blob: 933c7054130cfbe92fca6e6403b6665581aa2c35 [file] [log] [blame]
.. _rcar_spider_boards:
Renesas R-Car Spider
####################
Overview
********
| R-Car S4 enables the launch of Car Server/CoGW with high performance, high-speed networking,
| high security and high functional safety levels that are required as E/E architectures
| evolve into domains and zones.
| The R-Car S4 solution allows designers to re-use up to 88 percent of software code developed
| for 3rd generation R-Car SoCs and RH850 MCU applications.\
| The software package supports the real-time cores with various drivers and basic software
| such as Linux BSP and hypervisors.
The Renesas R-Car Spider board is the Renesas R-Car S4 reference board and is designed for
evaluating features and performance of this SoC.
.. figure:: img/rcar_s4_spider_full.jpg
:align: center
:alt: R-Car S4 Spider
More information about the board can be found at `Renesas R-Car S4 Spider`_ website.
Hardware
********
Hardware capabilities for the S4 Spider board can be found on the `eLinux S4 Spider`_ page.
.. figure:: img/rcar_s4_block_diagram.jpg
:align: center
:alt: R-Car S4 Spider block diagram
.. note:: We support Zephyr running on the CR52 processor that is provided for RTOS purpose.
More information about the SoC that equips the board can be found here:
- `Renesas R-Car S4 chip`_
Supported Features
==================
Here are the current supported features when running Zephyr Project on the R-Car S4 Spider CR52:
+-----------+------------------------------+--------------------------------+
| Interface | Driver/components | Support level |
+===========+==============================+================================+
| PINMUX | pinmux | |
+-----------+------------------------------+--------------------------------+
| CLOCK | clock_control | |
+-----------+------------------------------+--------------------------------+
| GPIO | gpio | |
+-----------+------------------------------+--------------------------------+
| UART | uart | serial port-polling |
+ + + +
| | FT232RQ | serial port-interrupt |
+-----------+------------------------------+--------------------------------+
| I2C | i2c | interrupt driven |
+-----------+------------------------------+--------------------------------+
| PWM | pwm | All channels |
+-----------+------------------------------+--------------------------------+
It is also currently possible to write on the ram console.
More features will be supported soon.
Connections and IOs
===================
| The "Spider board" consists of a CPU board and a Breakout board.
| The CPU board is stuck on top of the Breakout board.
Here are the official IOs figures from eLinux for S4 board:
`S4 Spider CPU board IOs`_
`S4 Spider breakout board IOs`_
GPIO
----
By running Zephyr on S4 Spider, the software controllable LED 'LED8' can be used as output.
UART
----
Here is information about both serial ports provided on the S4 Spider board :
+--------------------+----------+--------------------+-------------+------------------------+
| Physical Interface | Location | Software Interface | Converter | Further Information |
+====================+==========+====================+=============+========================+
| CN20 USB Port | CPU Board| SCIF0/HSCIF1 | FT232HQ | Default Zephyr serial |
+--------------------+----------+--------------------+-------------+------------------------+
| CN21 USB Port | CPU Board| SCIF3/HSCIF0 | FT2232H-56Q | Used by U-BOOT & Linux |
+--------------------+----------+--------------------+-------------+------------------------+
.. note::
The Zephyr console output is assigned to SCIF0 (CN20 USB Port) with settings:
115200 8N1 without hardware flow control by default.
I2C
---
I2C is mainly used to manage and power-on some onboard chips on the S4 Spider board.
Embedded I2C devices and I/O expanders are not yet supported.
The current I2C support therefore does not make any devices available to the user at this time.
Programming and Debugging
*************************
Build and flash applications as usual (see :ref:`build_an_application` and
:ref:`application_run` for more details).
Supported Debug Probe
=====================
| The "Olimex ARM-USB-OCD-H" probe is the only officially supported probe.
| This probe is supported by OpenOCD that is shipped with the Zephyr SDK.
The "Olimex ARM-USB-OCD-H" probe needs to be connected with a "Coresight 20 pins"
adapter to CN1 connector on Spider board.
Configuring a Console
=====================
Connect a USB cable from your PC to CN20 USB port of your Spider board.
Use the following settings with your serial terminal of choice (minicom, putty,
etc.):
- Speed: 115200
- Data: 8 bits
- Parity: None
- Stop bits: 1
Flashing
========
First of all, open your serial terminal.
Applications for the ``rcar_spider_s4`` board configuration can be built in the
usual way (see :ref:`build_an_application` for more details).
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:board: rcar_spider_s4
:goals: flash
You should see the following message in the terminal:
.. code-block:: console
*** Booting Zephyr OS build v3.3.0-rc2 ***
Hello World! rcar_spider_s4
Debugging
=========
First of all, open your serial terminal.
Here is an example for the :ref:`hello_world` application.
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:board: rcar_spider_s4
:goals: debug
You will then get access to a GDB session for debugging.
By continuing the app, you should see the following message in the terminal:
.. code-block:: console
*** Booting Zephyr OS build v3.3.0-rc2 ***
Hello World! rcar_spider_s4
References
**********
- `Renesas R-Car S4 Spider`_
- `Renesas R-Car S4 chip`_
- `eLinux S4 Spider`_
.. _Renesas R-Car S4 Spider:
https://www.renesas.com/us/en/products/automotive-products/automotive-system-chips-socs/rtp8a779f0askb0sp2s-r-car-s4-reference-boardspider
.. _Renesas R-Car S4 chip:
https://www.renesas.com/us/en/products/automotive-products/automotive-system-chips-socs/r-car-s4-automotive-system-chip-soc-car-servercommunication-gateway
.. _eLinux S4 Spider:
https://elinux.org/R-Car/Boards/Spider
.. _S4 Spider CPU board IOs:
https://elinux.org/images/6/6d/Rcar_s4_spider_cpu_board.jpg
.. _S4 Spider breakout board IOs:
https://elinux.org/images/2/29/Rcar_s4_spider_breakout_board.jpg