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General Information

Sharing of RZ/G2L Board Documentation

RZ/V2L Boot Loaders Warning

⚠️ Warning.

The pre-loaded bootloaders (u-boot and ARM Trusted Firmware) on the RZ/V2L Evaluation Kit (SMARC board) are not up to date with the current BSP. It is strongly recommended that the bootloaders generated when building the BSP as described in the Startup Guide document that is distributed with the BSP Package, be programmed into SPI Flash on the board using Flash Writer.

Known issues with pre-loaded loaders.

  • DRP Demos will prematurely exit.
  • ISP Demos will prematurely exit.
  • RZV2L Multi-OS CM33 Debug fails connection

Available Demos

⭐ Prebuilt Demo Images ⭐

Renesas has prepared pre-built images available for download from renesas.com.


⭐⭐ RZ/V2L AI SDK Applications Demo SD Image


RZ/V2L DRP-AI Object Detection and Pose Estimation DEMO


RZ/V2L DRP-AI USB Camera HTTP Demo SD Image version

RZ/V2L DRP-AI USB Camera HTTP Demo Pre-build version

DRP-AI Pretrained Applications

Please see the DRP-AI Pretrained Models page for details about pretrained applications.

DRP-AI Demos

The RZV2L DRP-AI Demos can be found here.

These demos include pre-build applications, source code and documentation about the DRP-AI.

Simple ISP Demos

Information about the RZV2L Simple ISP can be found here.

These demos include pre-build applications, source code and documentation about the DRP-AI and ISP.

Camera Data Receive Unit (CRU) Sample App

GStreamer Application Note

Getting Started

📄 Board User Manual

The User Manual for the boards can be found their website pages on renesas.com.
Check the 'General Information' section on this page for the links.

📦 What is included in the kit

  • A Micro USB cable for serial console.

🛒 What you will need to purchase

  • Power:   (Required) USB Type-C power supply. 5V or 9V can be used. To use 9V, switch SW11-4 change is needed (please see the board manual).
    HDMI LCD:   An LCD monitor with an HMDI input. Here is a list of tested touchscreen monitors:   RZ-G/RZ-G2L_SMARC#LCD_Monitors
    mini-HDMI Adapter:   The connector on the board is type mini-HDMI.
    USB Camera:   A camera supporting USB Video Class (UVC) such as Logitec C270, C920, C922, BRIO Ultra HD Pro.
    USB Mouse:   In the case that you do not have a touchscreen LCD monitor.

💻 Build Environment

Info
⚠️ The BSP will only build in Ubuntu 20.04
  • To build the BSP, you will need a Linux PC running Ubuntu 20.04. This was the only host OS that was tested and that specific version is a requirement of Yocto 3.1 (dunfell). Using Ubuntu 22.04 will not work
  • You can use a Linux PC (recommended) or a Virtual Machine. If using a Virtual Machine, 200GB of hard drive space is recommended for the minimum build.
  • If you are not currently running Ubuntu 20.04, you can use a docker container.
    • Example: Host Machine = Ubuntu 22.04 + Docker Container running Ubuntu 20.04 inside of it

    • The Renesas RZV AI SDK provides board bring up of the EVK and AI Demos.

    • RZV2L Getting Started using pre-build images Link
      • PreBuilt Images Link
    • RZV2L Yocto Getting Started Link 


    SD Card Prepare and Booting

    Info
    titleFactor Boot Loader Warning

    Please read section V2L Boot Loaders Warning about the factory boot loaders programmed into the EVK boards.

    Format and Load an SD Card

    • The evaluation boards can be booted from SD Cards. The SD card must be formatted and loaded using a Linux PC. A helpful script has been created (usb_sd_partition) that you can run on your Linux PC.
    • Insert your micro SD card into a USB-SD-Card reader and then plug into a Linux PC.
    • Use the commands below to download the formatting script and run. Please select your card and choose the default settings.
    $ wget https://raw.githubusercontent.com/
    Some docker setup instructions and scripts are provided to make it easy to get started.https://github.com/
    renesas-rz/rzg2_bsp_scripts
    /tree/master/docker_setup

    💾 Downloading the Linux BSP

    Up to 5 packages are used to build the BSP.

