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| Development Docs:https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-321/index.html | | Development Docs:https://docs.nvidia.com/jetson/archives/l4t-archived/l4t-321/index.html |
| | | |
− | ==== Setting Up the Environment ==== | + | ====Setting Up the Environment==== |
| | | |
| *Host PC which runs Ubuntu 18.04/16.04(64-bit). | | *Host PC which runs Ubuntu 18.04/16.04(64-bit). |
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| | | |
| ===Firmeware Upgrade=== | | ===Firmeware Upgrade=== |
− | <br /> | + | |
| + | ==== Prepare ==== |
| + | |
| + | *Cross-compiling Toolchain |
| + | |
| + | Please refer to [https://docs.nvidia.com/jetson/l4t/index.html#page/Tegra%2520Linux%2520Driver%2520Package%2520Development%2520Guide%2Fxavier_toolchain.html%23wwpID0ESHA this link] to install toolchain on your Host PC. |
| + | |
| + | *L4T source code and Rootfs |
| + | |
| + | You could use SDK Manager or [https://developer.nvidia.com/embedded/downloads directly download] to get source code. |
| + | |
| + | *Setting Up the Environment |
| + | |
| + | Assume SDK install directory is <TOPDIR>,source code is in $L4T_DIR/sources directory. |
| + | |
| + | <code>export TOP_DIR=<absolute path to top dir;in my case is /home/xumm/nvidia/nvidia_sdk/JetPack_4.2.2_Linux_GA_P3448/></code> |
| + | |
| + | <code>export L4T_DIR=$TOP_DIR/Linux_for_Tegra</code> |
| + | |
| + | <code>export LDK_ROOTFS_DIR=$TOP_DIR/Linux_for_Tegra/rootfs</code> |
| + | |
| + | <code>export ARCH=arm64</code> |
| + | |
| + | <code>export CROSS_COMPILE=aarch64-linux-gnu-</code> |
| + | |
| + | <code>export CROSS32CC=arm-linux-gnueabihf-gcc</code> |
| + | |
| + | <code>mkdir -p $L4T_DIR/sources/kernel/out_kernel</code> |
| + | |
| + | <code>export TEGRA_KERNEL_OUT=$L4T_DIR/sources/kernel/out_kernel</code> |
| + | |
| + | <code>export NVIDIA_PATH=$L4T_DIR/sources/kernel/nvidia</code> |
| + | |
| + | <code>export NANO_DTS_PATH=$L4T_DIR/sources/hardware/nvidia/platform/t210/porg/kernel-dts</code> |
| + | |
| + | *Build default image, prepare L4T environment |
| + | |
| + | <code>cd $L4T_DIR</code> |
| + | |
| + | <code>sudo ./apply_binaries.sh</code> |
| + | |
| + | *Download VEYE code for Jetson Nano |
| + | |
| + | <code>cd $L4T_DIR</code> |
| + | |
| + | <code>git clone https://github.com/veyeimaging/jetson_nano<nowiki/>.git</code> |
| + | |
| + | <code>export RELEASE_PACK_DIR=$L4T_DIR/jetson_nano</code> |
| ====Using the Prebuilt Binaries==== | | ====Using the Prebuilt Binaries==== |
| + | =====Installing the Kernel and DTS===== |
| + | <code>cd $RELEASE_PACK_DIR/binaries</code> |
| + | |
| + | <code>tar -xzvf Image.tar.gz</code> |
| + | |
| + | <code>sudo cp Image $L4T_DIR/kernel/ -f</code> |
| + | |
| + | <code>sudo cp $RELEASE_PACK_DIR/binaries/tegra210-p3448-0000-p3449-0000-a02.dtb $L4T_DIR/kernel/dtb/tegra210-p3448-0000-p3449-0000-a02.dtb -f</code> |
| + | |
| + | <code>cd $L4T_DIR</code> |
| ====Flashing the Jetson Nano Development Kit==== | | ====Flashing the Jetson Nano Development Kit==== |
| + | The steps to flash the Jetson Nano™ development kit are as follows: |
| + | |
| + | #Ensure a jumper is connected across J48 button header to enable DC power. |
| + | #Connect the micro USB cable to the Jetson Nano™ and host PC. |
| + | #Set the board to recovery mode, as mentioned in below steps: |
| + | |
| + | a. Power OFF the board. |
| + | |
| + | b. Connect the jumper pin to the pin 3 and pin 4 of the J40 button header. |
