CC2652R: Simple Broadcaster enable advertising on coded phy

Munan Xu

Part Number: CC2652R
Other Parts Discussed in Thread: SYSCONFIG

Hello,

Similar to my question about project zero, I tried to simplify and use the Simple Broadcaster example to just enable advertising on the coded phy. Again here I just changed the advertisement type to "extended".

First I was getting an invalid parameter error when trying to create the advertisement set because simple broadcaster changes the settings created in sysconfig. On line 407:

        #ifndef BEACON_FEATURE
          advParams1.eventProps = GAP_ADV_PROP_SCANNABLE | GAP_ADV_PROP_LEGACY;
        #else
          advParams1.eventProps = GAP_ADV_PROP_LEGACY;
        #endif // !BEACON_FEATURE

I commented out line 408 and this resolved the issue with invalid parameters.

The second error I encountered is very similar to my project zero issue I encountered where an error was returned when loading the GAP Scan RSP data. This time the error code returned is 0x01 for invalid parameter. Again, am I missing something in the configuration of scan response that's preventing the code from running correctly?

The final comment I have on this example is that the application writes to the display terminal (lines 391 to 401) before the advertisement set is enabled. This caused me to spend a long time thinking the simple broadcaster was advertising and that I was somehow misconfiguring host test. This output should really occur after GapAdv_enable on line 436.

Thanks in advance and look forward to your suggestions!

Regards,

Munan

over 4 years ago

0 Munan Xu over 4 years ago

TI__Expert 4950 points

This is on SDK 4.20 by the way.

0 Ammar N over 4 years ago in reply to Munan Xu

TI__Mastermind 25810 points

Thank you for the feedback Munan. I'll assign this to an expert to comment.

0 Jenny T over 4 years ago

TI__Expert 4435 points

Hi Munan,

Thank you for the detailed post. Regarding your second error, to better help debug the issue can you please post the exact line of code and function where the GAP Scan RSP data is called?

In regards to the premature display of the advertising to the terminal issue, I will try recreating this. Thank you for bringing this to our attention.

Best Regards,

Jenny

0 Munan Xu over 4 years ago in reply to Jenny T

TI__Expert 4950 points

Hi Jenny,

Thanks for the response, the function returning this error for me is GapAdv_loadByHandle() on line 424 in SimpleBroadcaster_processGapMessage() from simple_broadcaster.c

        // Load scan response data
        status = GapAdv_loadByHandle(advHandleLegacy, GAP_ADV_DATA_TYPE_SCAN_RSP,
                                     sizeof(scanResData1), scanResData1);
        SIMPLEBROADCASTER_ASSERT(status == SUCCESS);

Incidentally, I commented these lines out and the application did successfully start advertising on the coded PHY.

Munan

0 Jenny T over 4 years ago in reply to Munan Xu

TI__Expert 4435 points

Hi Munan,

Thanks for clarifying this. I took a look at the function GapAdv_loadByHandle to locate why the returned status would be invalid parameter. I was looking at the returns on the API and discovered that these are the following possible returns:

https://software-dl.ti.com/simplelink/esd/simplelink_cc13x2_26x2_sdk/3.30.00.03/exports/docs/ble5stack/ble_user_guide/doxygen/ble/html/group___gap_adv.html#ga1bbb75a51200d38ed8f760d274c8b8c0

I wanted to reverify if this function is returning 0x01.

Best Regards,

Jenny

0 Munan Xu over 4 years ago in reply to Jenny T

TI__Expert 4950 points

Hi Jenny,

Sorry for the delay here, I just ran my simple broadcaster example again and actually I'm getting a different return code 0f 0x1E:

I also notice that pMsg and status are both at address R0 which doesn't seem like it should be the case. Is this something you can replicate on your side?

Regards,
Munan

0 Jenny T over 4 years ago in reply to Munan Xu

TI__Expert 4435 points

Hi Munan,

Thank you for posting a picture of the callstack! This is very helpful information as I don't believe bleInternalError is a common error that should occur. I saw that you said in your original post you made some modifications to the simple_broadcaster.syscfg file. I am trying to reproduce it at the moment but am unsuccessful at reaching the point you are seeing within simple_broadcaster.c.

Can you describe all the changes you have made within syscfg or within the code base? Also do you automatically reach this point within the code or are there additional steps you take?

To shed more light on the bleInternalError, I believe this could be caused by multiple reasons that you can verify:

- If your memory capacity exceeded.

- May be related to this known issue regarding disabling advertisiment set 0 when connected on LE Coded PHY (https://e2e.ti.com/support/wireless-connectivity/bluetooth/f/538/t/778168) .

Thanks!

Best Regards,

Jenny

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CC2652R: Simple Broadcaster enable advertising on coded phy