User`s manual

than the NTSC data was coming to us (the tv in line clock1 rate). This was

causing some setup times at the BRAM to be violated when clocks were out of

phase and the BRAM to be written with unstable values.

Below is an image of the ntsc to bram code working in isolation:

Figure 4: camera output using bram

5.14 audioManager (Shantanu)

The audioManager module is the core module in the audio playback component.

It handles the whole life-cycle of audio, from receiving over USB, to storing into

ﬂash, queuing tracks, and playback. It interfaces with three external hardware

components - the ﬂash chip, the USB interface, and the AC97 audio codec

hardware.

The module is centered around its interaction with the ﬂash hardware, since

the ﬂash memory is manipulated any time the module is active. Depending

on the input of the switches, it either sets the ﬂash memory to “read mode”

or “write mode.” To prevent the module from resetting the ﬂash memory and