Jump to content

pazuzu72

Members
  • Posts

    14
  • Joined

  • Last visited

Posts posted by pazuzu72

  1. 21 hours ago, kneehighspy said:

    quick question,

     

    i have built a couple of the carts and they seem to only boot to the blue 'ready' prompt as if the carts aren't being recognized.  after programming, i do get led flashing, but it's as if the carts aren't being seen by the 800xl.

     

    any ideas or suggestions are appreciated!

     

    thanks,

     

    kneehighspy

     

    The only thing I can advise you is to recheck all solder joints,  especially on the 4 bus switch chips.

     

     

  2. 1 hour ago, Faicuai said:

    Yes, it will be a public release (including source-code in Assembly), as well as utility set (pre-compiled executables) to drive the cart from SDX or any other DOS.

     

    In short, the cart will be operating in "Library" mode (which is the mode everyone knows) and "Session" mode (which will be under local machine's session / environment control, which it currently does not support. 

     

    And upgrades will be easy as pie, for everyone, because no USB-Blaster will be needed. It all happens with existing upgrade facilities (new "Boot" rom dropped at root of SD card).

    Congratulations.

    According to what everyone said, it was very difficult to develop new firmware.

    I can not wait. For too long this beautiful cartridge has been without updates.

     

  3. On 3/4/2020 at 12:43 AM, Faicuai said:

    8588439B-4B4F-47D6-90D4-D05595FF1B96.thumb.jpeg.86ae53672355d0471030151b1466a2e6.jpeg

     

    You should be aware, however, that it is not a free ride, altogether. There are some operational issues to consider. However, I am planning to soon release a set of "Control Extensions" (CX) for Ultimate/SD that will allow it to co-exist much more productively with native OS and Atari DOS, DOS XL and (especially) SDX, from where you are now capable of hot-plugging and deep-booting any ROM, while also being able turning-off the cart, without ever leaving your command prompt, and without disrupting an OS-driven normal boot-up sequence.

     

    Cheers!

    Hi, what you say is very interesting. Could you better explain the potential of your upgrade and if you will release the firmware freely?

    • Like 1
  4. On 4/1/2016 at 5:58 PM, electrotrains said:

     

    The need for the low pass filter (2 resistors + 2 caps) and headphone jack would make it a pretty messy addition to the board as it stands, which is why I haven't posted the firmware or source for this. Also, although there are spare pins on the FPGA, they are not brought out to a header.

     

    Of course someone could always redesign the PCB a bit, and add an audio jack to the board. Then there could be an option on the boot menu to enable dual pokey mode... or SID mode... or....

     

    But I think that it would be better still to make a PBI/ECI+Cart version of the ultimate cart, then the pokeys could live at their normal location. Plus it could act as a RAM expansion too.

     

    SD Multicart + 1 Meg RAM + Dual pokey all one one board - that would be a nice thing!

    Hi, but is the firmware for this project working? I could redo the pcb with the addition of the low pass filter and the headphone jack if that's ok with you. It would be really cool!!!!!!!!

     

    • Like 1
  5. On 8/25/2019 at 9:10 PM, xrbrevin said:

    how unfeasible is ATR support?

    i guess it would already be on there if it was do-able?

    I don't really care about the feature, as it is badly implemented in other cartridges. That's why SIO2SD is fine. I would rather like the ultimate to support some other bank switching and have the search for example.

    • Like 1
×
×
  • Create New...