In SX Microcontrollers, SX/B Compiler and SX-Key Tool, JimKueneman wrote:

I have been struggling to come up with a plan of attack to code the SX28.  Here are the requirements:

1) PWM:  Constant Period, User definable Period with max period >25kHz (40us), user definable 127 or 255 step resolution

2) While the PWM is running need to search for an asynchronous pulse width encoded input data stream.  A "1" is defined as a pulse 52us to 64us wide and a "0" is defined as a pulse 90us to 1000us wide.

3) once a command is detected in 2) the execution time the received command is not critical (though it does have a requirement to be ready to accept another command with a specific time frame the SX runs fast enough this should not be an issue)

Any suggestion on how to attack this problem? 

Thanks,
Jim

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