Start task to sampling data

Note

The configuration task that needs to be clearly enabled is exemplified by the routine 'TestTask'


Steps:
1.Start task VkDaqStartTask
2.Get task data VkDaqGetTaskData
3.Stop task VkDaqStopTask
4.Clear task VkDaqClearTask

Example of opening a task to collect data Process Diagram

C language reference

#include <stdio.h>
#include "libvkdaq.h"
 
#define VkDaqErrChk(functionCall)       if( VkDaqFailed(error=(functionCall)) ) goto Error; else
 
int main(void)
{
    TaskHandle      taskHandle = "TestTask";
    float64         data[1000];
    int64           total = 0;
    int32           error = 0;
    int32           read = 0;
 
    // VkDaq Start Code
    VkDaqErrChk(VkDaqStartTask(taskHandle));
 
    printf("Acquiring samples continuously.\n");
    while (true) {
        // VkDaq Read Code
        read = VkDaqGetTaskData(taskHandle, data, 1000, VkDaq_Val_GroupByScanNumber, 1);
        if (read > 0) {
            printf("Acquired %d samples. Total %lld\r", read, total += read);
            fflush(stdout);
        }
    }
 
Error:
    if (VkDaqFailed(error))
        printf("VkDaq Error: %s\n", VkDaqGetLastErrorInfo());
    if (taskHandle != 0) {
        // VkDaq Stop Code
        VkDaqStopTask(taskHandle);
        VkDaqClearTask(taskHandle);
    }
    printf("End of program, press Enter key to quit\n");
    getchar();
    return 0;
}