Difference between revisions of "Component: Digital Potentiometer (MCP44XX) (Analog Output)"

Revision as of 11:51, 3 February 2023

The MCP44XX device range supports 4 digital potentiometers or rheostat outputs. 129 or 257 possible output resistance values for each channel.

Please click here to download the component source project: FC_Comp_Source_MCP44xx_Digital_Pot.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_MCP44xx_Digital_Pot.fcfx

No detailed description exists yet for this component

No additional examples

	IncrementWiper
Increments a single volatile wiper value
- BYTE	Index
Range: 0-3
- VOID	Return

	DecrementWiper
Decrements a single volatile wiper value
- BYTE	Index
Range: 0-3
- VOID	Return

	SetWiper
Sets the value of a single wiper
- BYTE	Index
Range: 0-3
- UINT	Value
129 Taps Range: 0-128 / 257 Taps Range: 0-256
- BOOL	MemoryType
0=Volatile, 1=Nonvolatile
- VOID	Return

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

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

	Initialise
Startup the I2C peripheral ready for communications.
- VOID	Return

	Properties
	I2C Properties
	Channel
Channel selection
	SDA
Pin used for SDA (data signal)
	SCL
Pin used for SCL (clock signal)
	Baud Select
Baud rate option selector
	Baud Rate
Baud rate to be used
	Stop Delay
On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications.
	Device Properties
	Number of Taps

	Address Bits

	Simulation
	Simulate Comms

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 ''<span style="color:red;">No additional examples</span>''
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 ==Macro reference==
+===IncrementWiper===
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+===DecrementWiper===
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+===SetWiper===
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+===ReadAddress===
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+===WriteAddress===
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+===Initialise===
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