2 VGA clock

2 : VGA clock

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How it works

Races the beam! Font is pre generated and loaded into registers. 6 bit colour keeps register count low.

How to test

Hook up a VGA monitor to the outputs and provide a clock at 31.5 MHz. Connect the 6 bit colour output up with resistors to make a R2R DAC. See the circuit here: https://github.com/mattvenn/6bit-pmod-vga


# Input Output Bidirectional
0 clock hsync none
1 reset vsync none
2 adjust hours r0 none
3 adjust minutes r1 none
4 adjust seconds g0 none
5 none g1 none
6 none b0 none
7 none b1 none