touchPanelTask.touchPanelTask Class Reference

Position/velocity finder for the ball. More...

Public Member Functions
def	__init__ (self, debugFlag=True)
	Create a touch panel task. More...
def	tchPanelFcn (self)
	State machine for running the touch panel driver. More...
def	transitionTo (self, state, newState)
	Method for transitioning states. More...

Public Attributes
	touchPanel
	Create an instance of the touch panel driver. More...
	debugFlag
	Debugging flag for detailed analysis while running.
	lastPosition
	The last position of the ball (X, Y, Z coordinates).

Static Public Attributes
	S0_INIT = const(0)
	The initial state to set up the task.
	S1_READ_PANEL = const(1)
	Main state to read from the panel.

Detailed Description

Position/velocity finder for the ball.

This class will allow for the position and velocity of the ball to be calculated using the resisive touch pad.

Constructor & Destructor Documentation

__init__()

def touchPanelTask.touchPanelTask.__init__	(		self,
			debugFlag = True
	)

Create a touch panel task.

This task will be called from the priority scheduler to read from the resistive touch panel (through touchPanelDriver.py) in order to find the position and velocity of the ball. This data will be shared with shares.py.

Parameters

debugFlag

Enables or prevents certain print statements from appearing.

Member Function Documentation

tchPanelFcn()

def touchPanelTask.touchPanelTask.tchPanelFcn

(

self

)

State machine for running the touch panel driver.

This generator is used to run the touch panel task. The main states are initializing the touch panel (including determining whether or not the ball is on the platform), and running the drivers to filter the position and speed.

transitionTo()

def touchPanelTask.touchPanelTask.transitionTo	(		self,
			state,
			newState
	)

Method for transitioning states.

The method will reassign the state variable when directed to transition.

Parameters

state	The current state of the system.
newState	The new desired state for the system.

Returns

The new state of the finite state machine.

Member Data Documentation

touchPanel

touchPanelTask.touchPanelTask.touchPanel

Create an instance of the touch panel driver.

This object needs the pin values for the xm, xp, ym, and yp ports on the resistive touch panel. These must be passed in as such Pin.cpu.##. Also, the length of the board, width of the board, and the coordinates of the center location must be passed in.

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The documentation for this class was generated from the following file:

• touchPanelTask.py