Lab5
DAC Siren
Program the FPGA on the Nexys A7-100T board to generate a wailing audio siren using a 24-bit digital-to-analog converter (DAC) called Pmod I2S (Inter-IC Sound)
Modifications:
1) Modify the tone module to create a square wave instead of a triangle wave when the upper push button (BTNU) is depressed
2) Change the wailing speed based on the Use the eight slide switches (SW0-SW7) on the Nexys A7-100T board to set the wailing speed
3) Add a second wail instance to drive the right audio channel