    Please download from the Official RZ/V2L Website. Please look in the "Software Downloads" section.

    Links to all the downloads can be found on the 📦 RZ/V2 Linux BSP on this site. Please refer to the sections that support RZ/V2L.

    Copy all ZIP file to a Linux PC.

    The evaluation versions contain a time limitation that stops the software after a few hours.

    • RZ/V Verified Linux Package: RTK0EF0045Z0024AZJ-<version>.zip.
    • RZ MPU Graphics Library Evaluation Version: RTK0EF0045Z13001ZJ-<version>_EN.zip
    • RZ MPU Video Codec Library Evaluation Version: RTK0EF0045Z15001ZJ-<version>_EN.zip
    • RZ/V2L DRP-AI Support Package: r11an0549ej<version>-rzv2l-drpai-sp.zip
    • RZ/V2L ISP Support Package ("Simple ISP" by DRP-AI): r11an0561ej<version>-rzv2l-isp-sp.zip
    • HTML5 Packages for Gecko91 or Gecko102 (firefox and webviewer; released for RZ/G2L only, but could be used for RZ/V2L as well): RTK0EF0045Z40001ZJ_<version>.zip

    (*): Refer to DRP-AI Demos section for changes to the DRP-AI package that could effect you application.

    🔨 Building the BSP

    • ⚠️ The complete build environment created by 'Linux BSP package' + 'DRP-AI Support package' + 'ISP Support package' must be combined into the same directory.
    • Use the directory name "rzv_vlp_v3.0.4"
    • Detailed instructions for setup and building are located in the Release Note documents included in each ZIP package for "Linux BSP" and "DRP-AI Support".
    • ⚠️ Please follow these steps in order:
      • Step 1: You must first follow the Linux BSP Release Note instructions Section 2.1, but stop 🛑 before the 'bitbake' command.
        • This Step includes adding the Video Codec ( H.264 encode decode ) and Graphics Components
      • Step 2: (Required for eAI, OpenCV, and ISP ) DRP-AI Support 'Release Note' (r11an0549ej<version>-rzv2l-drpai-sp.pdf) Sections 3.1 and 3.2, but stop 🛑 before the 'bitbake' command.
      • Step 3: ( Optional ) OpenCV Accelerator ( r11an0845ej<version>-rzv2l-opencv-accelerator-sp.pdf ) Section 2.1, but stop 🛑 before the 'bitbake' command. 
        • Requires DRP-AI Package ( see Step 2 )
        • Image Processing Acceleration of OpenCV library
      • Step 4: ( Optional ) ISP Support 'Release Note' ( r11an0561ej<version>-rzv2l-isp-sp.pdf) Section 2.0, but stop 🛑 before the 'bitbake' command. 
        • Requires DRP-AI Package ( see Step 2 )
        • Provides DRP Simple ISP
        • If not installed external ISP is needed ( i.e. a Camera Model that includes ISP )
      • Step 5: ( Optional ) Multi-OS Package ( r01an7254ej<version>-rzv-multi-os-pkg.pdf )  Section 3.2.4, but stop 🛑 before the 'bitbake' command.
        • Provides CM33 Co-processor Support and OpenAMP (Multi-Processor Communication ).
      • Step 6: Start Yocto Build with bitbake command
    • A summary of the instructions located in the Release Notes are below. Simply Copy/Paste the commands.
    Expand
    titleSimple build instructions for BSP v3.0,4
    These instructions are a summary of what is explained in the package Release Notes.
export WORK_DIR=<set to path to Yocto build directory> 
export SRC_DIR=<set to path to Renesas RZV zip file>
mkdir $WORK_DIR

### Extract the BSP Linux package
cd $WORK_DIR 
unzip $SRC_DIR/RTK0EF0045Z0024AZJ-v3.0.5.zip
tar -xf ./RTK0EF0045Z0024AZJ-v3.0.5/rzv_vlp_v3.0.5.tar.gz

