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:
2009-09-27 – release 0.8.2
- Bugfix: Prevent random storage corruption on FAT32 media.
- Bugfix: Image files not mountable if read-only file or media.
- Bugfix: Do not clear error channel if sec. 15 is closed.
- Add a dummy RTC read during init (to update year if required).
- Enable I2C RTC support in LarsP configuration for Final Expansion 3.
- Acknowledge ATN during initialisation to stall C64 if required.
source: sd2iec.de gitweb forum thread c64-wiki
TapPlay / TAP file playback for sd2iec hardware.
Changelog:
2009-08-21 – release 0.1.0
source: sd2iec.de gitweb forum thread twitter.com
1541 Ultimate Firmware v1.7 will be released very soon!
Firmware v1.7 will include:
- Fully functional SID player.
- Some new cartridges.
- Support for loading your own cartridge from SD.
- Freezer problem has been addressed and fixed.
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:
2009-05-24 – release 0.8.1a
- Fix bootloader version number generation.
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:
2009-05-20 – release 0.8.1
- Fix uIEC/IDE SD card change detection.
- Dreamload support for uIEC.
- Mark the RTC time as valid after setting the clock.
- Delay SPI initialisation until absolutely required.
- Show disk change confirmation even when the error blink is active.
- Exit the FC3 fastloader if ATN is active.
- Fix indentation of 1000+ block files.
- Remove 0-byte from the long version message.
- Fix multiple save-with-replace bugs.
- Ignore directories when matching file name wildcards.
source: sd2iec.de gitweb forum thread c64-wiki
TapPlay / TAP file playback for sd2iec hardware.
source: sd2iec.de gitweb forum thread twitter.com
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:
2009-03-20 – release 0.6.7a
source: sd2iec.de gitweb forum thread
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:
2009-03-08 – release 0.8.0
- Direct sector access of the real storage device
- Ignore DEL files in file_open
- Drive mapper
- EXOS V3 fastloader support
- Requires avr-libc 1.6.x
2009-03-07 – release 0.6.7
- Bugfix: Close previous file if secondary is reused without close
- Bugfix: Minor Jiffy timing fix on EOI
source: sd2iec.de gitweb forum thread
The annoying bug in the firmware that had rendered the Ethernet interface almost useless has finally been fixed.
In comparison to 1.5, the following has been fixed:
- Reads from the Ethernet chip have been fixed. The unit now correctly receives packets.
download: 1541U Homepage
SD2Iec – is a hardware mass storage device using an SD/MMC card and interfacing with the IEC bus.
Changelog:
2008-10-02 – release 0.8.0pre1
- Implement Dreamload emulation.
- RTC support.
- Dataflash support.
- Multi-file scratch.
- Copy command.
- Large buffer support.
- Final Cartridge 3 freezed file fastloader support.
- D71/D81 disk image support.
- Parse FSINFO sector for faster FAT32 free space calculation.
- Partial REL file support.
download: sd2iec.de
source: gitweb forum thread
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