.. zephyr:board:: google_icetower

Overview

Google Icetower Development Board is a board created by Google for fingerprint-related functionality development.

Board has connectors for fingerprint sensors. Console is exposed over μServo_ connector. MCU can be flashed using μServo or SWD.

Hardware

STM32H7A3VIT6 LQFP100 package

Pin Mapping

Default Zephyr Peripheral Mapping:

USART_1 TX/RX : PA9/PA10
SPI_1 CS/CLK/MISO/MOSI : PA4/PA5/PA6/PA7
SPI_4 CS/CLK/MISO/MOSI : PE11/PE12/PE13/PE14

Programming and Debugging

.. zephyr:board-supported-runners::

Build application as usual for the google_icetower board, and flash using μServo or an external J-Link connected to J4. If μServo is used, please follow the Chromium EC Flashing Documentation_.

Debugging

Use SWD with a J-Link or ST-Link. Remember that SW2 must be set to CORESIGHT.

References

.. target-notes::

.. _Chromium EC Flashing Documentation: https://chromium.googlesource.com/chromiumos/platform/ec#Flashing-via-the-servo-debug-board

.. _μServo: https://chromium.googlesource.com/chromiumos/third_party/hdctools/+/master/docs/servo_micro.md