winsock 编程(简单客户&服务端通信实现) 双向通信:Client send message to Server, and if Server receive the message, return a string "你好,客户端!我是服务器." 修改说明:If you want achieve the function that Server can also send message to Client, you only need to change the 7
在开发板的启动选项中看到如下两行: 7: Load Boot Loader code then write to Flash via Serial. 9: Load Boot Loader code then write to Flash via TFTP. 可以通过串口升级uboot.之前都是通过TFTP升级的,现在既然可以通过串口升级,就试着升一下吧,不然心里总觉得少了点什么. 在板子启动的时候,输入“7”来选择通过串口升级uboot,然后看到下面的输出: ## Ready for bina