Function
Retrieves the count edge value being set.
Format
Ret = DioGetCountEdge ( Id , ChNo , ChNum , CountEdge )
Parameters
Id
[C:short] [Python: ctypes.c_short]
Specifies the device ID retrieved from DioInit.
ChNo [C:short
*] [Python: ctypes.POINTER(ctypes.c_short)]
Specifies the start address of the array that stores the channel numbers
to get setting.
ChNum [C:short]
[Python: ctypes.c_short]
Specifies the number of channels specified in ChNo.
CountEdge
[C:short *] [Python: ctypes.POINTER(ctypes.c_short)]
Specifies the start address of the array that stores edge settings. It
is stored in the logical sum of the following.
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 [C:long] [Python: ctypes.c_long]
Definition |
Value [Dec] |
Description |
DIO_ERR_SUCCESS |
0 |
Normal complete |
DIO_ERR_DLL_INVALID_ID |
10001 |
Invalid ID is specified. |
DIO_ERR_DLL_CALL_DRIVER |
10002 |
Driver cannot be called (failed in ioctl). |
DIO_ERR_DLL_BUFF_ADDRESS |
10100 |
Invalid data buffer address. |
DIO_ERR_SYS_NOT_SUPPORTED |
20001 |
This function cannot be used for this device. |
DIO_ERR_SYS_CH_NO |
20105 |
Channel No. is outside the setting range. |
DIO_ERR_SYS_CH_NUM |
20106 |
Channel number is outside the setting range. |
The other errors: (See also: Error code details)
Initial Value
The initial value of edge setting is rising.
Example
C |
Ret = DioGetCountEdge(
Id , &ChNo[0] , ChNum , &CountEdge[0] ); |
Python |
Ret = cdio.DioGetCountEdge(
Id , ChNo , ChNum , CountEdge ) |
See Also