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#4233196 TIPI Usage and Support

Posted by mr_gw454 on Wed Mar 6, 2019 9:01 AM

Someone found a new bug, until I publish the fix you will get odd errors if you create directories named 'TIPI' because currently I mistake them for the drive mapping meta-data files that go by that name.



Thank you for fixing this!  The errors I was having had me puzzled until it was officially identified. 


Thank you to Greg as well for allowing me to share a video the issue.

#4232438 Help! Weirdness and insanity!

Posted by mr_gw454 on Tue Mar 5, 2019 5:37 AM

If this FDC card has socketed IC's, take each one out and test it on a Mini Pro or some similar device to see if there are problems there. You haven't stated a controller brand so at this time I am assuming a TI controller, so unless there has been mods done in the past, I would say that all the IC's are soldered straight to the board, which will make it much harder to diagnose. I just got two Foundation Memory cards functional again last week by testing and finding some bad IC's, due to age and storage.


Yes, it is a TI controller.  I'm looking for any working loaner to see if it helps with the issue.

#4147872 GCC for the TI

Posted by mr_gw454 on Thu Nov 1, 2018 3:35 PM

Hello everyone.  Grabbed the latest version and ran the install.sh script (preceded with 'MAKEINFO=missing' as mentioned above to avoid that same error).  It made it this far and failed:

make[3]: Entering directory '/home/mrg/source/TI/build/gcc-4.4.0/build/libiberty/testsuite'
make[3]: Nothing to be done for 'install'.
make[3]: Leaving directory '/home/mrg/source/TI/build/gcc-4.4.0/build/libiberty/testsuite'
make[2]: Leaving directory '/home/mrg/source/TI/build/gcc-4.4.0/build/libiberty'
/bin/bash: line 3: cd: tms9900/libstdc++-v3: No such file or directory
Makefile:10623: recipe for target 'install-target-libstdc++-v3' failed
make[1]: *** [install-target-libstdc++-v3] Error 1
make[1]: Leaving directory '/home/mrg/source/TI/build/gcc-4.4.0/build'
Makefile:2475: recipe for target 'install' failed
make: *** [install] Error 2
=== Installation complete ===

Is the libstdc++-v3 library not built as part of this script?


Thanks for any help anyone can provide!

#4091902 SIO Wifi modem with esp8266

Posted by mr_gw454 on Wed Aug 15, 2018 8:57 AM

Yesterday I was asked about the SIOWifi-Thing inside my 1030, so I am posting pictures of the inside of the modified 1030 (I am a little embarrassed of my amateur job ;-)  ) so I might get someone else inspired in trying something similar.




Thank you for posting this!

#4083142 SDrive Max SIO Wiring Question

Posted by mr_gw454 on Tue Jul 31, 2018 5:36 PM

Last update -- thank you to DrVenkman for pointing out my obvious blunder.  I corrected the SIO cable connections and everything works great!  I did not add the diode yet (to make it compatible alongside other disk storage devices) but may do so at some point.  Big thank you to remowilliams for the 3D printed case.  Fit's perfectly.


I also did a speed test using RWTEST.COM (screen shot attached).



Attached Files

#4080676 Altirra 3.00 released

Posted by mr_gw454 on Fri Jul 27, 2018 4:25 PM

Phaeron -- thanks for all the updates.  This is a fantastic emulator!  A bonus is that it runs extremely well in wine 3.x in Linux.

#4034413 Making a video on TIPI tomorrow (Fri 5/25)

Posted by mr_gw454 on Fri May 25, 2018 12:10 PM

I'm looking forward to this as well.  If there's any easy navigation system for browsing folders, selecting a program to run/launch, etc., please include that if you can.  It looks like there may be options for F18A users, but what about non F18A users?



#3976111 ESP8266 WiFi Modem Working!

Posted by mr_gw454 on Fri Mar 2, 2018 11:50 AM


If someone can get me some decent firmware to burn on my ESP8266 to emulate a modem, I'd love to continue my UberGROM PoC with TIMXT.  Sounds like the Zimodem is good?  Site/docs?  If I can get it working with my TTL to USB cable on my PC, maybe I can work with Insane Multitasker to work a little bit on the buffer/character loss with the UberGROM board.  I haven't touched the project since last year, and shift838 is also working on his in parallel.  


As I recall there were still three outstanding issues:

1) Good solid AT command firmware

2) TIMXT buffer tweaks needed

3) TIMXT PoC still needed a RS232 on the side car (Tim can easily fix this)


If we get this solution going we could easily have a Telecom/BBS cartridge that will work with a F18 equipped console with 32K.


Here's the firmware I use:



It has a very robust set of AT commands -- in fact, once flashed you can upgrade the firmware over Wifi using an AT command!


Allen Huffman spent quite a bit of time experimenting with various ESP8266 modules and this firmware (though the for the TRS-80 Color Computer).  Much of what he talks about in his articles can be applied to many different mahcines:





Hope this helps!

#3976046 ESP8266 WiFi Modem Working!

