fintros / SDrive-ARM

Atari800 disk drives emulator based on C.P.U. project SDrive

SDrive-ARM

Atari800 disk drives emulator based on C.P.U. project SDrive

Specs

• SDrive was developed originally by C.P.U. team in 2008 and use AT Mega 8 processor;
• It is extension of previous project with following features:
  • Works with Atari 8-bit systems like Atari 800, 800xl, XE/GS, etc.
  • 5V compatible 32bit Cypress CY8C4245AXI ARM processor with:
    • 48 MHz core
    • 32Kb Flash
    • 4Kb RAM
  • MicroSD card reader
  • Capacitive buttons (Next drive, Prev drive, Boot drive)
  • 6 LEDs (1 green, 1 red and 4 yellow)
  • Reset button
  • Each SIO pin connected to ARM I/O pin (Possibility for functionality extension)
  • One RW/RO switch for microSD card
  • original drive ID's switchng DIPs excluded

Software needed to open and compile source code

• PCBs created in Eagle software (http://www.autodesk.com/products/eagle/overview)
• ARM firmware created in Cypress PSoC Creator 4.0 (http://www.cypress.com/products/psoc-creator-integrated-design-environment-ide)
• Box sketches created in Sketchup (http://www.sketchup.com/)

Hardware needed to initial chip programming

• Cypress KitProg is needed to program ARM chip. Easiest way is to buy CY8CKIT-043 ($10) or similar kit

ToDo list

• Fix an issue with daisy-chain connection (add switchng diode to SIO data in line)
• Implements SDHC support
• Implement FAT32 support
• Add "Update from SD" feature
• Apply Hias patches to firmware
• Increase number of usable drives up to 8
• Implement cassete recorder functionality

Contacts

• Please contact me in case of questions by E-Mail: extmail at alsp.net
• Donations are welcomed to the same PayPal address ;)