v18.3.0

We are pleased to announce the release of TT Zephyr Platforms firmware version 18.3.0 🥳🎉.

Major enhancements with this release include:

New Features

  • DMC now reads and sends power (instead of current) from INA228 device to SMC

    • SMC now uses power reading as input to Total Board Power (TBP) throttler instead of 12 * current

  • DMC support for accessing tca9554a GPIO expanders added

Stability Improvements

  • Add I2C handshake between SMC and DMC FW to ensure that initialization messages are received

  • Total Board Power (TBP) throttler parameters have been tuned, and TBP limit is now set in the fwtable to guarantee product definition is followed

Removed APIs

  • Telemetry no longer reports TAG_INPUT_CURRENT

New APIs

  • Telemetry now reports TAG_INPUT_POWER to replace TAG_INPUT_CURRENT

Migration guide

An overview of required and recommended changes to make when migrating from the previous v18.2.0 release can be found in v18.3.0 Migration Guide.