MAX6966 10-channel, daisy-chainable, constant-current sink, 8bit PWM LED driver. More...

#include <modm/driver/pwm/max6966.hpp>

Public Types
enum	Register { REGISTER_PORT0 = 0x00, REGISTER_PORT1 = 0x01, REGISTER_PORT2 = 0x02, REGISTER_PORT3 = 0x03, REGISTER_PORT4 = 0x04, REGISTER_PORT5 = 0x05, REGISTER_PORT6 = 0x06, REGISTER_PORT7 = 0x07, REGISTER_PORT8 = 0x08, REGISTER_PORT9 = 0x09, REGISTER_PORT0_9 = 0x0A, REGISTER_PORT0_3 = 0x0B, REGISTER_PORT4_7 = 0x0C, REGISTER_PORT8_9 = 0x0D, REGISTER_READ_PORT7_0 = 0x0E, REGISTER_READ_PORT9_8 = 0x0F, REGISTER_CONFIGURATION = 0x10, REGISTER_RAMP_UP = 0x11, REGISTER_RAMP_DOWN = 0x12, REGISTER_CURRENT7_0 = 0x13, REGISTER_CURRENT9_8 = 0x14, REGISTER_GLOBAL_CURRENT = 0x15, REGISTER_NO_OP = 0x20 }

enum	Config { CONFIG_RUN_MODE = 0x01, CONFIG_CS_RUN = 0x02, CONFIG_RAMP_UP = 0x04, CONFIG_FADE_OFF = 0x08, CONFIG_HOLD_OFF = 0x10, CONFIG_PWM_STAGGER = 0x20, CONFIG_DOUT_OSC = 0x80 }

enum	Time { TIME_OFF = 0x00, TIME_1_16s = 0x01, TIME_1_8s = 0x02, TIME_1_4s = 0x03, TIME_1_2s = 0x04, TIME_1s = 0x05, TIME_2s = 0x06, TIME_4s = 0x07 }

enum	Current { CURRENT_2_5mA = 0x00, CURRENT_5mA = 0x01, CURRENT_7_5mA = 0x02, CURRENT_10mA = 0x03, CURRENT_12_5mA = 0x04, CURRENT_15mA = 0x05, CURRENT_17_5mA = 0x06, CURRENT_20mA = 0x07 }

enum	Brightness { ON = 0xfe, OFF = 0xff, MIN = 0x03 }
	None-intuitive correspondence between PWM value and brightness.

Static Public Member Functions
static void	initialize (max6966::Current current, uint8_t config=0)

static void	setConfiguration (uint8_t config, uint8_t driver=0)
	configure the Chip

static void	setAllConfiguration (uint8_t config)
	configure the Chip

static uint8_t	getConfiguration (uint8_t driver=0)
	get Chip configuration

static void	setRampUpTime (max6966::Time time=max6966::TIME_1s, uint8_t driver=0)
	configure the ramp up time

static void	setHoldTime (max6966::Time time=max6966::TIME_1s, uint8_t driver=0)
	configure the hold time

static void	setRampDownTime (max6966::Time time=max6966::TIME_1s, uint8_t driver=0)
	configure the ramp down time

static void	setChannel (uint16_t channel, uint8_t value)
	set the 8bit value of a single channel

static void	setChannelIntensity (uint16_t channel, uint8_t intensity)
	set the intensity of a single channel

static void	setChannels (uint8_t *values)

static void	setChannelsIntensity (uint8_t *intensity)

static void	setAllChannels (uint8_t value)

static void	setAllChannelsIntensity (uint8_t value)

static uint8_t	getChannel (uint16_t channel)
	get the 8bit value of a channel from the chip

static void	setHalfCurrent (uint16_t channel, bool full=true)

static void	setCurrent (max6966::Current current, uint8_t driver=0)
	set peak current of one driver

static void	setAllCurrent (max6966::Current current)
	set peak current of all drivers

Static Protected Member Functions
static void	writeToDriver (uint8_t driver, max6966::Register reg, uint8_t data)

static uint8_t	readFromDriver (uint8_t driver, max6966::Register reg)

static void	writeToDriverMasked (uint8_t driver, max6966::Register reg, uint8_t data, uint8_t mask)

static uint8_t	intensityToPwm (uint8_t intensity)

Detailed Description

MAX6966 10-channel, daisy-chainable, constant-current sink, 8bit PWM LED driver.

Template Parameters

Spi	Spi interface
Cs	Chip Select Pin
DRIVERS	Number of daisy-chained chips

Member Function Documentation

template<typename Spi , typename Cs , uint8_t DRIVERS = 1>

static void modm::MAX6966< Spi, Cs, DRIVERS >::initialize	(	max6966::Current	current,
		uint8_t	config = `0`
	)

static

Parameters

current	Set the global current
config	Enable Data Output, disable external Clock Input

template<typename Spi , typename Cs , uint8_t DRIVERS = 1>

static uint8_t modm::MAX6966< Spi, Cs, DRIVERS >::intensityToPwm ( uint8_t intensity )

inlinestaticprotected

Fix the stupid PWM values of MAX6966

template<typename Spi , typename Cs , uint8_t DRIVERS = 1>

static void modm::MAX6966< Spi, Cs, DRIVERS >::setAllChannels ( uint8_t value )

static

Parameters

value the 8bit value of all channels (same value for all channels)

template<typename Spi , typename Cs , uint8_t DRIVERS = 1>

static void modm::MAX6966< Spi, Cs, DRIVERS >::setChannels ( uint8_t * values )

static

More efficient version to set all channels differently Avoids writing NO_OPS. Sets the same channels of all drivers at the same time.

Parameters

values array with all pwm values for all channels and drivers.

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