ATMega644 Galaksija

Electronic schematic

As you can see the schematic is extremely simple and in a few minutes everything can be connected on a proto board. The circuit generates a composite PAL video signal as with the original Galaksija.

Finished electronic circuit

This is how the circuit I made for testing looks like. The same circuit was used for ZX81 emulation.

In operation

Video captured directly from composite output.


m644_galaksija.hex  HEX file to burn into ATMega644 microcontroller
   Fuses: H=0x99 L=0xE0

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