MicroBitI2C Class Reference

Constructor.

Create an instance of MicroBitI2C for I2C communication.

Parameters:

sda	the Pin to be used for SDA
scl	the Pin to be used for SCL

 MicroBitI2C i2c(I2C_SDA0, I2C_SCL0);

Note:

This class presents a wrapped mbed call to capture failed I2C operations caused by a known silicon bug in the nrf51822. Attempts to automatically reset and restart the I2C hardware if this case is detected.

For reference see PAN56 in:

https://www.nordicsemi.com/eng/nordic/Products/nRF51822/PAN-nRF51822/24634

v2.0 through to v2.4

Definition at line 54 of file MicroBitI2C.cpp.

Performs a complete read transaction.

The bottom bit of the address is forced to 1 to indicate a read.

Parameters:

address	8-bit I2C slave address [ addr | 1 ]
data	A pointer to a byte buffer used for storing retrieved data.
length	Number of bytes to read.
repeated	if true, stop is not sent at the end. Defaults to false.

Returns:

MICROBIT_OK on success, MICROBIT_I2C_ERROR if an unresolved read failure is detected.

Definition at line 72 of file MicroBitI2C.cpp.

Performs a complete write transaction.

The bottom bit of the address is forced to 0 to indicate a write.

Parameters:

address	8-bit I2C slave address [ addr | 0 ]
data	A pointer to a byte buffer containing the data to write.
length	Number of bytes to write
repeated	if true, stop is not sent at the end. Defaults to false.

Returns:

MICROBIT_OK on success, MICROBIT_I2C_ERROR if an unresolved write failure is detected.

Definition at line 110 of file MicroBitI2C.cpp.