Milk-V Duo开发板（图1）是一款基于CV1800B芯片（RISC-V架构，C906@1Ghz + C906@700MHz）的超紧凑型嵌入式开发平台。它支持64MB RAM，可通过扩展实现10/100Mbps以太网，可以运行Linux和RTOS系统，为专业人士、工业ODM、AIoT爱好者、DIY爱好者和创作者提供可靠、低成本、高性能的平台。硬件参数信息如下： - CVITEK CV1800B (C906@1Ghz + C906@700MHz) - 双RV64核心，最高1GHz - 64MB内存 - 通过可选的附加板提供10/100Mbps以太网 - 技术支持同时运行Linux和RTOS。
先做的是内核编译
在这里,需要用到 Mirco sd卡，准确的说是TF卡,TF卡比sd卡小,可通过一个转接器适配SD卡.
参考了以下网站
基于Ubuntu20.04详细的Duo编译环境搭建指南 - Duo - MilkV Community
若直接快速开始则烧录官网提供的以及编译好的镜像
Releases · milk-v/duo-manifest (github.com))
可参考
Boot the Duo Milk-V (milkv.io)s)
比如说通过这个balenaElcher软件烧录镜像，我遇到的问题校验失败，问了群里的佬是不需要管校验是否成功，但把SD卡插回DUO结果依然跑不起来.
我的解决方案:
在win11下格式化sd卡，选择NTFS文件系统。
用windows32Diskmanger成功烧录了镜像。
烧录失败的示例（这种情况下就和插上空卡一样)
:load param1 (-78)
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E:Boot failed (8).
E:ra=0x440a264
E:RESET:panic:-1
WD.C.SCS/0/0.WD.URPL.SDI/25000000/6000000.SNF.USBI.BS/EMMC.PS. E:load param1 (-78)
PS. E:load param1 (-78)
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E:Boot failed (8).
E:ra=0x440a264
E:RESET:panic:-1
WD.C.SCS/0/0.WD.URPL.SDI/25000000/6000000.SNF.USBI.BS/EMMC.PS. E:load param1 (-78)
PS. E:load param1 (-78)
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E:Boot failed (8).
E:ra=0x440a264
E:RESET:panic:-1
WD.C.SCS/0/0.WD.URPL.SDI/25000000/6000000.SNF.USBI.BS/EMMC.PS. E:load param1 (-78)
PS. E:load param1 (-78)
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E:Boot failed (8).
E:ra=0x440a264
E:RESET:panic:-1
WD.C.SCS/0/0.WD.URPL.SDI/25000000/6000000.SNF.USBI.BS/EMMC.PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
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:load param1 (-78)
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PS. E:load param1 (-78)
PS. E:load param1 (-78)
E:Boot failed (8).
E:ra=0x440a264
E:RESET:panic:-1
WD.C.SCS/0/0.WD.URPL.SDI/25000000/6000000.SNF.USBI.BS/EMMC.PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
E:Boot failed (8).
E:ra=0x440a264
E:RESET:panic:-1
WD.C.SCS/0/0.WD.URPL.SDI/25000000/6000000.SNF.USBI.BS/EMMC.PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
E:Boot failed (8).
E:ra=0x440a264
E:RESET:panic:-1
WD.C.SCS/0/0.WD.URPL.SDI/25000000/6000000.SNF.USBI.BS/EMMC.PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
E:Boot failed (8).
E:ra=0x440a264
E:RESET:panic:-1
WD.C.SCS/0/0.WD.URPL.SDI/25000000/6000000.SNF.USBI.BS/EMMC.PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
PS. E:load param1 (-78)
进入系统
串口进入
通过USB转TTL串口连接可以成功进入。波特率115200.引脚按宣传图上去配置即可。
SSH接入
这里就需要用到RNDIS了.
我之前还在想一块板子如果本身不提供WIFI，怎么可能会有局域网下的IP地址。
结果就是RNDIS.
什么是RNDIS:
RNDIS(Remote Network Driver Interface Specification)是微软定义的一种网络设备接口规范。它允许USB设备(如手机、平板电脑)使用USB数据线与主机(如PC)连接后,通过USB接口实现网络功能。RNDIS的主要作用是:1. 允许USB设备在连接到主机后,表现为一个标准的以太网适配器,并被分配网络地址。这使得USB设备可以像常规网络设备一样访问网络。2. 使USB设备的网络功能不依赖于特定的主机平台或操作系统。只要主机支持RNDIS协议,就可以实现与USB设备的网络互联。3. 简化USB设备的网络协议栈设计,只需要实现RNDIS协议即可支持多种主流操作系统。
有了IP地址于是可以SSH进行连接而不需要每次都需要USB转TTL插串口线。使得交互变得便捷。
参考官方文档上的:
Set up the working environment Milk-V (milkv.io)
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