### Extract the 'RZV2L Graphics Library v1.1.0'
cd $WORK_DIR
unzip $SRC_DIR/RTK0EF0045Z13001ZJ-v1.2.0_EN.zip
tar -zxvf RTK0EF0045Z13001ZJ-v1.2.0_EN/meta-rz-features_graphics_v1.2.0.tar.gz

### Extract the 'RZV2L Video Codec Library v1.1.0' Zip file.
cd $WORK_DIR
unzip $SRC_DIR/RTK0EF0045Z15001ZJ-v1.2.0_EN.zip
tar zxvf RTK0EF0045Z15001ZJ-v1.2.0_EN/meta-rz-features_codec_v1.2.0.tar.gz

### Extract the DRP Support archive file 
### Extract the 'DRP-AI Driver Support' package file ( meta-rz-drpai.tar.gz) under the rzv2l_drpai-driver directory.
unzip $SRC_DIR/r11an0549ej0741-rzv2l-drpai-sp.zip -d drp
tar -xvf drp/rzv2l_drpai-driver/meta-rz-drpai.tar.gz

### Extract the ISP Support archive file 
### Extract the ISP Support Package ( meta-rz-simple-isp.tar.gz ).
cd $WORK_DIR
unzip $SRC_DIR/r11an0561ej0130-rzv2l-isp-sp.zip 
tar -zxvf r11an0561ej0130-rzv2l-isp-sp/meta-rz-simple-isp.tar.gz

### Extract the Multi-OS Package archive file
### Set up the Yocto Environment and copy a default configuration
cd $WORK_DIR
unzip $SRC_DIR/r01an6238ej0112-rzv2l-cm33-multi-os-pkg.zip
tar -zxvf r01an6238ej0112-rzv2l-cm33-multi-os-pkg/meta-rz-features_multi-os_v1.1.2.tar.gz

cd $WORK_DIR
TEMPLATECONF=${WORK_DIR}/meta-renesas/meta-rzv2l/docs/template/conf/ source poky/oe-init-build-env build

bitbake-layers add-layer ../meta-rz-features/meta-rz-graphics
bitbake-layers add-layer ../meta-rz-features/meta-rz-codecs
bitbake-layers add-layer ../meta-rz-features/meta-rz-drpai
bitbake-layers add-layer ../meta-rz-features/meta-rz-simple-isp
bitbake-layers add-layer ../meta-rz-features/meta-rz-multi-os

### Build
MACHINE=smarc-rzv2l bitbake core-image-weston
MACHINE=smarc-rzv2l bitbake core-image-weston -c populate_sdk

    👓 Verification

    After the above script is run there will be a new folder call meta-rz-features. This will include, among others sub-folders for the MALI GPU, Video Codec, DRP, and ISP.

     
meta-rz-features/
├── meta-rz-codecs
├── meta-rz-drpai
├── meta-rz-graphics
├── meta-rz-multi-os
├── meta-rz-simple-isp
└── Readme.md

    OSS_Package

    This archive contains many of the yocto pacakges used to build the RZ BSP. Between releases some of these packages may no longer be supported in the current Renesas VLP. By modifying the yocto local.conf configuration file to use the packages in this archive allows continued build support of the current released VLP. Add the following to the locat.conf file.

    DL_DIR = "Absolute Path to extracted oss_package"

    SD Card Prepare and Booting

    Info
    titleFactor Boot Loader Warning

    Please read section V2L Boot Loaders Warning about the factory boot loaders programmed into the EVK boards.

