Timing configuration

Functions
int32_t	VkDaqCfgSampClkTiming (const char *task, int32_t source, double samplingFrequency, int32_t reserved, int32_t sampleMode, int32_t sampsPerChanToAcquire)
	Set the source of the sampling clock, the rate of the sampling clock, and the number of samples to be collected or generated.

Detailed Description

Function Documentation

VkDaqCfgSampClkTiming()

int32_t VkDaqCfgSampClkTiming	(	const char *	task,
		int32_t	source,
		double	samplingFrequency,
		int32_t	reserved,
		int32_t	sampleMode,
		int32_t	sampsPerChanToAcquire
	)

Set the source of the sampling clock, the rate of the sampling clock, and the number of samples to be collected or generated.

data type	parameter	describe
const char*	task	Task name.
int32_t	source	Clock source. 0: Internal clock. 1: External sync pulse. 2: master/slave.
double	samplingFrequency	Sampling Frequency. When using an external sync pulse, the sampling frequency must be consistent with the external sync pulse frequency.
int32_t	reserved	reserved.
int32_t	sampleMode	Sampling mode. In ADC mode 0：continuous sampling. 1：limited N-sampling. In DAC mode 0：Repeatedly outputting fixed waveforms. 1：Single output fixed waveform. 2：Continuously output any waveform.
int32_t	sampsPerChanToAcquire	In ADC mode: Valid for finite N sampling, used to specify the number of sampling points for finite N sampling. In ADC mode: Fixed number of waveform points

Note

Note:

In master-slave mode, the first acquisition card set during task creation is the primary card. reference： VkDaqStartTask

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", "", 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);
 
    if (result >= 0) {
        printf("Successful\n");
    }
    else {
        printf("Failed\n");
    }
 
    return 0;
}