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XuanTie - R920 Series
一 简介
1. 内核
暂无。
2.特点
暂无。
3.BSP支持情况
-
当前BSP支持下述内核：
r920 -
当前BSP默认设置的内核是r920，该架构支持[F] [D]扩展，可以通过menuconfig工具使能[F]扩展或者[F] [D] 扩展。
-
当使用其他内核架构时需要修改，rtconfig.py文件中的
MCPU字段。
4.运行QEMU
- BSP根目录下存在
qemu.bat脚本，生成可执行文件后可点击该脚本直接启动QEMU.
二 工具
- 编译器： https://www.xrvm.cn/community/download?id=4433353576298909696
- 模拟器： https://www.xrvm.cn/community/download?id=4397435198627713024
注：若上述链接中的编译器与模拟器不能使用，可以使用下述CDK中的编译器与模拟器
三 调试方法
下述调试方法以E906举例，本BSP操作方式一致，搭建完成RT-Thread开发环境，在BSP根目录使用env工具在当前目录打开env。
使用前执行一次menuconfig命令，更新rtconfig.h配置，然后在当前目录执行scons -j12命令编译生成可可执行文件。
生成可执行文件，可以直接在命令行启动qemu或者配置vscode脚本借助vscode强大的插件进行图形化调试，qemu的相关命令可以查看玄铁qemu的用户手册，下述是启动qemu的命令，在powershell或命令行可直接执行下述命令，注意qemu需要导出至环境变量或者使用绝对路径。
qemu-system-riscv64 -machine smartl -nographic -kernel rtthread.elf -cpu e906
下述是使用vscode调试的展示。
一起为RISC-V加油！