Component: Touch Screen (XPT2046) (Displays: Graphical)
| Author | Matrix Ltd |
| Version | 2.0 (Release) |
| Category | Displays: Graphical |
Contents
Touch Screen (XPT2046) component
Low level routines for controlling or interacting with the XPT2046 touch screen controller IC found on a lot of common low cost resistive touch screen products.
Examples
Example using the XPT2046 touchscreen driver IC with a 4.3" TFT Display using the SSD1963 Graphical LCD Controller.
GLCD 4.3 Touch
Example using the XPT2046 touchscreen driver IC with a 7" TFT Display using the SSD1963 Graphical LCD Controller.
GLCD 7 Touch
Downloadable macro reference
SampleSensor
Reads the touch controller and returns true if there is currently a touch in progress.
The touch coordinates can be read using the ReadCoord macro.
Return 0 = No Touch, 1 = Touch in progress
Parameters
- This macro has no parameters
Return value
ReadCoord
Reads a coordinate returned from the Sample Sensor macro.
Coordinate is scaled to the X/Y Pixel bounds specified.
Parameters
- BYTE Coordinate
- 0 = X, 1 = Y, 2 = Pressure
Return value
Initialise
Activates the SPI peripheral and claims control over the I/O pins.
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_spi::CHANNEL.
SPI Channel selector
Prescale
This property is of type Fixed list of ints and can be referenced with the variable name cal_spi::PR_SCALE.
Prescale option selector
MOSI
This property is of type Single digital pin and can be referenced with the variable name cal_spi::MOSI.
SPI Data Out Pin SDO - Also Known as Master Out Slave In (MOSI) when used in Master mode.
MISO
This property is of type Single digital pin and can be referenced with the variable name cal_spi::MISO.
SPI Data In Pin SDI - Also Known as Master In Slave Out (MISO) when used in Master mode.
CLK
This property is of type Single digital pin and can be referenced with the variable name cal_spi::CLK.
SPI Clock Pin CLK - The Clock signal is driven by the SPI master.
CS / SS
This property is of type Single digital pin and can be referenced with the variable name cal_spi::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.
Analogue Mode
This property is of type Fixed list of ints and can be referenced with the variable name AnMode.
No additional information
X Pixel
This property is of type Unsigned integer and can be referenced with the variable name Xpix.
No additional information
Y Pixel
This property is of type Unsigned integer and can be referenced with the variable name Ypix.
No additional information
Flip X
This property is of type True or false and can be referenced with the variable name FlipX.
No additional information
Flip Y
This property is of type True or false and can be referenced with the variable name FlipY.
No additional information
Label
This property is of type Line of text and can be referenced with the variable name label.
Label used to identify the component on the panel.
Scope Traces
This property is of type True or false and can be referenced with the variable name cal_spi::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_spi::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_spi::Injector.
No additional information
