51 lines
1.3 KiB
ReStructuredText
51 lines
1.3 KiB
ReStructuredText
.. _google_dragonclaw_board:
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Google Dragonclaw Development Board
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###################################
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Overview
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********
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Dragonclaw is a board created by Google for fingerprint-related functionality
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development. See the `Dragonclaw Schematics`_ for board schematics, layout and
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BOM.
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Board has connectors for fingerprint sensors. Console is exposed over μServo
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connector. MCU can be flashed using μServo or SWD.
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Hardware
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********
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- STM32F412CGU6 UFQFPN48 package
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Peripherial Mapping
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===================
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- USART_1 TX/RX : PA9/PA10
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- USART_2 TX/RX : PA2/PA3
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- SPI_1 CS/CLK/MISO/MOSI : PA4/PA5/PA6/PA7
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- SPI_2 CS/CLK/MISO/MOSI : PB12/PB13/PB14/PB15
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Programming and Debugging
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*************************
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Build application as usual for the ``dragonclaw`` board, and flash
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using μServo or an external J-Link connected to J4. If μServo is used, please
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follow the `Chromium EC Flashing Documentation`_.
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Debugging
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=========
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Use SWD with a J-Link or ST-Link. Remember that SW2 must be set to CORESIGHT.
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References
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**********
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.. target-notes::
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.. _Dragonclaw Schematics:
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https://www.chromium.org/chromium-os/dragonclaw/dragonclaw_v0.2.html
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.. _Chromium EC Flashing Documentation:
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https://chromium.googlesource.com/chromiumos/platform/ec#Flashing-via-the-servo-debug-board
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