SD2IEC is a hardware mass storage device using an SD/MMC card and interfacing with the IEC bus. It is based on the ATmega644 or ATmega1284p microcontroller from the Atmel AVR microcontroller family.

The most prominent use of SD2IEC is emulation/replacement of a Commodore-1541 disk drive for a C64. Hardware and the microcontroller’s firmware is available as open source (GPL).

Changelog:

2010-12-25 – release 0.10.1

• Bugfix: Remove remains of previous commands while parsing B-*
• Bugfix: Fix response of UI command for unknown suffix chars.
• Small improvement of JiffyDOS transfer speeds.

source: sd2iec.de gitweb forum thread c64-wiki

A new version of the firmware for the interface 1541 Ultimate I / II is released.

This version also runs on the Ultimate-I! (Of course, only the features that MK1-hardware supports will show.. no RTC, no USB, no C2N (tape), etc…)

This is a MAJOR update from RCA! Please note that former versions had issues with writing back data to .D64 images.

Your copies that you made with former 2.0RCx versions might be corrupt!!

Major improvement in latest release:

• Added: Small step made to supporting block sizes other than 512 bytes (for CDROM, which I want to support soon!)
• Added: Update changed to flash all roms too…
• Added: Boot FPGA definitions added for booting with Winbond Flash.
• Added: USB hub support (high speed devices only!)
• Added: C64 reset included in 1541 reset (optional)
• Added: Option to save current disk as D64 or G64.
• Added: Option to create formatted G64.
• Added: Progress bars in user interface.
• Added: Stop option added to tape playback.
• Added: Initial attempt to implement creating of G64 files.

Read more…

The HxC Floppy Drive Emulator is a software and hardware system created by jfdn aka Jeff.

The aim of this project is to replace the floppy disk drive by an electronic device emulating the floppy disk drive (list of supported Computer/Hardware).

There are two differents emulators:

• A USB version which allows to connect the floppy disk drive interface of the computer to a PC via a USB cable.
• A SDCARD version which allows to emulate floppy disks which images are stored in a SDCARD.

Release notes for the HxCFloppyEmulator software v1.4.0.1:

• GUI : SDCard buzzer sound volume control added.
• GUI reworked.
• Double step drive emulation support added.
• IMD Loader : Default interface mode change to Shugart.
• RAW Loader : Default interface mode change to Shugart.
• USB HxC Floppy Emulator : Shugart mode corrected.

Release notes for the SD HxCFloppyEmulator firmware upgrade v1.3.0.4:

• Amiga : Change disk delay added.
• Buzzer driving bug corrected.
• “One button” mode feature added.
• Double step support added.

source: hxc2001.free.fr

SD2IEC is a hardware mass storage device using an SD/MMC card and interfacing with the IEC bus. It is based on the ATmega644 or ATmega1284p microcontroller from the Atmel AVR microcontroller family.

The most prominent use of SD2IEC is emulation/replacement of a Commodore-1541 disk drive for a C64. Hardware and the microcontroller’s firmware is available as open source (GPL).

Changelog:

2010-11-07 – release 0.10.0

• Deprecation notice: E-R and E-W commands will be removed in the next release.
• Improved reliability of Nippon loader.

source: sd2iec.de gitweb forum thread c64-wiki

SD2IEC is a hardware mass storage device using an SD/MMC card and interfacing with the IEC bus. It is based on the ATmega644 or ATmega1284p microcontroller from the Atmel AVR microcontroller family.

The most prominent use of SD2IEC is emulation/replacement of a Commodore-1541 disk drive for a C64. Hardware and the microcontroller’s firmware is available as open source (GPL).

Changelog:

2010-10-31 – release 0.10.0pre5

• Bugfix: Avoid duplicate file name when DEL/DIR matches.
• Bugfix: Reduce chance of data corruption in Wheels.
• Bugfix: Slightly relax IEC timing while waiting for command.
• Added AR6 1581 fastloader+saver (PAL).

source: sd2iec.de gitweb forum thread c64-wiki

SD2IEC is a hardware mass storage device using an SD/MMC card and interfacing with the IEC bus. It is based on the ATmega644 or ATmega1284p microcontroller from the Atmel AVR microcontroller family.

The most prominent use of SD2IEC is emulation/replacement of a Commodore-1541 disk drive for a C64. Hardware and the microcontroller’s firmware is available as open source (GPL).

Changelog:

2010-10-26 – release 0.10.0pre4

• Bugfix: Wheels with SuperCPU timing issue corrected.
• Bugfix: Rare problem with ~ in FAT file names fixed.
• Added compile-time option to capture fastloader code.
• Added Wheels 4.4 fast loaders.
• Added another variation of the Epyx Fastload cart.
• Added Nippon fast loader.

source: sd2iec.de gitweb forum thread c64-wiki

A new version of the firmware for the interface 1541 Ultimate I / II is released.

