https://harmonyos.51cto.com/#zz
非常惭愧由于前段时间太忙到最近才开始鼓捣Hi3861,首先感谢下乔帮主、连老师等大牛的优质输出,真乃大神种树后人乘凉啊。
简要记录一下搭建过程的注意事项和tcp client demo。
编译环境的搭建,在WIN10上,利用WSL,配合docker简直不要太爽。具体安装方式官方有详细步骤,这里不再赘述,docker环境可以参考docker无忧包安装,非常便捷。
编译环境和代码环境准备好后,用 python build.py wifiiot 就可执行代码编译。docker环境下非首次编译基本就几十秒就编完。
烧录环境需要注意的几个事项
一、hpm无法加载文件问题:
1. 以管理员身份运行vscode;
2. 执行:get-ExecutionPolicy,显示Restricted,表示状态是禁止的;
3. 执行:set-ExecutionPolicy RemoteSigned;
4. 这时再执行get-ExecutionPolicy,就显示RemoteSigned;
二、MODULE_NOT_FOUND问题:
更改bundle.json中的%UPLOAD_SCRIPT%
三、固件不存在问题:
修改配置中烧录文件路径和烧录方式
等到下面打印出现说明烧录完成
可以使用串口工具看下Hi3861的启动是否正常
在看到wifi init success打印后在串口使用AT指令测试连通性
到此,所有环境搭建验证完成。可以愉快的撸代码了。
接下来简单的用python在PC端搭建了一个tcp server,在Hi3861上搭建了tcp client,PC上通过socket发送指令给Hi3861,控制LED灯的亮灭。下面是简单的代码摘要。
- int tcp_client_demo(void)
- {
- /* 服务器的地址信息 */
- struct sockaddr_in server_addr;
- ssize_t ret;
- printf("%s %d \r\n", __FILE__, __LINE__);
- sleep(10);
- /* 1 、创建socket */
- if((sock_fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
- {
- printf("%s %d \r\n", __FILE__, __LINE__);
- perror("socket is error\r\n");
- exit(1);
- }
- /* 配置server端的IP和端口 */
- server_addr.sin_family = AF_INET;
- server_addr.sin_port = htons(50007);
- server_addr.sin_addr.s_addr = inet_addr("192.168.1.101");
- printf("%s %d \r\n", __FILE__, __LINE__);
- /* 连接 tcp server*/
- if(connect(sock_fd, (struct sockaddr *)&server_addr, sizeof(struct sockaddr)) == -1)
- {
- printf("%s %d \r\n", __FILE__, __LINE__);
- perror("connect is error\r\n");
- exit(1);
- }
- printf("%s %d \r\n", __FILE__, __LINE__);
- /* 接收循环 */
- while(1)
- {
- if((ret = recv(sock_fd, recvbuf, sizeof(recvbuf), 0)) == -1){
- printf("recv error \r\n");
- return -1;
- }
- printf("recv :\r\n");
- printf("%s", recvbuf);
- printf("\r\n");
- if(recvbuf[0] == '1')
- {
- /* Turn the LED ON. */
- g_ledState = LED_ON;
- printf("LED turned ON\n");
- sprintf(sendbuf, "LED turned ON");
- }
- else if(recvbuf[0] == '0')
- {
- /* Turn the LED OFF. */
- g_ledState = LED_OFF;
- printf("LED turned OFF\n");
- sprintf(sendbuf, "LED turned OFF");
- }
- else
- {
- printf("Invalid command\n");
- sprintf(sendbuf, "Invalid command");
- }
- if((ret = send(sock_fd, sendbuf, strlen(sendbuf) + 1, 0)) == -1)
- {
- perror("send : ");
- }
- sleep(2);
- }
- close(sock_fd);
- return 0;
- }
下面是python server的相关代码摘要。
- def echo_server(host, port):
- print("==========================")
- print("TCP Server")
- print("==========================")
- s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
- s.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
- try:
- s.bind((host, port))
- s.listen(1)
- except socket.error as msg:
- print("ERROR: ", msg)
- s.close()
- s = None
- if s is None:
- sys.exit(1)
- while 1:
- print("Listening on: %s:%d"%(host, port))
- data_len = 0
- try:
- conn, addr = s.accept()
- except KeyboardInterrupt:
- print("Closing Connection")
- s.close()
- s = None
- sys.exit(1)
- print('Incoming connection accepted: ', addr)
- try:
- while 1:
- data = input("Enter your option: '1' to turn ON LED, '0' to trun OFF LED and Press the 'Enter' key: ")
- conn.send(data.encode())
- data = conn.recv(4096)
- if not data: break
- print("Acknowledgement from TCP Client:", data.decode('utf-8'))
- print("")
- except KeyboardInterrupt:
- print("Closing Connection")
- s.close()
- s = None
- sys.exit(1)
- conn.close()
最终实现的效果如下:
相关代码已经打包上传,希望接下来能继续用鸿蒙做出一些有趣的事情!
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