# Regarding 5400W Coding
**URL:** https://forums.digi.com/t/regarding-5400w-coding/9140
**Category:** Rabbit
**Created:** [December 12, 2008, 7:29am UTC](https://forums.digi.com/t/regarding-5400w-coding/9140 "2008-12-12T07:29:20Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@vtherock](https://forums.digi.com/u/vtherock)
#### Post date: [December 12, 2008, 7:29am UTC](https://forums.digi.com/t/regarding-5400w-coding/9140/1 "2008-12-12T07:29:20Z")
Hello guys, I having a problem regarding the coding for 5400W. With the sample given BROWSELED.C I am able to compile and control the 2 LEDs using web browser.However, my project is to use the S2 and S3 to control the light and to display in the web browser. But seem that if I change the coding of BROWSELED.C it onli keep on causing a loop at costate function.
So hope someone could give me so advise or suggestion thx…
---
### Author:  [@dhanraj\_kmr1](https://forums.digi.com/u/dhanraj_kmr1)
#### Post date: [December 20, 2008, 11:02am UTC](https://forums.digi.com/t/regarding-5400w-coding/9140/2 "2008-12-20T11:02:34Z")
Hi friend,
I have a RCM5400W wifi module which i bought recently. Just i need to toggle my onboard LEDs using browseled.c program. For that do i need Wifi receiver on my PC to which i want to communicate with? then is there any name fixed name or no for it? pls reply.
If i do this succesfully then there is a mile to go on this. I will be posting on my next visit.
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### Author:  [@komoeyay](https://forums.digi.com/u/komoeyay)
#### Post date: [March 20, 2009, 2:07am UTC](https://forums.digi.com/t/regarding-5400w-coding/9140/3 "2009-03-20T02:07:21Z")
I would like to know that, I’ve “RCM5600W” module. I want to set IP address in one LAN, that network has a WAP key. The problem is that, I don’t know how to set IP for that network. Without WAP key is ok (Static, DHCP). FTP also ok. Only thing is how to resolve WAP key.
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### Author:  [@vtherock](https://forums.digi.com/u/vtherock)
#### Post date: [December 22, 2008, 9:59am UTC](https://forums.digi.com/t/regarding-5400w-coding/9140/4 "2008-12-22T09:59:29Z")
Hi dhanraj\_kmr,
U need a wifi pc or a laptop to recieve the connection for 5400w. By default the name is already given which is rabbittest. U can press ctrl+H to see the guide for Tconfig. It will help u when u go along.
---
### Author:  [@dhanraj\_kmr1](https://forums.digi.com/u/dhanraj_kmr1)
#### Post date: [December 26, 2008, 6:40am UTC](https://forums.digi.com/t/regarding-5400w-coding/9140/5 "2008-12-26T06:40:52Z")
Hi friend,
Really thanks for your reply. I dont have much knowledge abt wifi. but I had to realised that. so i bought a wireless-G USB 2.0 Adapter from NETGEAR 2.4Ghz, 802.11g(WG111).
So i ran the software which came along with it. Then i found a window NETGEAR WG111V3 smartwizard. then i added SSID as ‘rabbitwifi’, and network type as computer to computer(AdHoc) then thats it. Then i had to run a sample pro Wifiscan.c. As a result i was geeting like this
## "Starting scan… WiFi Scan Results: 1 entries Channel Signal MAC Access Point SSID
```
6 32 02:e0:60:52:28:84 [rabbitwifi]
```
Scan done, exiting… ".
Here i have some doubts 1st on my USB MAC address is :001E2AAf609C
But here on my result its printing something else. And whats that term singal 32?😕
When i run the same pro next time i was getting like this
## "Starting scan… WiFi Scan Results: 3 entries Channel Signal MAC Access Point SSID
```
6 38 02:e0:6d:71:2c:e1 [rabbitwifi]
6 14 00:1b:11:a2:2d:06 [Indus1]
6 14 00:13:46:70:4d:46 [Indus2]
```
Scan done, exiting… "
what are those Indus1 and Indus2. Now see my signal is 38???
And even my USB and rabbit wifi getting some heat morethan what i expected while its communicating eachother. I’ve connected my rabbit USB program cable and USB adapter’s cable on my PC’s near by slot. Can i do like this? or should i connect my USB adapter on another system? even i haven’t changed my PC’s IP add. here’s the code which i am using…
#define TCPCONFIG 5
#define \_PRIMARY\_STATIC\_IP “10.10.6.100”
#define \_PRIMARY\_NETMASK “255.255.255.0”
#define MY\_GATEWAY “10.10.6.1”
#define MY\_NAMESERVER “10.10.6.1”
#define IFC\_WIFI\_SSID “rabbitTest”
#define IFC\_WIFI\_ROAM\_ENABLE 1
#define IFC\_WIFI\_ROAM\_BEACON\_MISS 20
#define IFC\_WIFI\_CHANNEL 1
#define IFC\_WIFI\_MODE IFPARAM\_WIFI\_ADHOC
#define IFC\_WIFI\_REGION IFPARAM\_WIFI\_REGION\_AMERICAS
#define IFC\_WIFI\_ENCRYPTION IFPARAM\_WIFI\_ENCR\_NONE
#define DISABLE\_TCP
#define DISABLE\_DNS
#use “dcrtcp.lib”
#memmap xmem
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
print\_macaddress
```
Routine to print out mac_addr types.
