In this lab, we will program the FPGA on the Nexys2 board to generate a wailing audio siren using a digital to analog converter (DAC). This will require us to format our digital audio sequence into a serial stream that can be used to drive an outboard DAC.
The siren was accurately running and the siren could be heard using headphones attached to the board.
siren.vhd
wail.vhd
dac_if.vhd
tone.vhd
siren.ucf