This version also runs on the Ultimate-I!  (Of course, only the features that MK1-hardware supports will show.. no RTC, no USB, no C2N (tape), etc…)

Some major fix:

• Freezer bug fixed.
• Cartridge Freezer reactivated after DMA load.
• MK1 support completed.
• Tiny fix added for USB (connecting a powered hub caused the C64 to be powered by the hub!!)
• Updater fixed for older FPGAs that don’t support the capability register.
• Memory controller for MK1: removed DACK for write cycles.
• Added dummy I/O clients, for missing modules in MK1 FPGA.
• Rewritten first bootloader (…)
• Added second drive support in software.
• Added audio switch. If second drive is available, it will be available on the right channel.
• ‘Chars’ linked instead of loaded from Flash. MK1 doesn’t have charset in flash…

download: 1541ultimate.net

SD2IEC is a hardware mass storage device using an SD/MMC card and interfacing with the IEC bus. It is based on the ATmega644 microcontroller from the Atmel AVR microcontroller family.

The most prominent use of SD2IEC is emulation/replacement of a Commodore-1541 disk drive for a C64. Hardware and the microcontroller’s firmware is available as open source (GPL).

Changelog:

2010-10-16 – release 0.10.0pre3

• Bugfix: Wheels 128 loader detection fixed.
• Bugfix: G-P answer fixed.
• Bugfix: Strip 0x0d from file names when appropiate.
• Wheels support.

source: sd2iec.de gitweb forum thread c64-wiki

A new version of the firmware for the interface 1541 Ultimate II is released.

Some major fix:

• Some debug stuff that appeared in menu removed!
• Tape Record implemented.
• Capabilities register added (for V1 compatibility later)
• Initial version of memory controller for V1 hardware added.
• Global menu items replaced by menu objects that can generate menu items based on the object’s state.
• Some bug-fixes.
• Christmas lights eliminated in many places.
• 64K AR/RR Ram support added; as well as made to pass CountZero’s test program with 71 points.
• Freezer bug is NOT yet tackled.
• Preliminary USB hub support added (not finished)
• Tape recorder software file created, but is still a copy of playback. Needs to be implemented.
• IEC processor implemented.
• Some clean up done in USB code.
• C2N Recorder added to Fpga makefiles. (not for 250e yet)
• TAP Encoder added.
• ZPU altered for guaranteed IRQ handling (not used yet)

download: 1541ultimate.net

A new version of the firmware for the interface 1541 Ultimate II is released.

Some major fix:

• C1541 rom load now supports loading 8K roms (E000-FFFF only).
• File name now defaults to directory “/SdCard/Part0″. Use ‘/’ at the beginning to override.
• Comment added in the application
• Various bugfixes in path code. [IMPORTANT!]
• Version updated to 2.0RC8.

download: 1541ultimate.net

A new version of the firmware for the interface 1541 Ultimate II is released.

Some major fix:

• Update fixed => C64 should be taken out of reset otherwise keyboard won’t work.
• RTC speed correction implemented.
• Screen flicker removed by not clearing the screen upon “draw()”
• Double file name fixed at create D64.
• C64 kept in reset to avoid basic screen before cart screen.
• C1541 rom load fixed.
• Delete file implemented.
• Sorting of dir entries (DIR first) still needs to be tested.
• REU Filetype added.
• Double filenames fixed.
• Rename fixed (I think!)
• Error handling improved, error strings added.

download: 1541ultimate.net

A new version of the firmware for the interface 1541 Ultimate II is released.

Some major fix:

• Added: Built-in flash protection to avoid more units to ‘die’.
• Fixed: Joystick Right on PRG file still crashes UltimateII.
• Fixed: Mount & Run starts disk mounted Write Protected.

download: 1541ultimate.net

Finally! after a long time the new version of the Firmware for the interface SIO2SD is realesed under GPL Open-Source.

The SIO2SD is a device that allows you to load games/applications into any 8-bit Atari XL/XE computers via SIO interface from SD/MMC cards.

Changelog:

• Configuration is now available from Atari Screen – press K3 key (no need to disconnect the cable from the SIO).
• Loader for the executable files has been replaced with a new version.

source: sourceforge.net sio2sd.gucio.pl marcinprusisz.pl

SD2IEC is a hardware mass storage device using an SD/MMC card and interfacing with the IEC bus. It is based on the ATmega644 microcontroller from the Atmel AVR microcontroller family.

The most prominent use of SD2IEC is emulation/replacement of a Commodore-1541 disk drive for a C64. Hardware and the microcontroller’s firmware is available as open source (GPL).

Changelog:

2010-08-06 – release 0.10.0pre1

• GEOS 2.0 support (d64/d71/d81 images only)
• File-based M-R emulation.
• Removed “oldnkc” configuration.

source: sd2iec.de gitweb forum thread c64-wiki

SD2IEC is a hardware mass storage device using an SD/MMC card and interfacing with the IEC bus. It is based on the ATmega644 microcontroller from the Atmel AVR microcontroller family.

The most prominent use of SD2IEC is emulation/replacement of a Commodore-1541 disk drive for a C64. Hardware and the microcontroller’s firmware is available as open source (GPL).

Changelog:

2010-08-02 – release 0.9.3

• Bugfix: Extension hiding works again with names >12 characters.
• Bugfix: Increase data hold time during standard TALK.
• Testing aid: card detect-to-LED function.

source: sd2iec.de gitweb forum thread c64-wiki