离线模式进入实时模式

注解

步骤：
1.读取设备属性：TransferMode VkDaqGetDeviceAttribute
2.修改设备属性：TransferMode 为 Online VkDaqSetDeviceAttribute

离线模式进入实时模式流程图示例

C语言参考

#include <stdio.h>
#include "libvkdaq.h"
 
#define VkDaqErrChk(functionCall)       if( VkDaqFailed(error=(functionCall)) ) goto Error; else
 
int main(void)
{
 
    int32_t         error = 0;
    char            attrValue[256];
 
    // VkDaq Start Code
    VkDaqErrChk(VkDaqGetDeviceAttribute("dev1", "TransferMode", attrValue, sizeof(attrValue)));
    printf("Current TransferMode = %s\n", attrValue);
 
    if (attrValue == "Offline") {
        VkDaqErrChk(VkDaqSetDeviceAttribute("dev1", "TransferMode", "Online"));
    }
 
    //Check
    VkDaqErrChk(VkDaqGetDeviceAttribute("dev1", "TransferMode", attrValue, sizeof(attrValue))); 
    printf("Check after setting up,TransferMode = %s\n", attrValue); 
    
 
Error:
    if (VkDaqFailed(error))
        printf("VkDaq Error: %s\n", VkDaqGetLastErrorInfo());
 
    printf("End of program, press Enter key to quit\n");
    getchar();
    return 0;
}