Simple Console Modifications

[Simple Console Modifications]

Here is something I ran across today taking apart an old wireless mouse card. 

 

https://media.digikey.com/pdf/Data Sheets/Cypress PDFs/CY7C63722,23,43.pdf

 

this may work for PS/2 and USB keyboard/mouse support. 

granted it is obsolete now but ... I may fool around with it see what shakes loose.

 

[FINALGROM99 Building the card but sofware related questions]

Cross your fingers

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[FINALGROM99 Building the card but sofware related questions]

Got the files transferred to the RPI. Got the AVRdude partially programmed, when my wife woke me up. She's so awesome. More on the morrow. Sleep well TInstrumentians.

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[ZENOBOARD]

A Wild Challenge has appeared.

 

Roll Initiative!

[Program Recorder]

Thank you kindly to all who were working with me on this! I was so excited to have this work.

[Simple Console Modifications]

Following up on the internal fan. I would recommend doing a project like this.

 

https://www.electroschematics.com/temperature-controlled-fan/

 

I might tweak some values to make it work with a 5volt 1amp fan. h

[FINALGROM99 Building the card but sofware related questions]

I emailed Ralph and got a response today with the completed files. I will be working with avrdude tonight to get the FG99 finally programmed. Thanks to all who contributed! will keep you posted.

[HRD 4000B]

even though I have no PEB yet. I'm gonna say put me down for one. Preassembled if you please :-). Thank you kindly for your work on this.

[ZENOBOARD]

I am Noob. That being established, the Zenoboard looks like a solution for (as was previously mentioned), saving space. Is there a working version? the notes state that there was a single trace line where a fault existed but should be easy to overcome. This looks like a very fun project to undertake. 

[Bored doodles at work]

That is the joy of aging. The ability to see the beauty in a wider age range with regards to the female form.

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[Program Recorder]

Thanks Wierd... I just noticed the misspelling and found it to make sense ... Wy Erd. Weird Wired.. like it.. kinda like my brain sometimes. Lol

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[Simple Console Modifications]

and I see what you mean about the heat . mines only been on an hour or so ....  and the case is very warm over the power supply... gonna install a couple of fans. Thanks for that!

[Program Recorder]

recording to tape successful. 

Checking Data..

DATA OK

[Program Recorder]

so... helps if you don't  try and take everything from ground.

 

got signal to the TI

 

"DATA OK"

 

[Program Recorder]

Just now, Mehridian Sanders said:

swapped em, but still no TI output. Lemme make sure that the signal is still getting through.

 

hahahahahahah I derped the connection... hang on reworking connection

 

[Program Recorder]

1 minute ago, wierd_w said:

I could be a bonehead, and have REC and PLAY mixed in my head... When you play the wav file, do you hear the playback on the TI?  If not-- Swap the cables in your thingymajig.

swapped em, but still no TI output. Lemme make sure that the signal is still getting through.

 

[Program Recorder]

first attempt is a "ERROR - NO DATA FOUND", even at 125% output.... gonna try some volume work.

 

[Program Recorder]

TI REC Cable Tip -|
                           |-->PC Cable Tip
TI Playback  Tip --|
 
 
TI REC cable sleave -> PC Cable sleave
 
TI Playback sleave -> NC
 
 
The grounding issue is that the REC tip is not connected to ground properly, so when it is plugged straight into the PC, it has a "Floating ground" and produces an awful hum. This makes it very hard for the TI to properly decode the sent audio, especially since the PC is not really loud enough. (barely loud enough with VLC doing the playback, and volume turned to 130%. Still not as loud as the TI belts it out though.)
 
From what I can gather, there is a common ground inside the program recorder, which makes this problem magically go away once both leads are plugged.  However, that common ground does not exist plugging the REC cable straight into a PC's headphone jack-- hence the hum.  The goal here is to connect the REC cable's ground with the playback cable's ground, so that something like a common ground is obtained using the TI's electrical system exclusively.  It works.
 
 

Well here it is.

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[Program Recorder]

PC2TI v0.1
 
On the stripped male connector the red wire is tip, white is base.
 
White (Earphone) TI wire connected to Tip.
Red (Mic) TI wire connected to Base.
 
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@wierd_w ok. Tell me the connections please.

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[What would you do with this?]

Ok I found this self powered peripheral enclosure and am unsure as to which peripheral would be the best to add.

 

If you had 0 peripherals what would you add?

 

The Zip drive is just there to show space.

 

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[FINALGROM99 Building the card but sofware related questions]

I checked the for the file in the directory listed

[email protected]:~ $ cd /home/pi/
[email protected]:~ $ ls -a
.              .claws-mail  .gnupg    .pp_backup   .Xauthority
..             .config      .local    .profile     .xsession-errors
.bash_history  Desktop      MagPi     Public       .xsession-errors.old
.bash_logout   Documents    Music     Templates
.bashrc        Downloads    Pictures  .thumbnails
.cache         finalgrom    .pki      Videos
[email protected]:~ $ 

Couldn't find the file. Is there a way to create it?

 

oh damn my work buddy reformatted this to Buster... ok lemme put Raspbian on here.

 

[Building the Finalgrom99 and the 32K sidecar.]

2 hours ago, jedimatt42 said:

Yep, you don't 'burn' these and then plug them in... the leads are like hairs compared to the PLCC stuff. 

 

They are ISP (In System Programmable)

 

Have you tried asking for the binaries - result of the build, that you are having trouble with?  I'm sure Ralph has it.  Or you could file issues, or PRs against the github repos, so the source material can be fixed for future people to not even need your proposed guide.  That would be ideal.  And is achievable.

 

[email protected]

Somehow this simple solution eluded me. I was so focused on following the instructions, I failed to find an alternative solution that would have made things easier. Thanks @jedimatt42sorry you had to explain this. 

 

I have emailed the support email link requesting the end result files of the Python Build.

- "PACKAGE.HEX"

- "UPDATE.PLD"

 

Thank you all for your patience with me on this. 

[Building the Finalgrom99 and the 32K sidecar.]

That would be nice. It is already soldered down though :/ the github guide leads me to believe that the programming is done after it is soldered to the board.

Granted, the FAQ is good, and well laid out. I think I am gonna do a "The Modern TI-99/4a Mod Maker Dummies Guide". Laying out my mistakes and how they can be overcome.

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[Simple Console Modifications]

Fast and dirty mockup

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[FINALGROM99 Building the card but sofware related questions]

.bash_profile or .profile are hidden files in your home directory. (All Unix files starting with a period are hidden; show them with ls -a.) It depends on the Unix flavor and used shell which of the files actually set the PATH. You can use any text editor to change them.

@mizapf If you're using RPI linux how would you edit your path? This is the current hang up. I made sure I had 2.7 python installed but am getting the same error as above Errno 2

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