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[中文](README.md) | **English**
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## Overview
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-CV180ZB/CV1800B/CV1801B are high-performance, low-power chips designed for consumer surveillance IP cameras, smart home devices, and other product areas. They integrate H.264/H.265 video compression encoders and ISPs, and support various image enhancement and correction algorithms such as digital wide dynamic range, 3D noise reduction, defogging, and lens distortion correction, providing professional-grade video image quality to customers.
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+The CV18xx series of chips are high-performance, low-power chips launched for various products in the field of civilian consumer surveillance IP cameras, smart homes, and more. These chips integrate H.264/H.265 video compression encoders, as well as ISP; they support various image enhancement and correction algorithms such as digital wide dynamic range, 3D noise reduction, defogging, and lens distortion correction, providing customers with professional-level video image quality.
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1. Processor Core
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-- Main processor: RISCV C906 @ 1.0Ghz
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+- Main Processor: RISC-V C906 @ 1.0Ghz
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- 32KB I-cache, 64KB D-Cache
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- - Integrated vector and floating-point units (FPU).
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-- Coprocessor: RISCV C906 @ 700Mhz
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- - Integrated floating-point unit (FPU).
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+ - Integrated Vector and Floating-Point Unit (FPU).
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+- Co-processor: RISC-V C906 @ 700Mhz
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+ - Integrated Floating-Point Unit (FPU)
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-2. Memory Interface
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-- Built-in DRAM: DDR2 16bitx1, with a maximum speed of 1333Mbps, capacity of 512Mbit (64MB).
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+2. Storage Interface
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+- Built-in DRAM: DDR2 16bitx1, with a maximum speed of 1333Mbps, and a capacity of 512Mbit (64MB)
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- Support for SPI NOR flash interface (1.8V / 3.0V)
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- - Support for 1, 2, 4-wire modes
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- - Maximum support of 256MBytes
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+ - Supports 1, 2, 4 line modes
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+ - Maximum support of 256MByte
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- Support for SPI Nand flash interface (1.8V / 3.0V)
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- - Support for 1KB/2KB/4KB page (corresponding to a maximum capacity of 16GB/32GB/64GB)
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- - Use the built-in ECC module of the device itself
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+ - Supports 1KB/2KB/4KB page (corresponding to maximum capacity of 16GB/32GB/64GB)
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+ - Utilizes the device's built-in ECC module
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3. Peripherals
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-- Up to 26 GPIO pins on the MilkV-Duo 40-pin header provide access to internal peripherals such as SDIO, I2C, PWM, SPI, J-TAG, and UART.
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+- Up to 26 GPIO pins on the MilkV-Duo 40-pin header provide access to internal peripherals such as SDIO, I2C, PWM, SPI, J-TAG, and UART
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- Up to 3x I2C
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- Up to 5x UART
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- Up to 1x SDIO1
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@@ -29,58 +29,75 @@ CV180ZB/CV1800B/CV1801B are high-performance, low-power chips designed for consu
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- Up to 7x PWM
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- Up to 1x RUN
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- Up to 1x JTAG
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-- Integrated MAC PHY supporting 10/100Mbps full-duplex or half-duplex mode
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-- One USB Host / device interface
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+- Integrated MAC PHY supports 10/100Mbps full or half duplex mode
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+- One USB host/device interface
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## Toolchain Download
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-Download the `riscv64-unknown-linux-musl-gcc` toolchain from: [https://github.com/RT-Thread/toolchains-ci/releases/download/v1.7/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu_latest.tar.bz2](https://github.com/RT-Thread/toolchains-ci/releases/download/v1.7/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu_latest.tar.bz2)
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+1. RT-Thread Standard Edition Toolchain: `riscv64-unknown-elf-gcc` Download Link [https://occ-oss-prod.oss-cn-hangzhou.aliyuncs.com/resource//1705395512373/Xuantie-900-gcc-elf-newlib-x86_64-V2.8.1-20240115.tar.gz](https://occ-oss-prod.oss-cn-hangzhou.aliyuncs.com/resource//1705395512373/Xuantie-900-gcc-elf-newlib-x86_64-V2.8.1-20240115.tar.gz)
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+
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+2. RT-Smart Edition Toolchain: `riscv64-unknown-linux-musl-gcc` Download Link [https://github.com/RT-Thread/toolchains-ci/releases/download/v1.7/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu_latest.tar.bz2](https://github.com/RT-Thread/toolchains-ci/releases/download/v1.7/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu_latest.tar.bz2)
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> Note:
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-The current BSP only supports Linux compilation.
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+The current bsp only supports Linux compilation, and it is recommended to use Ubuntu 22.04
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-After correct extraction, add the local path of the `riscv64-unknown-linux-musl-gcc` toolchain to `EXEC_PATH` in `rtconfig.py`, or specify the path through the `RTT_EXEC_PATH` environment variable.
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+After correctly extracting, add the local path of the `riscv64-unknown-elf-gcc` or `riscv64-unknown-linux-musl-gcc` toolchain to `EXEC_PATH` in `rtconfig.py` or specify the path through the `RTT_EXEC_PATH` environment variable.
