1.3.2.1 How the Library Works

The I²C Bit Bang library is a single-client, single-instance interface.

Working Flow

• It uses a timer peripheral to generate the I²C waveforms at the configured I²C clock speed

• The block of data is transferred in a non-blocking manner using the timer peripheral interrupt

• Application can register a callback to get notified when the I²C transfer is complete

• Once the transfer is complete, the library calls the callback registered by the application from the timer interrupt context or the application can poll the status of the transfer