CC3000 Fail Connecting to AP

LAlvarezF

Hi, I'ven trying to connect to an AP using CC3000 boosterpack and the MSP-EXP430G2, the problem I'm having is that when I ping the IP of the module (I'm using an static IP) it shows no connection, and after a while it appears to be connected and disconnect again this is the code I'm using, it's based on the basic wifi application.

void main(void){
 WDTCTL = WDTPW + WDTHOLD;

 initDriver();

 wlan_ioctl_set_connection_policy(0x00, 0x00, 0x00);

 ip_config();
	 while(wlan_connect(WLAN_SEC_WPA2,"hardware",0x08,NULL,"danieldorado",0x0C) != 0);

 while(1);
}

void ip_config(void){

 unsigned char IP_Addr[4];
 unsigned char IP_GWAddr[4];
 unsigned char SubnetMask[4];
 unsigned char DNS[4];

 SubnetMask[0] = 255;
 SubnetMask[1] = 255;
 SubnetMask[2] = 255;
 SubnetMask[3] = 0;

 IP_Addr[0] = 10;//IP
 IP_Addr[1] = 0;//IP
 IP_Addr[2] = 0;//IP
 IP_Addr[3] = 2;//IP

 IP_GWAddr[0] = 10;
 IP_GWAddr[1] = 0;
 IP_GWAddr[2] = 0;
 IP_GWAddr[3] = 1;
 
 DNS[0] = 0;
 DNS[1] = 0;
 DNS[2] = 0;
 DNS[3] = 0;
 
 netapp_dhcp((unsigned long *)IP_Addr, (unsigned long *)SubnetMask, (unsigned long *)IP_GWAddr, (unsigned long *)DNS);
}

Also there are days that the module doesn't connect at all. Thanks.

over 11 years ago

0 Raghavendra Shenoy over 11 years ago

TI__Mastermind 27095 points

Hi Luis,

I would suggest slight changes in the way you are calling the APIs.

1) Try not to call the wlan_connect API in a loop. Its a non blocking API. Issue a call to this API and wait for the unsolicited events HCI_EVNT_WLAN_UNSOL_CONNECT and HCI_EVNT_WLAN_UNSOL_DHCP.

2) Similar to the above point, try not to loop in a while(1). Instead, loop until you get the above Unsolicited events. This is the confirmation of a successful connection. After you receive these events, ping from the remote device.

Thanks & Regards,
Raghavendra

0 LAlvarezF over 11 years ago in reply to Raghavendra Shenoy

Prodigy 70 points

Hi, I change my code so I only call wlan_connect once and after that I use hci_unsolicited_event_handler to check for the HCI_EVNT_WLAN_UNSOL_CONNECT event, with the CC3000_UsynchCallback, but I get no event, and also the module is not connecting to the AP.

wlan_connect(WLAN_SEC_WPA2,"hardware",0x08,NULL,"danieldorado",0x0C);

while (ulCC3000Connected == 0){
	hci_unsolicited_event_handler();
        _delay_cycles(8000);
}

The events that I'm masking are HCI_EVNT_WLAN_KEEPALIVE, HCI_EVNT_WLAN_UNSOL_INIT, HCI_EVNT_WLAN_ASYNC_PING_REPORT.

0 LAlvarezF over 11 years ago in reply to LAlvarezF

Prodigy 70 points

I think I found the problem, it seems that the CC3000BOOST I was using has some problem, because I change it and it start working, thanks.

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CC3000 Fail Connecting to AP