CC2650: Custom PCB-CC2650 not advertising

Dnyaneshvar s

Intellectual 501 points

Part Number: CC2650

Hello,

we have designed our Custom PCB for CC2650.

BLE SDK 2_02_07_06

CCS7.4

Compiler TI v5.2.6

We had raised ticket last time for help regarding this. https://e2e.ti.com/support/wireless-connectivity/bluetooth-group/bluetooth/f/bluetooth-forum/1102446/cc2650-custom-cc2650-board-bluetooth-not-advertising/4119620?tisearch=e2e-sitesearch&keymatch=%20user%3A508658#4119620.

So we submitted design at https://www.ti.com/tool/SIMPLELINK-2-4GHZ-DESIGN-REVIEWS .

Our PCB design is reviewed by TI team. (By BLE HW Applications engineer Texas Instruments).

We have done all the necessary changes in our PCB as suggested by reviewing team.

NOW, The problem is our new PCB is also not visible when searched as Bluetooth from Android apps like BLE SCANNER or LIGHTBLUE.

"Project Zero" code is used for testing.

I am debugging with Log_info0("xxxxxxx");

MCU is not executing API function

"GAPRole_SetParameter(GAPROLE_SCAN_RSP_DATA, sizeof(scanRspData), scanRspData);"

I have attached images of debug session.

static ICall_Errno ICall_primService(ICall_FuncArgsHdr *args)
{
  if (args->func >= sizeof(ICall_primSvcFuncs)/sizeof(ICall_primSvcFuncs[0]))
  {
    return ICALL_ERRNO_INVALID_FUNCTION;
  }
  return ICall_primSvcFuncs[args->func].func(args);
}

static ICall_Errno ICall_primService(ICall_FuncArgsHdr *args)

This function returns

ICALL_ERRNO_INVALID_FUNCTION;

then again control comes back to the start point of code execution

static void ProjectZero_init(void)

where my debuge consol again prints the

Log_info0("Initializing the user task, hardware, BLE stack and services.");

Please guide me...

over 1 year ago

0 Nima over 1 year ago

TI__Expert 3675 points

Hello,

One way to test this issue is using our host_test project and BTool. Here are the instructions for setting up host_test in the peripheral role and the commands needed to start advertising using BTool. You can find BTool in C:\ti\<sdk installation>\tools\ble5stack\btool.

Best,

Nima

0 Dnyaneshvar s over 1 year ago in reply to Nima

Intellectual 501 points

Hello Nima,

Thank you for your response.

My team assembled another CC2650 PCB.

When I tested , This CC2650 PCB's Bluetooth can successfully advertise.

I can see it's presence when searched in mobile application.

But when I try to connect with it's Bluetooth, I am not able to connect.

I have attached Uart log details in image.

Please guide

0 Nima over 1 year ago in reply to Dnyaneshvar s

TI__Expert 3675 points

Hello,

Do you have access to a Bluetooth sniffer (for example, an Ellysis)? If so please sniff the Bluetooth packets for this and provide the log.

Best,

Nima

0 Dnyaneshvar s over 1 year ago in reply to Nima

Intellectual 501 points

Hello Nima,

We don't have Ellysis but we have with us (Extra launchpads-we haven't used them yet)

Launchpad LAUNCHXL-CC1352P-2*: 868/915 MHz up to 14 dBm, 2.4 GHz up to 20 dBm
Launchpad LP-CC1352P7-4: 433 MHz up to 13 dBm, 2.4 GHz up to 10 dBm
Can we use any one of this as Bluetooth sniffer?

0 Nima over 1 year ago in reply to Dnyaneshvar s

TI__Expert 3675 points

Hello,

The LAUNCHXL-CC1352P-2 can run the host_test project for BTool. You can connect this launchpad to BTool and have it act in the central role and have the peripheral advertise and connect to the launchpad. Please send the log that BTool provides.

Additionally, Section 12.5.4 of CC13xx/CC26xx Hardware Configuration and PCB Design Considerations (Rev. F) may be useful in why the device is advertising but not able to form a connection.

Best,

Nima

+1 Dnyaneshvar s over 1 year ago in reply to Nima

Intellectual 501 points

Hello Nima,

Thank you very much for the help you provided to us.

Root cause of problem was the PCB soldering issue.

Our problem is solved.

Thank you

Dnyaneshvar

Bluetooth®︎

Bluetooth forum

CC2650: Custom PCB-CC2650 not advertising