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本文來源電子發(fā)燒友社區(qū)，作者：華仔stm32，帖子地址：https://bbs.elecfans.com/jishu_2287654_1_1.html

跟著這篇學(xué)習(xí)了一下wifi連網(wǎng)：【HarmonyOS HiSpark Wi-Fi IoT 套件試用連載】第5章 WiFi聯(lián)網(wǎng)(STA模式) - HarmonyOS技術(shù)社區(qū)-電子技術(shù)論壇- 廣受歡迎的專業(yè)電子論壇! (elecfans.com)。

wifi_app.c:

/**
******************************************************************************
* [url=home.php?mod=space&uid=1455510]@file[/url] wifi_app.c
* [url=home.php?mod=space&uid=40524]@author[/url] BruceOu
* [url=home.php?mod=space&uid=644434]@version[/url] V1.0
* @date 2022-06-19
* [url=home.php?mod=space&uid=2676013]@blog[/url]
* [url=home.php?mod=space&uid=3179494]@Official[/url] Accounts
* [url=home.php?mod=space&uid=2666770]@Brief[/url]
******************************************************************************
*/
#include
#include
#include "ohos_init.h"
#include "cmsis_os2.h"
#include"hi_wifi_api.h"
#include"lwip/ip_addr.h"
#include "lwip/netifapi.h"
#define SSID "HUAWEI-21321312"
#define PASSWORD "12423424234@"
static struct netif *g_lwip_netif = NULL;
/**
* @briefSet netif's ip, gatewayand netmask
* [url=home.php?mod=space&uid=3142012]@param[/url]pst_lwip_netif
* @retval None
*/
void hi_sta_set_addr(struct netif *pst_lwip_netif)
{
ip4_addr_t st_gw;
ip4_addr_t st_ipaddr;
ip4_addr_t st_netmask;
if (pst_lwip_netif == NULL)
{
printf("hisi_reset_addr::Nullparam of netdevrn");
return;
}
IP4_ADDR(&st_gw, 192, 168, 3, 1);
IP4_ADDR(&st_ipaddr, 192, 168, 3,100);
IP4_ADDR(&st_netmask, 255, 255, 255,0);
netifapi_netif_set_addr(pst_lwip_netif,&st_ipaddr, &st_netmask, &st_gw);
}
/**
* @briefWifi connect
* @paramNone
* @retval None
*/
int hi_wifi_start_connect(void)
{
int ret;
errno_t rc;
hi_wifi_assoc_request assoc_req = {0};
// Copy SSID to assoc_req
rc = memcpy_s(assoc_req.ssid,HI_WIFI_MAX_SSID_LEN + 1, SSID, strlen(PASSWORD));
if (rc != EOK)
{
printf("[Wifi Connnect]hi_wifi_sta_connect fail");
printf("%s %d rn",__FILE__, __LINE__);
return -1;
}
//Set encryption method
assoc_req.auth = HI_WIFI_SECURITY_WPA2PSK;
// Wifi password
memcpy(assoc_req.key, PASSWORD,strlen(PASSWORD));
ret = hi_wifi_sta_connect(&assoc_req);
if (ret != HISI_OK)
{
printf("[WifiConnnect] hi_wifi_sta_connect fail");
printf("%s %d rn",__FILE__, __LINE__);
return -1;
}
return 0;
}
/**
* @briefwifi task
* @paramNone
* @retval None
*/
void wifi_task(void)
{
int ret;
char ifname[WIFI_IFNAME_MAX_SIZE + 1] ={0};
int len = sizeof(ifname);
unsigned intnum = WIFI_SCAN_AP_LIMIT;
//Step 1: Start STA mode, AT+STARTSTA
ret = hi_wifi_sta_start(ifname, &len);
if (ret != HISI_OK)
{
printf("[Wifi Connnect]hi_wifi_sta_start fail");
printf("%s %d rn",__FILE__, __LINE__);
return;
}
// Step 2: Connect to the specified AP:,AT+CONN="SSID", ,2,"PASSWORD"
ret = hi_wifi_start_connect();
if (ret != 0)
{
printf("[Wifi Connnect]hi_wifi_start_connect fail");
printf("%s %d rn",__FILE__, __LINE__);
return ;
}
// Step 3: DHCP requests the IP address ofwlan0 from the AP, AT+DHCP=wlan0,1
g_lwip_netif = netifapi_netif_find(ifname);
if(NULL == g_lwip_netif)
{
printf("[Wifi Connnect]netifapi_netif_find fail");
printf("%s %d rn",__FILE__, __LINE__);
return;
}
//DHCP automatically assigns IP
if(ret !=netifapi_dhcp_start(g_lwip_netif))
{
printf("[Wifi Connnect]netifapi_dhcp_start fail");
return;
}
printf("[Wifi Connnect] Connect towifi successfullyn");
}
SYS_RUN(wifi_task);

復(fù)制代碼

BUILD.gn:

static_library("wifi_app") {
sources = [
"wifi_app.c"
]
include_dirs = [
"http://utils/native/lite/include"
]
}

復(fù)制代碼

app/BUILD.gn為：

import("http://build/lite/config/component/lite_component.gni")
lite_component("app") {
features = [
"iothardware:led_example",
"wifi_connect:wifi_app"
]
}

復(fù)制代碼

編譯通過，下載后顯示wifi連接成功，但是報錯：

ready to OS start
sdk ver:Hi3861V100R001C00SPC025 2020-09-03 18:10:00
FileSystem mount ok.
wifi init success!
hilog will init.
hievent will init.
hievent init success.
[Wifi Connnect] Connect towifi successfully
hiview init success.
No crash dump found!
+NOTICE:SCANFINISH
+NOTICE:NETWORK NOT FIND
+NOTICE:SCANFINISH
+NOTICE:NETWORK NOT FIND

復(fù)制代碼

麻煩各位大佬幫解答一下。

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