CharlieplexHelper< 4 > Struct Reference

Helper structure for the charlieplexing implementation. More...

#include <Charlieplex.hxx>

Static Public Member Functions
static constexpr unsigned	num_bits ()
static unsigned	pin_high (unsigned bit)
	Which pin to drive high for a given LED.
static unsigned	pin_low (unsigned bit)
	Which pin to drive low for a given LED.

Static Public Attributes
static const uint8_t	pinlist []
	Flattened list of pars of output pin numbers to use for a given LED.

Detailed Description

Helper structure for the charlieplexing implementation.

Definition at line 78 of file Charlieplex.hxx.

Member Function Documentation

num_bits()

static constexpr unsigned CharlieplexHelper< 4 >::num_bits ( )

inlinestaticconstexpr

Returns

How many LEDs are we driving.

Definition at line 83 of file Charlieplex.hxx.

pin_high()

static unsigned CharlieplexHelper< 4 >::pin_high ( unsigned  bit )

inlinestatic

Which pin to drive high for a given LED.

Parameters

bit	is the number of the LED, from 0..num_bits()-1.

Returns

index of the GPIO to drive high.

Definition at line 90 of file Charlieplex.hxx.

pin_low()

static unsigned CharlieplexHelper< 4 >::pin_low ( unsigned  bit )

inlinestatic

Which pin to drive low for a given LED.

Parameters

bit	is the number of the LED, from 0..num_bits()-1.

Returns

index of the GPIO to drive low.

Definition at line 96 of file Charlieplex.hxx.

Member Data Documentation

pinlist

const uint8_t CharlieplexHelper< 4 >::pinlist

static

Initial value:

= {
    3, 0, 
    2, 0, 
    1, 0, 
    3, 1, 
    3, 2, 
    2, 1, 
    2, 3, 
    1, 2, 
    0, 2, 
    0, 3, 
    0, 1, 
    1, 3, 
}

Flattened list of pars of output pin numbers to use for a given LED.

Definition at line 102 of file Charlieplex.hxx.

---

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

• Charlieplex.hxx