Week 10

To-do:

Add an output device to a microcontroller board you've designed and program it to do something




Phase Lock Loop (PLL): a system that generates an output signal whose position is related to the position of an input signal by bringing back the output signal for comparison with input signal. Keeping the input and output phases in lock implied keeping the respective frequencies the same or it can track an input frequency or generate a frequency that is a multiple of the input frequency



Speaker Board

This week I reproduced Neil speaker board (with a few trace modifications) – my EAGLE schematic and board has a custom 2 pad part. While I was able to program the board using Neil's C files I was unable to "make it do something." This is what I hope to sort our for next week, perhaps by starting with Arduino's tone() library. In the meantime, here's Dixon: