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Original question:

CC3200: CC3200 EN300 328 V2.1.1 adaptivity test failed

CC3235MODASF: CC3235 EN301 893 5G mode adaptivity test failed

user6484902
Prodigy 100 points
Part Number: CC3235MODASF


We are right now in the certification of our CC3235 cevice and the EN301 893 adaptivity test failed. Adding the interference signal the EUT doesn't stop trasmissions.

I want to know how to test adaptivity test. I see the Post

https://e2e.ti.com/support/wireless-connectivity/wifi/f/968/p/634085/2349971?tisearch=e2e-sitesearch&keymatch=Adaptivity%2520(Channel%2520Access%2520Mechanism)#2349971

There is talk about entering the Test mode, which is available in radiotool, but it also says that you cannot use radiotool and you need to connect to the AP, so I don’t quite understand how to test.

Happy for any hints!

Thank you

  • 0
    TI__Mastermind 28285 points

    Hi user,

    To perform the adaptivity testing, you need the device to be in more of a functional mode - Radio Tool can't accomplish this for you. To run this test, I would take the network terminal example, and make one modification - Change the UDP Send function to send forever with a while(1). 

    With this image flashed, you would turn the device on, configure it to connect to an AP using the UART terminal, and then start sending data by using the UDP command. 

    In this mode you should pass Adaptivity.

    BR,

    Vince 

  • 0 in reply to Vincent Rodriguez
    Prodigy 100 points

    Hi, 

    I have three questions

    1、I have to modify the program myself,? Have no existed firmware to burn and test? right?

    2、why the test fails when the package is issued on the AP side？(Note: After the board is connected to the AP, there is no human operation.)

    3、Is it only possible to pass the adaptive test through the continuous way of sending out the package?

  • 0 in reply to user6484902
    TI__Mastermind 28285 points

    Hi,

    1. Yes that is correct

    2. Unsure what you mean here. Are you using RadioTool? 

    3. You can't pass adaptivity using Radio Tool.

    BR,

    Vince

  • 0 in reply to Vincent Rodriguez
    Prodigy 100 points

    So far I have passed the adaptive test.

    The method is to delete the profile configuration and turn off the automatic reconnection function with the instruction, and disable the parameter scanning function. In this step, the wifi can be disconnected in case of interference, but the disconnected line is delayed, which still fails to pass the test.

    Then the country code was changed from EU to DE, and the disconnect delay was improved and passed the verification mechanism test

    I have two questions

    1. Why is there a drop-off delay when modifying the country code will make a big difference

    2. Must Profile be deleted and auto reconnect turned off for adaptive testing

  • 0 in reply to user6484902
    TI__Mastermind 28285 points

    Hi User,

    If you need to simulate a disconnect, you can just call wlanDisconnect() API instead of deleting the profile. I would say you don't need to delete the profile. Can you walk me through the steps required for the test you are trying to run?

    BR,

    Vince 

  • 0 in reply to Vincent Rodriguez
    Prodigy 100 points

    Hi，

    l do not want to simulate disconnection, but do an adaptive test in 5G mode. When the test mechanism continuously issues packets and then sends interference signals, the wifi should be disconnected or unresponsive, but the communication is still normal. I would like to know why?

  • 0 in reply to user6484902
    TI__Mastermind 28285 points

    Are you sure you are generating a 5G interference also connected via 5GHz network?

    BR,

    Vince

  • 0 in reply to Vincent Rodriguez
    Prodigy 100 points

    Yes.

    The wifi module is the STA model, now I changed the country code to DE can through 11a, 11n  cannot pass, should pass in theory.

    I don't know why have this kind of phenomenon, how to solve, this test affect whether we use this module, hope to be able to solve it.

  • 0 in reply to user6484902
    TI__Mastermind 28285 points

    Hi,

    When you say the connection is still normal, is the AP still getting UDP packets and acking them? Are you sure the interference generator is setup correctly?

    BR,

    Vince