Posted by mr_gw454 on Fri Mar 2, 2018 10:25 AM

I finally got the doc pounded out for this with screenshots and all.  26 pages!  How to wire it, hardware/software requirements, cable requirements and how to code it...


a link will be going in my next newsletter for it guys coming soon.  it will also be posted on my site.


I just found this thread and really interested in the work you are doing.  I've been using ESP8266 modules with my TRS-80 Color Computer.  I use the Zimodem firmware and it's been a good experience so far.  I am at the point where I want to use my TI, so I'm interested in seeing the documentation you made.  Did you ever make it available to the public?


I'll be using the serial port on a nanoPEB for now.



#3972617 Issues with DSK2PC

Posted by mr_gw454 on Mon Feb 26, 2018 6:46 AM

In the meantime, is there anyone else with a nanoPEB that could try to load Fred's NPDSK2PC program?  It can either be directly from the CF or using the HDX server.  The goal is for it to load/run and be able to transfer DSK images from the HDX server to the CF card on the nanoPEB.


If it works, perhaps a write up of the steps used so I can try to recreate them?  A couple of screen shots would be great.



#3856100 A Winter Project for 2017

Posted by mr_gw454 on Wed Sep 27, 2017 9:58 AM

I have a project I worked on with the RPi3 called "CocoPi3."  It's based on Raspbian and focuses on TRS-80 Color Computer / MC-10 and Dragon emulation.  It does NOT use RetroPie as a base.  I compile the latest version of MAME (0.189 at the time of this message) as a console application (without the need for X windows) so speed is real good.  I also offer XRoar as another emulator for Coco 2 and Dragon emulation.  In addition, I added a ton of development utilities and a menu system.  There's quite a features packed into it.  There are a few places to download it and the documentation:




I have moved the project a bit further and installed my RPi3 into an actual Coco 3 case and make use of a Coco 3 keyboard to USB adapter (via the use of a Teensy 2.0) controller.  Chris Hawks was the original person who did the work and I leveraged it for my project.

In any case, I'm a fan of the TI-99/4a and the Atari 800XL, so I'm thinking of adding support for those 2 platforms as well.  This would need to include development tools, etc.. 


Here's a link to some pictures of the RPi3 (with the CocoPi3 distribution) in a Coco 3 case running Coco 3, TI-99/4a and Atari 800XL emulation.




#3818538 Atari 1050 questions

Posted by mr_gw454 on Tue Aug 1, 2017 3:55 PM

Yes, the SIO daisy chains computer <---> 1050 <---> SIO2PC.


If you can find SD disks they will work, but these days most of us have US Doublers installed and we use DD disks.  DD disks work fine for SD or DD. Just Don't use HD disks (They won't work).


Hi Kyle22,


I appreciate you confirming the SIO2PC-USB can be daisy-chained to the 1050.  The drive ID for the SIO2PC-USB is done through software, so I would just select the first drive for it and the 2nd drive for the 1050 and I should be good.  Looking forward to testing this. 


Thank you again!

#3804452 Atari 800 - keyboard modes?

Posted by mr_gw454 on Wed Jul 12, 2017 6:34 PM

Could be a stuck CTRL key but might also be a shorted contact on the Mylar below the key mechanism, might be a bad keyboard mulitplex chip (there’s a pair of them on the motherboard next to the keyboard connector) and conceivably could even be a bad POKEY or OS rom, but I think chances of that are pretty low in the absence of other issues.


I went ahead and disassembled the unit and found out all the chips are socketed and I have version "B" BASIC.  In any case, I removed the keyboard and disassembled that as well.  Mylar looked good and checked the area around the CONTROL key.  I also made sure the little spring under the CONTROL key would seat all the way back in it's hole.  Used compressed air to clean the key area and reassembled unit.  Everything appears to be working now, so that made me feel better knowing that it was nothing serious.


Thank you everyone for all your suggestions and help!

#3762309 How many people here worked for Tandy?

Posted by mr_gw454 on Mon May 15, 2017 9:39 AM

I worked for a Radio Shack Computer Center for just over a year.  We were selling Tandy 1000's, Tandy 1200 (HD's), Tandy 3000's, Tandy 6000's and even had a Color Computer 3 on display.  Unfortunately, the company did nothing to promote the Coco 3 during the period I was there.


We did have a large area in store for training and I believe we still had some Model 4's at the time, too.  Service and support were big.  We used to send out and receive equipment back from our repair center all the time.  Radio Shack did take care of the their customers -- at least in the store I was working at.


Overall it was a great experience, though there was a big push to become more IBM like.  In fact, there was a dress code just being initiated as I was leaving.  Blue suits and no facial hair. 

#3755426 TI-99/4a and floppy disk storage options - revisited

Posted by mr_gw454 on Thu May 4, 2017 8:56 AM

Hello everyone,


While searching through some old posts, it still looks like there is no modern floppy storage option for the Ti-99/4a besides the original PEB and some 3rd offering which is no longer available.  For those who program in BASIC, etc., is the use of the cassette (either real or connected to host computer) the only way to save and load programs?


I'm hoping to hear of some good news on this front.