DioGetPwmStatus

Function

Retrieves the PWM status for the specified channel.

Format

Ret = DioGetPwmStatus( Id , ChNo , ChNum , Status , Error)

Parameters

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

ChNo [ C, C++： short * ] [ Python: ctypes.POINTER(ctypes.c_short) ]
Specify the start address of the array that stores the channel numbers to retrieve the PWM status.

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

Status [ C, C++： unsigned short * ] [ Python: ctypes.POINTER(ctypes.c_ushort) ]
Specify the start address of the array that stores the PWM status.

Bit	Description	Value
0	PWM operation status	0: PWM stopped 1: PWM operation
31:1	Reserved	-

Error [ C, C++： unsigned short * ] [ Python: ctypes.POINTER(ctypes.c_ushort) ]
(Reserved)

Return Value

Ret [ C, C++： long ] [ Python: ctypes.c_long ]

Definition	Value [Dec]	Description
DIO_ERR_SUCCESS	0	Normal completed.
DIO_ERR_DLL_INVALID_ID	10001	Invalid ID 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 board couldn't use this function.
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.
DIO_ERR_SYS_DEVICE_ERR_DRIVER_IC_ERR	21200	Driver IC error occurred.
DIO_ERR_SYS_DEVICE_ERR_PCOM_FAILURE	21201	PCOM power failure occurred.

The others (See also: Details of Error Code)

Example

Retrieve the PWM status for Channel 0 and Channel 1.