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CC3200: Problem with connecting to WIFI

Pradeep Raaj k
Prodigy 90 points
Part Number: CC3200
Other Parts Discussed in Thread: ENERGIA, , UNIFLASH

Hi. I have 2 cc3200. I am facing issues with connecting to wifi .cc3200 is not connecting to the wifi for the simple sketch in energia "it gives the ".Other one connects without any problem.The program is uploaded but its keep on trying to connect ti the internet.The output seems to be"..........................................................keeps on continuing".What is be the problem and how to rectify it.Please help.

  • 0
    Guru 39650 points

    Hi,

    Question related to Energia is better to ask at Energia forum. There you have a better chance to be your question read by proper experts. Energia as a community project is not supported by TI at this forum.

    Few hints and questions:

    • Just I want to know if I understand correctly. You have two CC3200 LaunchPads. You are using exact same sketch but one LP is able to connect but second LP is not. Right?
    • Make sure what jumpers at both LaunchPads are at same positions. You may to provide here photo(s) of your LaunchPad with jumpers configuration.
    • Make sure that you are using same (latest) ServicePack at both LP. ServicePack can be uploaded by Uniflash software.
    • What versions of LaunchPad do you you?
    • Make sure that you have set proper SSID and password inside your sketch.
    • CC3200 supports 2.4GHz only. Please check that you not have set 5GHz AP.
    • You may to share your sketch.

    Before you insert code or photo please use "Insert Code, Attach Files and more..." feature and code syntax highlighter.

    Jan

  • 0
    TI__Mastermind 22935 points
    Thanks for the help Jan.

    Pradeep, here is an additional e2e to back what Jan is saying:

    e2e.ti.com/.../576053

    Jesu
  • 0 in reply to Hnz
    Prodigy 90 points
    I'm using all correctly and the jumper positions are all correct. I flashed with the latest firmware and even programmed with out of box program. For that program too, it's connecting for less than 15 sec in phone and WiFi of cc3200 is not showing up.
  • 0 in reply to Pradeep Raaj k
    Guru 79905 points
    Hi,

    I am sorry, but I don't understand your answer. Please answer my points mentioned above.

    Jan
  • 0 in reply to Hnz
    Prodigy 90 points
    yes sir, i am using 2 cc3200. one is working without any problem. i flashed the other one with service pack and uploaded the out of box demo code into it. The wifi hotspot of the cc3200 is showing up a very weak signal in the order of 0.03kbps to 0.04kbps. It is harder for the mobile to connect it to the cc3200's wifi. Im keeping the mobile very nearer to the cc3200 around 10 to 20 cm. I am unable to figure out what i am proceeding wrong. Is that hardware problem or software? I can able to upload blink sketch from energia without any problem in energia ide.
    And i am sure the jumper settings that i use is correct.I dont know how to proceed further. Thank for your response sir.
  • 0 in reply to Pradeep Raaj k
    Guru 79905 points
    Hi,

    Please pride hi-res photo of your problematic LaunchPad. I want to check that your antenna path is correct.

    Also you can try this:
    - connect by Uniflash and format sFlash (important)
    - upload latest ServicePack, make sure that update was done properly
    - try your example with WiFi again

    Jan
  • 0 in reply to Jan D
    Prodigy 90 points

    Sorry sir my image quality is not good. Please do bear with my image.

  • 0 in reply to Pradeep Raaj k
    Guru 39650 points
    Hi,

    Your jumpers configuration and antenna path at LaunchPad looks OK. Please try steps with formatting sFlash stated above. In case you will not be able solve issue by these steps, then it looks that you have hardware problem with your LaunchPad. Additional debug step may to be use CCS and JTAG and see return codes from sl_ API. Do you see anything suspicious when you run OOB example in UART console? Can you share console log from OOB example?

    Jan
  • 0 in reply to Hnz
    Prodigy 90 points
    I am new to CCS sir, so please give a clear step by step instructions sir. I formatted the cc3200 with uniflash, uploaded the latest service pack and then "open configuration", then selected the "out of box.ucf" file and clicked program. Then the out of box demo was flashed and jumper setting is kept accordingly. I can see the wifi hotspot of cc3200 in my mobile phone , with very low signal strength with speed rate 0.03 to 0.04kbps. Then after sometime mobile could not find the network.Thanks for our patience sir.
  • 0 in reply to Pradeep Raaj k
    Guru 39650 points
    Hi,

    Unfortunately I am not able provide you exact steps how to use CC3200 with CCS and use JTAG to debug issues. Some information how start with CCS and CC3200 you find here:
    - www.ti.com/.../swru369d.pdf
    - training.ti.com/simplelink-wi-fi-cc3200-project-0-code-composer-studio-ide
    (unfortunately some information are slightly outdated)

    But as first step you should to look to UART console at OOB example. Please provide this log to see if there is not anything suspicious.

    Jan