【XR806开发板试用】TCP通信测试 && Ping 命令测试
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1.工程准备
由于要使用wifi功能，直接从wlan_demo复制一份出来，然后修改。
源文件只留下 main.c 就可以了。BUILD.gn文件
import("//device/xradio/xr806/liteos_m/config.gni") static_library("app_mying") { configs = [] sources = [ "main.c", ] cflags = board_cflags include_dirs = board_include_dirs include_dirs += [ "//kernel/liteos_m/kernel/arch/include", "//utils/native/lite/include", "//foundation/communication/wifi_lite/interfaces/wifiservice", ] }2. XR806 SDK
仔细看下xr806工程库的结构，
xr806的xr_skylark路径下属于芯片原生驱动库！
该路径下面有各种功能参考示例，如trustzone、net、ping、json等。
因此，直接参考xr_skylark\include下的内容，来实现一些简单的功能。
3.实现的功能
0）连接WiFi;
根据自己的SSID和PSK修改，代码直接copy原来的。1）ping服务器，进行联通性测试;
ping一下自己的服务器，根据需要进行修改。include下面有ping/ping.h文件。很简单的一个结构体(如下所示)，看情况就是给个地址，设置一下参数，然后就可以实现ping命令的功能了。
struct ping_data { ip_addr_t sin_addr; /* server addr */ u32_t count; /* number of ping */ u32_t data_long; /* the ping packet data long */ u32_t interval; /* Wait interval seconds between sending each packet, default 1s */ u32_t timeout; /* Time to wait for a response, in seconds */ u32_t deadline; /* Specify a timeout, in seconds, ping thread will stop if timeout */ u32_t ttl; /* ttl ping only. Set the IP Time to Live. */ int run_flag; /* run flag, 0:stop 1:start */  }; s32_t ping(struct ping_data *data);2）作为TCP客户端，连接server，发数据;
通过TCP连接服务器，发数据。
设置服务器信息
【地址】（比如：192.168.1.100）
【端口号】（比如5679）
net路径下面有lwip库，借此实现网络通信功能。代码里，通过宏定义的方式，将lwip_xxx改成了与linux下的soket API一样的接口。
参考正常的TCP_Client程序就行了。
3）读取一下xr_skylark里的cjson版本信息。
发现有cjson库，然后就随便测试一下。4.程序示例
#include <stdio.h> #include <string.h> #include <stdlib.h> #include "ohos_init.h" #include "driver/chip/hal_gpio.h" #include "kernel/os/os.h" #include "wifi_device.h" #include "cjson/cJSON.h" #include "net/ping/ping.h" #include "net/lwip-2.1.2/lwip/sockets.h" #include "net/lwip-2.1.2/lwip/tcp.h" #include "net/lwip-2.1.2/lwip/inet.h" #include "net/lwip-2.1.2/lwip/ip_addr.h" #define WIFI_DEVICE_CONNECT_AP_SSID "ChinaNet-111" #define WIFI_DEVICE_CONNECT_AP_PSK "111666111" #define GPIO_OUTPUT_PORT GPIO_PORT_A static OS_Thread_t g_main_thread; static void gpio_output_init(void) { GPIO_InitParam param; param.driving = GPIO_DRIVING_LEVEL_1; param.mode = GPIOx_Pn_F1_OUTPUT; param.pull = GPIO_PULL_NONE; HAL_GPIO_Init(GPIO_OUTPUT_PORT, GPIO_PIN_21, ¶m);//led灯对应IO } static void gpio_output_ctl(uint8_t level) { HAL_GPIO_WritePin(GPIO_OUTPUT_PORT, GPIO_PIN_21, level ? GPIO_PIN_HIGH : GPIO_PIN_LOW); } void wifi_connect(void) { const char ssid_want_connect[] = WIFI_DEVICE_CONNECT_AP_SSID; const char psk[] = WIFI_DEVICE_CONNECT_AP_PSK; printf("\n=========== Connect Test Start ===========\n"); if (WIFI_SUCCESS != EnableWifi()) { printf("Error: EnableWifi fail.\n"); return; } printf("EnableWifi Success.\n"); if (WIFI_STA_ACTIVE == IsWifiActive()) printf("Wifi is active.\n"); OS_Sleep(1); if (WIFI_SUCCESS != Scan()) { printf("Error: Scan fail.\n"); return; } printf("Wifi Scan Success.\n"); OS_Sleep(1); WifiScanInfo scan_results[30]; unsigned int scan_num = 30; if (WIFI_SUCCESS != GetScanInfoList(scan_results, &scan_num)) { printf("Error: GetScanInfoList fail.\n"); return; } WifiDeviceConfig config = { 0 }; int netId = 0; int i; for (i = 0; i < scan_num; i++) { if (0 == strcmp(scan_results[i].ssid, ssid_want_connect)) { memcpy(config.ssid, scan_results[i].ssid, WIFI_MAX_SSID_LEN); memcpy(config.bssid, scan_results[i].bssid, WIFI_MAC_LEN); strcpy(config.preSharedKey, psk); config.securityType = scan_results[i].securityType; config.wapiPskType = WIFI_PSK_TYPE_ASCII; config.freq = scan_results[i].frequency; break; } } if (i >= scan_num) { printf("Error: No found ssid in scan_results\n"); return; } printf("GetScanInfoList Success.\n"); if (WIFI_SUCCESS != AddDeviceConfig(&config, &netId)) { printf("Error: AddDeviceConfig Fail\n"); return; } printf("AddDeviceConfig Success.