Started 12th May 2008.
Create a low power hand held bat detector.
I've never built, or used, a bat detector before, but searching the web suggests there are 3 methods for listening to the echo location calls of bats.
The prototype is based on a EZ430-T2012 module.
Reading/writing SD flash
Reading any size block, starting at any point, is allowed. Writes must be in 512 byte blocks at 512 byte boundaries. This, plus the low available RAM, implies that some waste of SD flash storage may occur. The most efficient use of resources is most likely to write data as it is acquired and use RAM to buffer reads (since playback will be at lower speeds, less data is needed). If playback is at 16th speed for each 512 bytes written, 32 will need to be read.
Pulse width modulation (PWM) audio
The duty cycle is set through the CCR1 register.
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