Difference between revisions of "Final Expansion"

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== Weblinks ==
 
== Weblinks ==
* Nils [http://www.for8bits.com/index.php?lang=en& WEB Shop]
 
* [http://vc20final.t-winkler.net/index_en.html Homepage] of the Final Expansion
 
 
* [http://t-winkler.net/dokuwiki/doku.php?id=en:fe3:main Documentation] to the Final Expansion
 
* [http://t-winkler.net/dokuwiki/doku.php?id=en:fe3:main Documentation] to the Final Expansion
 +
* [http://vc20final.t-winkler.net/index_en_old.html Old homepage] of the Final Expansion
 +
* [http://www.retro-donald.de/pages/final-expansion-vc-20-easyflash.php Available from Retro-Donald]
 
* In Forum64 the FE was developed from a team: [http://www.forum64.de/wbb3/index.php?page=Board&boardID=283 Final Expansion in Forum64]
 
* In Forum64 the FE was developed from a team: [http://www.forum64.de/wbb3/index.php?page=Board&boardID=283 Final Expansion in Forum64]
  
  
 
[[Category:Hardware]]
 
[[Category:Hardware]]

Revision as of 08:50, 27 May 2010

Final Expansion
Final Expansion board


The VIC-20 Final Expansion is a universal memory expansion for VIC-20. The FE is a cartridge for the expansion slot of the VIC-20. The actual version v3.2 has following features:

The Final Expansion can start any known VIC-20 software. Games and programs will be started by a comfortable menu. The FE gives any expected environment for any software and configures memory requirements automatically on startup.


Hardware

In addition to two SRAM, and EEPROM memory chips, the PCB contains two Atmel CPLD's, an ATmega644 for the SD2IEC functionality, and an ATF1504, which controls the hardware of the FE3 in a single chip.

Software

The firmware of the FE3 is contained within the flash memory. It starts immediately after power on and when the VIC-20 is being reseted.

RAM Configuration: This menu point allows to configure any known memory configuration of the VIC-20.

Diskloader: This menu point exists to load and execue programs on SD card or floppy disk. The diskloader is free configurable by the User and supports any kinds of floppydisk drives and of course the integrated SD2IEC (µIEC).

Cartloader: This menu point exists to load and execue programs directly from flash memory. The flash provides 480KB (from 512KB) userspace. You can fill this userspace with most favourite games and programs. All kind of programs are possible (BASIC, programs, cartridges) to flash into userspace.

FE3 Wedge: This utility extends the command set of the VIC-20 and implements SJLOAD/SJSAVE (Jiffy compatible load and save). Cause the integrated SD2IEC is also Jiffy compatible, it is a benefit also with the diskloader.

Reproduction

The schematic of the FE is free available and the firmware is open source. Everyone can build a FE3 herself easily. It is possible to build a FE3 on a breadboard or a 8 Bit Baby (see also Final Expansion v1).

There are also kits available from Nils at forum64. The WEB Shop is here. The assembly instructions are here.

Weblinks