Component: Digital Potentiometer (MCP41XX MCP42XX) (Analog Output)
| Author | Matrix TSL |
| Version | 1.0 (Release) |
| Category | Analog Output |
Contents
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.
Examples
No additional examples
Downloadable macro reference
IncrementWiper
Increments a single volatile wiper value
Parameters
- BYTE Index
- Range: 0-3
Return value
- This call does not return a value
DecrementWiper
Decrements a single volatile wiper value
Parameters
- BYTE Index
- Range: 0-1
Return value
- This call does not return a value
SetWiper
Sets the value of a single wiper
Parameters
- BYTE Index
- Range: 0-3
- UINT Value
- 129 Taps Range: 0-128 / 257 Taps Range: 0-256
- BOOL MemoryType
- 0=Volatile, 1=Nonvolatile
Return value
- This call does not return a value
ReadAddress
Reads a value from one of the registers on the device
Parameters
- BYTE Address
- Range: 0-15
Return value
WriteAddress
Writes a value to one of the registers on the device
Parameters
- BYTE Address
- Range: 0-15
- UINT Value
- Range: 0-256
Return value
- This call does not return a value
Initialise
Startup the SPI peripheral ready for communications.
Parameters
- This macro has no parameters
Return value
- This call does not return a value
Simulation macro reference
This component does not contain any simulation macros
Property reference
Channel
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi1::CHANNEL.
SPI Channel selector
Prescale
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi1::PR_SCALE.
Prescale option selector
MOSI
This property is of type Single digital pin and can be referenced with the variable name cal_spi1::MOSI.
SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode.
MOSI Remap Pin
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi1::MOSIPins.
Select which the target pin to assign the MOSI hardware pin functionality.
MISO
This property is of type Single digital pin and can be referenced with the variable name cal_spi1::MISO.
SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.
MISO Remap Pin
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi1::MISOPins.
Select which the target pin to assign the MISO hardware pin functionality.
CLK
This property is of type Single digital pin and can be referenced with the variable name cal_spi1::CLK.
SPI Clock Pin CLK - The Clock signal is driven by the SPI master.
CLK Remap Pin
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi1::CLKPins.
Select which the target pin to assign the CLK hardware pin functionality.
CS / SS
This property is of type Single digital pin and can be referenced with the variable name cal_spi1::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.
Number of Outputs
This property is of type Fixed list of ints and can be referenced with the variable name NumOutputs.
No additional information
Number of Taps
This property is of type Fixed list of ints and can be referenced with the variable name NumTaps.
No additional information
Simulate Comms
This property is of type True or false and can be referenced with the variable name SimulateComms.
No additional information
Scope Traces
This property is of type True or false and can be referenced with the variable name cal_spi1::ScopeTraces.
Selects if the scope traces are automatically generated or not
Console Data
This property is of type True or false and can be referenced with the variable name cal_spi1::ConsoleData.
Selects if the console data is automatically generated or not
Injector
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi1::Injector.
No additional information