```
\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/
void print\_macaddress(far unsigned char \*addr)
{
printf(“%02x:%02x:%02x:%02x:%02x:%02x”, addr[0], addr[1], addr[2],
addr[3], addr[4], addr[5]);
}
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
rxsignal\_cmp
```
qsort comparison, based on rx signal strength.
```
Inputs:
a, b – far pointers to \_wifi\_wln\_scan\_bss, a struct populated by
the WIFI SCAN, including rx\_signal (relative receive signal
strength).
```
Return value: > 0 if a > b
< 0 if a < b
0 if a == b
```
\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/
int rxsignal\_cmp(far \_wifi\_wln\_scan\_bss \*a, far \_wifi\_wln\_scan\_bss \*b) {
return b-\>rx\_signal - a-\>rx\_signal;
}
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
scan\_callback
Prints out the sorted results of a BSS scan.
Called when WIFI SCAN is complete.
The argument is a pointer to the wifi\_scan\_data structure generated by
the scan.
We use \_f\_qsort to sort the data since the data is `far.’ \_f\_qsort
requires a comparison function, and we use the rxsignal\_cmp() function
above.
Inputs:
data – far pointer to wifi\_scan\_data structure, which contains a
count of the number of responses, and an array of
\_wifi\_wln\_scan\_bss structures, with the first `count’
containing valid data for the responses.
\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*_/
char scandone;
root void scan\_callback(far wifi\_scan\_data_ data)
{
uint8 i, j;
far \_wifi\_wln\_scan\_bss \*bss;
char ssid\_str[33];
```
bss = data->bss;
// Sort results by signal strength. Need to use _f_qsort, since bss is
// far data.
_f_qsort(bss, data->count, sizeof(bss[0]), rxsignal_cmp);
// Print out results
```
printf("WiFi Scan Results: %d entries
", data-\>count);
printf("Channel Signal MAC Access Point SSID
“);
printf(”-------------------------------------------------------
“);
for (i = 0; i \< data-\>count; i++) {
printf(” %2d %2d “,
bss[i].channel, bss[i].rx\_signal);
print\_macaddress(bss[i].bss\_addr);
wifi\_ssid\_to\_str (ssid\_str, bss[i].ssid, bss[i].ssid\_len);
printf(” [%s]
", ssid\_str);
}
scandone = 1;
}
/\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*
main
```
Scan for BSS's. Must call tcp_tick(NULL) to drive scanning process.
```
\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*/
void main(void)
{
int val0, val1, i, level;
unsigned long int end;
```
sock_init();
```
scandone = 0;
```
// Enable Roaming
ifconfig (IF_WIFI0, IFS_WIFI_ROAM_ENABLE, 1, IFS_END);
// Set roam event to loss of 20 beacons
ifconfig (IF_WIFI0, IFS_WIFI_ROAM_BEACON_MISS, 20, IFS_END);
```
// Bring the interface down before starting a scan
ifdown(IF\_WIFI0);
while (ifpending(IF\_WIFI0) != IF\_DOWN)
tcp\_tick(NULL);
// Set the callback before requesting scan
printf("Starting scan…
“);
ifconfig(IF\_WIFI0, IFS\_WIFI\_SCAN, scan\_callback, IFS\_END);
while ( ! scandone) {
tcp\_tick(NULL);
}
printf(”
Scan done, exiting…");
exit(0);
}
Am i doing correctly?
pls correct me if i am wrong…
---
### Author:  [@vtherock](https://forums.digi.com/u/vtherock)
#### Post date: [December 26, 2008, 7:11am UTC](https://forums.digi.com/t/regarding-5400w-coding/9140/6 "2008-12-26T07:11:55Z")
Hi fren,
Sorry to tell u that I not a pro for this kit yet. But regarding Wifiscan.c. I did try this sample in school before. If I not wrong it is scanning the surrounding for the available wifi Mac Access point. But for the digit change from 32 to 38 I do not know wat does it stands. Maybe need to look up old book -.-. For the heat problem, I also do encounter it after I compiled my code to run wifi. It will heat up after so time. Dun worri will not have any problem. I on it more than 9hrs or so. hmm… if ur coding is gotten from the sample.c think it will be much a problem…
---
### Author:  [@dhanraj\_kmr1](https://forums.digi.com/u/dhanraj_kmr1)
#### Post date: [December 26, 2008, 10:25am UTC](https://forums.digi.com/t/regarding-5400w-coding/9140/7 "2008-12-26T10:25:44Z")
Anyway frnd thans for the reply. I didnt learn much networking concepts in college days. Thats the problem. K leave that code its exactly a sample code only;). but we should use the IP confic for both trsnsmitting as well as receiving on ethernet communication right ? But in wifi where we do this at wifi pc side. and in system tray it says “wireless connection is not connected”. is it affecting my infrastructure mode?
Now i stepped up the BROWSELED.c pro. While i compilin he i am getting
1 error and 4 warrnings. they are
line 142 : ERROR WIFI\_MAC\_MGMT.LIB : ) is missing/expected.
line 142 : WARNING WIFI\_MAC\_MGMT.LIB : Conversion to incompatible pointer type
line 142 : WARNING WIFI\_MAC\_MGMT.LIB : Conversion to incompatible pointer type
line 142 : WARNING WIFI\_MAC\_MGMT.LIB : Conversion to incompatible pointer type
line 154 : WARNING WIFI\_MAC\_MGMT.LIB : Conversion to incompatible pointer type
if i clik on them they just go to WIFI\_MAC\_MGMT.LIB. but there is nothing.
whats goin on? can you fix it even if u r not a pro…