鸿蒙设备开发——Neptune w800 网络编程——按键控制WIFI连接状态
目录1.梗概与基础知识2.主要依赖3.主要函数解析3.1变参宏---日志打印3.2 PrintLinkedInfo()打印连到的接AP信息3.3 SecurityTypeName()返回AP加密方式(安全类型)3.4 FormatMacAddress() Mac地址格式化3.5 PrintScanResult() 打印热点扫描结果3.6 OnWifiConnectionChanged() 连接状态
1.梗概与基础知识
功能说明:Neptune w800作为接入设备(STA)连接wifi(AP),用开发板上的按键(PB9)来控制WIFI的连接与断开。
知识点:
AP(Access point):
也就是无线接入点,是一个无线网络的创建者,是网络的中心节点。一般家庭或办公室使用的无线路由器就一个AP。STA(Station)站点:
每一个连接到无线网络中的终端(如笔记本电脑、PDA及其它可以联网的用户设备)都可称为一个站点。SSID(Service Set Identifier):
每个无线AP都应该有一个标示用于识别,SSID就是这个用于识别的的名字,也就是我们经常说到的wifi名。BSSID(Basic Service Set):
每一个网络设备都有其用于识别的物理地址,即MAC地址,48位,也是设备识别的标识符。对于STA的设备来说,拿到AP接入点的MAC地址就是这个BSSID。RSSI(Received Signal Strength Indicator):
通过STA扫描到AP站点的信号强度。
只是简要的说了下主要的知识点(并不全面),不然理解下面的代码会有障碍,多学学计算机网络,还有很多有趣的知识。
2.主要依赖
wifi设置相关的函数定义在wifi_device.c
文件中,包括wifi连接、断开、扫描等功能,该文件的位置在device/hisilicon/hispark_pegasus/hi3861_adapter/hals/communication/wifi_lite/wifiservice/source/wifi_device.c
,感兴趣的可以打开研究,我们使用他的头文件就行了。
而关于Neptune开发版的引脚定义、操作设备的API分别在iot_gpio_w800.h
和iot_gpio_neptune.h
中,如下:
#include "wifi_device.h" //Provides functions for the Wi-Fi station and hotspot modes.即wif连接、断开、参数配置等功能
#include "lwip/netifapi.h"
// #include "lwip/api_shell.h"
#include "iot_gpio_w800.h" //定义了w800引脚,例:IOT_GPIO_PA_00 为PA0
#include "iot_gpio_neptune.h" //提供了操作设备的API:flash, GPIO, I2C, PWM, UART, and watchdog APIs.可进入查看函数简介、参数、返回等信息
3.主要函数解析
3.1变参宏—日志打印
#define LOG_TAG "Wifista: " //日志标签
#define LOGI(fmt, ...) printf("[%d] INFO %s " fmt "\r\n", osKernelGetTickCount(), LOG_TAG, ##__VA_ARGS__) //变参log打印
说明:
fmt
:格式,即printf("[%d] INFO %s " fmt "\r\n", osKernelGetTickCount(), LOG_TAG,
这一部分,输出固定格式内容:
[内核计数值] INFO Wifista:
...
:缺省号代表一个可以变化的参数表。使用保留名 VA_ARGS 把参数传递给宏。当宏的调用展开时,实际的参数就传递给 printf()了。osKernelGetTickCount():
获取 RTOS 内核计数
效果展示:
调用:
LOGI("bssid: %s, rssi: %d, connState: %d, reason: %d, ssid: %s",
macAddress, info->rssi, info->connState, info->disconnectedReason, info->ssid); //log打印连接信息
输出:
[8163] INFO Wifista: bssid: 02:5A:13:D2:C5:8F, rssi: 34, connState: 1, reason: 0, ssid: jaychou
3.2 PrintLinkedInfo()打印连到的接AP信息
很好理解,没用过snprintf()函数的注意一下就好了。
static void PrintLinkedInfo(WifiLinkedInfo* info) //打印连接信息,在bssid上右键即可打开对应的头文件,查看具体的参数含义
{
if (!info) return;
static char macAddress[32] = {0}; //暂时存疑,mac地址是6个字节,即6个char,此处为什么用32个char呢?
unsigned char* mac = info->bssid; //在基础设施BSS中,BSSID是无线接入点(WAP)的MAC地址.
