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
Micro SwinSID (SwinSID88) is a hardware replacement for legendary SID sound chip which was placed in every Commodore C64 computer.
This hardware extension is designed as a module installed directly into the SID socket. It emulates the sound of the SID chip, but it is a lot more powerful and allows you experience the new dimension of C64 music.
The hardware desing of SID and Micro SwinSID (SwinSID88) modules is different in almost every way. Micro SwinSID (SwinSID88) is equipped with general purpose microprocessor (ATMega88PA or PU) with internal RAM and ROM.
A programmable device like this has a big advantage – there is a possibility to upgrade firmware and to add new features or fixes without any hardware modification.
Download: Micro SwinSID PCB and Schematics v1.1
Download firmware: Firmware (30/04/2010) / Firmware (19/10/2010)
source: forum64.de swinkels homepage
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
from 1541 Ultimate homepage:
- Last firmware version: 2.0RC5 is now downloadable from the download page.
- Ultimate-II sources released!
You can access them through http://svn2.xp-dev.com/svn/1541UltimateII/.
For those who know how to use SVN, you can do a checkout to create a local working copy by typing:
svn co http://svn2.xp-dev.com/svn/1541UltimateII/trunk
in an empty directory. I am working on a short manual, and on access to the tools needed to build the project. This time, the FPGA sources have been released as well. ;-)
source: 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:
2010-06-21 – release 0.9.2
- Bugfix: Rename was broken on FAT.
- Turbodisk is now disabled when running on internal RC clock.
- Button debounce timeout increased.
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:
2010-03-07 – release 0.9.1
- Bugfix: Filling unused REL records used wrong offsets.
- Bugfix: Unbreak case-insensitive matching of FAT file names.
- Bugfix: Fix raw directory mode for D64/D71/D81.
- Bugfix: Tell the display about REL files too.
- Add preliminary support for the ATmega1284P.
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:
2009-02-28 – release 0.9.0
- Bugfix: REL offset calculation for records 256,512,…
- Bugfix: Non-REL P command parameters now match README.
- Bugfix: Reading after EOI behaves correctly now.
- Red LED only active while unwritten data in memory.
- Remove XC,XJ commands.
- New fastloader: ULoad Model 3.
- New fastloader: G.I. Joe (said to be commonly ripped)
- New fastloader: Epyx FastLoad cartridge.
- Support reading raw directory ($ with secondary > 0)
- “display disk images as directories”-mode.
- DNP support.
- Remote display support.
- Build system doesn’t require gawk anymore.
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:
2009-12-16 – release 0.8.3
- Bugfix: Really prevent random corruption on FAT32 media.
- Bugfix: Free buffer after copying files.
source: sd2iec.de gitweb forum thread c64-wiki
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