Renesas R-Car H3 Salvator-X

Overview

  • The H3 Salvator-X board is designed for evaluating the features and performance of the R-CAR H3 device from Renesas Electronics and it is also used for developing and evaluating application software for these R-CAR H3.

  • The H3 Salvator-X, based on the R-CAR H3 SIP, comes with LPDDR4 @4GB in 2-channel, each 64-bit wide+Hyperflash @64MB, CSI2 interfaces and several communication interfaces like USB, Ethernet, HDMI and can work standalone or can be adapted to other boards, via 440pin connector on bottom side.

R-Car Salvator-X kit

More information about the board can be found at Renesas R-Car Development Support website.

Hardware

Hardware capabilities for the H3 Salvator-X for can be found on the eLinux H3 Salvator-X page of the board.

R-Car Salvator-X features

Note

Zephyr will be booted on the CR7 processor provided for RTOS purpose.

More information about the SoC that equips the board can be found here:

Supported Features

Here is the current supported features when running Zephyr Project on the R-Car Salvator-X CR7:

Interface

Driver/components

Support level

PINCTRL

pinctrl

CLOCK

clock_control

GPIO

gpio

UART

uart

FT232RQ / CP2102

serial port-polling

serial port-interrupt

CAN

can

TCAN332GDCNT

normal mode

loopback mode

I2C

i2c

interrupt driven

It’s also currently possible to write on the ram console.

Connections and IOs

R-Car Salvator-X connections

GPIO

By running Zephyr on H3 Salvator-X, the software readable push buttons ‘SW20’, ‘SW21’, ‘SW22’ can be used as input, and the software contollable LEDs ‘LED4’, ‘LED5’, ‘LED6’ can be used as output.

UART

Salvator-X board is providing two serial ports:

  • one is for A53/A57 processors

  • the other one is for CR7

Both ports are converted to USB through CP2102 converters and they are exposed as follows:

Connector

Processor

CN25

A53/A57

CN26

CR7

Programming and Debugging

Build and flash applications as usual (see Building an Application and Run an Application 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 to CN1 on Salvator-X.

Configuring a Console

Connect a USB cable from your PC to CN25 and/or CN26 then 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_salvator_x board configuration can be built in the usual way (see Building an Application for more details).

# From the root of the zephyr repository
west build -b rcar_salvator_x samples/hello_world
west flash

You should see the following message in the terminal:

*** Booting Zephyr OS build v2.6.0-rc1 ***
Hello World! rcar_salvator_x

Debugging

First of all, open your serial terminal.

Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b rcar_salvator_x samples/hello_world
west debug

You will then get access to a GDB session for debug.

By continuing the app, you should see the following message in the terminal:

*** Booting Zephyr OS build v2.6.0-rc1 ***
Hello World! rcar_salvator_x

References