snprintf(macAddress, sizeof(macAddress), "%02X:%02X:%02X:%02X:%02X:%02X", //格式化mac地址赋值给macAddress
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
LOGI("bssid: %s, rssi: %d, connState: %d, reason: %d, ssid: %s",
macAddress, info->rssi, info->connState, info->disconnectedReason, info->ssid); //log打印连接信息
}
输入是一个结构体指针,定义如下:
typedef struct {
char ssid[WIFI_MAX_SSID_LEN];
unsigned char bssid[WIFI_MAC_LEN];
int rssi;
WifiConnState connState;
unsigned short disconnectedReason;
} WifiLinkedInfo;
3.3 SecurityTypeName()返回AP加密方式(安全类型)
随便打开一个wifi热点,设置里面可以看到这些选项。注意函数指针。
static char* SecurityTypeName(WifiSecurityType type) //返回扫描到的wifi热点的安全类型,同样在对应的头文件中有定义
{
switch (type)
{
case WIFI_SEC_TYPE_OPEN:
return "OPEN";
case WIFI_SEC_TYPE_WEP:
return "WEP";
case WIFI_SEC_TYPE_PSK:
return "PSK";
case WIFI_SEC_TYPE_SAE:
return "SAE";
default:
break;
}
LOGI("unknow type = %x\r\n", type);
return "Unknow";
}
3.4 FormatMacAddress() Mac地址格式化
static char* FormatMacAddress(char* buffer, unsigned char* mac) //格式化mac地址,这里使用了snprintf()函数,后面直接调用该函数即可,不用写下面这很长一段
{
snprintf(buffer, sizeof(buffer), "%02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
return buffer;
}
3.5 PrintScanResult() 打印热点扫描结果
static void PrintScanResult(void) //打印热点扫描的结果 ,周围有哪些热点,及其类型,名称等
{
WifiScanInfo scanResult[WIFI_SCAN_HOTSPOT_LIMIT] = {0}; //默认显示最多64个结果,见头文件的定义
uint32_t resultSize = WIFI_SCAN_HOTSPOT_LIMIT;
memset(&scanResult, 0, sizeof(scanResult));
WifiErrorCode errCode = GetScanInfoList(scanResult, &resultSize);
if (errCode != WIFI_SUCCESS) { //打印错误信息
LOGI("GetScanInfoList failed: %d", errCode);
}
for (uint32_t i = 0; i < resultSize; i++) {
char buffer[32] = {0};
WifiScanInfo info = scanResult[i];
LOGI("Result[%d]: %s, %4s, %d, %d, %d, %s", i,
FormatMacAddress(buffer, info.bssid), SecurityTypeName(info.securityType),
info.rssi, info.band, info.frequency, info.ssid);
}
}
3.6 OnWifiConnectionChanged() 连接状态监听
static int g_connected = 0; //连接状态,1表示连接成功
static void OnWifiConnectionChanged(int state, WifiLinkedInfo* info)
{
if (!info) return;
LOGI("%s %d, state = %d, info = ", __FUNCTION__, __LINE__, state);
PrintLinkedInfo(info);
if (state == WIFI_STATE_AVALIABLE) {
g_connected = 1;
} else {
g_connected = 0;
}
}
3.7 OnWifiScanStateChanged() 扫描状态监听
可以猜测:当扫描结束后,就可以调用3.5中的结果打印函数了。事实的确如此,请看完整代码。
static int g_scanDone = 0; //扫描状态,1表示扫描完毕
static void OnWifiScanStateChanged(int state, int size)
{
LOGI("%s %d, state = %X, size = %d", __FUNCTION__, __LINE__, state, size);
if (state == WIFI_STATE_AVALIABLE && size > 0) {
g_scanDone = 1;
}
}
3.8 hexdump()转换为16进制打印
static void hexdump(void* data, int size) //hexdump一般用来查看"二进制"文件的十六进制编码
{
unsigned char* ptr = data;
printf("hexdump: %p %d: ", data, size);
