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- use `@image` instead of inline images for better aesthetics, especially on mobile form factors (where the image before overflowed the screen width) - add pinout diagram - use correct units
53 lines
1.6 KiB
Plaintext
53 lines
1.6 KiB
Plaintext
/**
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@defgroup boards_adafruit-grand-central-m4-express Adafruit Grand Central M4 Express
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@ingroup boards
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@brief Support for the Adafruit Grand Central M4 Express
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General information
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===================
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@image html https://cdn-learn.adafruit.com/assets/assets/000/068/748/medium800/adafruit_products_grand_central_top_angle.jpg "Picture of the Adafruit Grand Central M4 Express"
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The main features of the board are:
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- ATSAMD51 Cortex M4 running at 120 MHz
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- Hardware DSP and floating point support
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- 1 MiB Flash
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- 256 KiB RAM
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- external 8 MB QSPI Flash storage
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- 32-bit, 3.3V logic and power
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- Micro SD Card slot connected to SPI
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- native USB
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Pinout
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------
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@image html https://cdn-learn.adafruit.com/assets/assets/000/115/366/original/adafruit_products_Adafruit-Grand-Central-M4-Express-Pinout.png "Official Pinout of the Grand Central M4 Express"
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Links
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=====
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- [Overview](https://learn.adafruit.com/adafruit-grand-central)
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- [Schematics](https://learn.adafruit.com/assets/69175)
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Flash the board
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===============
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The board is flashed using its on-board
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[boot loader](https://github.com/adafruit/uf2-samdx1).
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The process is automated in the usual `make flash` target.
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If RIOT is already running on the board, it will automatically reset the CPU
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and enter the bootloader. If some other firmware is running or RIOT crashed,
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you need to enter the bootloader manually by double tapping the board's reset
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button.
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Readiness of the bootloader is indicated by LED pulsing in red.
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### Accessing STDIO
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The usual way to obtain a console on this board is using an emulated USB serial
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port.
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*/
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