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modm::pca9535< I2cMaster > Class Template Reference
External Device Drivers » PCA9535 16-Bit I/O Expander

#include <modm/driver/gpio/pca9535.hpp>

Inheritance diagram for modm::pca9535< I2cMaster >:
modm::I2cDevice< I2cMaster > modm::GpioExpander

Public Typedefs

typedef modm::Flags16< Pin > Pins
 
using PortType = uint16_t
 
template<Pca9535< I2cMaster > & object, Pin StartPin, uint8_t Width, GpioPort::DataOrder DataOrder = GpioPort::DataOrder::Normal>
using Port = GpioExpanderPort< Pca9535< I2cMaster >, object, StartPin, Width, DataOrder >
 Alias-templates for simpler use of the Port.
 
template<Pca9535< I2cMaster > & object>
using P0_0 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P0_0 >
 
template<Pca9535< I2cMaster > & object>
using P0_1 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P0_1 >
 
template<Pca9535< I2cMaster > & object>
using P0_2 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P0_2 >
 
template<Pca9535< I2cMaster > & object>
using P0_3 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P0_3 >
 
template<Pca9535< I2cMaster > & object>
using P0_4 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P0_4 >
 
template<Pca9535< I2cMaster > & object>
using P0_5 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P0_5 >
 
template<Pca9535< I2cMaster > & object>
using P0_6 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P0_6 >
 
template<Pca9535< I2cMaster > & object>
using P0_7 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P0_7 >
 
template<Pca9535< I2cMaster > & object>
using P1_0 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P1_0 >
 
template<Pca9535< I2cMaster > & object>
using P1_1 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P1_1 >
 
template<Pca9535< I2cMaster > & object>
using P1_2 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P1_2 >
 
template<Pca9535< I2cMaster > & object>
using P1_3 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P1_3 >
 
template<Pca9535< I2cMaster > & object>
using P1_4 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P1_4 >
 
template<Pca9535< I2cMaster > & object>
using P1_5 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P1_5 >
 
template<Pca9535< I2cMaster > & object>
using P1_6 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P1_6 >
 
template<Pca9535< I2cMaster > & object>
using P1_7 = GpioExpanderPin< Pca9535< I2cMaster >, object, Pin::P1_7 >
 

Public Types

enum  Pin : uint16_t {
  P0_0 = (1 << 0), P0_1 = (1 << 1), P0_2 = (1 << 2), P0_3 = (1 << 3),
  P0_4 = (1 << 4), P0_5 = (1 << 5), P0_6 = (1 << 6), P0_7 = (1 << 7),
  P1_0 = (1 << 8), P1_1 = (1 << 9), P1_2 = (1 << 10), P1_3 = (1 << 11),
  P1_4 = (1 << 12), P1_5 = (1 << 13), P1_6 = (1 << 14), P1_7 = (1 << 15)
}
 

Public Member Functions

 Pca9535 (uint8_t address=0x20)
 Constructor, sets address to default of 0x20 (range 0x20 - 0x27)
 
bool setOutput (Pins pins)
 
bool set (Pins pins)
 
bool reset (Pins pins)
 
bool toggle (Pins pins)
 
bool set (Pins pins, bool value)
 
bool isSet (Pin pin) const
 
modm::Gpio::Direction getDirection (Pin pin) const
 
bool setInput (Pins pins)
 
bool setInvertInput (Pins pins)
 
bool resetInvertInput (Pins pins)
 
bool read (Pins pins) const
 
bool readInput ()
 
bool writePort (PortType data)
 
bool readPort (PortType &data)
 
Pins getDirections () const
 
Pins getOutputs () const
 
Pins getInputs () const
 
Pins getPolarities () const
 
void attachConfigurationHandler (I2c::ConfigurationHandler handler)
 
bool ping ()
 
bool read (uint8_t *buffer, std::size_t size)
 Starts a write transaction and waits until finished.
 
