R-Car/Boards/Wheat

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Introduction

This is the official Wiki for Renesas R-Car V2H Wheat board. Refer to R-Car page for Renesas R-Car SoC family. Information on Renesas R-Car E2 SILK board and Renesas R-Car M2 Porter board can be found on a separate pages.

Hardware

R-Car V2H Evaluation BOARD

Top view

R-Car V2H Debug BOARD

Top view
For more information go to R-Car/Boards/Wheat:Hardware

Hardware Features

R-Car V2H Evaluation BOARD

  • R-Car V2H SoC
    • ARM®Cortex-A15 Dual Core 1.0­GHz
    • Renesas image recognition core IMP-X4
    • GPU
      • PowerVR SGX531 (3D)
      • Graphics core (2D)
    • Rendering
      • Renesas Rendering core IMR-LSX3 × 6 channels
      • Renesas Rendering core IMR-LX3 × 1 channel
  • 1 GB DDR3 memory (dual channel)
  • Two flash memory chips
    • 1MB SPI
    • 64MB NOR
  • Video In
    • 4 Ether camera connections
    • 4 LVDS camera connections
  • Display unit (micro HDMI connections)
  • EthernetAVB
  • Storage connection
    • one microSD card slot
  • I2C connection
  • Can interface (2 channels)
  • Power supply: 12V
  • Dimensions: 180x155 mm

R-Car V2H Debug BOARD

  • 100Mbit Debug Ethernet
  • JTAG
  • Debug Console through CP2102 interface converter chip.
  • Dimensions: 75x75 mm

R-Car V2H SoC Documentation

TBD

Official Wheat board documentation

TBD

Where to buy

TBD

Tested peripherals

Cameras:
IMI IMI Gen4 minicube automotive camera (OV10635, MAX9271)
maxim Maxim OV10635 camera
Fakra Wires

Quick Start How To

This sections describes steps that are necessary to run a "Hello, World!" application using Yocto build. Wayland are supported.

Connect Evaluation board and Debug Board

Connection
This section explains how to connect flexible cable between boards.

  1. Lift up stopper as depicted on figure 4-1,then insert cable between connector and stopper as shown in Figure 4-2.
  2. Push both ends of stopper to lock the cable.
  3. Finally, cable and connector are become as Figure 4-3.

Build Yocto image

Refer to Yocto for steps necessary for making a Yocto image.

Connect to serial console

Use a miniUSB cable to connect the PC to R-Car V2H Wheat Debug board. CN4 must be used on Wheat side. On Linux, CP2102 driver is included with kernel versions >=2.6.12. Windows driver and sources can be found on Silicon Labs website.

Serial settings are 38400 8N1. Any standard terminal emulator program can be used.

On Linux:

picocom
sudo picocom -b 38400 DEVICE

replace DEVICE with the proper tty device name, for example /dev/ttyUSB0. Running dmesg | tail can help locating proper device.
After the successful connection, picocom should display:

picocom v1.7

port is        : /dev/ttyUSB0
flowcontrol    : none
baudrate is    : 38400
parity is      : none
databits are   : 8
escape is      : C-a
local echo is  : no
noinit is      : no
noreset is     : no
nolock is      : no
send_cmd is    : sz -vv
receive_cmd is : rz -vv
imap is        : 
omap is        : 
emap is        : crcrlf,delbs,

Terminal ready

Use Ctrl+A, Ctrl+Q to exit picocom.

minicom
sudo minicom -b 38400 -D DEVICE

replace DEVICE with the proper tty device name, for example /dev/ttyUSB0. Running dmesg | tail can help locating proper device.
After the successful connection, minicom should display:

Welcome to minicom 2.6.2

OPTIONS: I18n 
Compiled on Aug  7 2013, 13:32:48.
Port /dev/ttyUSB0

Press CTRL-A Z for help on special keys

Use Ctrl+A, Q to exit minicom.

Power on

Use 12 V power supply with a 5.5 mm barrel plug.

Configure U-Boot to boot over TFTP + NFS or from a micro SD card

Refer to Yocto Wheat page for steps necessary for running Yocto.

Bootloader

TBD

FAQ

TBD

Known Issues

TBD