Function
Sets the preset register. Supports multi-processing.
Format
Ret = CntSetPresetRegister ( Id , ChNo , PresetData , Reserved )
Parameters
Id
[ C, C++ : short] [Python: ctypes.c_short]
Specifies the device ID retrieved from CntInit.
ChNo
[ C, C++ : short] [Python: ctypes.c_short]
Specifies the channel number which you want to set.
PresetData
[ C, C++ : unsigned int] [Python: ctypes.c_uint]
Specify the preset value.
Allowable setting range:
0h <= PresetData <= FFFFFFFFh
Reserved
[ C, C++ : short] [Python: ctypes.c_short]
Specify 0.
Return Value
Ret [ C, C++ : long] [Python: ctypes.c_long]
Definition |
Value |
Description |
CNT_ERR_SUCCESS |
0 |
Normal Complete |
CNT_ERR_DLL_INVALID_ID |
10001 |
Invalid ID is specified. |
CNT_ERR_DLL_CALL_DRIVER |
10002 |
Driver cannot be called (failed in ioctl). |
CNT_ERR_SYS_CH_NO |
20201 |
Channel number is outside the range. |
The other errors: (See also: Details of Error Code)
Remarks
The value specified by this function is set in the preset register, and used when a given hardware condition occurs. To set a counter to a given value immediately, use the CntPreset function rather than this function.
Example
C, C++ |
Ret = CntSetPresetRegister
(Id, 0, 10000, 0); |
Python |
Ret = ccnt.CntSetPresetRegister
(Id, 0, 10000, 0) |
See Also