mercredi 5 mars 2014

C64 IEC interface schematics for DE0 nano, DE1 or DE2 board

IEC interface components :
  • 1 TTL 74LS06  six open collector buffer inverter
  • 6 resistors 2 kOhms  
Gpio side : 
  • connect to gpio_0 for DE0 Nano
  • connect to gpio_1 for DE1 or DE2
IEC side :
  • to IEC/SD board
  • to 1541 drive din connectors (+5V not connected )

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