40 lines
776 B
C++
40 lines
776 B
C++
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#include <memory>
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#include <limits>
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#include <cstdint>
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#include <iostream>
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#include <random>
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#include <verilated.h>
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#include "Vcontrol_loop.h"
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Vcontrol_loop *mod;
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/* Very simple simulation of measurement.
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* A transfer function defines the mapping from the DAC values
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* -2**(20) -> 2**(20)-1
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* to the values -2**(18) -> 2**18 - 1.
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*
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* The transfer function has Gaussian noise which is added at each
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* measurement.
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*/
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class Transfer {
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std::random_device rd;
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std::normal_distribution dist;
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double scale;
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double sample() {return scale*dist(rd);}
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public:
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Transfer(double scale, double mean, double dev, double m, double b)
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: scale{scale}, rd{}, dist{mean,dev} {}
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double val(double x) {
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return m*x + b + sample();
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}
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};
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int main(int argc, char **argv) {
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}
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