DioSetPwmPulseDuty

Function

Sets the PWM pulse duty cycle for the specified channel.

Format

Ret = DioSetPwmPulseDuty( Id , ChNo , ChNum , PulseDuty )

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 set.

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

PulseDuty [ VB.NET: UShort ] [ C, C++: unsigned short * ] [ C#: out ushort ] [ Python: ctypes.POINTER(ctypes.c_ushort) ]
Specify the start address of the array that stored the PWM pulse duty cycle settings.

Setting range: 0% to 100% (1% unit)

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_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_PWM_PULSE_DUTY	20902	The PWM pulse duty ratio is out of 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)

Initial Value

Remarks

Sets the PWM pulse duty cycle for the specified channel.
The duty cycle is expressed in percentage units.

Example

Set the duty cycle of channel 0 to 30% and the duty cycle of channel 1 to 80%.

VB.NET	Dim Ret As Integer Dim ChNo(1) As Short Dim PulseDuty(1) As UShort ChNo(0) = 0 ChNo(1) = 1 PulseDuty(0) = 30 PulseDuty(1) = 80 Ret = DioSetPwmPulseDuty( Id , ChNo , 2 , PulseDuty )
C, C++	long Ret; short ChNo[2] unsigned short PulseDuty[2]; ChNo[0] = 0; ChNo[1] = 1; PulseDuty[0] = 30; PulseDuty[1] = 80; Ret = DioSetPwmPulseDuty( Id , &ChNo[0] , 2 , &PulseDuty[0] );
C#	int Ret; short[] ChNo = new short[2]; ushort[] PulseDuty = new ushort[2]; ChNo[0] = 0; ChNo[1] = 1; PulseDuty[0] = 30; PulseDuty[1] = 80; Ret = dio.SetPwmPulseDuty( Id , out ChNo , 2 , out PulseDuty );
Python	Ret = ctypes.c_long() ChNoType = ctypes.c_short * 2 ChNo = ChNoType() PulseDutyType = ctypes.c_short * 2 PulseDuty = PulseDutyType() ChNo[0] = 0 ChNo[1] = 1 PulseDuty[0] = 30 PulseDuty[1] = 80 Ret.value = cdio.DioSetPwmPulseDuty( Id , ChNo , 2 , PulseDuty )