for (int i = 0; i < size; i++) {
printf("%02X%c", ptr[i], (i+1) % 8 == 0 ? '\n' : ' ');
}
printf("\n");
}
这个函数主要用在打印连接到的AP ip地址、子网掩码、网关信息,其中:
netif:
LwIP抽象出来的各网络接口,协议栈可以使用多个不同的接口,而ethernetif则提供了netif访问硬件的各接口,每个不同的接口有不同的ethernetif。
inet_ntoa()
是编程语言,功能是将网络地址转换成“.”点隔的字符串格式(ip地址显示)。
LWIP:
一个轻量级TCP/IP协议栈。
int i = 0;
for (struct netif* p = netif_list; p; p = p->next, i++) { //打印ip地址,网关地址,子网掩码
hexdump(p->name, sizeof(p->name));
LOGI("[%d]: ip = %s", i, inet_ntoa(p->ip_addr));
LOGI("[%d]: gateway = %s", i, inet_ntoa(p->gw));
LOGI("[%d]: netmask = %s", i, inet_ntoa(p->netmask));
}
输出:
[20:37:18:948] hexdump: 0x2000dfda 2: 65 6E
[20:37:18:948] [8276] INFO Wifista: [0]: ip = 192.168.43.102
[20:37:18:959] [8278] INFO Wifista: [0]: gateway = 192.168.43.1
[20:37:18:959] [8280] INFO Wifista: [0]: netmask = 255.255.255.0
[20:37:18:971] hexdump: 0x2000df7e 2: 65 6E
[20:37:18:971] [8284] INFO Wifista: [1]: ip = 0.0.0.0
[20:37:18:971] [8286] INFO Wifista: [1]: gateway = 0.0.0.0
[20:37:18:985] [8288] INFO Wifista: [1]: netmask = 0.0.0.0
[20:37:18:985] hexdump: 0x20032436 2: 6C 6F
[20:37:18:985] [8291] INFO Wifista: [2]: ip = 127.0.0.1
[20:37:18:996] [8293] INFO Wifista: [2]: gateway = 127.0.0.1
[20:37:18:996] [8295] INFO Wifista: [2]: netmask = 255.0.0.0
看192.168.43.102这个地址就行了,另外两个事环回地址和本网络上的本主机地址,没学过计网的可以了解一下。
3.9 按键中断处理函数
static void GpioIsr(char* arg) //GPIO中断函数,PB9中断控制wifi连接状态
{
(void)arg;
IoTGpioSetIsrMask(IOT_GPIO_PB_09, 0); //不屏蔽PB9的中断功能(因为用它的中断功能确定LED的状态)
control_flag = control_flag == 0 ? 1 : 0; //按一次按键切换一次状态
printf(" Wifi state changed! Now control_flag=%d\n",control_flag); //打印当前flag值
}
其中:control_flag = control_flag == 0 ? 1 : 0
为三目表达式。
4.主要代码
while里面的状态切换,大家或许可以写的更好。
/*
版本:修改版,使用开发版的PB9按键控制wifi的连接与断开
说明:Neptune w800作为接入设备(STA)连接wifi(AP),WIFI名称和密码需要在程序中配置
知识点: AP: 也就是无线接入点,是一个无线网络的创建者,是网络的中心节点。一般家庭或办公室使用的无线路由器就一个AP。
STA站点: 每一个连接到无线网络中的终端(如笔记本电脑、PDA及其它可以联网的用户设备)都可称为一个站点。
运行流程:
*/
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "ohos_init.h"
#include "cmsis_os2.h"
#include "wifi_device.h" //Provides functions for the Wi-Fi station and hotspot modes.即wif连接、断开、参数配置等功能
#include "lwip/netifapi.h"
// #include "lwip/api_shell.h"
#include "iot_gpio_w800.h" //定义了w800引脚,例:IOT_GPIO_PA_00 为PA0
#include "iot_gpio_neptune.h" //提供了操作设备的API:flash, GPIO, I2C, PWM, UART, and watchdog APIs.可进入查看函数简介、参数、返回等信息
#define LOG_TAG "Wifista: " //日志标签
#define LOGI(fmt, ...) printf("[%d] INFO %s " fmt "\r\n", osKernelGetTickCount(), LOG_TAG, ##__VA_ARGS__) //变参log打印
static bool control_flag = 0; //按键控制标志
static void PrintLinkedInfo(WifiLinkedInfo* info) //打印连接信息,在bssid上右键即可打开对应的头文件,查看具体的参数含义
{
if (!info) return;
static char macAddress[32] = {0}; //暂时存疑,mac地址是6个字节,即6个char,此处为什么用32个char呢?
