Start Offline task

Functions
int32_t	VkDaqStartOfflineTask (const char *task, uint32_t saveFormat, uint32_t saveTime, uint32_t timeInterval)
	Start offline task.

Detailed Description

Function Documentation

VkDaqStartOfflineTask()

int32_t VkDaqStartOfflineTask	(	const char *	task,
		uint32_t	saveFormat,
		uint32_t	saveTime,
		uint32_t	timeInterval
	)

Start offline task.

Note

Only supports setting up one acquisition card at the same time

data type	parameter	describe
const char*	task	Task name(string type, for example"Task1")
uint32_t	saveFormat	Data storage format Binary format: 0 Text format: 1
uint32_t	saveTime	The duration of saving a single file Range: 5-3600 seconds Note: Only valid in continuous sampling storage
uint32_t	timeInterval	Timer time interval Note: Valid only in timed limited N sampling storage

Returns

On success, return value >= 0.

On failure, returns a negative error number.For detail, please Call VkDaqGetLastErrorInfo

C language reference

#include <stdio.h>
#include "libvkdaq.h"
 
int main(int argc, char* argv[])
{
    const char* task = "task1";
    uint32_t saveTime = 60;
    uint32_t timeInterval = 0;
 
    int32_t result = VkDaqCreateTask(task); 
 
    result = VkDaqCreateAIVoltageChan(task, "dev1/AIN1", "", VkDaq_Val_SingleEnded, -10.0, 10.0, VkDaq_Val_Volts, ""); 
 
    result = VkDaqCfgSampClkTiming(task, VkDaq_Val_ClkSrc_OnBoardClk, 1000, VkDaq_Val_Rising, VkDaq_Val_FiniteSamps, 10000); 
 
    result = VkDaqCfgDigEdgeRefTrig(task, "dev1/DIN1.1", VkDaq_Val_Rising, 0); 
 
    result = VkDaqStartOfflineTask(task, VkDaq_Val_SaveFormat_CSV, saveTime, timeInterval);
 
    if (result >= 0) {
        printf("Successful\n");
    }
    else {
        printf("Failed\n");
    }
 
    return 0;
}