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```shell
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+# For RT-Thread Standard Edition, use the following configuration:
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+$ export RTT_CC_PREFIX=riscv64-unknown-elf-
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+$ export RTT_EXEC_PATH=/opt/Xuantie-900-gcc-elf-newlib-x86_64-V2.8.1/bin
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+
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+# For RT-Smart Edition, use the following configuration:
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+$ export RTT_CC_PREFIX=riscv64-unknown-linux-musl-
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$ export RTT_EXEC_PATH=/opt/riscv64-linux-musleabi_for_x86_64-pc-linux-gnu/bin
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```
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## Compilation
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-1. Installing Dependencies
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+
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+### Dependency Installation
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```shell
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-$ sudo apt install -y device-tree-compiler
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+$ sudo apt install -y scons libncurses5-dev device-tree-compiler
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```
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-On the Linux platform, you can execute:
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+## Modify Current Project Configuration
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+
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+For the Linux platform, execute:
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```shell
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$ scons --menuconfig
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```
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-Select the type of target board that you want to compile:
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+1. By default, compile as RT-Thread Standard Edition. If you need to compile as RT-Smart Edition, modify as follows:
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+```shell
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+RT-Thread Kernel --->
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+ [*] Enable RT-Thread Smart (microkernel on kernel/userland)
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+
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+ (0x80000000) The virtual address of kernel start
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+```
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+
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+2. Select the current target development board type:
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```shell
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Board Type (milkv-duo) --->
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( ) milkv-duo
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(X) milkv-duo256m
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```
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-It will automatically download environment-related scripts to the ~/.env directory, and then execute
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+It will automatically download relevant scripts to the ~/.env directory, then execute:
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```shell
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$ source ~/.env/env.sh
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$ pkgs --update
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```
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+After updating the software package, execute `scons -j10` or `scons -j10 --verbose` to compile this board support package. If the compilation is successful, an rtthread.elf file will be generated.
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-After updating the software packages, use `scons -j10` or `scons -j10 --verbose` to compile this board support package. Alternatively, you can use the command `scons --exec-path="GCC_toolchain_path"` to specify the toolchain location for compilation. If the compilation is successful, an rtthread.elf file will be generated.
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-
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-After the compilation is completed, the script automatically calls the `./mksdimg.sh` script to package and generate the `boot.sd` file, which is the kernel file for SD card boot.
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+After the compilation is complete, the script automatically calls the `./mksdimg.sh` script to package and generate `boot.sd`, which is the kernel file for SD card startup.
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## Running
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-1. Divide the SD card into 2 partitions, with the first partition used to store bin files and the second partition used as a data storage partition. The partition format is FAT32.
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-
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-2. Copy the `fip.bin` and `boot.sd` files from the root directory to the first partition of the SD card. For subsequent firmware updates, you only need to copy the `boot.sd` file.
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+1. Divide the SD card into 2 partitions, with the first partition used to store bin files, and the second partition used as a data storage partition, with `FAT32` format.
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+2. Copy the `fip.bin` and `boot.sd` files from the root directory to the first partition of the SD card. Subsequent firmware updates only require copying the `boot.sd` file.
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Where:
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-- fip.bin: the bin file after fsbl、opensbi and U-Boot are packaged
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-- boot.sd: the bin file after the kernel is packaged
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+- fip.bin: fsbl, opensbi, and uboot packaged bin file
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+- boot.sd: kernel packaged bin file
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-After updating `boot.sd`, power on again and you will see the serial output information:
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+After updating `boot.sd`, restart to see the serial port output:
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```shell
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U-Boot 2021.10 (Jun 26 2023 - 14:09:06 +0800)cvitek_cv180x
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@@ -92,10 +109,10 @@ Loading Environment from <NULL>... OK
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In: serial
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Out: serial
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Err: serial
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-Net:
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+Net:
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Warning: ethernet@4070000 (eth0) using random MAC address - 62:80:19:6c:d4:64
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eth0: ethernet@4070000
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-Hit any key to stop autoboot: 0
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+Hit any key to stop autoboot: 0
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Boot from SD ...
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switch to partitions #0, OK
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mmc0 is current device
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@@ -118,21 +135,9 @@ Starting kernel ...
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heap: [0x802766b0 - 0x812766b0]
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\ | /
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-- RT - Thread Smart Operating System
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- / | \ 5.0.1 build Jun 28 2023 23:44:36
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- 2006 - 2022 Copyright by RT-Thread team
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-Hello RT-Smart!
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+- RT - Thread Operating System
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+ / | \ 5.1.0 build Apr 7 2024 23:33:20
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+ 2006 - 2024 Copyright by RT-Thread team
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+Hello RISC-V!
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msh />
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-```
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-## Driver Support List
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-
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-| Driver | Support Status | Remarks |
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-| :----- | :------------- | :--------------------- |
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-| UART | Supported | Default baud rate 115200 |
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-
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-## Supported Development Boards
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-- milk-v duo: [https://milkv.io/duo](https://milkv.io/duo)
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-
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-## Contact information
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-
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-Maintenance person：[flyingcys](https://github.com/flyingcys)
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+```
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flyingcys