Rasterizer - design

dub 19, 20:33

Target is clear!

I have to make device which will:

  1. read memory to generate VGA
  2. write to memory vectors from AD convertes
  3. convert XY and Z (brightness) to digital

For this I select following parts:

  • CPLD XC95144XL with 144 pins
  • SRAM 256kx16bits
  • ADC two AD9218 with max sample rate 40MPS
  • OP amps AD8137
  • 50MHz oscilator

with this parts I create attached circuit.
It looks easy, but firmware will be more tricky :-)

Rasterizer circuit diagram





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