unsigned char* mac = info->bssid; //在基础设施BSS中,BSSID是无线接入点(WAP)的MAC地址.
snprintf(macAddress, sizeof(macAddress), "%02X:%02X:%02X:%02X:%02X:%02X", //格式化mac地址赋值给macAddress
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
LOGI("bssid: %s, rssi: %d, connState: %d, reason: %d, ssid: %s",
macAddress, info->rssi, info->connState, info->disconnectedReason, info->ssid); //log打印连接信息
}
static char* SecurityTypeName(WifiSecurityType type) //返回扫描到的wifi热点的加密方式,同样在对应的头文件中有定义
{
switch (type)
{
case WIFI_SEC_TYPE_OPEN:
return "OPEN";
case WIFI_SEC_TYPE_WEP:
return "WEP";
case WIFI_SEC_TYPE_PSK:
return "PSK";
case WIFI_SEC_TYPE_SAE:
return "SAE";
default:
break;
}
LOGI("unknow type = %x\r\n", type);
return "Unknow";
}
static char* FormatMacAddress(char* buffer, unsigned char* mac) //格式化mac地址,这里使用了snprintf()函数,后面直接调用该函数即可,不用写下面这很长一段
{
snprintf(buffer, sizeof(buffer), "%02X:%02X:%02X:%02X:%02X:%02X", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
return buffer;
}
static void PrintScanResult(void) //打印热点扫描的结果 ,周围有哪些热点,及其类型,名称等
{
WifiScanInfo scanResult[WIFI_SCAN_HOTSPOT_LIMIT] = {0}; //默认显示最多64个结果,见头文件的定义
uint32_t resultSize = WIFI_SCAN_HOTSPOT_LIMIT;
memset(&scanResult, 0, sizeof(scanResult));
WifiErrorCode errCode = GetScanInfoList(scanResult, &resultSize);
if (errCode != WIFI_SUCCESS) { //打印错误信息
LOGI("GetScanInfoList failed: %d", errCode);
}
for (uint32_t i = 0; i < resultSize; i++) {
char buffer[32] = {0};
WifiScanInfo info = scanResult[i];
LOGI("Result[%d]: %s, %4s, %d, %d, %d, %s", i,
FormatMacAddress(buffer, info.bssid), SecurityTypeName(info.securityType),
info.rssi, info.band, info.frequency, info.ssid);
}
}
static int g_connected = 0; //连接状态,1表示连接成功
static void OnWifiConnectionChanged(int state, WifiLinkedInfo* info)
{
if (!info) return;
LOGI("%s %d, state = %d, info = ", __FUNCTION__, __LINE__, state);
PrintLinkedInfo(info);
if (state == WIFI_STATE_AVALIABLE) {
g_connected = 1;
} else {
g_connected = 0;
}
}
static int g_scanDone = 0; //扫描状态,1表示扫描完毕
static void OnWifiScanStateChanged(int state, int size)
{
LOGI("%s %d, state = %X, size = %d", __FUNCTION__, __LINE__, state, size);
if (state == WIFI_STATE_AVALIABLE && size > 0) {
g_scanDone = 1;
}
}
static void hexdump(void* data, int size) //hexdump一般用来查看"二进制"文件的十六进制编码
{
unsigned char* ptr = data;
printf("hexdump: %p %d: ", data, size);
for (int i = 0; i < size; i++) {
printf("%02X%c", ptr[i], (i+1) % 8 == 0 ? '\n' : ' ');
}
printf("\n");
}
static void GpioIsr(char* arg) //GPIO中断函数,PB9中断控制wifi连接状态
{
(void)arg;
IoTGpioSetIsrMask(IOT_GPIO_PB_09, 0); //不屏蔽PB9的中断功能(因为用它的中断功能确定LED的状态)
control_flag = control_flag == 0 ? 1 : 0; //按一次按键切换一次状态
printf(" Wifi state changed! Now control_flag=%d\n",control_flag); //打印当前flag值
}
