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PSoC 5, 3 & 1 MCU

Anonymous
Not applicable

  Can we use  Cy kits to simulate Digital modulation techniques?

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Esteemed Contributor

The answer is yes, depending on what mod technique you are trying to effect and

   

communication mode of interest. AM, FM, PSK, Tone Methods (like CTSS, FSK),

   

digitakl modes..... http://en.wikipedia.org/wiki/Amateur_radio#Modes_of_communication

   

 

   

AM is straightforward using a multiplying DAC (PSOC 1) or SW and a DAC

   

for PSOC 3 / 5. Or this approach http://www.psocdeveloper.com/forums/viewtopic.php?f=42&t=6868

   

There also is a mixer in PSOC 3 / 5 to do modulation.

   

 

   

And using a table and DMA to DAC one could real time modifiy table contents to modulate

   

a signal.

   

 

   

 

   

Regards, Dana.

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Esteemed Contributor

Note PSOC 1 does not have DMA, only 3 / 5.

   

 

   

Regards, Dana.

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Esteemed Contributor

One last comment, a summary of approaches to modulate signals -

   

 

   

1) Via total analog techniques, for example using PSOC 3 / 5 OpAmps for

   

oscillator signal generation and for modulation of signal generated. Or

   

Mixer http://www.cypress.com/?rID=44407

   

 

   

Or swcap in PSOC 1     http://www.psocdeveloper.com/uploads/tx_piapappnote/an2044.pdf

   

 

   

2) Partial analog and digital techniques, DACs, Counters, PWM to gen signals,

   

and DMA, software polling to effect modulation.

   

 

   

3) Verilog and/or UDBs to build a custom modulation engine, like a DDS approach.

   

PSOC 3 /5.

   

 

   

http://www.cypress.com/?rID=39408

   

 

   

Regards, Dana.

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