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Hello, i was trying to join a different wifi network by using the wiced_network_down() method, but it fails. I searched around and found that it fails because the wiced_ip_down() method fails, however if i call wiced_leave_ap() it successfully disassociates the station(my device ) from the AP and i am able to join another AP. Am i doing somehing wrong? Or is it a bug?
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WICED Studio
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Please let us know the platform in which wiced_network_down() fails along with the error code. Also if possible, please share a reduced version of your project where you could reproduce the error.
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I am using this version(taken from the version txt file of my ide) Wiced_006.001.000.0085 , the platform i use is EMW3165 by mxchip, i used the files they provide and followed the procedure they list on their website to add this platform in the wiced wifi studio.
!
wiced_dct_read_lock( (void**) &dct_wifi_config_new, WICED_TRUE, DCT_WIFI_CONFIG_SECTION, 0, sizeof( *dct_wifi_config_new ) );
wiced_dct_read_unlock( (void*) dct_wifi_config_new, WICED_FALSE );
strcpy(&dct_wifi_config_new->stored_ap_list[0].security_key,wifiKey);
dct_wifi_config_new->stored_ap_list[0].security_key_length=strlen(wifiKey);
deinit_app_services(WICED_STA_INTERFACE);
result=wiced_leave_ap(WICED_STA_INTERFACE);
if(result!=WICED_SUCCESS)
{
WPRINT_APP_INFO(("Cant bring interface down error %d\n",result));
} ! !
The deinit_app_services_method de initializes a tcp server i have running and a Gedday instance
!
void deinit_app_services(wiced_interface_t interfaceToInit)
{
wiced_result_t result;
/*Deregister network connection callbacks*/
wiced_network_deregister_link_callback(network_up,network_down,interfaceToInit);
/* Drop tcp connections, deregister callbacks and delete socket*/
wiced_tcp_unregister_callbacks(&tcp_server_handle.socket);
wiced_tcp_disconnect(&tcp_server_handle.socket);
wiced_tcp_delete_socket(&tcp_server_handle.socket);
/*Deinit mDNS and deregister all services*/
gedday_deinit();
}
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The mxchip module EMW3165 contains CYW43362. We do not have this module so we had tested wiced_network_down() on platform BCM943362WCD4 but this error could not be reproduced. Create a simple project with the following statements:
wiced_result_t result;
wiced_init();
wiced_network_up(WICED_STA_INTERFACE, WICED_USE_EXTERNAL_DHCP_SERVER, NULL);
result=wiced_network_down(WICED_STA_INTERFACE);
printf("Result of wiced_network_down() is %d\n",result);
Check the result of wiced_network_down().
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It returns 0 so that must mean it is successful. I will investigate some more, could it be that the change in wifi config dct hinders the ability of the network down function?
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The role of DCT in causing this issue is not clear to me right now. There is no DCT API call in wiced_ip_down(). You can configure the DCT and call the DCT API after wiced_network_down(). If the issue still persists, you can rule out DCT as a cause.