201 lines
6.7 KiB
ReStructuredText
201 lines
6.7 KiB
ReStructuredText
.. _rcar_spider_boards:
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Renesas R-Car Spider
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####################
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Overview
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********
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| R-Car S4 enables the launch of Car Server/CoGW with high performance, high-speed networking,
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| high security and high functional safety levels that are required as E/E architectures
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| evolve into domains and zones.
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| The R-Car S4 solution allows designers to re-use up to 88 percent of software code developed
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| for 3rd generation R-Car SoCs and RH850 MCU applications.\
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| The software package supports the real-time cores with various drivers and basic software
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| such as Linux BSP and hypervisors.
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The Renesas R-Car Spider board is the Renesas R-Car S4 reference board and is designed for
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evaluating features and performance of this SoC.
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.. figure:: img/rcar_s4_spider_full.jpg
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:align: center
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:alt: R-Car S4 Spider
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More information about the board can be found at `Renesas R-Car S4 Spider`_ website.
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Hardware
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********
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Hardware capabilities for the S4 Spider board can be found on the `eLinux S4 Spider`_ page.
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.. figure:: img/rcar_s4_block_diagram.jpg
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:align: center
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:alt: R-Car S4 Spider block diagram
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.. note:: We support Zephyr running on the CR52 processor that is provided for RTOS purpose.
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More information about the SoC that equips the board can be found here:
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- `Renesas R-Car S4 chip`_
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Supported Features
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==================
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Here are the current supported features when running Zephyr Project on the R-Car S4 Spider CR52:
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+-----------+------------------------------+--------------------------------+
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| Interface | Driver/components | Support level |
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+===========+==============================+================================+
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| PINMUX | pinmux | |
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+-----------+------------------------------+--------------------------------+
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| CLOCK | clock_control | |
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+-----------+------------------------------+--------------------------------+
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| GPIO | gpio | |
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+-----------+------------------------------+--------------------------------+
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| UART | uart | serial port-polling |
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+ + + +
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| | FT232RQ | serial port-interrupt |
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+-----------+------------------------------+--------------------------------+
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| I2C | i2c | interrupt driven |
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+-----------+------------------------------+--------------------------------+
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| PWM | pwm | All channels |
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+-----------+------------------------------+--------------------------------+
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It is also currently possible to write on the ram console.
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More features will be supported soon.
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Connections and IOs
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===================
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| The "Spider board" consists of a CPU board and a Breakout board.
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| The CPU board is stuck on top of the Breakout board.
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Here are the official IOs figures from eLinux for S4 board:
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`S4 Spider CPU board IOs`_
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`S4 Spider breakout board IOs`_
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GPIO
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----
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By running Zephyr on S4 Spider, the software controllable LED 'LED8' can be used as output.
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UART
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----
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Here is information about both serial ports provided on the S4 Spider board :
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+--------------------+----------+--------------------+-------------+------------------------+
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| Physical Interface | Location | Software Interface | Converter | Further Information |
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+====================+==========+====================+=============+========================+
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| CN20 USB Port | CPU Board| SCIF0/HSCIF1 | FT232HQ | Default Zephyr serial |
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+--------------------+----------+--------------------+-------------+------------------------+
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| CN21 USB Port | CPU Board| SCIF3/HSCIF0 | FT2232H-56Q | Used by U-BOOT & Linux |
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+--------------------+----------+--------------------+-------------+------------------------+
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.. note::
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The Zephyr console output is assigned to SCIF0 (CN20 USB Port) with settings:
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115200 8N1 without hardware flow control by default.
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I2C
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---
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I2C is mainly used to manage and power-on some onboard chips on the S4 Spider board.
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Embedded I2C devices and I/O expanders are not yet supported.
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The current I2C support therefore does not make any devices available to the user at this time.
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Programming and Debugging
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*************************
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Build and flash applications as usual (see :ref:`build_an_application` and
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:ref:`application_run` for more details).
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Supported Debug Probe
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=====================
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| The "Olimex ARM-USB-OCD-H" probe is the only officially supported probe.
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| This probe is supported by OpenOCD that is shipped with the Zephyr SDK.
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The "Olimex ARM-USB-OCD-H" probe needs to be connected with a "Coresight 20 pins"
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adapter to CN1 connector on Spider board.
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Configuring a Console
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=====================
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Connect a USB cable from your PC to CN20 USB port of your Spider board.
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Use the following settings with your serial terminal of choice (minicom, putty,
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etc.):
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- Speed: 115200
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- Data: 8 bits
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- Parity: None
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- Stop bits: 1
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Flashing
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========
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First of all, open your serial terminal.
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Applications for the ``rcar_spider_s4`` board configuration can be built in the
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usual way (see :ref:`build_an_application` for more details).
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: rcar_spider_s4
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:goals: flash
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You should see the following message in the terminal:
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.. code-block:: console
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*** Booting Zephyr OS build v3.3.0-rc2 ***
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Hello World! rcar_spider_s4
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Debugging
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=========
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First of all, open your serial terminal.
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Here is an example for the :ref:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: rcar_spider_s4
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:goals: debug
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You will then get access to a GDB session for debugging.
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By continuing the app, you should see the following message in the terminal:
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.. code-block:: console
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*** Booting Zephyr OS build v3.3.0-rc2 ***
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Hello World! rcar_spider_s4
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References
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**********
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- `Renesas R-Car S4 Spider`_
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- `Renesas R-Car S4 chip`_
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- `eLinux S4 Spider`_
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.. _Renesas R-Car S4 Spider:
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https://www.renesas.com/us/en/products/automotive-products/automotive-system-chips-socs/rtp8a779f0askb0sp2s-r-car-s4-reference-boardspider
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.. _Renesas R-Car S4 chip:
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https://www.renesas.com/us/en/products/automotive-products/automotive-system-chips-socs/r-car-s4-automotive-system-chip-soc-car-servercommunication-gateway
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.. _eLinux S4 Spider:
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https://elinux.org/R-Car/Boards/Spider
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.. _S4 Spider CPU board IOs:
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https://elinux.org/images/6/6d/Rcar_s4_spider_cpu_board.jpg
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.. _S4 Spider breakout board IOs:
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https://elinux.org/images/2/29/Rcar_s4_spider_breakout_board.jpg
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