CC2652P: Can BLE tx adv data in non-adv channel( not 37, 38 , 39)?

Yingtao,

I will assign an expert that will be able to help you.

-Luis

Agree with Clément. I just point out the possibility and it still depends on if this fits yingtao's requirement.

Thanks to all of you. The information above helps me a lot.

Let me describe my task with more details.

My own target board uses TI 15.4stack, including scanReq, dataReq, beaconNotifyInd APIs and so on.

The 15.4 stack works fine.

Now my team need to develop BLE AOA, the AOA transmit terminal is based on current project (CC2652P, including TI 15.4 stack).

And, we would like to

1) use connectionless AOA;

2) put CTE into BLE4 PDU;

3) use BLE channel 0-36.

The reason using channel 0-36 is that there will be a lot of noise data in adv channel 37,38 and 39. Channel 0-36 is much clear.

So I have made an experiment.

I use 3 RF Cmd to tx BLE data:

1) RF_cmdBle5RadioSetup_bt5le1madvnc_0

2) RF_cmdFs_bt5le1madvnc_0

3) RF_cmdBleAdvNc_bt5le1madvnc_0

Using these 3 RF cmd, I can tx BLE data successfully in any channel(0-36, also 37,38,39 can work). I can observe data on CC1352P-2 Development Kit launchpad.

However, after I use these 3 RF cmd, 15.4 stack fails. So, I did some recover job to restore 15.4 parameters as possible as I can.

To be specific, after each time tx BLE data, I do these things to recover 15.4:

1) use RF_cmdRadioSetup_ieee154

rfHandle = RF_open(&rfObject, &RF_prop_ieee154, (RF_RadioSetup*)&RF_cmdRadioSetup_ieee154, &rfParams);
RF_close(rfHandle);

2) restore 15.4 channle page and channel

ApiMac_mlmeSetReqUint8(ApiMac_attribute_channelPage, 0);
ApiMac_mlmeSetReqUint8(ApiMac_attribute_logicalChannel, my_15_4_channel);

After I do these 2 things. I can use dataReq, dataInd to transmit and receive 15.4 data successfully.

But, I can not use scanReq still. If I call scanReq, main_excHandler triggered, and system reset.

So, what do you and your team recommend me to do to achieve our AOA task meanwhile 15.4 stack can still work?

Thanks a lot.

Hi,

In SDK v4.40, does connection-less AOA's channel has any limitations?

Hi,

Per specifications, connectionless-AoA uses periodic advertisement. It means CTEs are sent on connection channels (channel 0 to 36).

Regards,

Thanks, our AOA receiver uses other manufacturer's scheme. Only transmitter uses TI's product.

On transmitter, CC2652P uses the above 3 RF cmd to tx BLE data. The receiver (Not TI's product) makes IQ sampling, phase difference calculating.

This AOA demo system has been running successfully, and we have got the angel.

So, in fact, our transmitter just need to tx BLE data with these condition:

1) non connection;

2) put CTE into BLE4 PDU (including anti-whitening);

3) any channel.

These all have already been completed, and AOA system has been achieved.

Now, only one thing need to be resolved: 15.4 stack fails.

So, based on the situation above, what do you recommend me to do to make BLE data and 15.4 stack work fine both?

Thank you.