integration of values from ADC with the Trapezoidal method

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hi

I'm working with CCS and Pic 18f252. I want to implement in the Pic the trapezoidal rule to do a integrator from 0 to 60 sec. Can help me anybody? Has anybody any code example?

Thanks

Pablo
 

Say there are n samples within 0 to 60 sec. The formula:

RESULT of Integration = ((tn - t0)/2*n)*(y0 + y1 + y2 +... + yn)

... where t0 is the time instant at first sample (i.e. y0), tn is the time instant at n-th sample.

I assume CCS is a C compiler. So, in my opinion, it should not be difficult to implement the equation above. :)
 

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