX# does, as I've only
use it to make backups of the RAM, but it's features go way beyond that,
so it's unclear to me if - for example - the tsdos that comes with would
be "US minded".

  From what I understand, the original owner (which may even be in this
list) had to replace the belgian/european ROM with another ROM, most
likely a US one, to be able to use the REX# ( that's what I got from
what he told me, don't quote me on this )

All these changes could, maybe, break my modem.

However i've been looking at the schematics of the modem part and all of
this is as simple as can be, it's really purely analog in many areas,
and there is no way on earth any of this is software controller. I mean
: the thing doesn't care if the dial tone is 440, 600 Hz or anything (at
least looking at the hardware I see no way this would be measured, even
less handled by software)

So if I take for granted my M102 is a Belgian.european one (it' has the
sticker of the telco!), I guess the electronics where adapted to our
particular voltages.
What could be a possibility if that some of these are now out of spec

One final comment ; if I hit F4 (TERM) in TELCOM, the M102 starts to
emit an awful noise (like if it was connected to a data line !) it does
that even when the M102 is not connected to anything ( I mean, no wire
connected to it at all) It is also, afaics, completely crashed (i have
to reset/reboot)
Is that "normal" ?
That would point to a problem with ROM/REX...


thanks again for taking the time to help weirdo that wants his analog
modem to work :)



Le jeu. 3 févr. 2022 à 23:32, Brian K. White mailto:b.kenyo...@gmail.com>> a écrit :

 I can tell you one thing for sure, the REX has no effect on the modem.

 But you can prove that to yourself by just removing it. It doesn't hurt
 anything and it won't even lose it's programming. Just pop it out, and
 see that it made no difference.

 Have you tested the line with a plain analog telephone?

 Have you verified the modem cable doesn't have a broken wire?

 Since you are talking about dialing vs answering, is the the ANS-ORIG
 switch in the ORIG position? (Answer vs Originate)

 Measure the voltage between tip & ring when the the modem is
 on-hook. It
 should be 48vdc

 Measure the current on either tip 

Re: [M100] Tandy Model 100/102 modem pickup line

[Stephen Adolph]

Cedric, who did you buy it from?  I can go through my emails to find out
the history.
Thx Steve

On Thursday, February 3, 2022, Cedric Amand  wrote:

> Thanks, i'll try all that.
> I must admit I don't fully understand what the REX# does, as I've only use
> it to make backups of the RAM, but it's features go way beyond that, so
> it's unclear to me if - for example - the tsdos that comes with would be
> "US minded".
>
> From what I understand, the original owner (which may even be in this
> list) had to replace the belgian/european ROM with another ROM, most likely
> a US one, to be able to use the REX# ( that's what I got from what he told
> me, don't quote me on this )
>
> All these changes could, maybe, break my modem.
>
> However i've been looking at the schematics of the modem part and all of
> this is as simple as can be, it's really purely analog in many areas, and
> there is no way on earth any of this is software controller. I mean : the
> thing doesn't care if the dial tone is 440, 600 Hz or anything (at least
> looking at the hardware I see no way this would be measured, even less
> handled by software)
>
> So if I take for granted my M102 is a Belgian.european one (it' has the
> sticker of the telco!), I guess the electronics where adapted to our
> particular voltages.
> What could be a possibility if that some of these are now out of spec
>
> One final comment ; if I hit F4 (TERM) in TELCOM, the M102 starts to emit
> an awful noise (like if it was connected to a data line !) it does that
> even when the M102 is not connected to anything ( I mean, no wire connected
> to it at all) It is also, afaics, completely crashed (i have to
> reset/reboot)
> Is that "normal" ?
> That would point to a problem with ROM/REX...
>
>
> thanks again for taking the time to help weirdo that wants his analog
> modem to work :)
>
>
>
> Le jeu. 3 févr. 2022 à 23:32, Brian K. White  a
> écrit :
>
>> I can tell you one thing for sure, the REX has no effect on the modem.
>>
>> But you can prove that to yourself by just removing it. It doesn't hurt
>> anything and it won't even lose it's programming. Just pop it out, and
>> see that it made no difference.
>>
>> Have you tested the line with a plain analog telephone?
>>
>> Have you verified the modem cable doesn't have a broken wire?
>>
>> Since you are talking about dialing vs answering, is the the ANS-ORIG
>> switch in the ORIG position? (Answer vs Originate)
>>
>> Measure the voltage between tip & ring when the the modem is on-hook. It
>> should be 48vdc
>>
>> Measure the current on either tip or ring when the modem is off-hook. It
>> should be about 20ma, at around 9vdc (actually a wide range from 3 to 12)
>>
>
>

Re: [M100] Tandy Model 100/102 modem pickup line

[Brian K. White]

I thought you said it was a Belgian Model 102? Now it's a US Model 100?