    Format and Load an SD Card

    • The evaluation boards can be booted from SD Cards. The SD card must be formatted and loaded using a Linux PC. A helpful script has been created (usb_sd_partition) that you can run on your Linux PC.
    • Insert your micro SD card into a USB-SD-Card reader and then plug into a Linux PC.
    • Use the commands below to download the formatting script and run. Please select your card and choose the default settings.
    $ wget https://raw.githubusercontent.com/renesas-rz/rzg2_bsp_scripts/master/usb_sd_partition/usb_sd_partition.sh
$ chmod +x usb_sd_partition.sh
$ ./usb_sd_partition.sh
    • Use the commands below to copy the files you build with the BSP to the SD card. Start in the base of your Yocto BSP.
    # Change to the Yocto output directory that contains the files
$ cd build/tmp/deploy/images/smarc-rzv2l

# Copy the Linux kernel and Device Tree to partition 1
$ sudo cp -v Image /media/$USER/RZ_FAT
$ sudo cp -v r9a07g054l2-smarc.dtb /media/$USER/RZ_FAT

# Copy and expand the Root File System to partition 2
$ sudo tar -xvf core-image-weston-smarc-rzv2l.tar.gz   -C /media/$USER/RZ_ext
    (or if NOT using graphics)
$ sudo tar -xvf core-image-minimal-smarc-rzv2l.tar.gz   -C /media/$USER/RZ_ext

# Make sure all files are finished writing before removing the USB card reader from the PC
$ sync
    • Safely remove your USB card reader by right clicking on the drive icon (either RZ_FAT or RZ_ext) in Ubuntu and selecting "Eject"

    Power the Board and Connect to the Serial Port

    • Supply power the board using the USB-C connection on the carrier board labeled "Power Input"
    • On the carrier board, press the red button in order to turn on power to the board. The green LED labeled "Carrier PWR On" will be lit when power is on.
    • Now that the board is powered, plug a USB micro cable into the carrier board to the USB connector labeled "SER 3 UART". Use a serial terminal program to interact as you board. With a Linux PC, we recommend using "putty" (connects to /dev/USB0), and with a Windows PC we recommend "TeraTerm" that connects to COMx. The baud rate of the Serial connection is 115200 bps.
    • Press the blue reset button, and then "u-boot" will start. Within 3 seconds, press the space bar on your keyboard in order to stop the auto-boot sequence.

    Switch settings for the CPU SOM board

    • The SOM board contains a eMMC Flash device and a Micro SD Card socket. On the SOM board, you can only use one or the other because they are both connected to the same peripheral channel on the RZ/V2L.
    • Set the switches on the SOM board to what you want to use.
    • ⚠️ u-boot environment variables are always stored in eMMC Flash (not SPI flash). This means if you change switch SW1-2 to OFF on the SOM board, you cannot access saved u-boot environments variables and you will always get the message "*** Warning - MMC init failed, using default environment"
    • Note that the SD Card slot on the Carrier board will always work regardless of the setting of SW1-2 because it uses a separate peripheral channel on the RZ/V2L.
    • On the SOM (CPU) board, there is a little switch (SW1) near the SD card socket.
    SOM board uses SD Card socket                 SOM board uses eMMC Flash (recommended)
SW1-1 = ON/OFF(JTAG)                          SW1-1 = ON/OFF(JTAG)
SW1-2 = ON                                    SW1-2 = OFF
      +-----+                                       +-----+
      | ON  |                                       | ON  |
      | = = |                                       | =   |
      |     |                                       |   = |
      | 1 2 |                                       | 1 2 |
      +-----+                                       +-----+
    Boot the Board
    Info
    titleCaution on default factory boot loaders

    Please see RZ/V2LBootLoadersWarning  about the factory programmed evaluation boards  

    Boot Option 1 (Recommended)

    HTML
    <font size=2><B>Boot using SD Card on Carrier Board (<font color=green>Recommended</font>)</B></font>
    • SOM Board:
      • eMMC Flash onboard is connected to SDHI channel 0
      • SD Card slot is disabled
    • Carrier Board:
      • SD Card slot is connected to SDHI channel 1   (contains kernel and file system)
    • Insert the SD card into the socket on Carrier Board.
    ┌─────┬─────┬─────┐
│     │ SOM │     │
│     └─────┘     │
│  Carrier Board  │
│     ┌─┐         │
└─────┴─┴─────────┘
       ↑
 SD Card Socket
    • Press the blue reset button, and then "u-boot" will start. Within 3 seconds, press the space bar on your keyboard in order to stop the auto-boot sequence.
    • At the u-boot prompt ( => ), enter the following commands to boot the board:

