Software Package of C3V-W Dual (LPDDR4) EVB

Owned by yang.luo
Last updated: Nov 21, 2024 by Wells Lu
3 min read

1. Structure

image-20240603-081950.png

2. Resource

To support the use of dual NPUs, it is necessary to prepare the system environment and runtime environment of the C3V-W Dual EVB. Currently, two parts of the compressed packages are available:

  • system environment：

  • SDK libraries： and

2.1. System Environment

The system environment provides compressed packages：master_dual_npu_support.tar.gz. Which is contains two patch files. This patch is based on the following version:

GitHub - sunplus-plus1/Q654

  • linux/kernel
    commit f85ca635311c4fdff741ffe7ef87f8a1243144a7 (master)

  • boot/xboot
    commit f2f03a8ba9bcfb1b0c1efd4f6e351b8c50641224 (origin/v1.0, master)

Please apply patch modifications based on this version.

The two patch files are xboot and Linux:

  • master_dual_npu_linux.patch: The Linux patch file. The path is as follows: "Q654\linux\kernel".

  • master_dual_npu_xboot.patch: the xboot folder patch file. The path is as follows: "Q654\boot\xboot".

2.2. SDK Libraries

The SDK Libraries have been included in the compressed files:

  • galcore_sdk0.tar.gz：the galcore SDK library for NPU master: /dev/galcore

  • galcore_sdk1.tar.gz：the galcore SDK library for NPU slave: /dev/galcore1

When running the app, it is necessary to specify the link library path: LD_LIBRARY_PATH

3. Environment Preparation

3.1 System

Please patch file modifications into the Xboot and Linux codes, and Compile the working environments for the master and slave separately. Reburn master and slave ISP_SD_BOOOT.img to micro SD card.

  • Execute the following command in the master Linux system:

cat /sys/kernel/debug/clk/clk_summary | grep "NPU_SLAVE"

When you see the following results, it indicates that the modifications to the Master kernel have taken effect.

NPU_SLAVE 0 0 0 500000000 0 0 50000

  • Please confirm that the Slave serial port prints the following log, which indicates that Slave CPU has been initialized

---- CPIO-R slave mode Begin ---- VCO: 4.0G, PLL: 1.0G PHY status change: 0x08000001 PHY status check Passed CPIO Initial Finished PHY Mode: 0x0000008D Timer start: 0x00000000 Timer End: 0x00000009 gic init ...

3.2 NPU Modules Compile

NPU Version choice v6.4.15.9. Compile master/slave modules

image-20240603-072428.png

Compile Master NPU and Slave NPU separately once. After compilation, it can be done to generate two module files under the path of Linux/kernel/drivers/media/platform/deploy/vip9000/:

galcore0.ko：master NPU module；

galcore1.ko：slave NPU module；

3.3 Insmod Modules

Install the model using the following parameters:

Please change the permissions of the device node:

After successful installation, you can see it in the device list /dev/galcore and /dev/galcore1.

3.4. Run Process

Executing the required processes in the script is recommended. Different SDK paths can be specified in the script file.

  • master_npu_process.sh

  • slave_npu_process.sh

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