Veramente una simpatica idea, inserire una versione homebrew ‘fatta in casa’ dell’interfaccia SD2IEC dentro il contenitore di vecchie cassette magnetiche.

source: arduinonut.blogspot.com

notizia dal forum: Petscii “PETSCII.COM”

Sono disponibili 90 PCB uIEC SD v3.0. L’interfaccia uIEC utilizza lo stesso firmware di Ingo Korb per l’SD2IEC.

Caratteristiche tecniche:

• uIEC/SD is currently the smallest known CBM drive (1.5″ x 1.5″ by 0.3″). Perfect for embedding in your favorite machine, drive, or calculator (shout out to Tone007, who stuffed one in a CBM pocket calculator)
• uIEC/SD shares the same 128kB Atmel AVR 8-bit microcontroller as the rest of the uIEC line. With 51kB used for firmware, there’s plenty of room left for the future.
• uIEC/SD comes complete for use with IEC connector and power supply cassette port connector. VIC/64/C128 users can simply plug the wires in and use. (SX64/+4/C116/C16 users need to source 5V elsewhere, let me know before purchasing if you’d like an alternate connector)
• Although not yet defined for use, uIEC/SD offers an additional switch line and programmatic LED for future use.
• uIEC/SD not only supports SD and SDHC cards, but either SD or SDHC cards can also be used for updating the firmware (new feature, older firmware update software only supports SD cards)

source: petscii forums uIEC gallery

Il chip PLA (906114-01) utilizzato nel Commodore C64 è un 82S100 gate array. Le sue funzioni logiche sono state oggetto di dumping e di reverse engineering da parte della comunità e sono disponibili in rete.

L’FPGA Arcade 28 pin DIL CPLD puo’ essere utilizzato anche per sostituire le funzionalita’ del PLA originale del C64.

source: fpgaarcade.com

The xum1541 (pronounced “zoom”) is built from a modified version of the xu1541 firmware. It is a USB full speed device and supports high-speed parallel cables. The hardware USB support significantly speeds up transfers. It will support mnib (aka nibtools), which provides low-level imaging to backup copy protected disks.

I’m most excited about this feature since it is critical to archiving original floppies for the C64 Preservation Project.

The CheapLPC is a flashrom burner for the SST49LF020 chip, The Software can read back, and verify the contents of the chip.

The software is also compatible with any other CheapLPC based programmer, like that used in the Martrix by Xodus, Ozx Prog by OZx Modchips, Neurosys, and a few others.

Download: GreenProg (CheapLPC Programmer) v0.7 (1228)

source: wikipedia cheaplpc.com

source: www.hp.com

Questo mio progetto vi dara’ la possibilita’ di Switchare due SID (6581 / 8580). Alcuni brani musicali (SID tunes) sono stati scritti per il SID 6581 e non suonano correttamente sul SID 8580 e viceversa, con questo semplice progetto potrete switchare il SID a piacimento. Questo non e’ un clone del SId2Sid Clone. Questo e’ un SId Switcher ;-D

source: 6581-Wiki

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Tieni il puntatore del mouse sulla foto per una breve descrizione.

Questo e’ il mio Commodore Dtv (c64) Modded, mi manca solo una cosa da aggiungere l’interfaccia sd2iec (che si occupa dell’emulazione del Floppy Drive 1541 emulator).

Modifiche che sono state fatte:

• PS/2 keyboard connector.
• External IEC connector.
• 2 joystick ports with switchable reset line for dtvtrans.
• 5V power regulator.
• Switch for external/internal battery power.
• Switch Power On/Off.
• Shadowolf’s Keyboard Twister.
• Floppy Drive Reset.
• Commodore 64 Reset.
• Spiff Color Fix.
• FlashRom Fix (write enabled)

Video:

My homebrew UV Eprom Eraser. I have spent 8 euros for electrical components and 3 euro for the box.

Gallery:

This is my latest Commodore 64 Modding

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Stay on Photo for a short description.