pw_i2c_mcuxpresso#

pw_i2c_mcuxpresso implements the pw_i2c interface using the NXP MCUXpresso SDK.

The implementation is based on the i2c driver in SDK. I2C transfers use non-blocking driver API.

Setup#

This module requires following setup:

  1. Use pw_build_mcuxpresso to create a pw_source_set for an MCUXpresso SDK.

  2. Include the i2c driver component in this SDK definition.

  3. Specify the pw_third_party_mcuxpresso_SDK GN global variable to specify the name of this source set.

  4. Use pw::i2c::McuxpressoInitiator implementation of pw::i2c::Initiator while creating pw::i2c::Device or pw::i2c::RegisterDevice interface to access the I2C devices connected to target.

Usage#

constexpr uint32_t kI2CBaudRate = 100000;
constexpr McuxpressoInitiator::Config kConfig = {
    .flexcomm_address = I2C11_BASE,
    .clock_name = kCLOCK_Flexcomm11Clk,
    .baud_rate_bps = kI2CBaudRate,
};
McuxpressoInitiator initiator{kConfig};
initiator.Enable();