Jump to content

Hugo Cervantes

New Members
  • Content Count

    7
  • Joined

  • Last visited

Community Reputation

0 Neutral

About Hugo Cervantes

  • Rank
    Combat Commando

Recent Profile Visitors

The recent visitors block is disabled and is not being shown to other users.

  1. Jim, sent you last night some pics and info via email. Just would like to confirm if you received. Tks!!
  2. Still not good luck... I think part of the problem could be my dockbus wiring as I am not using any converter. Could I send you directly (trying not to saturate this forum) by email or other method some pics of my wiring? My email is [email protected] I activated as suggested the debug option, but not getting more information than this when entering SAVE "100.TEST" at my TI-74... which may indicate an issue with wiring, right?
  3. Thanks again for your quick reply... still no luck. I found/commented "#define INCLUDE_CLOCK" as indicated. The only change I noticed is I am getting now E0 I/O ERROR 255 "100". It wouldbe great if you are able to test this latest version on your board as I am almost sure my circuit is fine according with your diagram for SC card. Thanks!
  4. Thanks again Jim. I succesfully implemented the diagram circuit (image above), including ground connection for pins 8 & 9 as you suggested. I was able as well to flash my Arduino UNO with the latest SRC.INO with no problem, so I tested it after connecting my TI-74 with the ribbon cable. Unfortunately I am not able yet to save/load programs. After typing SAVE "100.TEST" with a small program loaded, I am getting E0 I/O ERROR 39 "100". Any ideas/suggetions? During my troubleshooting, I tested my SD card reader with basic Arduino libraries and it works fine (read/write files), so that's not the issue. I tried as well to turn the clock function off (as you indicated on your comment above), however, I was not able to find CONFIG_CLOCK=1 in config.h. Should I look somwhere else? Thanks again for your comments and suggestions. I think I am pretty close to get this working! Hugo
  5. Hey Jim, thanks for your update on this. I am almost ready to start the implementation of the Arduino-based interface for my TI-74. However I have a problem: I have not been able to get the Arduino Data Logger Extension card, but I have the smaller, Micro SD Card Reader generic module. While looking at the documentation provided at your GitHub, I just found under HEXTIr/pcb/Fritzing/ the attached image, showing implementation with this SD card reader. Could I use it instead of the Data Logger following the connection diagram provided there, and if so, would I have to change and/or use a different *.ino program (under HEXTIr/src/) to flash the Arduino UNO from my Windows laptop? Thanks in advance! Hugo
  6. Hi Meinhard, I am extremely interested on replicating your nice and smart solution for the TI-74 Mass Storage Device. Did you have a chance to organize and share your project? Otherwise perhaps some basic wiring/circuit diagram and Arduino coding would be enough? Thanks in advance!
  7. Hi Jeff, Amazing work on creating the interface!! Couple of questions: 1) For those of us with only a regular cassette tape recorder, would that work on, let´s say, manual mode? 2) I recently read about a TI Connectivity USB cable for their latest Graph Calculators (TI-73, TI-83, TI-83 Plus, etc). Do you think there could be a chance for adapting one of those to the TI-74, 95? Thanks! Hugo
×
×
  • Create New...