Or are you just saying you also own a US Model 100?

Did you also try the US Model 100 or any other machines on your POTS setup?

--
bkw

On 2/4/22 04:23, jonathan.y...@telia.com wrote:

Hi,

I have a US M100 but Stephen wanted to be sure I had a US model before he sold 
me the REXCPM, and he said it wouldn't work in a European model.  He didn't 
mention selling me a 'European' version so I assume one didn't exist back then.

I think there are some hardware differences as well, and he sent me some 
pictures.

Jonathan

Original Message
From : b.kenyo...@gmail.com
Date : 2022-02-04 - 03:06 (CEST)
To : m...@bitchin100.com
Subject : Re: [M100] Tandy Model 100/102 modem pickup line

Wow, ok, I hadn't considered that someone had replaced the main rom.
All bets are off in that case.

I would not be surprised if the modem doesn't work at all with the wrong
rom installed. The main rom has to match the hardware and the North
American main rom does not match the European hardware, and the modem is
definitely one of the things, like the keyboard, which is different
between countries.

You only do something hacky like that fully accepting that you are
breaking some things in order to get some other things. But you didn't
make that choice, you're stuck with something someone else did and then
sold to you.

I would definitely start with putting the unit back to stock condition,
meaning put an EU main rom back in and remove the rex#, just as a first
diagnostic step just to establish a baseline even if you want to go back
to the hacked-up condition later.

Did the seller at least supply the original rom with the unit? If not,
it might be taped inside.

I don't know of any copies of the EU rom for download. Asking here or on
two facebook groups is probably your best chance to find one.
https://www.facebook.com/groups/Model.T.Computers

This one in particular has a lot fewer, but mostly European members:
https://www.facebook.com/groups/olivettim10

I think it can be dumped out the serial port with a BASIC program, so
anyone should be able to dump it for you without having to desolder the
chip or use an eprom burner. I'll try to find the basic program for
dumping the rom out the serial port, that way you can make it as easy as
possible for someone to do the favor by having some directions ready to go.

If the REX# really is incompatible with the EU main rom, and Steve can't
produce an EU version of the REX# firmware, then you'll probably just
have to choose one or the other for that unit, either have the hardware
all work properly, or have REX# on that unit.

--
bkw

On 2/3/22 17:40, Cedric Amand wrote:

Thanks, i'll try all that.
I must admit I don't fully understand what the REX# does, as I've only
use it to make backups of the RAM, but it's features go way beyond that,
so it's unclear to me if - for example - the tsdos that comes with would
be "US minded".

  From what I understand, the original owner (which may even be in this
list) had to replace the belgian/european ROM with another ROM, most
likely a US one, to be able to use the REX# ( that's what I got from
what he told me, don't quote me on this )

All these changes could, maybe, break my modem.

However i've been looking at the schematics of the modem part and all of
this is as simple as can be, it's really purely analog in many areas,
and there is no way on earth any of this is software controller. I mean
: the thing doesn't care if the dial tone is 440, 600 Hz or anything (at
least looking at the hardware I see no way this would be measured, even
less handled by software)

So if I take for granted my M102 is a Belgian.european one (it' has the
sticker of the telco!), I guess the electronics where adapted to our
particular voltages.
What could be a possibility if that some of these are now out of spec

One final comment ; if I hit F4 (TERM) in TELCOM, the M102 starts to
emit an awful noise (like if it was connected to a data line !) it does
that even when the M102 is not connected to anything ( I mean, no wire
connected to it at all) It is also, afaics, completely crashed (i have
to reset/reboot)
Is that "normal" ?
That would point to a problem with ROM/REX...


thanks again for taking the time to help weirdo that wants his analog
modem to work :)



Le jeu. 3 févr. 2022 à 23:32, Brian K. White mailto:b.kenyo...@gmail.com>> a écrit :

 I can tell you one thing for sure, the REX has no effect on the modem.

 But you can prove that to yourself by just removing it. It doesn't hurt
 anything and it won't even lose it's programming. Just pop it out, and
 see that it made no difference.

 Have you tested the line with a plain analog telephone?

 Have you verified the modem cable doesn't have a broken wire?

 Since you are talking about dialing vs answering, is the the ANS-ORIG
 switch in the ORIG position? (Answer vs Originate)

 Measure the voltage bet

Re: [M100] Tandy Model 100/102 modem pickup line

[jonathan.y...@telia.com]

Hi,

I have a US M100 but Stephen wanted to be sure I had a US model before he sold 
me the REXCPM, and he said it wouldn't work in a European model.  He didn't 
mention selling me a 'European' version so I assume one didn't exist back then.

