CC2640R2F: MSP432 + CC2540R2F Dual MCU Advertise in Connection

Part Number:CC2640R2F

Hello,

I am using MSP432 + CC2640R2F in dual MCU solution with CC2640R2F as Bluetooth Simple Network Processor.

For my application, I need to broadcast GAP advertise packet when the device is in connection with other GAP master.
I am still unsuccessful to broadcast the advertise packet when device is in connection.

Here is the outline on how I did it:

• Set array as buffer for advertise packet when not in connection
• Set array as buffer for advertise packet when in connection
• Star advertise

So here is a snippet of the code:

static void NwkStateUpdateAdvertise (void)
{
    ...

    /* prepare advertise packet for not in connection */
    ...
    SAP_setParam(SAP_PARAM_ADV, SAP_ADV_DATA_NOTCONN,
                 (uint16_t)adv_data_len, Nwk_AdvertConnData);

    /* prepare advertise packet for in connection */
    ...
    SAP_setParam(SAP_PARAM_ADV, SAP_ADV_DATA_CONN,
                 (uint16_t)adv_data_len, Nwk_AdvertNonConnData);
    
    ...
}

static void NwkStateConnected (void)
{
    ...

    /* enable advertising and wait for response from NP */
    SAP_setParam(SAP_PARAM_ADV, SAP_ADV_STATE, sizeof(enable_adv), &enable_adv);
    Event_pend(Nwk_Event, NWK_EVT_NONE, NWK_EVT_ADV_ENB, 500);

    ...
}

These two functions are state machine. NwkStateUpdateAdvertise will call the SAP library to prepare advertise packet for not in connection and for in connection. I use different array buffer since the contents of the advertise packet are different.
Then on NwkStateConnected which is a state when the device is in connection, I call the SAP library to start advertising.

I read from Simple Network Processor API Guide at section 9.3.2 SNP Set Advertisement Data (0x43):
" When not in a connection, if advertisement is requested, the advertisement data stored in the non-
connected state buffer will be advertised.
When in a connection, if advertisement is requested, the advertisement data stored in the connected
state buffer will be advertised. "

1. I believe I am not doing it correctly, is there any advice or suggestion to correct this?

Thank you