CC3220SF: Wi-Fi does not reconnect automatically

Hi Sneha,

I have assigned this post to one of our SW experts, please give them some time to look into this and provide feedback.

Hi,

There is no need to connect manually if you have the automatic mode enabled.

From your description, it looks OK.

Can you share the ConfigureSimplelinkToDefaultState()? what SP are you using?

Regards,

Shlomi

Hi Shlomi,

Here is my snippet of function. sp_3.22.0.1_2.7.0.0_2.2.0.7.bin is used

int ConfigureSimplelinkToDefaultState(void)
{
SlWlanRxFilterOperationCommandBuff_t RxFilterIdMask;
uint16_t BitMap = 0;
uint8_t TxPower = 0;
int16_t ConfigRet = -1;
int ret = -1;

memset(& RxFilterIdMask,0,sizeof(SlWlanRxFilterOperationCommandBuff_t));ConfigRet = sl_Start();
if((0 == ConfigRet) || (SL_RET_CODE_DEV_ALREADY_STARTED == ConfigRet))
{
if (0 != sl_WlanPolicySet(SL_WLAN_POLICY_CONNECTION, SL_WLAN_CONNECTION_POLICY(1, 0 , 0, 0), NULL, 0))
{
return -1;
}

if (0 != sl_NetCfgSet(SL_NETCFG_IPV4_STA_ADDR_MODE, SL_NETCFG_ADDR_DHCP, 0, 0))
{
return -1;
}

BitMap = 0;
if (0 != sl_NetCfgSet(SL_NETCFG_IF, SL_NETCFG_IF_STATE, sizeof(BitMap), (uint8_t *)& BitMap))
{
return -1;
}

if (0 != sl_WlanPolicySet(SL_WLAN_POLICY_SCAN, SL_WLAN_SCAN_POLICY(0, 0), NULL, 0))
{
return -1;
}

TxPower = 0;
if (0 != sl_WlanSet(SL_WLAN_CFG_GENERAL_PARAM_ID, SL_WLAN_GENERAL_PARAM_OPT_STA_TX_POWER, 1, (uint8_t *)&TxPower))
{
return -1;
}

if (0 != sl_WlanPolicySet(SL_WLAN_POLICY_PM, SL_WLAN_NORMAL_POLICY, NULL, 0))
{
return -1;
}

if (0 != sl_NetAppMDNSUnRegisterService(0, 0, 0))
{
return -1;
}

memset(RxFilterIdMask.FilterBitmap, WLAN_CONFIG_DISABLE_RX_FILTER, WLAN_CONFIG_NR_OF_FILTERS);
if (0 != sl_WlanSet(SL_WLAN_RX_FILTERS_ID, SL_WLAN_RX_FILTER_REMOVE, sizeof(SlWlanRxFilterOperationCommandBuff_t), (uint8_t *)&RxFilterIdMask))
{
return -1;
}

if (0 == sl_Stop(200))
{
return 0;
}
}

return 0;
}

Hi,

and if you try to get the policy back, what do you get?

something like: 

ret = sl_WlanPolicyGet(SL_WLAN_POLICY_CONNECTION ,&Policy,0,(_u8*)&length);

Shlomi

Hi,

ret = sl_WlanPolicyGet(SL_WLAN_POLICY_CONNECTION ,&Policy,0,(_u8*)&length); returns 0

The value of Policy is 1 and length is 1.

This is the value as soon as the auto reconnect is set.

yes, so it means that the settings is OK.

In this case, I do not see a reason why it should not work.

can you show me how you add the profile?

Hi Shlomi,

This is the code snippet to connect to AP

long Network_IF_ConnectAP(char *pcSsid, char *pcMacAddress, SlWlanSecParams_t SecurityParams)
{
char acCmdStore[128];
unsigned short usConnTimeout;
unsigned char ucRecvdAPDetails;
long lRetVal;
unsigned long ulIP = 0;
unsigned long ulSubMask = 0;
unsigned long ulDefGateway = 0;
unsigned long ulDns = 0;

g_usConnectIndex = 0;

/* Disconnect from the AP */
Network_IF_DisconnectFromAP();

CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_CONNECTION);
CLR_STATUS_BIT(g_ulStatus, STATUS_BIT_IP_ACQUIRED);

/* Continue only if SSID is not empty */
if(pcSsid != NULL)
{
lRetVal = sl_WlanSetMode(ROLE_STA);
ASSERT_ON_ERROR(lRetVal);

lRetVal = sl_Stop(SL_STOP_TIMEOUT);
lDeviceStatus = sl_Start(0, 0, 0);
ASSERT_ON_ERROR(lDeviceStatus);

/* This triggers the CC32xx to connect to a specific AP. */
lRetVal =
sl_WlanConnect((signed char *) pcSsid, strlen((const char *) pcSsid),
NULL, &SecurityParams, NULL);
ASSERT_ON_ERROR(lRetVal);

/* Wait for ~10 sec to check if connection to desire AP succeeds */
lRetVal = -2;
while(g_usConnectIndex < 10)
{
sleep(1);

if(IS_CONNECTED(g_ulStatus) && IS_IP_ACQUIRED(g_ulStatus))
{
lRetVal = 0;
break;
}
g_usConnectIndex++;
}
}
else
{
UART_PRINT("Empty SSID, Could not connect\n\r");
return(-1);
}

/* Put message on UART */
if (0 == lRetVal)
{
UART_PRINT("\n\rDevice has connected to %s\n\r", pcSsid);

/* Get IP address */
lRetVal = Network_IF_IpConfigGet(&ulIP, &ulSubMask, &ulDefGateway, &ulDns);
ASSERT_ON_ERROR(lRetVal);

/* Send the information */
UART_PRINT("Device IP Address is %d.%d.%d.%d \n\r\n\r",
SL_IPV4_BYTE(ulIP, 3), SL_IPV4_BYTE(ulIP, 2), SL_IPV4_BYTE(ulIP,
1),
SL_IPV4_BYTE(ulIP, 0));

/// currently only one profile allowed
lRetVal = sl_WlanProfileDel(SL_WLAN_DEL_ALL_PROFILES);
lRetVal |= sl_WlanProfileAdd((const int8_t*)pcSsid, (int16_t)strlen((const char *) pcSsid), (const uint8_t*)pcMacAddress, &SecurityParams, NULL, 15, 0);
}
else if (-2 == lRetVal)
{
UART_PRINT("\n\r Could not connect to the given router \n\r");
}
return(lRetVal);
}

what is the pcMacAddress set to?

what MAC address is it?

yes - the MAC address of the chipset

which chipset? the cc3220 itself?

cc3220sf