Icetower Development Board
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 [2] 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
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 [1].
Debugging
Use SWD with a J-Link or ST-Link. Remember that SW2 must be set to CORESIGHT.