static void WifiConnectTask(void *arg) //WIFI连接任务(static静态函数,函数名只在本文件生效)
{
(void)arg;
WifiErrorCode errCode; //WifiErrorCode类型结构体变量errCode,其成员是WIFI的各种状态
WifiEvent eventListener = { //wif事件(连接状态改变、扫描状态改变)监听,WifiEvent类型结构体变量eventListener,成员如下
.OnWifiConnectionChanged = OnWifiConnectionChanged,
.OnWifiScanStateChanged = OnWifiScanStateChanged
};
WifiDeviceConfig apConfig = {}; //连接到指定wifi AP的配置,是结构体,下面会对其成员变量赋值(ssid等)
int netId = -1;
osDelay(100);
errCode = RegisterWifiEvent(&eventListener);
LOGI("RegisterWifiEvent: %d", errCode);
// 设置热点参数(可以自行修改蓝牙穿参、串口传参)
strcpy(apConfig.ssid, "jaychou");
strcpy(apConfig.preSharedKey, "12345679");
apConfig.securityType = WIFI_SEC_TYPE_PSK;
while (1)
{
switch (control_flag)
{
case 0:
{
LOGI("sysTicks: %u, kernelTicks: %u", osKernelGetSysTimerCount(), osKernelGetTickCount());
LOGI("IsWifiActive: %d", IsWifiActive()); //此处wifi状态为未连接,0
errCode = EnableWifi(); //激活开发板的wifi,成功后EnableWifi()返回:WIFI_SUCCESS
LOGI("EnableWifi: %d", errCode); //激活成功此处输出0,WIFI_SUCCESS=0
LOGI("IsWifiActive: %d", IsWifiActive()); //此处为1
osDelay(10);
char buffer[32] = {0};
unsigned char mac[6] = {0};
errCode = GetDeviceMacAddress(mac);
LOGI("GetDeviceMacAddress: errCode:%d, FormatMacAddress:%s", errCode, FormatMacAddress(buffer, mac));
g_scanDone = 0; //扫描完毕会置为1,否则while循环扫等待描
errCode = Scan(); //扫描wifi热点
LOGI("Scan: %d", errCode);
LOGI("waiting for scan done...");
while (!g_scanDone) {
osDelay(5);
}
PrintScanResult(); //之前定义的函数,打印扫描结果
osDelay(100);
errCode = AddDeviceConfig(&apConfig, &netId); //添加wifi配置信息,返回netID=0即WIFI_SUCCESS
LOGI("AddDeviceConfig: %d", errCode);
g_connected = 0;
errCode = ConnectTo(netId); //连接到选定的热点
LOGI("ConnectTo netID: %d,errCode: %d", netId, errCode);
LOGI("waiting for connect success...");
while (!g_connected) {
osDelay(10);
}
LOGI("g_connected: %d", g_connected);
osDelay(100);
int i = 0; //联网业务开始
for (struct netif* p = netif_list; p; p = p->next, i++) { //打印ip地址,网关地址,子网掩码
hexdump(p->name, sizeof(p->name));
LOGI("[%d]: ip = %s", i, inet_ntoa(p->ip_addr));
LOGI("[%d]: gateway = %s", i, inet_ntoa(p->gw));
LOGI("[%d]: netmask = %s", i, inet_ntoa(p->netmask));
}
bool flag_1=true;
while(flag_1)
{
switch(control_flag)
{
case 0:break;
case 1:printf("\n===============1============\n\n");flag_1=false;break;
}
osDelay(100);
//break;
}
continue;
}
case 1:
{
errCode = Disconnect(); // disconnect with your AP
LOGI("Disconnect: %d", errCode);
errCode = RemoveDevice(netId); // remove AP config
LOGI("RemoveDevice: %d", errCode);
errCode = DisableWifi();
LOGI("DisableWifi: %d", errCode);
bool flag_2=1;
while (flag_2)
{
switch(control_flag)
{
case 1:break;
case 0:printf("\n===============0============\n\n");flag_2=false;break;
}
osDelay(100);
//break;
}
continue;
}
}
osDelay(100);
}
}
