Continuous collection of voltage data

Note

Steps:
1.Create task. VkDaqCreateTask
2.Create voltage channel VkDaqCreateAIVoltageChan
3.Set sampling clock VkDaqCfgSampClkTiming
4.Start task VkDaqStartTask
5.Get task data VkDaqGetTaskData
6.Stop task VkDaqStopTask
7.Clear task VkDaqClearTask

Example of Continuous Acquisition Voltage 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 = "VkDaqTaskHandle";
    float64         data[1000];
    int64           total = 0;
    int32           error = 0;
    int32           read = 0;
 
    // VkDaq Configure Code
    VkDaqErrChk(VkDaqCreateTask(taskHandle));
    VkDaqErrChk(VkDaqCreateAIVoltageChan(taskHandle, "dev1/AIN1", "", VkDaq_Val_SingleEnded, -10.0, 10.0, VkDaq_Val_Volts, ""));
    VkDaqErrChk(VkDaqCfgSampClkTiming(taskHandle, VkDaq_Val_ClkSrc_OnBoardClk, 10000, VkDaq_Val_Rising, VkDaq_Val_ContSamps, 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;
}