Generate a sine wave with VDAC

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Skdk_4669631
Level 1
Level 1
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Hello everyone !

I’m new with PSoC and I would like to generate a sin wave from the VDAC.

To do so I need a ( high ) number of values for the argument of the sine function.

I tried to create a list like in python : theta = [0:(2*pi//100:2*pi] for example, but every time I try something it is invalid.

I also tried to mane a for loop outside the main function like this :

unsigned int step:

for ( step=0; step<100; step++)
{

}
it didn’t work as well. I had expectation of ‘(‘

Also, let’s imagine I have a set of values for the angle of my sine function, let us call it x.

Can I do sin(x) to have another set of value of the sin of each value for the angle ?

thank you for your help

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1 Solution
odissey1
Level 9
Level 9
First comment on KBA 1000 replies posted 750 replies posted

Skdk,

You can use a portion of this project, which includes sine wave generator for testing:

DelSig_ADC - Filter - VDAC8 streaming demo using DMA

Re: Wave dac maximum samples

ADC-Filter-VDAC_01b_C.png

It uses several custom components which encapsulate tunable clock (DDS32) and RAM-DMA-VDAC transfer (WaveGen). Simple rotary encoder is used for adjusting sine frequency (or amplitude).

/odissey1

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