2022-11-10 22:22:48 +08:00
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# AARCH32 工作模式使用
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- 当开发者需要基于 Phytium 系列芯片进行开发时,可以从以下几个步骤出发配置芯片
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2023-05-11 10:25:21 +08:00
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## 1. 准备编译环境
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- 在 aarch32 目录下创建 tools 目录,后续用于存放 RT-Thread 编译工具链
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```sh
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cd ./aarch32
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mkdir tools
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```
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- 在 tools 目录下下载两个 python 脚本,get_toolchain.py 和 ci.py,下载完后给两个脚本添加执行权限
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2022-11-10 22:22:48 +08:00
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2023-05-11 10:25:21 +08:00
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```shell
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cd ./tools
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wget https://gitee.com/rtthread/ART-Pi-smart/raw/master/tools/get_toolchain.py
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wget https://gitee.com/rtthread/ART-Pi-smart/raw/master/tools/ci.py
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chmod +x get_toolchain.py ci.py
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```
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2022-11-10 22:22:48 +08:00
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2023-05-11 10:25:21 +08:00
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- 然后运行 get_toolchain.py 脚本,拉取 aarch32 交叉编译链`arm-linux-musleabi_for_x86_64-pc-linux-gnu`
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2022-11-10 22:22:48 +08:00
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```shell
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2023-05-11 10:25:21 +08:00
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python3 ./get_toolchain.py arm
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2022-11-10 22:22:48 +08:00
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```
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2023-05-11 10:25:21 +08:00
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> RT-Thread 5.0 后必须使用这个带 musl-libc 的编译链,不能使用`arm-none-eabi`
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- 在 aarch32 目录下下载脚本 smart-env.sh ,然后运行脚本生效环境变量
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```shell
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cd ./aarch32
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wget https://gitee.com/rtthread/ART-Pi-smart/raw/master/smart-env.sh
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source ./smart-env.sh arm
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```
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- 如下所示是 aarch32 编译相关的环境变量,运行 scons 前要确保环境变量设置正确
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![aarch32_env](./figures/aarch32_env.png)
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## 2. 如何选择芯片
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- 以 E2000Q RT-Smart为例,Linux 环境下,运行 make load_e2000q_rtsmart 加载默认的 rtconfig, 然后输入下列命令,进入 menuconfig 进一步配置,
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2022-11-10 22:22:48 +08:00
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```shell
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scons --menuconfig
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```
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开发者通过以下选择进行配置
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```
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Standalone Setting > Board Configuration > Chip
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```
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![](./figures/chip_select.png)
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![](./figures/phytium_cpu_select.png)
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2023-05-11 10:25:21 +08:00
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## 3. 如何选择驱动
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2022-11-10 22:22:48 +08:00
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```shell
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scons --menuconfig
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```
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开发者通过以下选项进行驱动的使能
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```
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Hardware Drivers > On-chip Peripheral Drivers
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```
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![](./figures/select_driver.png)
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2023-05-11 10:25:21 +08:00
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## 4. 开启SDK中内部调试信息
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```shell
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scons --menuconfig
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```
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开发者通过以下选项进行调试信息等级的设置
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![](./figures/select_debug_info.png)
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2023-05-11 10:25:21 +08:00
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## 4. 如何切换至RT-Thread Smart 工作模式
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```shell
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scons --menuconfig
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```
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![1682477587050](figures/1682477587050.png)
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2022-11-10 22:22:48 +08:00
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2023-05-11 10:25:21 +08:00
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开发者通过以上配置开启RT-Thread Smart 功能
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## 5. 编译程序
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```shell
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scons -c
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scons
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```
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- 完成编译之后目录下将会生成以下几个文件
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```
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rtthread_a32.bin
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rtthread_a32.elf
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rtthread_a32.map
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```
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2023-05-11 10:25:21 +08:00
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## 6. 启动镜像程序
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- 可以用串口通过 XMODEM 协议将 bin/elf 文件上传到开发板,然后启动,
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- 首先在 Phytium 开发板上输入,上传 bin 文件
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2022-11-10 22:22:48 +08:00
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2023-05-11 10:25:21 +08:00
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```
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loadx 80080000
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```
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![](./figures/ymodem_upload.png)
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- 加载 bin 文件完成后,输入下列命令启动
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```
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go 80080000
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```
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## 7. 打包导出工程源代码
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2022-11-10 22:22:48 +08:00
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- 指定工程名和路径,打包RT-Thread内核和Phytium BSP代码,可以导出一个工程工程
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2023-05-11 10:25:21 +08:00
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2022-11-10 22:22:48 +08:00
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```
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python ./export_project.py -n=phytium-a32 -o=D:/proj/rt-thread-e2000/phytium-a32
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```
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![](./figures/export_project.png)
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2023-05-11 10:25:21 +08:00
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- 进入打包工程的目录,修改工程根目录 Kconfig 中的路径 BSP_DIR 和 STANDALONE_DIR
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2022-11-10 22:22:48 +08:00
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> env 环境中的 menuconfig 不会调用 SConstruct 修改路径环境变量,因此需要手动修改路径
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```
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config BSP_DIR
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string
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option env="BSP_ROOT"
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default "."
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config STANDALONE_DIR
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string
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option env="STANDALONE_DIR"
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default "libraries/standalone"
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```
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- 输入 menuconfig 和 scons 完成编译
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2023-05-11 10:25:21 +08:00
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## 8. 将工程导入 RT-Studio
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2022-11-10 22:22:48 +08:00
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2023-05-11 10:25:21 +08:00
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- 在 RT-Studio 使用功能 `RT-Thread Bsp 到工作空间`,导入 5. 中导出的 BSP 工程
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2022-11-10 22:22:48 +08:00
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- 设置 BSP 工程的交叉编译链后进行后续开发
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2023-05-11 10:25:21 +08:00
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![](./figures/import_project.png)
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python get_toolchain.py arm
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./smart-env.bat
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