| + | |
| + | c. Power ON the Jetson Nano™ development kit. |
| + | |
| + | If the board is successfully changed to recovery mode, the Jetson Nano™development kit will be enumerated as an USB device to the host PC. |
| + | |
| + | Run the following command to verify whether the board is in recovery mode. |
| + | |
| + | <code>lsusb</code> |
| + | |
| + | The output message appears as shown below. |
| + | |
| + | <code>Bus 001 Device 102: ID 0955:7f21 NVidia Corp.</code> |
| + | |
| + | 4. Run the following commands to flash the Jetson Nano™ development kit from |
| + | |
| + | your host PC. |
| + | |
| + | <code>cd $L4T_DIR</code> |
| + | |
| + | <code>sudo ./flash.sh jetson-nano-qspi-sd mmcblk0p1</code> |
| + | |
| + | Note: Now, the entire micro SD on the Jetson Nano™ development kit will be erased. It will take about 10-30 minutes to complete depending on the host PC configuration. |
| + | |
| + | 5. Reboot and connect the Jetson Nano™ board to a monitor and keyboard to complete the OS configuration, once flashing is completed. |
| ====Building from Source==== | | ====Building from Source==== |
| + | =====Build kernel===== |
| + | |
| + | *patch code |
| + | |
| + | <code>cp $RELEASE_PACK_DIR/sources/kernel/veye327/* $NVIDIA_PATH/drivers/media/i2c/</code> |
| + | |
| + | <code>cp $RELEASE_PACK_DIR/sources/kernel/kernel_veye327_config $L4T_DIR/sources/kernel/kernel-4.9/arch/arm64/configs/tegra_veye327_defconfig</code> |
| + | |
| + | *build |
| + | |
| + | <code>cd $L4T_DIR/sources/kernel/kernel-4.9/</code> |
| + | |
| + | <code>make ARCH=arm64 O=$TEGRA_KERNEL_OUT tegra_veye327_defconfig</code> |
| + | |
| + | <code>make ARCH=arm64 O=$TEGRA_KERNEL_OUT Image -j4</code> |
| + | |
| + | Completed Image file is $TEGRA_KERNEL_OUT/arch/arm64/boot/Image,could be used for Flashing or Upgrading. |
| + | |
| + | Install Image for Flashing: |
| + | |
| + | <code>sudo cp $TEGRA_KERNEL_OUT/arch/arm64/boot/Image $L4T_DIR/kernel/ -f</code> |
| + | =====Build DTS===== |
| + | |
| + | *patch code |
| + | |
| + | <code>cp $RELEASE_PACK_DIR/sources/dts/kernel-dts/* $NANO_DTS_PATH/</code> |
| + | |
| + | <code>cp $RELEASE_PACK_DIR/sources/dts/kernel-dts/porg-platforms/* $NANO_DTS_PATH/porg-platforms/</code> |
| + | |
| + | <code>cp $RELEASE_PACK_DIR/sources/dts/kernel-dts/porg-plugin-manager/* $NANO_DTS_PATH/porg-plugin-manager/</code> |
| + | |
| + | *build |
| + | |
| + | <code>make ARCH=arm64 O=$TEGRA_KERNEL_OUT dtbs</code> |
| + | |
| + | <code>cp $TEGRA_KERNEL_OUT/arch/arm64/boot/dts/tegra210-p3448-0000-p3449-0000-a02.dtb $L4T_DIR/kernel/dtb/</code> |
| + | |
| + | Could be used for Flashing or Upgrading. |
| ====Upgrading Kernel Image and Supplements==== | | ====Upgrading Kernel Image and Supplements==== |
| + | First,you should copy '''Image''' file to Jetson nano somehow. Use a U disk for example. |
| | | |
| + | <code>sudo cp <path to your Image dir>/Image /boot/Image -f</code> |
| ====Upgrading DTB File by Flashing from Host PC==== | | ====Upgrading DTB File by Flashing from Host PC==== |
| + | Burning process reference 4.3, burning commands is as below: |
| + | |
| + | <code>cd $L4T_DIR</code> |
| + | |
| + | <code>sudo ./flash.sh -r -k DTB jetson-nano-qspi-sd mmcblk0p1</code> |
| | | |
| + | Power off after flashing finished. |
| ===Applications and Test=== | | ===Applications and Test=== |
| ====Video Stream Toolkits Manual==== | | ====Video Stream Toolkits Manual==== |
| ====Video Control Toolkits Manual==== | | ====Video Control Toolkits Manual==== |