Functions | |
| void | i2c_transfer_asynch (i2c_t *obj, const void *tx, size_t tx_length, void *rx, size_t rx_length, uint32_t address, uint32_t stop, uint32_t handler, uint32_t event, DMAUsage hint) |
| Start I2C asynchronous transfer. More... | |
| uint32_t | i2c_irq_handler_asynch (i2c_t *obj) |
| The asynchronous IRQ handler. More... | |
| uint8_t | i2c_active (i2c_t *obj) |
| Attempts to determine if the I2C peripheral is already in use. More... | |
| void | i2c_abort_asynch (i2c_t *obj) |
| Abort asynchronous transfer. More... | |
| void i2c_abort_asynch | ( | i2c_t * | obj | ) |
Abort asynchronous transfer.
This function does not perform any check - that should happen in upper layers.
| obj | The I2C object |
| uint8_t i2c_active | ( | i2c_t * | obj | ) |
Attempts to determine if the I2C peripheral is already in use.
| obj | The I2C object |
| uint32_t i2c_irq_handler_asynch | ( | i2c_t * | obj | ) |
The asynchronous IRQ handler.
| obj | The I2C object which holds the transfer information |
| void i2c_transfer_asynch | ( | i2c_t * | obj, |
| const void * | tx, | ||
| size_t | tx_length, | ||
| void * | rx, | ||
| size_t | rx_length, | ||
| uint32_t | address, | ||
| uint32_t | stop, | ||
| uint32_t | handler, | ||
| uint32_t | event, | ||
| DMAUsage | hint | ||
| ) |
Start I2C asynchronous transfer.
| obj | The I2C object |
| tx | The transmit buffer |
| tx_length | The number of bytes to transmit |
| rx | The receive buffer |
| rx_length | The number of bytes to receive |
| address | The address to be set - 7bit or 9bit |
| stop | If true, stop will be generated after the transfer is done |
| handler | The I2C IRQ handler to be set |
| event | Event mask for the transfer. See I2C Events Macros |
| hint | DMA hint usage |
