CC3000 Basic Wi-Fi example application for MSP430

Hi,

I did some more debugging on the SEND DATA and what I observed is my previous command "03" which is a socket is not populating ulSocket variable with correct value. Value of ulSocket (and so value of "sd") is 0 when the application is doing sendto.

Any reason why above could be happening? I will do some more debugging on identifying whey socket() api is returning 0 but any quick pointer here would be helpful.

Regards,

Bhavin

Hi Bhavin, 

The ulSocket value starts from 0 and it increments every time you open another socket, it will decrease when you close the socket (07), or it times out. Are you able to use a sniffer and see if there are any UDP packets sent by the cc3000. 

Pedro 

The send command (04) will transmit from the CC3000, the receive command will get data from the remote device to the CC3000.  To check if data is sent or received, you need a UDP server app. I have a java GUI app that I build to send/receive UDP packets.  Also you can use iperf (http://sourceforge.net/projects/iperf/files/jperf/jperf%202.0.0/jperf-2.0.0.zip/download)  which you can set as UDP server or client. 

Pedro 

Hi Bhavin,

Bhavin K said:

I tried below command as well assuming that send command is for sending out from CC3000 which has IP address of my PC 192.168.1.100 which is connected with TP-LINK switch. I don't see anything on the wireshark coming out from CC3000  with srouce IP 192.168.1.105 to destination IP 192.168.1.100

thats right the send command(04) takes the receiving end's ip address and receiving end's port which is PC in your case,

try following these steps and let us know  the result,

1. As you are using static ip on your cc3000 with default gateway 192.168.1.1 which is the IP of your AP.

Set your PC's default gateway also as 192.168.1.1.

2. Note down the udp port on your PC by executing the following in the command prompt,

netstat -an -p udp

output will be something like below which will list out the udp ports on your computer

 Proto  Local Address          Foreign Address        State

 UDP    192.168.1.100:137      *:*

3. Now open the socket through hyperterminal with command 03

4. without any delay (the socket gets timed out) give the send command as below,

040512345020089c0a80164  (make sure the command is in lower case)

Now you should be able to see the udp packets on wireshark (make sure the udp/ethernet/ipv4 protocols are selected in the wireshark analysis)

Hi,

I followed the steps mentioned above but still I can not send the packet out from CC3000. Below is the screenshot showing the call stack execution on send command and wlan_tx_buffer before it performs SpiWrite to CC3000. Is there anything missing in the wlan_tx_buffer as this is the buffer which seems to be used to send data/command info to CC3000 to do all operations.

My CC3000 ip address is 192.168.1.105.

My PC ip address: 192.168.1.106

Here is the output of the command which you sent, which shows socket 137 for my PC IP address.

C:\Users\a0133017>netstat -an -p udp

Active Connections

  Proto  Local Address          Foreign Address        State

  UDP    0.0.0.0:123            *:*

  UDP    0.0.0.0:500            *:*

  UDP    0.0.0.0:3702           *:*

  UDP    0.0.0.0:3702           *:*

  UDP    0.0.0.0:4500           *:*

  UDP    0.0.0.0:55020          *:*

  UDP    0.0.0.0:55425          *:*

  UDP    0.0.0.0:59167          *:*

  UDP    0.0.0.0:64589          *:*

  UDP    0.0.0.0:65344          *:*

  UDP    0.0.0.0:65345          *:*

  UDP    127.0.0.1:50368        *:*

  UDP    127.0.0.1:50371        *:*

  UDP    127.0.0.1:50946        *:*

  UDP    127.0.0.1:52281        *:*

  UDP    127.0.0.1:53016        *:*

  UDP    127.0.0.1:53779        *:*

  UDP    127.0.0.1:53784        *:*

  UDP    127.0.0.1:54681        *:*

  UDP    127.0.0.1:54682        *:*

  UDP    127.0.0.1:55019        *:*

  UDP    127.0.0.1:55638        *:*

  UDP    127.0.0.1:57413        *:*

  UDP    127.0.0.1:59209        *:*

  UDP    127.0.0.1:62305        *:*

  UDP    127.0.0.1:62514        *:*

  UDP    127.0.0.1:63343        *:*

  UDP    192.168.1.106:137      *:*

  UDP    192.168.1.106:138      *:*

I can still ping CC3000 at 192.168.1.105 fine. This time I did not use command for static IP configuration. It looks like it is automatically (may be via DHCP) getting 192.168.1.105 IP address everytime.

Do I have to do “first time config” everytime? Currently I am doing it everytime I connect power to the board (i.e. connect board to USB port of my PC).

Regards,

Bhavin

BhavinKharadi said:

  UDP    192.168.1.106:137      *:*

  UDP    192.168.1.106:138      *:*

Your UDP ports are 137/138 also your PC's Ip address is 192.168.1.106

1. have you changed the send command according to this ip address?

2. what are the default gateways of PC and CC3000? are the same?

BhavinKharadi said:

Do I have to do “first time config” everytime? Currently I am doing it everytime I connect power to the board (i.e. connect board to USB port of my PC

I too do the same whenever I boot the board, just check it if doing the first time configuration once is enough..

Hi cbn,

Yes, my send command is modified to send it to PC IP address.

Default gateway of my PC is 192.168.1.1 from ipconfig command on my PC. I don't know how to check default gateway for CC3000. I can ping CC3000 @192.168.1.105 successfully and I can see those packets in wireshark as well.

As per my previous log, i sent the memory capture for the wlan_tx_buffer before it is sent via SPI to CC3000. I think that is the command which goes to CC3000 finally to do any actions. Is that correct? If answer is yes, then do you see any thing wrong in that command?

Regards,

BK

Hi BK, 

Have you checked if you are able to receive UDP packets on your PC? If you try from another device, such as an iPhone with  a UDP client/server app, can you receive UDP packets on your PC? Sometimes firewalls block UDP connections. I use windows 7 and I have to disable the firewall temporary to receive UDP packets. 

Pedro 

Hi cbn,

I could now send and receive data from CC3000. It was windows firewall settings on Windows 7 which was causing this issue.

Thanks for the prompt responses.

Regards,

BK

Hello

 I use EXP430F5438A to link CC3000.

Hyper Terminal shows:

My Example App: driver version is 1.6.1.2       (is it correctly)

1: command 01.  Then return Simple config DONE.
2: command 02.  Then return  DONE. (Should I choose which SSID I join? But I can not type SSID on theTerminal)
3. command 03.  Then return DONE.(OPEN UDP socket)

4. command 04.  Then return DONE.Then I type 0512345020089C0A80065

(For sending data of 12345 to 192.168.0.101  on socket 137 (0x0089))
Then it shut down

5.Should command 08 be set? But i can not type IP address on theTerminal.

I can ping to cc3000 from pc

Hi 

I was reading the comments and i was wondering if u would know how to set a default gateway of my cc3000 via energia ide. Currently, i managed to program my cc3000 to connect to the LAN cable but not the internet. I confirmed this because i can't ping the ip adress. Help pls, much appreciated 

Hi,

CC3000 does not support AP mode. You cannot set default gateway for CC3000.

Thanks & Regards,

Raghavendra