Component: Digital Potentiometer (AD528X) (Analog Output): Difference between revisions

Latest revision as of 14:36, 13 July 2026

Author	Matrix TSL
Version	1.0
Category	Analog Output

Digital Potentiometer (AD528X) component

The AD528X device range supports up to 2 digital potentiometers or rheostat outputs. 256 possible output resistance values for each channel. Note: The initial value of both channels will start at 0.

Detailed description

No detailed description exists yet for this component

Examples

No additional examples

Macro reference

DecrementWiper

	DecrementWiper
Decrements a single volatile wiper value
- BOOL	Index
0=Channel1 /1=Channel2
- VOID	Return

IncrementWiper

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

Initialise

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

ReadTapValue

	ReadTapValue
Reads the tap value of the seelcted channel
- BOOL	Index
0=Channel 1 / 1=Channel 2
- BYTE	Return

SetWiper

	SetWiper
Sets the value of a single wiper
- BOOL	Index
0=Channel 1 / 1=Channel 2
- BYTE	Value
256 Taps Range: 0-255
- VOID	Return

Property reference

	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 Outputs

	Address

	Address Bits

	Simulation
	Simulate Comms

	I2C Simulation
	Scope Traces
Selects if the component pin connections are automatically generated on the data recorder window or not. Yes: Automatically add the component pins to a group on the data recorder which will reflect the sim data during simultion. No: Do not show the pin signals on the data recorder window.
	Console Data
Selects if the console data is automatically generated or not
	API
Specifies the injector component on the panel to interact with to provide comms simulation.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_AD528x_Digital_Pot.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_AD528x_Digital_Pot.fcfx

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 | colspan="2" | 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. &nbsp;
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