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[req:] AVR MSK soft transciever

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aNdreiBuuu

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Hi,
I want to implement a simple, low data rate (1200-2400baud) MSK communication between 2 tiny AVR. (the carrier can be anywhere between 9KHz and 20KHz)

Can you provide some C source code for MSK software modulation/ demodulation?
I want to use only the controller without other active components or circuits.

Thanks in advance,
Best Regards,
//a
 

bobcat1

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HI

8 bit AVR will find it hard to process FSK or MSK data modulated carrier - try to use AVR32 bit or ARM cortex (M3)

Basically you will need to decode A bi-phase signal using DFT algorithm

Google DFT & Grotzel to learn more

Go to TI site and search for MSP430 there is an fine application note for modem design using FSK and code written in C language

All the best

Bobi

The microcontroller specialist
 

    aNdreiBuuu

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