static void WifiConnectDemo(void) //开启一个线程运行wifitask
{
osThreadAttr_t attr;
IoTGpioInit(IOT_GPIO_PB_09); //初始化PB9引脚
IoTGpioSetDir(IOT_GPIO_PB_09,IOT_GPIO_DIR_IN); // input is PB09
IoTIoSetPull(IOT_GPIO_PB_09,IOT_GPIO_PULLHIGH); //PB9上拉输入,上拉输入的好处就是输入的电平不会上下浮动而导致输入信号不稳定,在没有信号输入的情况下可以稳定在高电平。
IoTGpioRegisterIsrFunc(IOT_GPIO_PB_09,IOT_INT_TYPE_EDGE,IOT_GPIO_EDGE_FALL_LEVEL_LOW, GpioIsr, NULL); //中断使能,PB9,边缘触发、下降沿或低电平
attr.name = "WifiConnectTask";
attr.attr_bits = 0U;
attr.cb_mem = NULL;
attr.cb_size = 0U;
attr.stack_mem = NULL;
attr.stack_size = 10240;
attr.priority = osPriorityNormal;
if (osThreadNew(WifiConnectTask, NULL, &attr) == NULL) {
LOGI("[WifiConnectDemo] Falied to create WifiConnectTask!");
}
}
//SYS_RUN是标识用于初始化和启动系统运行阶段的入口
//PP_FEATURE_INIT标识用于初始化和启动应用层功能的入口
APP_FEATURE_INIT(WifiConnectDemo);
5.gn文件配置
5.1 applications/sample/wifi-iot/app/wifitest/BUILD.gn
static_library("wifi_test") {
sources = [
# "wifi_scan_demo.c",
# "wifi_connect_demo.c",
# "wifi_hotspot_demo.c",
"wifi_control.c",
]
include_dirs = [
"//utils/native/lite/include",
"//kernel/liteos_m/components/cmsis/2.0",
"//base/iot_hardware/interfaces/kits/wifiiot_lite",
"//foundation/communication/interfaces/kits/wifi_lite/wifiservice",
#按键控制
"//domains/iot/link/libbuild",
"//base/iot_hardware/peripheral/interfaces/kits"
]
if (board_name == "w800") {
include_dirs += [
"//vendor/winnermicro/w800/src/network/lwip2.0.3/include",
"//vendor/winnermicro/w800/include/arch/xt804/csi_core",
"//vendor/winnermicro/w800/include/arch/xt804",
"//vendor/winnermicro/w800/include/platform",
"//vendor/winnermicro/w800/include/os",
"//vendor/winnermicro/w800/include/net",
"//vendor/winnermicro/w800/include/app",
"//vendor/winnermicro/w800/include/wifi",
"//vendor/winnermicro/w800/include",
]
}
}
5.2 applications/sample/wifi-iot/app/BUILD.gn
import("//build/lite/config/component/lite_component.gni")
lite_component("app") {
features = [
#格式:文件夹名称:文件夹下面BUILD文件中静态库的名称
# "my_test_gn:my_test_gn",
# "demolink:example_demolink",
# "wifi_bt:wifi_bt_test",
"wifitest:wifi_test"
]
}
6.效果展示
6.1 开机默认打开连接
[20:37:02:761] [183] INFO Wifista: RegisterWifiEvent: 0
[20:37:02:764] [184] INFO Wifista: sysTicks: 29585326, kernelTicks: 184
[20:37:02:775] [187] INFO Wifista: IsWifiActive: 0
[20:37:02:775] [189] INFO Wifista: EnableWifi: 0
[20:37:02:775] [190] INFO Wifista: IsWifiActive: 1
[20:37:02:803] [202] INFO Wifista: GetDeviceMacAddress: errCode:0, FormatMacAddress:28:
[20:37:02:805] [205] INFO Wifista: OnWifiScanStateChanged 101, state = 0, size = 0
[20:37:04:412] [wifi_service]: dispatch scan event.
[20:37:04:414] [1009] INFO Wifista: OnWifiScanStateChanged 101, state = 1, size = 10
[20:37:04:424] [1013] INFO Wifista: Scan: 0
[20:37:04:424] [1014] INFO Wifista: waiting for scan done...
