test_logic-pattern.cpp

#include "WF_SDK/WF_SDK.h"  // include all classes and functions
#include <iostream>         // needed for input/output
#include <string>           // needed for error handling
#include <fstream>
#include <vector>

using namespace wf;

#define DIO_IN 14
#define DIO_OUT 14

/* ----------------------------------------------------- */

int main(void) {
    // connect to the device
    Device::Data *device_data;
    try {
        device_data = device.open();

        /* ----------------------------------------------------- */

        // use instruments here
        // initialize the logic analyzer with default settings
        logic.open(device_data);

        // set up triggering on selected DIO
        logic.trigger(device_data, true, DIO_IN, 0, 0, false);

        // generate a 100KHz PWM signal with 30% duty cycle on selected DIO
        pattern.generate(device_data, DIO_OUT, pattern.function.pulse, 100e03, 30);

        // wait 1 second
        tools.sleep(1000);

        // record data on selected DIO
        std::vector<unsigned short> buffer = logic.record(device_data, DIO_IN);

        // limit displayed data size
        int length = buffer.size();
        if (length > 10000) {
            length = 10000;
        }

        // save data
        std::ofstream file;
        file.open("test_logic-pattern.csv");
        file << "time [us],logic value\n";
        for (int index = 0; index < length; index++) {
            file << std::to_string(index * 1e06 / logic.data.sampling_frequency) << "," << std::to_string(buffer[index]) << std::endl;
        }
        file.close();

        // plot
        system("python plotting.py test_logic-pattern.csv");

        // reset the logic analyzer
        logic.close(device_data);

        // reset the pattern generator
        pattern.close(device_data);

        /* ----------------------------------------------------- */

        // close the connection
        device.close(device_data);
    }

    catch (Error error) {
        // if an error occurs display it
        std::cout << "Error: ";
        std::cout << error.instrument << " -> ";
        std::cout << error.function << " -> ";
        std::cout << error.message << std::endl;
        // close the connection
        device.close(device_data);
    }
    return 0;
}