    RZ/V2L EVK Booting Commands:

       # Create command macros and save them:
=> setenv sd_boot1 'mmc dev 1 ; fatload mmc 1:1 0x48080000 Image ; fatload mmc 1:1 0x48000000 Image-r9a07g054l2-smarc.dtb'
=> setenv sd_boot2 'setenv bootargs 'root=/dev/mmcblk1p2 rootwait' ; booti 0x48080000 - 0x48000000'
=> setenv bootcmd 'run sd_boot1 sd_boot2'
=> saveenv

   # Reset the board and it will automatically boot

    Boot Option 2 (Advanced)

    HTML
    <font size=2><B>Boot using eMMC Flash on SOM Board (Advanced)</B></font>
    • SOM Board:
      • eMMC Flash onboard is connected to SDHI channel 0            (contains kernel and file system)
      • SD Card slot is disabled
    • Carrier Board:
      • SD Card is connected to SDHI channel 1
    • Set switch SW1-2 = OFF
    • The boot loader (u-boot) by default will try to boot from eMMC after 3 seconds.
    • Press the blue reset button and wait.

    Boot Option 3 (Advanced)

    HTML
    <font size=2><B>Boot using SD Card on SOM Board (Advanced)</B></font>
    • SOM Board:
      • eMMC Flash onboard is disabled
      • SD Card slot is connected to SDHI channel 0            (contains kernel and file system)
    • Carrier Board:
      • SD Card is connected to SDHI channel 1
    • Set switch SW1-2 = ON
    • Insert the SD card into the socket on SMARC SOM CPU board (not the carrier board).
    • Press the blue reset button, and then "u-boot" will start. Within 3 seconds, press the space bar on your keyboard in order to stop the auto-boot sequence.
    • Note that you will get this message every time "*** Warning - MMC init failed, using default environment" because u-boot environment variables are stored in eMMC Flash (that you disabled)
    • At the u-boot prompt ( => ), enter the following commands to boot the board:
      # Manually enter the following commands to boot
=> mmc dev 0 ; fatload mmc 0:1 0x48080000 Image ; fatload mmc 0:1 0x48000000 Image-r9a07g054l2-smarc.dtb
=> setenv bootargs 'root=/dev/mmcblk0p2 rootwait' ; booti 0x48080000 - 0x48000000

    Linux Login

    • The login will be "root" (no password is needed)

    RZV2L Cortex-M33 Multi-OS Package

    Instructions for RZV Cortex-M33 Multi-OS Package is located below.

    Cortex-M33 Multi-OS Package Support

    Supported MIPI Camera modules for RZ/V2L EVK

    Additional Supported Camera Modules are listed below:

    e-CAM20_CURZ is an AR0234-based Full HD Color Global Shutter Camera. It supports the UYVY image format and is provided with an M12 lens holder – which together make it compatible with Renesas ® RZ/V2L. Its key features make e-CAM20_CURZ a perfect fit for applications like AMR, smart shopping, smart traffic, etc. (Order number: e-CAM20_CURZ_1H01R2)

    e-CAM21_CURZ is a Full HD Ultra low light camera for Renesas ® RZ/V2L based on the Sony® STARVIS™ IMX462 sensor. It comes with superior NIR performance and is equipped with an inbuilt ISP and an M12 lens holder – making it ideal for applications like people counting, animal tracking, smart agriculture, etc. (Order Number: 2. e-CAM21_CURZ_1H01R2 )

    Enable eMMcC Flash

    The instructions to enable the RZV2L to boot from eMMC Flash at on the RZG2L Page here

    Program On-Board eMMC Flash

    The instructions to enable the RZV2L to load the Linux kernel, DTB, and Filesystem RZG2L Page here

    Fix CPUs 100% Busy at Startup

    Fix rngd bug that randomly keeps all CPUs busy after startup

    RZ MPUs (at least non-secure versions) do not have a hardware random number generation module (/dev/hwrng), but that's the default setting for the systemd rngd service.

    With that, rngd occupies the CPU resources to build up entropies during start-up.

