Utilities for 74HC595 daisy-chain index computation. More...

Functions
uint16_t	rowMajorIndex (uint8_t row, uint8_t col, uint8_t cols)
	Compute the row-major bit index for node (row, col).

Detailed Description

Utilities for 74HC595 daisy-chain index computation.

Function Documentation

uint16_t HC595Helper::rowMajorIndex	(	uint8_t	row,
		uint8_t	col,
		uint8_t	cols
	)

inline

Compute the row-major bit index for node (row, col).

Maps a 2-D matrix position to a flat bit index for a 74HC595 chain wired in row-major order (row 0 bits first, then row 1, etc.).

Parameters

[in]	row	Row index (zero-based).
[in]	col	Column index (zero-based).
[in]	cols	Total number of columns in the matrix.