1541 Ultimate

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The awesome list of features speaks for this fine C64 hardware extension by itself.



Specifications

From the 1541 Ultimate Website:


Specification_1541U Features:

  • Full emulation of a real Commodore 1541 diskdrive.
    • Uses .D64 files stored on SD card
    • Supports .G64 files as well (Read only)
    • Configurable ID
    • Configurable ROM (1541/1541C/1541II or custom)
    • RAMBOard memory expansion (16K)
  • Secondary 'IEC-drive' for direct access to FAT filesystem.
    • Can be used in stand alone mode to mount disks into the emulated 1541.
  • FAT/FAT32 support, with sub-directories and long filenames
  • Supports SD V1.1 cards as well as SD V2.0 in High Capacity mode (SDHC)
  • C64 cartridge emulation:
    • Final Cartridge III
    • Action Replay
    • Retro Replay
    • Super Snapshot
    • Turbo Assembler w/ Codenet
  • Commodore 1750/1764 REU
    • REU Compatible
    • Size selectable from 128K up to 16 MB
    • Can be combined with Retro Replay and SuperSnapshot compatible roms
  • Integrated RR-net compatible Ethernet port
    • Available as an option on a new order only!
    • No flimsy stackup board, but fully integrated.
  • Flexible freezer menu
    • select, mount, create D64 images, browse disk images
    • create new directories, delete files
    • Ultra fast DMA load of single file programs (directly from SD / from a .D64 with automount and from a .T64 file)
  • Configuration screen, with resident settings
  • Load of last disk on power up
  • 'Stand-alone mode'
    • keeps the cartridge port free
    • powered through Mini-USB connector
    • controlled through buttons and IEC.
    • *NO* Ethernet support yet in stand alone mode!


Planned features:

    • Built-in copier
    • ...


Specifications:

  • Board size: 68 x 100 mm
  • 250k-gate FPGA
  • Full size 6-pin DIN connector (IEC)
  • 512 kB SRAM
  • 2 MB Flash ROM
  • 32 MB SDRAM
  • Full size MMC / SD card compatible (Mini/Micro SD possible with adapter)
  • Stereo audio output
  • 6-pin expansion pin-header for connection to tape port (for C2N emulation), or other future features.



Last Updated ( Tuesday, 13 January 2009 09:03 )



Images

Known Problems

   * Freezer bug
   * Ethernet bug


Future

As of this writing the 1541U-II is under development. It will feature

  • the board itself is about 30% smaller than the 1541U;
  • it has a MicroSD connector, instead of a full-size SD;
  • it has a real-time-clock function, for correct file time and date;
  • it has a larger FPGA, which enables the implementation of more features;
  • it has a USB Host port, which can be used to connect USB-sticks;
  • it is targeted to have a suitable case for the device.