    Randomly, this process does not end properly and slows down the entire system significantly.

    But if an available pseudorandom number generator is selected, rngd finishes properly always.

    The following modification is sufficient:

    Before you build the BSP, modify

    poky/meta/recipes-support/rng-tools/rng-tools/default

    from

       EXTRA_ARGS="-r /dev/hwrng"

    to

       EXTRA_ARGS="-r /dev/urandom -x jitter"

    However, normally you do not want to modify the original recipe but instead create a new one to override the old one.

    1. Create a new folder: mkdir - p meta-renesas/recipes-rzg2l/recipes-support/rng-tools
    2. Change dir: cd meta-renesas/recipes-rzg2l/recipes-support/rng-tools
    3. Create a new file in that folder: vi rng-tools_%.bbappend
    4. Edit the file just created and add these lines: FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:" SRC_URI += "file://default"(1)
    5. Create another folder: mkdir -p rng-tools
    6. Add a file vi default
    7. Add the new content into it: EXTRA_ARGS="-r /dev/urandom -x jitter"
    8. Rebuild the image with the new package: bitbake core-image-weston

    (1) Note that this is the new Yocto syntax. For older versions of Yocto you may need to replace : (colon) with _ (underscore): so FILESEXTRAPATHS_prepend.

    Alternatively, you can modify the

    /etc/default/rng-tools

    file in the current target rootfs accordingly.

    DRP-AI Driver Version 7.00

    This version to the DRP-AI Reserve Area has changed from 0x70000000 to 0x80000000, because of this older versions of the DRP-AI Implementation Source code will fail with the following errors.

    [ERROR] Failed to run DRPAI_ASSIGN : errno=22

    [ERROR] Failed to run load_data_to_mem : resnet50_cam/drp_desc.bin

    [ERROR] Failed to load DRPAI Data

    This is due to the generated DRP Translator files map to the older address. Please use the DRP Translator version 1.70 when generating the DRP files and use the latest sample code included in the DRP-AI package version 7.0.

    /master/usb_sd_partition/usb_sd_partition.sh
$ chmod +x usb_sd_partition.sh
$ ./usb_sd_partition.sh
    • Use the commands below to copy the files you build with the BSP to the SD card. Start in the base of your Yocto BSP.
    # Change to the Yocto output directory that contains the files
$ cd build/tmp/deploy/images/smarc-rzv2l

# Copy the Linux kernel and Device Tree to partition 1
$ sudo cp -v Image /media/$USER/RZ_FAT
$ sudo cp -v r9a07g054l2-smarc.dtb /media/$USER/RZ_FAT

# Copy and expand the Root File System to partition 2
$ sudo tar -xvf core-image-weston-smarc-rzv2l.tar.gz   -C /media/$USER/RZ_ext
    (or if NOT using graphics)
$ sudo tar -xvf core-image-minimal-smarc-rzv2l.tar.gz   -C /media/$USER/RZ_ext

# Make sure all files are finished writing before removing the USB card reader from the PC
$ sync
    • Safely remove your USB card reader by right clicking on the drive icon (either RZ_FAT or RZ_ext) in Ubuntu and selecting "Eject"

    Power the Board and Connect to the Serial Port

    • Supply power the board using the USB-C connection on the carrier board labeled "Power Input"
    • On the carrier board, press the red button in order to turn on power to the board. The green LED labeled "Carrier PWR On" will be lit when power is on.
    • Now that the board is powered, plug a USB micro cable into the carrier board to the USB connector labeled "SER 3 UART". Use a serial terminal program to interact as you board. With a Linux PC, we recommend using "putty" (connects to /dev/USB0), and with a Windows PC we recommend "TeraTerm" that connects to COMx. The baud rate of the Serial connection is 115200 bps.
    • Press the blue reset button, and then "u-boot" will start. Within 3 seconds, press the space bar on your keyboard in order to stop the auto-boot sequence.