I think there are some hardware differences as well, and he sent me some 
pictures.

Jonathan
>Original Message
>From : b.kenyo...@gmail.com
>Date : 2022-02-04 - 03:06 (CEST)
>To : m...@bitchin100.com
>Subject : Re: [M100] Tandy Model 100/102 modem pickup line
>
>Wow, ok, I hadn't considered that someone had replaced the main rom.
>All bets are off in that case.
>
>I would not be surprised if the modem doesn't work at all with the wrong 
>rom installed. The main rom has to match the hardware and the North 
>American main rom does not match the European hardware, and the modem is 
>definitely one of the things, like the keyboard, which is different 
>between countries.
>
>You only do something hacky like that fully accepting that you are 
>breaking some things in order to get some other things. But you didn't 
>make that choice, you're stuck with something someone else did and then 
>sold to you.
>
>I would definitely start with putting the unit back to stock condition, 
>meaning put an EU main rom back in and remove the rex#, just as a first 
>diagnostic step just to establish a baseline even if you want to go back 
>to the hacked-up condition later.
>
>Did the seller at least supply the original rom with the unit? If not, 
>it might be taped inside.
>
>I don't know of any copies of the EU rom for download. Asking here or on 
>two facebook groups is probably your best chance to find one.
>https://www.facebook.com/groups/Model.T.Computers
>
>This one in particular has a lot fewer, but mostly European members:
>https://www.facebook.com/groups/olivettim10
>
>I think it can be dumped out the serial port with a BASIC program, so 
>anyone should be able to dump it for you without having to desolder the 
>chip or use an eprom burner. I'll try to find the basic program for 
>dumping the rom out the serial port, that way you can make it as easy as 
>possible for someone to do the favor by having some directions ready to go.
>
>If the REX# really is incompatible with the EU main rom, and Steve can't 
>produce an EU version of the REX# firmware, then you'll probably just 
>have to choose one or the other for that unit, either have the hardware 
>all work properly, or have REX# on that unit.
>
>-- 
>bkw
>
>On 2/3/22 17:40, Cedric Amand wrote:
>> Thanks, i'll try all that.
>> I must admit I don't fully understand what the REX# does, as I've only 
>> use it to make backups of the RAM, but it's features go way beyond that, 
>> so it's unclear to me if - for example - the tsdos that comes with would 
>> be "US minded".
>> 
>>  From what I understand, the original owner (which may even be in this 
>> list) had to replace the belgian/european ROM with another ROM, most 
>> likely a US one, to be able to use the REX# ( that's what I got from 
>> what he told me, don't quote me on this )
>> 
>> All these changes could, maybe, break my modem.
>> 
>> However i've been looking at the schematics of the modem part and all of 
>> this is as simple as can be, it's really purely analog in many areas, 
>> and there is no way on earth any of this is software controller. I mean 
>> : the thing doesn't care if the dial tone is 440, 600 Hz or anything (at 
>> least looking at the hardware I see no way this would be measured, even 
>> less handled by software)
>> 
>> So if I take for granted my M102 is a Belgian.european one (it' has the 
>> sticker of the telco!), I guess the electronics where adapted to our 
>> particular voltages.
>> What could be a possibility if that some of these are now out of spec
>> 
>> One final comment ; if I hit F4 (TERM) in TELCOM, the M102 starts to 
>> emit an awful noise (like if it was connected to a data line !) it does 
>> that even when the M102 is not connected to anything ( I mean, no wire 
>> connected to it at all) It is also, afaics, completely crashed (i have 
>> to reset/reboot)
>> Is that "normal" ?
>> That would point to a problem with ROM/REX...
>> 
>> 
>> thanks again for taking the time to help weirdo that wants his analog 
>> modem to work :)
>> 
>> 
>> 
>> Le jeu. 3 févr. 2022 à 23:32, Brian K. White > > a écrit :
>> 
>> I can tell you one thing for sure, the REX has no effect on the modem.
>> 
>> But you can prove that to yourself by just removing it. It doesn't hurt
>> anything and it won't even lose it's programming. Just pop it out, and
>> see that it made no difference.
>> 
>> Have you tested the line with a plain analog telephone?
>> 
>> Have you verified the modem cable doesn't have a broken wire?
>> 
>> Since you are talking about dialing vs answering, is the the ANS-ORIG
>> switch in the ORIG position? (Answer vs Originate)
>> 
>> Measure the voltage between tip & ring w