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BOOSTXL-CC3135: MSP-EXP432P401R with CC3135BoosterPack: problem with network_terminal example

Siemin
Prodigy 240 points
Part Number: BOOSTXL-CC3135
Other Parts Discussed in Thread: CC31XXEMUBOOST, UNIFLASH, CC3135, CC3235SF, CC3120

Hi, 

We are testing CC3135 operations with MSP432P401R launchpad. We attached the CC3135 BoosterPack on MSP432 Lauchpad.

Here are hardware and software we used:

Hardware: 1. Boostxl-CC3135 Rev A

                  2. MSP-EXP432P401R Rev 2.1

                  3. CC31XXEMUBOOST Rev 3.0

Software: 1. CCS  10.1.1

                2.  UniFlash 6.1.0

                3. simplelink_sdk_wifi_plugin_4_20_00_10

                4. Example: network_terminal

I have a similar problem with https://e2e.ti.com/support/wireless-connectivity/wifi/f/968/t/933500?keyMatch=WIFI%20PLUGIN&tisearch=Search-EN-support. I flashed the servicepack and user files into the CC3135 again used Boostxl-CC3135 + CC31XXEMUBOOST following the steps on http://software-dl.ti.com/simplelink/esd/plugins/simplelink_sdk_wifi_plugin/4_20_00_10/exports/docs/users_guide_simplelink_sdk_wifi_plugin.html. 

I imported the network_terminal project in example folder(D:\TI\simplelink_sdk_wifi_plugin_4_20_00_10\simplelink_sdk_wifi_plugin_4_20_00_10\examples\rtos\MSP_EXP432P401R\demos\network_terminal\tirtos\ccs) and started in debug mode in CCS. However the same error I received from the serial port session as before and error msg was printed on terminal shown in log.pdf.

 log.pdf

As the log showing above, the command MSP432 received always lost some packets and which lost was/were in random. Like wlanconnect command, it was often recieved as "wlanconect" which will be processed as an invalid command. If I add a "n" and sent "wlanconnnect" that will be recieved as a correct command, but the following packet(s) of parameters will still be lost.

I changed another MSP432 LaunchPad and the result is the same. 

I tested the serial port session using CC3235SF LaunchPad with network_terminal project in example folder(D:\TI\simplelink_cc32xx_sdk_4_30_00_06\examples\rtos\CC3235SF_LAUNCHXL\demos\network_terminal\tirtos\ccs), no packet lost and the CC3235 connected our router succesfully. 

So, whether there is something I missed or did wrong?

Regards,

Siemin.

 

  • 0
    TI__Mastermind 22935 points

    Hi Siemin,

    I'm not sure i understand the issue. You are typing commands via UART terminal and it's not getting sent properly? Like sometimes characters are missing? What terminal program are you using?

    Jesu

  • 0 in reply to Jesu
    Prodigy 240 points

    Hi Jesu,

    Thank you for your attention!

    Maybe I didn't expressed my issue clearly.

    The following figure is partial screenshot of the log.pdf. "OUT" in blue circle is the command I sent via UART terminal, "IN" in green circle is the data the device recieved. As you can see, there are some characters lost. 

    I used SSCOM UART terminal to send command and also tried other terminals such as Serial Debug Assistant from Microsoft Store as shown in the picture below. Unfortunately, the test results are all the same even if I tested on another PC.

    I'm sure the UART terminal sent data properly. I tested the UART terminal many times using CC3235SF LaunchPad with network_terminal project in example folder(D:\TI\simplelink_cc32xx_sdk_4_30_00_06\examples\rtos\CC3235SF_LAUNCHXL\demos\network_terminal\tirtos\ccs), no character lost and the CC3235 connected our router succesfully.

    The following figure is my test result.

    I want to know what caused the loss of characters and how to solve it. 

    I'm looking forward to your reply.

    Regards,

    Siemin.

  • 0 in reply to Siemin
    TI__Mastermind 22935 points

    Hi Siemin,

    It is odd you get issues with CC3135 but not with CC3220. I just tested myself with an MSP432 and CC3120 and don't have issues. You are using CC3135 booster pack and MSP432 launchpad right?

    1. Have you checked the settings in your terminal program?
    2. Maybe try a different terminal program such as tera term or putty?
    3. What MSP432 SDK version are you using?

    Jesu

  • 0 in reply to Jesu
    Prodigy 240 points

    Hi Jesu,

    Glad to recieve your reply.

    I do have issues with CC3135 connected on MSP432 LaunchPad.

    As the suggestions you mentioned,

    1. I have checked the settings in my terminal program, no problem with the connection settings.

    2. I tried about 3 kinds of UART terminal, the results are all the same, but it's OK testing CC3235 LaunchPad with the same example in CC3235 SDK.

        We tried to reduce the baud-rate from 115200 to 9600, it seems to be OK. But there will still be lost of 1~2 characters if the data you send more than 100 (limited to 128 characters).

        So, I think it isn't the problem of terminal program.

    3.The MSP432 SDK version I'm using is the lastest 3.40.01.02 from https://www.ti.com/tool/download/SIMPLELINK-MSP432-SDK. If not, please notice me with the link. Thank you.

    Thank you again for your reply!

    Best regards,

    Siemin

  • 0 in reply to Siemin
    TI__Mastermind 22935 points

    Hi Siemin,

    This is odd. I am using the same SW as you and don't get this issue. This could be a UART driver issue so I will transfer this thread to the MSP team and maybe they can help you further.

    Jesu

  • 0 in reply to Jesu
    Prodigy 240 points

    Hi Jesu,

    Thanks for your kindly help!

    No matter what, I didn't find any problems with other functions. I will test CC3135 at 9600 baud-rate first.

    Best regard,

    Siemin

  • 0 in reply to Siemin
    TI__Mastermind 32665 points

    Hi Siemin

    Do you have a Saleae?  Or other logic analyzer to capture the waves? 

  • 0 in reply to Gary Gao
    Prodigy 240 points

    Hi Gary,

    I have no logic analyzer as Saleae. And there is not enough time for me to analyse the issue considering my urgent work in progress. So sorry about that.

    If you have any new progress, please notice me. I would appreciate it very much!

    Best regards,

    Siemin

  • 0 in reply to Siemin
    TI__Mastermind 32665 points

    It is better to see the waves to see the problem is happen at which part.