1541 Ultimate

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



Specifications

From the [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.