Component: Digital Potentiometer (MCP41XX / MCP42XX) (Analog Output)

Author	Matrix TSL
Version	1.0
Category	Analog Output

Digital Potentiometer (MCP41XX / MCP42XX) component

The MCP41XX and MCP42XX device range supports up to 2 digital potentiometers or rheostat outputs. 129 or 257 possible output resistance values for each channel.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_MCP41xx_42xx_Digital_Pot.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_MCP41xx_42xx_Digital_Pot.fcfx

Detailed description

No detailed description exists yet for this component

Examples

No additional examples

Macro reference

DecrementWiper

	DecrementWiper
Decrements a single volatile wiper value
- BYTE	Index
Range: 0-1
- VOID	Return

IncrementWiper

	IncrementWiper
Increments a single volatile wiper value
- BYTE	Index
Range: 0-1
- VOID	Return

Initialise

	Initialise
Startup the SPI peripheral ready for communications.
- VOID	Return

ReadAddress

	ReadAddress
Reads a value from one of the registers on the device
- BYTE	Address
Range: 0-15
- UINT	Return

SetWiper

	SetWiper
Sets the value of a single wiper
- BYTE	Index
Range: 0-1
- UINT	Value
129 Taps Range: 0-128 / 257 Taps Range: 0-256
- BOOL	MemoryType
0=Volatile, 1=Nonvolatile
- VOID	Return

WriteAddress

	WriteAddress
Writes a value to one of the registers on the device
- BYTE	Address
Range: 0-15
- UINT	Value
Range: 0-256
- VOID	Return

Property reference

	Properties
	SPI Properties
	Channel
SPI Channel selector
	Prescale
Prescale option selector
	MOSI
SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode.
	MOSI Remap Pin
Select which the target pin to assign the MOSI hardware pin functionality.
	MISO
SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.
	MISO Remap Pin
Select which the target pin to assign the MISO hardware pin functionality.
	CLK
SPI Clock Pin CLK - The Clock signal is driven by the SPI master.
	CLK Remap Pin
Select which the target pin to assign the CLK hardware pin functionality.
	CS / SS
Chip Select / Slave Select Pin Master Mode: General purpose output pin used to select the remote SPI device. Slave Mode: Hardware chip select pin input used to select the SPI device.
	Device Properties
	Number of Outputs
	Number of Taps
	Simulation
	Simulate Comms