#include <modm/driver/gpio/mcp23_transport.hpp>

Inheritance diagram for modm::Mcp23TransportSpi< SpiMaster, Cs >:

Public Member Functions
	Mcp23TransportSpi (uint8_t address)

modm::ResumableResult< bool >	ping ()
	pings the sensor

void	attachConfigurationHandler (Spi::ConfigurationHandler handler)

Protected Member Functions
modm::ResumableResult< bool >	write (uint8_t reg, uint8_t value)
	write a 8bit value

modm::ResumableResult< bool >	write16 (uint8_t reg, uint16_t value)
	write a 16bit value

modm::ResumableResult< bool >	read (uint8_t reg, uint8_t &value)
	read a 8bit value

modm::ResumableResult< bool >	read (uint8_t reg, uint8_t *buffer, uint8_t length)
	read multiple 8bit values from a start register

bool	acquireMaster ()

bool	releaseMaster ()

modm::ResumableResult< ReturnType > resumable	function (...)

int8_t	getResumableDepth () const

bool	isResumableRunning () const

void	stopResumable ()
	Force all resumable functions to stop running at the current nesting level.

Detailed Description

MCP23xxx SPI Transport Layer.

This class manages communication with the gpio expcander via the SPI bus. The SPI interface can be clocked with up to 10MHz and requires Mode3.

Template Parameters

Cs	connected Chip Select Pin

Member Function Documentation

modm::ResumableResult< ReturnType > resumable modm::NestedResumable< 1 >::function ( ... )

inherited

Run the resumable function.

You need to implement this method in you subclass yourself.

Returns: >NestingError if still running, <=NestingError if it has finished.

int8_t modm::NestedResumable< 1 >::getResumableDepth ( ) const

inheritedinline

Returns: the nesting depth in the current resumable function, or -1 if called outside any resumable function

bool modm::NestedResumable< 1 >::isResumableRunning ( ) const

inheritedinline

Returns: true if a resumable function is running at the current nesting level, else false

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