void setAddress (uint8_t address)
 
bool write (const uint8_t *buffer, std::size_t size)
 Starts a write transaction and waits until finished.
 
bool writeRead (const uint8_t *writeBuffer, std::size_t writeSize, uint8_t *readBuffer, std::size_t readSize)
 Starts a write-read transaction and waits until finished.
 
bool read (Pins pins) const
 
bool readPort (PortType &data)
 Reads the entire port, buffers them and outputs the result to data.
 
bool reset (Pins pins)
 
bool set (Pins pins)
 
bool set (Pins pins, bool value)
 
bool setInput (Pins pins)
 Sets one or more pins to input.
 
bool setOutput (Pins pins)
 Sets one or more pins to output.
 
bool toggle (Pins pins)
 
bool writePort (PortType data)
 

Static Public Member Functions

static constexpr uint8_t indexFromPin (Pin pin)
 

Static Public Attributes

static constexpr uint8_t width = 16
 

Protected Member Functions

bool isTransactionRunning ()
 
bool runTransaction ()
 Starts our own transaction and waits until finished.
 
bool startTransaction ()
 Starts the transaction with our own transaction object.
 
bool startTransaction (modm::I2cTransaction *transaction)
 Starts the transaction with a separate transaction object.
 
bool wasTransactionSuccessful ()
 

Protected Attributes

I2cWriteReadTransaction transaction
 

Detailed Description

template<typename I2cMaster>
class modm::pca9535< I2cMaster >

Author
Niklas Hauser

Member Typedef Documentation

template<typename I2cMaster >
template<Pca9535< I2cMaster > & object>
using modm::pca9535< I2cMaster >::P0_0 = GpioExpanderPin< Pca9535<I2cMaster>, object, Pin::P0_0 >

Alias-templates for simpler use of the Pin

Member Function Documentation

void modm::I2cDevice< I2cMaster, 10 , I2cWriteReadTransaction >::attachConfigurationHandler ( I2c::ConfigurationHandler  handler)
inheritedinline

Attaches a configuration handler, which is called before a transaction, whenever the configuration has to be changed.

bool modm::I2cDevice< I2cMaster, 10 , I2cWriteReadTransaction >::isTransactionRunning ( )
inheritedinlineprotected
Returns
true when transaction is busy.
bool modm::I2cDevice< I2cMaster, 10 , I2cWriteReadTransaction >::ping ( )
inheritedinline
Return Values
truedevice responds to address
falseno device with address found
bool modm::GpioExpander::read ( Pins  pins) const
inherited

Returns true if all pins have a high level

Warning
This function operates on the buffered input read. You have to call readInput() to update the result.
bool modm::GpioExpander::reset ( Pins  pins)
inherited

Resets one or more pins to logic low

Warning
only modifies pins that have previously been set to output!
bool modm::GpioExpander::set ( Pins  pins)
inherited

Sets one or more pins to logic high

Warning
only modifies pins that have previously been set to output!
bool modm::GpioExpander::set ( Pins  pins,
bool  value 
)
inherited

sets one or more pins to high or low level

Warning
only modifies pins that have previously been set to output!
void modm::I2cDevice< I2cMaster, 10 , I2cWriteReadTransaction >::setAddress ( uint8_t  address)
inheritedinline

Sets a new address of the slave device.

Parameters
addressthe slave address not yet shifted left (address < 128).
bool modm::GpioExpander::toggle ( Pins  pins)
inherited

Toggles one or more pins

Warning
only modifies pins that have previously been set to output!
bool modm::I2cDevice< I2cMaster, 10 , I2cWriteReadTransaction >::wasTransactionSuccessful ( )
inheritedinlineprotected
Returns
true when transaction did not return an error.
bool modm::GpioExpander::writePort ( PortType  data)
inherited

Writes data to the entire port

Warning
only modifies pins that have previously been set to output!
The documentation for this class was generated from the following file: