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Type: Posts; User: JimDrew

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  1. Hi gang! I am going to do a presentation on the...

    Hi gang! I am going to do a presentation on the Teensy64 at the Commodore Retro eXpo (CRX) event in a couple of weeks. See: www.crxevent.com

    Has there been any progress made on making this NTSC...
  2. M.U.L.E was copy-protected and used with EA's...

    M.U.L.E was copy-protected and used with EA's custom sector loader. The disk image you have of it is a crack. Anything that works on the SD2IEC has to use the standard loading routines (no block...
  3. Yeah, something like the SD2IEC would work for a...

    Yeah, something like the SD2IEC would work for a lot of cracked programs, but that's all. Demos, and a lot of programs use custom loader routines.
  4. I don't think you are going to be able to use...

    I don't think you are going to be able to use .d64 image files with games/demos that have custom track loaders (fast loaders). That would require low-level drive support.
  5. I think I will wait on you adding NTSC support...

    I think I will wait on you adding NTSC support before continuing testing. I can not find a single original NTSC game that will load. Every one of them crashes at some point, which also happens when...
  6. The IEC timing of the 1541U2 (and U2+) is exactly...

    The IEC timing of the 1541U2 (and U2+) is exactly the same as a real 1541. It passes all of VICE's IEC timing tests that measure sub-microsecond latency. This could be just a cabling issue.
  7. If you had a SuperCard Pro board and 5.25" PC...

    If you had a SuperCard Pro board and 5.25" PC floppy drive you could write .scp image files to a real disk. You could also use the Zoom Floppy with your real 1541 and a PC to write .g64 image files...
  8. I am sure that the problem I am having is related...

    I am sure that the problem I am having is related to the NTSC requirement. I only have a few disks that work with both NTSC and PAL (auto-detect). I will focus on those.

    Edit: yes, definitely...
  9. Ok, I will try it and get back to you! :) Good...

    Ok, I will try it and get back to you! :)

    Good news! The change you made to CIA2 now allows me to load directories just fine. I started testing some commercial disks. Rapidlok protected disks...
  10. I am unable to get even a disk directory reliably...

    I am unable to get even a disk directory reliably with 1950 commented out. If I put it back in it works the same as it did before, so in my case it makes it worse.

    From an emulation standpoint...
  11. I will try commenting out line 1950. So this is...

    I will try commenting out line 1950. So this is a badlines issue stealing CPU cycles? I am glad you found your 1541 drive didn't work too!

    EDIT: OK, that did not change anything. :( In fact,...
  12. Yeah, I have the code so I can compile it. I...

    Yeah, I have the code so I can compile it. I have tried different ROMs and such already.
  13. That's great. I would have offered to send you a...

    That's great. I would have offered to send you a 1541, but the shipping cost would have been ridiculous from the U.S. to Germany, and it would have never made it there without the drive alignment...
  14. OK, some info for you... Compiled with the...

    OK, some info for you...

    Compiled with the JiffyDOS ROM (and turned off the ROM patches). Now, when I boot up if I type @$ <RETURN> to get a directory the drive comes on, steps to track 18, and...
  15. Responded to your PM!

    Responded to your PM!
  16. Computer? As in a PC to emulate a disk drive? ...

    Computer? As in a PC to emulate a disk drive? Yeah, that's possible. Having more than 1 disk drive also changes the timing a little bit because of the extra pull-up resistor. I don't know how...
  17. I am going to convert my JiffyDOS kernal ROM and...

    I am going to convert my JiffyDOS kernal ROM and put in place of the stock ROM (ROMS.cpp) and try that with a stock drive and a drive that has JiffyDOS in it. I am sure there is just some little...
  18. I already did that earlier. It hangs (most of the...

    I already did that earlier. It hangs (most of the time) with a 1541, and shows the error channel properly on the SD2IEC every time. I actually had it work twice in a row with a 1541 and then 10...
  19. The sketch was to determine if the level shifter...

    The sketch was to determine if the level shifter is working. If the 0v/5v toggle occurs then it will also work correctly for an input. Yes, the shielding is good. I design and prototype hardware...
  20. OK, I wrote a quick test sketch. I don't know...

    OK, I wrote a quick test sketch. I don't know how to do anything on Github because I don't use it myself. Here is the sketch:


    /* Teensy64 IEC pin test
    *
    * November 9, 2017
    * By Jim...
  21. Yes, it compiles just fine and appears to work. ...

    Yes, it compiles just fine and appears to work. I can make a simple test program that toggles the IEC lines high/low.

    I don't see where anyone else has actually tried a real 1541. Has this been...
  22. I spent quote a bit of time this morning...

    I spent quote a bit of time this morning attempting to make a real 1541 drive work with the Teensy64. Unfortunately, it doesn't work - at least not with my board. Here is what happens:

    I power up...
  23. I should try v1.8.5. After v1.6.4 the compile...

    I should try v1.8.5. After v1.6.4 the compile time more than doubled for any project. Maybe they have fixed that with v1.8.5? Parallel processing should really help. I am using a 4930K CPU...
  24. I use v1.8.2 and it takes 52 seconds to compile...

    I use v1.8.2 and it takes 52 seconds to compile on my desktop.
  25. Success! :) For anyone pulling their hair...

    Success! :)

    For anyone pulling their hair out, follow this guide:

    Make the changes to the Teensy system files as described above in post #75
    Download the teensy64-master.zip from the github...
  26. OK, figured out the main issue. There needs to...

    OK, figured out the main issue. There needs to be some explaining about what is in the archive (teensy64-master.zip).

    I saw above in your post: Using library Teensy64 in folder:...
  27. Thanks. I have never had an issue with any...

    Thanks. I have never had an issue with any sketch before, and I have a few commercial products that use the IDE to generate code so I am really familiar with how it all works. The...
  28. I was able to test the board by loading the...

    I was able to test the board by loading the Adafruit ILI9341 example and changing the display pins to match what is used for the Teensy64 board. So, at least that works. :)
  29. OK.. I don't understand. I have been using the...

    OK.. I don't understand. I have been using the Arduino IDE for many years. I have zero issues using it. I installed the Teensy 3.6 installer and I can select the BLINK example and it blinks the...
  30. I have no issues using any of the Teensy 3.6...

    I have no issues using any of the Teensy 3.6 examples (like BLINK). The teensy-resid and sdFat are there. I downloaded the source and put it into my projects directory, but there is only C64.ino as...
  31. Is there a walk-through on how to use the Arduino...

    Is there a walk-through on how to use the Arduino IDE to build this? I got the files, and installed the SDFat library, but I am not sure how to load/compile the project! I have a board sitting here...
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