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modm::ResumableResult< bool > | write (uint8_t reg, uint8_t value) |
| write a 8bit value
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modm::ResumableResult< bool > | write16 (uint8_t reg, uint16_t value) |
| write a 16bit value
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modm::ResumableResult< bool > | read (uint8_t reg, uint8_t &value) |
| read a 8bit value
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modm::ResumableResult< bool > | read (uint8_t reg, uint8_t *buffer, uint8_t length) |
| read multiple 8bit values from a start register
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modm::ResumableResult< ReturnType > resumable | function (...) |
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int8_t | getResumableDepth () const |
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bool | isResumableRunning () const |
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bool | isTransactionRunning () |
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modm::ResumableResult< bool > | runTransaction () |
| Starts our own transaction and waits until finished.
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bool | startRead (uint8_t *buffer, std::size_t size) |
| Configures the transaction with a read operation and starts it.
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bool | startTransaction () |
| Starts the transaction with our own transaction object.
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bool | startTransaction (modm::I2cTransaction *transaction) |
| Starts the transaction with a separate transaction object.
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bool | startWrite (const uint8_t *buffer, std::size_t size) |
| Configures the transaction with a write operation and starts it.
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bool | startWriteRead (const uint8_t *writeBuffer, std::size_t writeSize, uint8_t *readBuffer, std::size_t readSize) |
| Configures the transaction with a write/read operation and starts it.
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void | stopResumable () |
| Force all resumable functions to stop running at the current nesting level.
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bool | wasTransactionSuccessful () |
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template<class I2cMaster>
class modm::Mcp23TransportI2c< I2cMaster >
MCP23xxx I2C Transport Layer.
This class manages communication with the gpio expander via the I2C bus.
The I2C interface is compliant with Fast Mode (up to 400kHz).
- See also
- modm::Mcp23x08
-
modm::Mcp23x17
- Author
- Niklas Hauser