DioSetCountEdge

Function

Sets the count edge.

Format

Ret = DioSetCountEdge ( Id , ChNo , ChNum , CountEdge )

Parameters

Id [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Specify the device ID retrieved from DioInit.

ChNo [ VB.NET: Short ] [ C, C++: short * ] [ C#: out short ] [ Python: ctypes.POINTER(ctypes.c_short) ]
Specify the start address of the array that stores the channel numbers to get setting.

ChNum [ VB.NET: Short ] [ C, C++: short ] [ C#: short ] [ Python: ctypes.c_short ]
Specify the number of channels specified in ChNo.

CountEdge [ VB.NET: Short ] [ C, C++: short * ] [ C#: out short ] [ Python: ctypes.POINTER(ctypes.c_short) ]
Specify the start address of the array that stored the following edge settings by OR.

Definition

Value

[Dec]

Description

DIO_COUNT_EDGE_UP

1

Rising edge(0 -> 1)

DIO_COUNT_EDGE_DOWN

2

Falling edge(1 -> 0)

Return Value

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

Definition

Value

[Dec]

Description

DIO_ERR_SUCCESS

0

Normal completed

DIO_ERR_SYS_RECOVERED_FROM_STANDBY

7

Execute DioResetDevice function because the device has recovered from standby mode

DIO_ERR_DLL_INVALID_ID

10001

Invalid ID specified.

DIO_ERR_DLL_CALL_DRIVER

10002

Not call the driver (Failure on DEVICE I/O CONTROL).

DIO_ERR_DLL_BUFF_ADDRESS

10100

Invalid data buffer address.

DIO_ERR_SYS_NOT_SUPPORTED

20001

This board couldn't use this function.

DIO_ERR_SYS_BOARD_EXECUTING

20002

Board is behaving, not execute.

DIO_ERR_SYS_CH_NO

20105

The channel number is out of specifiable range.

DIO_ERR_SYS_CH_NUM

20106

The number of channels is out of the specifiable range.

DIO_ERR_SYS_CNT_EDGE

20700

The count edge setting is out of the specifiable range.

The others (See also: Details of Error Code)

Initial Value

The initial value of edge setting is rising.

Remarks

- It counts up at the timing when the specified edge is detected.

- It can be executed only before the counter starts.

Example

Sets the channel 0 to rising, and set the channel 1 to falling.

VB.NET

Dim Ret As Integer
Dim ChNo(1) As Short
Dim CountEdge(1) As Short

ChNo(0) = 0
ChNo(1) = 1
CountEdge(0) = DIO_COUNT_EDGE_UP
CountEdge(1) = DIO_COUNT_EDGE_DOWN
Ret = DioSetCountEdge( Id , ChNo , 2 , CountEdge )
 

C, C++

long Ret;
short ChNo[2]
short CountEdge[2];

ChNo[0] = 0;
ChNo[1] = 1;
CountEdge[0] = DIO_COUNT_EDGE_UP;
CountEdge[1] = DIO_COUNT_EDGE_DOWN;
Ret = DioSetCountEdge( Id , ChNo , 2 , CountEdge );
 

C#

int Ret;
short[] ChNo = new short[2];
short[] CountEdge = new short[2];

ChNo[0] = 0;
ChNo[1] = 1;
CountEdge[0] = DIO_COUNT_EDGE_UP;
CountEdge[1] = DIO_COUNT_EDGE_DOWN;
Ret = dio.SetCountEdge( Id , out ChNo , 2 , out CountEdge );
 

Python

Ret = ctypes.c_long()
ChNoType = ctypes.c_short * 2
ChNo = ChNoType()
CountEdgeType = ctypes.c_short * 2
CountEdge = CountEdgeType()

ChNo[0] = 0
ChNo[1] = 1
CountEdge[0] = cdio.DIO_COUNT_EDGE_UP
CountEdge[1] = cdio.DIO_COUNT_EDGE_DOWN
Ret.value = cdio.DioSetCountEdge( Id , ChNo , 2 , CountEdge )
 

See Also

DioGetCountEdge