    Switch settings for the CPU SOM board

    • The SOM board contains a eMMC Flash device and a Micro SD Card socket. On the SOM board, you can only use one or the other because they are both connected to the same peripheral channel on the RZ/V2L.
    • Set the switches on the SOM board to what you want to use.
    • ⚠️ u-boot environment variables are always stored in eMMC Flash (not SPI flash). This means if you change switch SW1-2 to OFF on the SOM board, you cannot access saved u-boot environments variables and you will always get the message "*** Warning - MMC init failed, using default environment"
    • Note that the SD Card slot on the Carrier board will always work regardless of the setting of SW1-2 because it uses a separate peripheral channel on the RZ/V2L.
    • On the SOM (CPU) board, there is a little switch (SW1) near the SD card socket.
    SOM board uses SD Card socket                 SOM board uses eMMC Flash (recommended)
SW1-1 = ON/OFF(JTAG)                          SW1-1 = ON/OFF(JTAG)
SW1-2 = ON                                    SW1-2 = OFF
      +-----+                                       +-----+
      | ON  |                                       | ON  |
      | = = |                                       | =   |
      |     |                                       |   = |
      | 1 2 |                                       | 1 2 |
      +-----+                                       +-----+


    Boot the Board

    Info
    titleCaution on default factory boot loaders

    Please see RZ/V2LBootLoadersWarning  about the factory programmed evaluation boards  

    Boot Option 1 (Recommended)

    HTML
    <font size=2><B>Boot using SD Card on Carrier Board (<font color=green>Recommended</font>)</B></font>
    • SOM Board:
      • eMMC Flash onboard is connected to SDHI channel 0
      • SD Card slot is disabled
    • Carrier Board:
      • SD Card slot is connected to SDHI channel 1   (contains kernel and file system)


    • Insert the SD card into the socket on Carrier Board.
    ┌─────┬─────┬─────┐
│     │ SOM │     │
│     └─────┘     │
│  Carrier Board  │
│     ┌─┐         │
└─────┴─┴─────────┘
       ↑
 SD Card Socket
    • Press the blue reset button, and then "u-boot" will start. Within 3 seconds, press the space bar on your keyboard in order to stop the auto-boot sequence.
    • At the u-boot prompt ( => ), enter the following commands to boot the board:

    RZ/V2L EVK Booting Commands:

       # Create command macros and save them:
=> setenv sd_boot1 'mmc dev 1 ; fatload mmc 1:1 0x48080000 Image ; fatload mmc 1:1 0x48000000 Image-r9a07g054l2-smarc.dtb'
=> setenv sd_boot2 'setenv bootargs 'root=/dev/mmcblk1p2 rootwait' ; booti 0x48080000 - 0x48000000'
=> setenv bootcmd 'run sd_boot1 sd_boot2'
=> saveenv

   # Reset the board and it will automatically boot

    Boot Option 2 (Advanced)

    HTML
    <font size=2><B>Boot using eMMC Flash on SOM Board (Advanced)</B></font>
    • SOM Board:
      • eMMC Flash onboard is connected to SDHI channel 0            (contains kernel and file system)
      • SD Card slot is disabled
    • Carrier Board:
      • SD Card is connected to SDHI channel 1


    • Set switch SW1-2 = OFF
    • The boot loader (u-boot) by default will try to boot from eMMC after 3 seconds.
    • Press the blue reset button and wait.

    Boot Option 3 (Advanced)

    HTML
    <font size=2><B>Boot using SD Card on SOM Board (Advanced)</B></font>
    • SOM Board:
      • eMMC Flash onboard is disabled
      • SD Card slot is connected to SDHI channel 0            (contains kernel and file system)
    • Carrier Board:
      • SD Card is connected to SDHI channel 1


    • Set switch SW1-2 = ON
    • Insert the SD card into the socket on SMARC SOM CPU board (not the carrier board).
    • Press the blue reset button, and then "u-boot" will start. Within 3 seconds, press the space bar on your keyboard in order to stop the auto-boot sequence.
    • Note that you will get this message every time "*** Warning - MMC init failed, using default environment" because u-boot environment variables are stored in eMMC Flash (that you disabled)
    • At the u-boot prompt ( => ), enter the following commands to boot the board:
      # Manually enter the following commands to boot
=> mmc dev 0 ; fatload mmc 0:1 0x48080000 Image ; fatload mmc 0:1 0x48000000 Image-r9a07g054l2-smarc.dtb
=> setenv bootargs 'root=/dev/mmcblk0p2 rootwait' ; booti 0x48080000 - 0x48000000

    Linux Login

    • The login will be "root" (no password is needed)

    RZV2L Cortex-M33 Multi-OS Package

    Instructions for RZV Cortex-M33 Multi-OS Package is located below.