\n"); if (WIFI_SUCCESS != ConnectTo(netId)) { printf("Error: ConnectTo Fail\n"); return; } printf("ConnectTo Success\n"); OS_Sleep(3); WifiLinkedInfo get_linked_res; if (WIFI_SUCCESS != GetLinkedInfo(&get_linked_res)) { printf("Error: GetLinkedInfo Fail\n"); return; } printf("GetLinkedInfo Success.\n"); printf("ssid: %s\n", get_linked_res.ssid); printf("bssid: "); for (int j = 0; j < WIFI_MAC_LEN; j++) { printf("%02X", get_linked_res.bssid[j]); } printf("\n"); printf("rssi: %d\n", get_linked_res.rssi); unsigned char get_mac_res[WIFI_MAC_LEN]; if (WIFI_SUCCESS != GetDeviceMacAddress(get_mac_res)) { printf("Error: GetDeviceMacAddress Fail\n"); return; } printf("GetDeviceMacAddress Success.\n"); for (int j = 0; j < WIFI_MAC_LEN - 1; j++) { printf("%02X:", get_mac_res[j]); } printf("%02X\n", get_mac_res[WIFI_MAC_LEN - 1]); } struct ping_data ping_t; //ping命令参数设置 void ping_init() { ip_addr_t server_ip; inet_aton("129.204.63.27", &server_ip); ping_t.sin_addr = server_ip; ping_t.count = 0xF; ping_t.data_long = 512; ping_t.timeout = 30; ping_t.run_flag = 1; } //TCP SOCKET int s; void tcp_test_init() { //socket create! s = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP); //address info! struct sockaddr_in server_addr; memset(&server_addr, 0, sizeof(server_addr)); server_addr.sin_family = AF_INET; server_addr.sin_port = htons(5679); inet_pton(AF_INET, "192.168.1.100", &server_addr.sin_addr); //connect! if(connect(s,(void *)&server_addr,sizeof(server_addr)) < 0) { printf("connect tcp_server failed! \r\n"); } else { printf("connect tcp_server successfuly! \r\n"); } // send data send(s, "xr806\n", 7, 0); } static void MainThread(void *arg) { gpio_output_init(); wifi_connect(); ping_init(); ping(&ping_t); tcp_test_init(); char buf[32]; int cnt = 0; while(1) { sprintf(buf,"XR806:%s : %d \r\n",cJSON_Version(), cnt++); //向服务器发送数据 send(s,buf, sizeof(buf), 0); printf("%s:Hello XR806 \r\n",__func__); gpio_output_ctl(1); OS_Sleep(1); gpio_output_ctl(0); OS_Sleep(1); } } void WifiTestMain(void) { printf("Wifi Test Start\r\n"); if (OS_ThreadCreate(&g_main_thread, "MainThread", MainThread, NULL, OS_THREAD_PRIO_APP, 4 * 1024) != OS_OK) { printf("[ERR] Create MainThread Failed\n"); } } SYS_RUN(WifiTestMain);5.结果展示
通过网络调试工具，建立TCP服务器，接收到了xr806发来的数据。
串口打印信息[net INF] netif (IPv4) is up [net INF] address: 192.168.1.110 [net INF] gateway: 192.168.1.1 [net INF] netmask: 255.255.255.0 [net INF] msg <network IPv6 state> GetLinkedInfo Success. ssid: ChinaNet-111 bssid: 5475956E3374 rssi: 110 GetDeviceMacAddress Success. 9C:9E:49:BA:5B:01 PING 129.204.63.27 520 bytes of data. Request timeout for icmp_seq=1 512 bytes from 129.204.63.27: icmp_seq=2 time=43 ms 512 bytes from 129.204.63.27: icmp_seq=3 time=43 ms 512 bytes from 129.204.63.27: icmp_seq=4 time=44 ms 512 bytes from 129.204.63.27: icmp_seq=5 time=43 ms 512 bytes from 129.204.63.27: icmp_seq=6 time=45 ms 512 bytes from 129.204.63.27: icmp_seq=7 time=46 ms 512 bytes from 129.204.63.27: icmp_seq=8 time=44 ms 512 bytes from 129.204.63.27: icmp_seq=9 time=44 ms 512 bytes from 129.204.63.27: icmp_seq=10 time=44 ms 512 bytes from 129.204.63.27: icmp_seq=11 time=44 ms 512 bytes from 129.204.63.27: icmp_seq=12 time=44 ms 512 bytes from 129.204.63.27: icmp_seq=13 time=44 ms 512 bytes from 129.204.63.27: icmp_seq=14 time=44 ms 512 bytes from 129.204.63.27: icmp_seq=15 time=43 ms --- 129.204.63.27 ping statistics --- 15 packets transmitted, 14 received, 6% packet loss, time 672ms rtt min/avg/max/mdev = 43/43/46/3 ms connect tcp_server successfuly! MainThread:Hello XR806 MainThread:Hello XR806文章转自极术社区：https://aijishu.com/a/1060000000286996
作者：Pingyang @Pingyang
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