[20:37:04:429] [1016] INFO Wifista: Result[0]: CC:, OPEN, -84, 0, 144, CQUPT-2.4G
[20:37:04:434] [1019] INFO Wifista: Result[1]: 52:, PSK, -70, 0, 72, vivo iQOO Neo
[20:37:04:440] [1022] INFO Wifista: Result[2]: CC:, OPEN, -80, 0, 144, CQUPT-2.4G
[20:37:04:445] [1026] INFO Wifista: Result[3]: CC:, OPEN, -78, 0, 144, CQUPT-2.4G
[20:37:04:451] [1029] INFO Wifista: Result[4]: 02:, PSK, -22, 0, 72, jaychou
[20:37:04:456] [1031] INFO Wifista: Result[5]: CC:, OPEN, -62, 0, 144, CQUPT-2.4G
[20:37:04:465] [1035] INFO Wifista: Result[6]: CC:, OPEN, -60, 0, 144, CQUPT-2.4G
[20:37:04:470] [1038] INFO Wifista: Result[7]: CC:, OPEN, -52, 0, 144, CQUPT-2.4G
[20:37:04:476] [1041] INFO Wifista: Result[8]: EE:, PSK, -74, 0, 144, Redmi K40
[20:37:04:482] [1044] INFO Wifista: Result[9]: 4A:, PSK, -78, 0, 144, CQUPT-8G
[20:37:04:689] [1147] INFO Wifista: AddDeviceConfig: 0
[20:37:04:692] InitWifiConfig, disconnect wifi...
[20:37:05:072] join net success
[20:37:05:072] WifiEventCallback status = WIFI_JOIN_SUCCESS
[20:37:05:081] [1341] INFO Wifista: OnWifiConnectionChanged 88, state = 1, info =
[20:37:05:085] [1344] INFO Wifista: bssid: 02:5A:13:D2:C5:8F, rssi: 36, connState: 1, reason: 0, ssid: jaychou
[20:37:05:091] Connect to jaychou done, status = 1!
[20:37:05:095] [1350] INFO Wifista: ConnectTo netID: 0,errCode: 0
[20:37:05:100] [1352] INFO Wifista: waiting for connect success...
[20:37:05:103] [1355] INFO Wifista: g_connected: 1
[20:37:05:132] WifiEventCallback status = NETIF_IP_NET_UP
[20:37:05:307] hexdump: 0x2000dfda 2: 65 6E
[20:37:05:307] [1457] INFO Wifista: [0]: ip = 192.168.43.102
[20:37:05:317] [1459] INFO Wifista: [0]: gateway = 192.168.43.1
[20:37:05:328] [1461] INFO Wifista: [0]: netmask = 255.255.255.0
[20:37:05:328] hexdump: 0x2000df7e 2: 65 6E
[20:37:05:328] [1465] INFO Wifista: [1]: ip = 0.0.0.0
[20:37:05:344] [1467] INFO Wifista: [1]: gateway = 0.0.0.0
[20:37:05:344] [1469] INFO Wifista: [1]: netmask = 0.0.0.0
[20:37:05:344] hexdump: 0x20032436 2: 6C 6F
[20:37:05:344] [1472] INFO Wifista: [2]: ip = 127.0.0.1
[20:37:05:344] [1474] INFO Wifista: [2]: gateway = 127.0.0.1
[20:37:05:358] [1476] INFO Wifista: [2]: netmask = 255.0.0.0
6.2 按一次按键关闭连接
[20:37:09:101] Wifi state changed! Now control_flag=1
[20:37:09:153]
[20:37:09:153] ===============1============
[20:37:09:153]
[20:37:09:355] [3479] INFO Wifista: Disconnect: -9
[20:37:09:357] [3480] INFO Wifista: RemoveDevice: 0
[20:37:09:368] [3482] INFO Wifista: DisableWifi: 0
[20:37:16:118] Wifi state changed! Now control_flag=0
6.3 再按一次打开链接
[20:37:16:118] Wifi state changed! Now control_flag=0
[20:37:16:168]
[20:37:16:168] ===============0============
[20:37:16:177]
[20:37:16:371] [6986] INFO Wifista: sysTicks: 1117762488, kernelTicks: 6986
[20:37:16:382] [6988] INFO Wifista: IsWifiActive: 0
[20:37:16:382] [6990] INFO Wifista: EnableWifi: 0
[20:37:16:382] [6992] INFO Wifista: IsWifiActive: 1
[20:37:16:405] [7003] INFO Wifista: GetDeviceMacAddress: errCode:0, FormatMacAddress:28:
[20:37:16:410] [7006] INFO Wifista: OnWifiScanStateChanged 101, state = 0, size = 0
[20:37:18:021] [wifi_service]: dispatch scan event.
[20:37:18:023] [7812] INFO Wifista: OnWifiScanStateChanged 101, state = 1, size = 9
后面和6.1输出一样的,不复制了。
大家可以做改进,比如第二次连接的时候不再输出那么多的信息,等等。我只做学习wifi功能用,就写到此。
在月光下弹琴
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