    Cortex-M33 Multi-OS Package Support

    Supported MIPI Camera modules for RZ/V2L EVK

    Additional Supported Camera Modules are listed below:

    e-CAM20_CURZ is an AR0234-based Full HD Color Global Shutter Camera. It supports the UYVY image format and is provided with an M12 lens holder – which together make it compatible with Renesas ® RZ/V2L. Its key features make e-CAM20_CURZ a perfect fit for applications like AMR, smart shopping, smart traffic, etc. (Order number: e-CAM20_CURZ_1H01R2)

    e-CAM21_CURZ is a Full HD Ultra low light camera for Renesas ® RZ/V2L based on the Sony® STARVIS™ IMX462 sensor. It comes with superior NIR performance and is equipped with an inbuilt ISP and an M12 lens holder – making it ideal for applications like people counting, animal tracking, smart agriculture, etc. (Order Number: 2. e-CAM21_CURZ_1H01R2 )

    Enable eMMcC Flash

    The instructions to enable the RZV2L to boot from eMMC Flash at on the RZG2L Page here

    Program On-Board eMMC Flash

    The instructions to enable the RZV2L to load the Linux kernel, DTB, and Filesystem RZG2L Page here

    Fix CPUs 100% Busy at Startup

    Fix rngd bug that randomly keeps all CPUs busy after startup

    RZ MPUs (at least non-secure versions) do not have a hardware random number generation module (/dev/hwrng), but that's the default setting for the systemd rngd service.

    With that, rngd occupies the CPU resources to build up entropies during start-up.

    Randomly, this process does not end properly and slows down the entire system significantly.

    But if an available pseudorandom number generator is selected, rngd finishes properly always.

    The following modification is sufficient:

    Before you build the BSP, modify

    poky/meta/recipes-support/rng-tools/rng-tools/default

    from

       EXTRA_ARGS="-r /dev/hwrng"

    to

       EXTRA_ARGS="-r /dev/urandom -x jitter"

    However, normally you do not want to modify the original recipe but instead create a new one to override the old one.

    1. Create a new folder: mkdir - p meta-renesas/recipes-rzg2l/recipes-support/rng-tools
    2. Change dir: cd meta-renesas/recipes-rzg2l/recipes-support/rng-tools
    3. Create a new file in that folder: vi rng-tools_%.bbappend
    4. Edit the file just created and add these lines: FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:" SRC_URI += "file://default"(1)
    5. Create another folder: mkdir -p rng-tools
    6. Add a file vi default
    7. Add the new content into it: EXTRA_ARGS="-r /dev/urandom -x jitter"
    8. Rebuild the image with the new package: bitbake core-image-weston

    (1) Note that this is the new Yocto syntax. For older versions of Yocto you may need to replace : (colon) with _ (underscore): so FILESEXTRAPATHS_prepend.

    Alternatively, you can modify the

    /etc/default/rng-tools

    file in the current target rootfs accordingly.

    DRP-AI Driver Version 7.00

    This version to the DRP-AI Reserve Area has changed from 0x70000000 to 0x80000000, because of this older versions of the DRP-AI Implementation Source code will fail with the following errors.

    [ERROR] Failed to run DRPAI_ASSIGN : errno=22

    [ERROR] Failed to run load_data_to_mem : resnet50_cam/drp_desc.bin

    [ERROR] Failed to load DRPAI Data

    This is due to the generated DRP Translator files map to the older address. Please use the DRP Translator version 1.70 when generating the DRP files and use the latest sample code included in the DRP-AI package version 7.0.

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