Sawtooth generation

Vishnu Unnithan

Hello,

I am using MSP 430 G series for my project and I want to generate a sawtooth waveform of 1 MHz and sine waveform of 100 Khz and generate sine modulated PWM after comparing the two. Pls help me with the code.

Regards

over 9 years ago

Antonio Espirito-Santo over 9 years ago

Expert 2855 points

Hi,

You must read and follow this two application notes:
www.ti.com/.../litabsmultiplefilelist.tsp;tabId=1502&literatureNumber=slaa497&docCategoryId=1&familyId=1615
www.ti.com/.../litabsmultiplefilelist.tsp;tabId=1502&literatureNumber=slaa116&docCategoryId=1&familyId=911

Best Regards,
AES

Leo Bosch over 9 years ago

Guru 23000 points

Make a graphical illustration of what you want, put timing values on it and define your hardware and software flow-chart.

old_cow_yellow over 9 years ago

Guru 58965 points

Vishnu Unnithan said:
...Pls help me with the code.

MSP430Gxx cannot generate saw-tooth or sine waveform without other circuits or hardware. What do you mean by "the code"?

Jens-Michael Gross over 9 years ago in reply to old_cow_yellow

Guru 227245 points

Well, it can - using a timer output followed by a steep filter for the sine, and a timer-controlled current source, charging a capacitor, for the sawtooth. Quite some effort.

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Sawtooth generation