Duo cv1800b first time 搭建C编译及远程gdb环境

Duo
1

环境搭建

  1. apt安装必要组件

    sudo apt install dialog python3-dev make git bc gcc flex bison ninja-build libssl-dev rsync pkg-config device-tree-compiler squashfs-tools parted dosfstools

  2. 下载高版本的cmake

  3. 拉repo

    • 注意github一定要加了公钥；如果是新建的ubuntu系统，需要ssh-keygen命令生成公钥提交到自己的github账号，否则后期会出现权限问题。
    • 创建一个路径保存repo，从清华源拉repo
    mkdir <path_to_repo>/duo-manifest
curl https://mirrors.tuna.tsinghua.edu.cn/git/git-repo -o repo
    • 赋予权限
    chmod a+rx repo

  4. 拉sdk

    • 创建并进入新目录
    • export上面的repo地址（养成良好习惯，拒绝往bashrc和PATH加垃圾）
    export PATH="<path_to_repo>/duo-manifest:${PATH}"
    • 指向清华源
    export REPO_URL='https://mirrors.tuna.tsinghua.edu.cn/git/git-repo/'
    • 拉sdk
    repo init -u git@github.com:milk-v/duo-manifest.git -b main -m milk-v_duo_cv180xb_sdk.xml
repo sync

  5. 编译

    • 指定cmake
    export PATH="<path_to_cmake>/cmake-3.19.3-Linux-x86_64/bin:${PATH}"
    • 编译
    source build/cvisetup.sh
defconfig cv1800b_sophpi_duo_sd
build_all
pack_sd_image

  6. 烧录

    sudo dd if=./install/soc_cv1800b_sophpi_duo_sd/sophpi-duo-<**>.img of=/dev/sda bs=32M status=progress oflag=direct

  7. 连上uart接口

    • 3960×1714 446 KB
    • 如图左下角倒数第四针开始，波特率115200
    • 如果出现乱码，则使用120000可以看到bl输出，通常是启动失败

探索

  • 为了使用GADGET，在编译之前修改了配置：

    CONFIG_USB_OSDRV_CVITEK_GADGET=y

    但是似乎没有生效。

    [root@cvitek]~# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 0E:43:45:E2:0F:6E  
		UP BROADCAST MULTICAST  MTU:1500  Metric:1
		RX packets:0 errors:0 dropped:0 overruns:0 frame:0
		TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
		collisions:0 txqueuelen:1000 
		RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
		Interrupt:19 

lo        Link encap:Local Loopback  
		inet addr:127.0.0.1  Mask:255.0.0.0
		UP LOOPBACK RUNNING  MTU:65536  Metric:1
		RX packets:0 errors:0 dropped:0 overruns:0 frame:0
		TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
		collisions:0 txqueuelen:1000 
		RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

    202305版固件已经支持RADIS，不知道是不是最新版本的代码配置还没提交到仓库

    usb0      Link encap:Ethernet  HWaddr 62:56:94:45:C3:29  
		inet addr:192.168.42.1  Bcast:192.168.42.255  Mask:255.255.255.0
		UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
		RX packets:35 errors:0 dropped:16 overruns:0 frame:0
		TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
		collisions:0 txqueuelen:1000 
		RX bytes:6450 (6.2 KiB)  TX bytes:1608 (1.5 KiB)

  • spi设备也没有挂载：

    [root@cvitek]~# ls /dev/
bus             cvi_vc_dec4     full            null
console         cvi_vc_dec5     gpiochip0       ptmx
cvi-base        cvi_vc_dec6     gpiochip1       pts
cvi-dwa         cvi_vc_dec7     gpiochip2       random
cvi-fast-image  cvi_vc_dec8     gpiochip3       rfkill
cvi-mipi-rx     cvi_vc_enc0     gpiochip4       root
cvi-rgn         cvi_vc_enc1     hwrng           shm
cvi-rtos-cmdqu  cvi_vc_enc2     i2c-0           snd
cvi-sys         cvi_vc_enc3     i2c-1           tty
cvi-tpu0        cvi_vc_enc4     i2c-2           ttyS0
cvi-vi          cvi_vc_enc5     ion             ttyS1
cvi-vpss        cvi_vc_enc6     kmsg            ttyS2
cvi_vc_dec0     cvi_vc_enc7     mem             ttyS3
cvi_vc_dec1     cvi_vc_enc8     mmcblk0         ttyS4
cvi_vc_dec2     cvitekaadc      mmcblk0p1       urandom
cvi_vc_dec3     cvitekadac      mmcblk0p2       zero

    看设备树已经有一个spi设备使能了

    &spi3 {
	status = "okay";
	num-cs = <1>;
	spidev@0 {
		compatible = "rohm,dh2228fv";
		spi-max-frequency = <1000000>;
		reg = <0>;
	};
};

program

  • 鉴于自己编译的系统没有radis，所以使用官方release镜像；在ubuntu 20 系统下免驱直接虚拟出网卡，pc可以看到属于192.168.42.x网段，串口从上面已经看到开发板ip为192.168.42.1

  • ssh 连接

  • gdbserver

    • 找到sdk里面的gdbserver
    find -name gdbserver
    • 用scp下载进去
    scp ./ramdisk/rootfs/public/gdbserver/riscv_musl/usr/bin/gdbserver root@192.168.42.1:~/

  • 编译

    • riscv64-elf 编译链，这个编译链编译出来的程序可以直接运行，系统库可能是用这个编译的？但debug的时候一旦触发断点之后就无法继续运行了。
    <path_to_sdk>/duo-src/host-tools/gcc/riscv64-elf-x86_64/bin/riscv64-unknown-elf-gcc -o main main.c -g
    • 还有两个编译链：riscv64-linux-x86_64 riscv64-linux-musl-x86_64 但动态链接编译出来的程序都无法直接运行，因此选择静态编译，不过debug可以正常步进
    <path_to_sdk>/duo-src/host-tools/gcc/riscv64-elf-x86_64/bin/riscv64-unknown-elf-gcc -o main main.c -g -static
    • 下载程序
    scp main root@192.168.42.1:~/

  • 运行

    - ./main

  • 调试

    - ./gdbserver :1234 main

  • vscode 中加入：

    {
	"name": "(gdb) 启动",
	"type": "cppdbg",
	"request": "launch",
	"program": "${workspaceRoot}/main",
	"args": [],
	"stopAtEntry": false,
	"miDebuggerServerAddress": "192.168.42.1:1234",//目标板的ip地址和端口
	"cwd": "${workspaceRoot}",
	"environment": [],
	"externalConsole": false,
	"MIMode": "gdb",
	// "miDebuggerPath":"<path_to_sdk>/duo-src/host-tools/gcc/riscv64-elf-x86_64/bin/riscv64-unknown-elf-gdb",
	"miDebuggerPath":"<path_to_sdk>/duo-src/host-tools/gcc/riscv64-linux-x86_64/bin/riscv64-unknown-linux-gnu-gdb",
	"setupCommands": [
		{
			"description": "为 gdb 启用整齐打印",
			"text": "-enable-pretty-printing",
			"ignoreFailures": true
		},
		{
			"description": "将反汇编风格设置为 Intel",
			"text": "-gdb-set disassembly-flavor intel",
			"ignoreFailures": true
		}
	]
}
    • 点击F5调试
    • 效果

    1684905972465
    16849059724651808×1072 85.6 KB

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