AioGetAiClockEdge


Function

Retrieves the timing of external clock input.

Format

Ret = AioGetAiClockEdge ( Id , AiClockEdge )

Parameters

Id [ VB.NET : Short ] [ C, C++ : short ] [ C# : short ] [ Python : ctypes.c_short ]
Specifies the ID retrieved from AioInit function.

AiClockEdge [ VB.NET : Short ] [ C, C++ : short * ] [ C# : out short ] [ Python : ctypes.POINTER(ctypes.c_short) ]
Specifies the address of the variable that stores the timing of external input.

0

External input falling edge

1

External input rising edge

Return value

Ret [ VB.NET : Integer ] [ C, C++ : long ] [ C# : int ] [ Python : ctypes.c_long ]

Return values

Content

0

Normality completion

7

Execute AioResetDevice function because the device has recovered from standby mode

10001

Invalid Id was specified
Use the Id retrieved from AioInit to specify the Id in this function.

10002

AIO driver can't be called
At first, perform AioInit function.

12320

Pointer to AiClockEdge is NULL
Specify the address of variable to parameter.

20001

This function can't be used by this device

20002

Can not use while by another device works
To use this function, analog input operation must be stopped.

20003

Can not use because another process is using the device
When another process is using the device, all functions except for those that support multi-process can not be performed.

Initial value

External input falling edge is used for all devices. *

* In case of using ADA16-8/2(LPCI)L and AD16-16(LPCI)L
For these devices, the default value has both parameters (rising or falling), it depends on manufacturer's serial version.

Remarks

This function cannot be used on devices without the analog input function.
If the device is in operation, the function cannot be performed.

DEMO DEVICE do not support external clock function.

Example

Retrieves the timing of external clock.

VB.NET

Dim Ret As Integer
Dim AiClockEdge As Short
Ret = AioGetAiClockEdge ( Id , AiClockEdge )
 

C, C++

long Ret;
short AiClockEdge;
Ret = AioGetAiClockEdge ( Id , &AiClockEdge );
 

C#

int Ret;
short AiClockEdge;
Ret = aio.GetAiClockEdge ( Id , out AiClockEdge );
 

Python

Ret = ctypes.c_long()
AiClockEdge = ctypes.c_short()
Ret.value = caio.AioGetAiClockEdge ( Id , ctypes.byref(AiClockEdge) )
 

See also

AioSetAiClockEdge AioGetAiClockType