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CC2650MODA: Simple Central on CC2650MODA can not receive data well

Prodigy 70 points

Replies: 2

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Part Number: CC2650MODA

Hi all,

I am running simple central on CC2650MODA.

I want to connect to a peripheral device (which is also a CC2650MODA using simple peripheral example) and receive notify.

Everything work fine if I run the central code on LaunchPad. (So I am sure that peripheral should be no problem)

When I move to MODA, I can receive few data. (seems like the notify stop with some reason)

I use my sniffer to check this problem, and find that notify package is weird if using MODA central.

Here are the sniffer screenshot of central code on LaunchPad

I had used data length extension, so the notify package is large.

However when the same code (PIN assignment is different of course) running on CC2650MODA, the notify become weird.

Here is the package on sniffer.

Anyone have idea about this issue?

I can provide sniffer screenshot of "exchange MTU event", and "update connection param" if that would help. 

Thanks.

  • Hi Alan,

    I believe the issue is that the SmartRF Packet Sniffer you are using only supports Bluetooth 4.0 features. The data length extension feature is available on Bluetooth 4.2 feature set and after. Likely the sniffer program is not interpreting the packets correctly when DLE is enabled.

    Are there any issues with the application behavior when you move to the MODA? 

    Regards,
    Michael

  • In reply to Michael Hollister:

    Hi Michael,

    I think the problem is that my CC2650MODA did not enable DLE successfully.

    That would be another issue, I will ask a related question.

    Thanks for your reply.

    Alan

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