XPointStatic< ROWS, COLS > Class Template Reference

Zero-heap variant of XPoint with embedded state arrays. More...

#include <XPoint.h>

Inheritance diagram for XPointStatic< ROWS, COLS >:

Public Member Functions
	XPointStatic (RelayType type=RE_NON_LATCHING, uint16_t pdur=0)
Public Member Functions inherited from XPoint
	XPoint (uint8_t rows, uint8_t cols, RelayType type=RE_NON_LATCHING, uint16_t pdur=0)
	Heap-allocating constructor.
	XPoint (uint8_t rows, uint8_t cols, bool *state, bool *ilock, bool *excl, RelayType type=RE_NON_LATCHING, uint16_t pdur=0)
	Zero-heap buffer constructor.
	~XPoint ()
	Destructor. Frees heap buffers only when constructed with the heap constructor.
	XPoint (const XPoint &)=delete
XPoint &	operator= (const XPoint &)=delete
void	setDriver (XPointDriver *drv)
	Attach a driver backend.
void	begin ()
	Initialize hardware by calling drv->begin().
bool	connect (uint8_t row, uint8_t col)
	Connect row row to column col.
bool	disconnect (uint8_t row, uint8_t col)
	Disconnect row row from column col.
bool	setLevel (uint8_t row, uint8_t col, uint16_t level)
	analog-level connect / disconnect (PWM drivers).
void	clearAll ()
	Disconnect all connected nodes and zero the state table.
void	lockRows (uint8_t rowA, uint8_t rowB)
	Prevent rowA and rowB from connecting to the same column simultaneously.
void	exclusiveInput (uint8_t col)
	Mark column col as exclusive: at most one row may connect at a time.
void	update ()
	Expire latching-relay coil pulses and call releaseNode() as needed.

Detailed Description

template<uint8_t ROWS, uint8_t COLS>
class XPointStatic< ROWS, COLS >

Zero-heap variant of XPoint with embedded state arrays.

All three state arrays are embedded directly inside the object so no heap allocation ever occurs. Declare as a global or static local on AVR to keep everything in BSS / data segment.

XPointStatic<4, 4> matrix(RE_NON_LATCHING);
matrix.setDriver(&myDriver);
matrix.begin();

Template Parameters

ROWS	Number of matrix rows (compile-time constant).
COLS	Number of matrix columns (compile-time constant).

Constructor & Destructor Documentation

XPointStatic()

template<uint8_t ROWS, uint8_t COLS>

XPointStatic< ROWS, COLS >::XPointStatic ( RelayType  type = RE_NON_LATCHING, uint16_t  pdur = 0  )

inline

Parameters

[in]	type	Relay operating mode (default RE_NON_LATCHING).
[in]	pdur	Coil pulse duration in ms (default 0).

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

• src/XPoint.h