Multiple Analog Input Trigger Configuration

Functions
int32_t int32_t	VkDaqCfgAnlgMultiEdgeRefTrig (const char *task, const char *triggerSources, int32_t triggerEdgeArray[], double triggerLevelArray[], uint32_t arraySize, uint32_t reserved)
	Multiple Analog Input Trigger Configuration.

Detailed Description

Function Documentation

VkDaqCfgAnlgMultiEdgeRefTrig()

int32_t int32_t VkDaqCfgAnlgMultiEdgeRefTrig	(	const char *	task,
		const char *	triggerSources,
		int32_t	triggerEdgeArray[],
		double	triggerLevelArray[],
		uint32_t	arraySize,
		uint32_t	reserved
	)

Multiple Analog Input Trigger Configuration.

Note

You can use the following code to read a list of all trigger sources for a device.

#include <stdio.h>
#include "libvkdaq.h"
 
int main(int argc, char* argv[])
{
 
   const char* dev = "dev1";
   const char* attrName = "TriggerSourceAvailable";
   char attrValue[4096] = { 0 };
   int32_t size = sizeof(attrValue); 
 
   int32_t result = VkDaqGetDeviceAttribute(dev, attrName, attrValue, size); 
 
   printf("TriggerSourceAvailable = %s \n", attrValue); 
 
   if (result >= 0) {
       printf("Successful\n");
   }
   else {
       printf("Failed\n");
   }
 
   return 0;
}

data type	parameter	describe
const char*	task	Task name.
const char*	triggerSource	Multiple analog input trigger signal sources, such as "dev1/AIN1:4", "dev1/AIN1:2", etc
int32_t[]	triggerEdgeArray[]	Multiple triggering edges 0: Falling edge 1: Rising edge 2: Low level 3: High level For example, all four channels are triggered by falling edges: triggerEdgeArray []={0,0,0,0}
double[]	triggerLevelArray[]	The trigger level of each trigger source, range: -10.0000000~10.0000000 For example, the trigger levels of all four channels are 1.0V: triggerLevelArray []={1.0, 1.0, 1.0, 1.0}
uint32_t	arraySize	Number of trigger sources
uint32_t	reserved	Reserved.

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";
 
    int32_t result = VkDaqCreateTask(task);
 
    result = VkDaqCreateAIVoltageChan(task, "dev1/AIN1:4", "", VkDaq_Val_SingleEnded, -10.0, 10.0, VkDaq_Val_Volts, ""); 
 
    result = VkDaqCfgSampClkTiming(task, VkDaq_Val_ClkSrc_OnBoardClk, 10000, VkDaq_Val_Rising, VkDaq_Val_FiniteSamps, 1000);
    
    result = VkDaqCfgAnlgMultiEdgeRefTrig(task, "dev1/DIN1.1", VkDaq_Val_Rising, 0);  
 
    if (result >= 0) {
        printf("Successful\n");
    }
    else {
        printf("Failed\n");
    }
 
    return 0;
}