# BW16使用wlan\_repeater範例時STA reconnect問題

**URL:** <https://forum.amebaiot.com/t/bw16-wlan-repeater-sta-reconnect/925>\
**Category:** WiFi\
**Tags:** evb-bw16, rtl872xd\
**Created:** [November 24, 2021, 1:56am UTC](https://forum.amebaiot.com/t/bw16-wlan-repeater-sta-reconnect/925 "2021-11-24T01:56:36Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![AlanWL](https://avatars.discourse-cdn.com/v4/letter/a/bbce88/32.png) [@AlanWL](https://forum.amebaiot.com/u/AlanWL)\
**Post date:** [November 24, 2021, 1:56am UTC](https://forum.amebaiot.com/t/bw16-wlan-repeater-sta-reconnect/925/1 "2021-11-24T01:56:36Z")

</div>

我建置Standard SDK於BW16上，  
並使用wlan\_repeater的範例測試AP+STA mode同時使用的情況，  
在範例中我關閉了WLAN\_FAST\_CONNECT，  
並於開啟STA模式前啟用autoreconnect的功能，  
剛開始BW16可以正常開啟AP並同時使用STA進行連線；  
當我斷開STA所連線的網路時，  
BW16開始進行重新連線的動作，但此時BW16上的AP便無法使用了，  
需等到BW16的STA連接上，AP才會再重新啟動，  
想請問這部分該如何修正呢?  
或者除了wlan\_repeater外還有其他AP+STA mode的使用範例可以參考嗎?  
代碼如下：

```auto
static void example_wlan_repeater_thread(void *param)
{
	/* To avoid gcc warnings */
	( void ) param;

	// Wait for other task stable.
	vTaskDelay(4000);

	/ *********************************************************************************
	*	1. Enable Wi-Fi with concurrent (STA + AP) mode
	********************************************************************************* /
	printf("\n\r[WLAN_REPEATER_EXAMPLE] Enable Wi-Fi with concurrent (STA + AP) mode\n");

	/ *********************************************************************************
	*	1-1. Disable Wi-Fi
	********************************************************************************* /
	printf("\n\r[WLAN_REPEATER_EXAMPLE] Disable Wi-Fi\n");
	wifi_off();
	vTaskDelay(20);

	/ *********************************************************************************
	*	1-2. Enable Wi-Fi with STA + AP mode
	********************************************************************************* /
	printf("\n\r[WLAN_REPEATER_EXAMPLE] Enable Wi-Fi with STA + AP mode\n");
	if(wifi_on(RTW_MODE_STA_AP) < 0){
		printf("\n\r[WLAN_REPEATER_EXAMPLE] ERROR: wifi_on failed\n");
		return;
	}

	uint8_t *mac = LwIP_GetMAC(&xnetif[0]);
	bridgeif_set_mac_init(mac);
	bridgeif_add_port_sta_netif();
	bridgeif_add_port_ap_netif();

	/ *********************************************************************************
	*	1-3. Start AP
	********************************************************************************* /
	printf("\n\r[WLAN_REPEATER_EXAMPLE] Start AP\n");
	char *ssid = "AmebaRPT";
	char *password = "12345678";	// NULL for RTW_SECURITY_OPEN
	int channel = 6;

	if(wifi_start_ap(ssid, (password)?RTW_SECURITY_WPA2_AES_PSK:RTW_SECURITY_OPEN, password, strlen(ssid), (password)?strlen(password):0, channel) < 0) {
		printf("\n\r[WLAN_REPEATER_EXAMPLE] ERROR: wifi_start_ap failed\n");
		return;
	}

	/ *********************************************************************************
	*	1-4. Check AP running
	********************************************************************************* /
	printf("\n\r[WLAN_REPEATER_EXAMPLE] Check AP running\n");
	int timeout = 20;
	while(1) {
		char essid[33];
		if(wext_get_ssid(WLAN1_NAME, (unsigned char *) essid) > 0) {
			if(strcmp((const char *) essid, (const char *)ssid) == 0) {
				printf("\n\r[WLAN_REPEATER_EXAMPLE] %s started\n", ssid);
				break;
			}
		}
		if(timeout == 0) {
			printf("\n\r[WLAN_REPEATER_EXAMPLE] ERROR: Start AP timeout\n");
			return;
		}
		vTaskDelay(1 * configTICK_RATE_HZ);
		timeout --;
	}
        / *********************************************************************************
	*	1-5. Start DHCP server
	********************************************************************************* /
        
	printf("\n\r[WLAN_REPEATER_EXAMPLE] Start DHCP server\n");

#if CONFIG_LWIP_LAYER
	dhcps_init(&xnetif[1]);
	vTaskDelay(1000);
#endif
        
	/ *********************************************************************************
	*	1-6. Connect to AP using STA mode and start DHCP client
	********************************************************************************* /
        
	printf("\n\r[WLAN_REPEATER_EXAMPLE] Connect to AP\n");
	char *sta_ssid = "iPhone";
	char *sta_password = "77777777";
        wifi_set_autoreconnect(1);
	if(wifi_connect(sta_ssid, RTW_SECURITY_WPA2_AES_PSK, sta_password, strlen(sta_ssid), strlen(sta_password), -1, NULL) == RTW_SUCCESS)
                LwIP_DHCP(0, DHCP_START);
        
        printf("\n\r[WLAN_REPEATER_EXAMPLE] Task delete.\n");
	vTaskDelete(NULL);
}

```