用C语言写一个onenet NB开发板通信模块程序
时间: 2024-03-22 12:40:03 浏览: 14
可以参考以下代码实现onenet NB开发板通信模块程序:
```c
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "m5310.h"
#define BUF_SIZE 128
int main(int argc, char *argv[]) {
int ret;
char buf[BUF_SIZE];
nb_status_t status;
nb_sockaddr_t addr;
nb_sockaddr_t remote_addr;
nb_socklen_t addrlen;
nb_socket_t sockfd;
nb_size_t len;
// 初始化NB模块
ret = nb_init();
if (ret != NB_OK) {
printf("Error: failed to initialize NB module\n");
return -1;
}
// 注册onenet平台
ret = nb_onenet_register("your_onenet_device_id", "your_onenet_auth_info");
if (ret != NB_OK) {
printf("Error: failed to register on onenet platform\n");
nb_deinit();
return -1;
}
// 创建socket
sockfd = nb_socket(NB_AF_INET, NB_SOCK_DGRAM, NB_IPPROTO_UDP);
if (sockfd < 0) {
printf("Error: failed to create socket\n");
nb_onenet_deregister();
nb_deinit();
return -1;
}
// 绑定socket
memset(&addr, 0, sizeof(addr));
addr.sin_family = NB_AF_INET;
addr.sin_port = htons(8080);
addr.sin_addr.s_addr = NB_INADDR_ANY;
ret = nb_bind(sockfd, (nb_sockaddr_t *)&addr, sizeof(addr));
if (ret < 0) {
printf("Error: failed to bind socket\n");
nb_close(sockfd);
nb_onenet_deregister();
nb_deinit();
return -1;
}
// 接收数据并上传到onenet平台
while (1) {
addrlen = sizeof(remote_addr);
len = nb_recvfrom(sockfd, buf, BUF_SIZE, 0, (nb_sockaddr_t *)&remote_addr, &addrlen);
if (len < 0) {
printf("Error: failed to receive data\n");
break;
} else if (len == 0) {
printf("Warning: no data received\n");
continue;
}
buf[len] = '\0';
printf("Received data: %s\n", buf);
// 上传数据到onenet平台
ret = nb_onenet_send_data("your_onenet_stream_id", buf, len);
if (ret != NB_OK) {
printf("Error: failed to send data to onenet platform\n");
break;
}
}
// 关闭socket
nb_close(sockfd);
// 注销onenet平台
nb_onenet_deregister();
// 停止NB模块
nb_deinit();
return 0;
}
```
其中,`nb_init()`、`nb_onenet_register()`、`nb_onenet_deregister()` 和 `nb_deinit()` 分别用于初始化、注册onenet平台、注销onenet平台和停止NB模块。`nb_socket()`、`nb_bind()`、`nb_recvfrom()` 和 `nb_close()` 分别用于创建socket、绑定socket、接收数据和关闭socket。需要根据实际情况修改代码中的onenet设备ID和认证信息、数据流ID等参数。