I2C Examples (Blocking API)
===========================

Overview
~~~~~~~~

The blocking I2C examples are available for both C and C++:

- C: ``examples/blocking_api/i2c/c/``
- C++: ``examples/blocking_api/i2c/cpp/``

These examples are intended for **Supernova** and **Pulsar** USB host adapters.

Hardware Setup
~~~~~~~~~~~~~~

Required hardware:

1. One Binho **Supernova** or **Pulsar**
2. One I2C target device with 7-bit address ``0x50`` (EEPROM-like/register-based target)

What The I2C Examples Do
~~~~~~~~~~~~~~~~~~~~~~~~

The C and C++ examples implement the same workflow:

1. Connect to the device.
2. Read adapter information.
3. Configure I2C bus voltage to ``3300 mV``.
4. Initialize I2C controller on ``I2C_BUS_A`` at ``200 kHz`` with ``I2C_PULLUP_330Ohm``.
5. Re-apply I2C parameters and pull-up resistor configuration.
6. Perform a non-stop write/read transfer to target ``0x50`` and verify readback.
7. Perform a standard write/read transfer to target ``0x50`` and verify readback.
8. Scan the I2C bus and print discovered 7-bit and 10-bit addresses.

Transfer Notes
~~~~~~~~~~~~~~

- The examples exercise both transfer styles:
    - Non-stop transfer (`repeated start` style).
    - Standard transfer (normal stop behavior).
- Readback verification is done after each write/read stage.
- The target subaddress used in both examples is ``{0x01, 0x00}``.

Build and Run (I2C C/C++)
~~~~~~~~~~~~~~~~~~~~~~~~~

I2C example directories build binaries with the following names:

- C (``examples/blocking_api/i2c/c/``):
    - ``example_c_dynamic``
    - ``example_c_static``
- C++ (``examples/blocking_api/i2c/cpp/``):
    - ``example_cpp_dynamic``
    - ``example_cpp_static``

See:

- C API I2C reference: :doc:`../../api/c/i2c`
- C++ blocking I2C reference: :doc:`../../api/cpp_blocking/i2c`