Rewrite demo program with interrupts, get clocks set up, build lighting connectivityPosted: 2005-August-18
Ok, so now it's 2 days left. It took a while, but I got the program working using the built-in timers and interrupts. Basically I created a main program polling loop that waits for the "fast" clock (which is programmable through macros in Hertz based in the assembly language program) to run "fast" events (like light animation) and a slow clock derived from that for pushing buttons on the MP3 player. For some reason the internal clock runs at 3x the crystal frequency. Who knew?
I also got to wire up all the connections for the socketed chips: I got the latches in place on the board and wired everything up: I'm going to try using the master synchronous serial port (MSSP) to run the latches. I've got three inputs set up that drive PNP transistors with a common emitter to +5V and the collector tied to the anodes of the respective colors.
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