Rudy’s Status Report 4/18

This week I experimented with audio on the FPGA. My initial expectation was to instantiate IP for the DE2-115, but since the original Apple II’s audio output relied on manually toggling a register to create a PWM output, we realized that we could just connect a speaker to a GPIO pin directly. This produced some standalone results, but further testing has to be done with an actual Apple II program. I’ve been running into numerous synthesis issues with GPIO unfortunately and am working to resolve them.