LP-EM-CC2340R5: Issue in connecting peer devices when host test program sdk v8.40 is done in CC2340R5

Hello,

Thanks for reaching out! 

Ignyte_Techie said:

Q1: What could be causing this automatic disconnection when using BTool, and how can we resolve it?See Log for your reference

Even though this isn't the expected behavior, this could be happening due to a number of reasons. Please answer the questions below to help me in pinpointing the issue:

1. Could you possibly provide a packet sniffer log?
2. What time of device are you attempting to connect to?
3. Is your device running the host_test hex file that is provided in the SDK?

Ignyte_Techie said:

Q2: Is there any way to detect the RSSI value, MAC address, and Tx Power of a scanning central device that sends a scan request without initiating a connection?

Unfortunately, the ble spec does not allow any information regarding this matter. According to the BLE v5.4 core specification (Vol 6, Part B, Section 2.3.2.1):

"The Payload consists of ScanA and AdvA fields. The ScanA field shall contain the scanner’s public or random device address as indicated by TxAdd. The AdvA field is the address of the device to which this PDU is addressed. The AdvA field shall contain the advertiser’s public or random device address as indicated by RxAdd. Note: These PDUs do not contain any Host Data."

I hope this answers your second question! As for the first question, I'll be waiting for you to provide some more info. We'll get this resolved soon!

Best Regards,

Tarek

Thanks for your response :- 

1. Could you possibly provide a packet sniffer log?     --We do not have sniffer ,although i am attaching BTool log and Error 0x3E is there[some update our device does not have any 32kHz external crystal, so it might see like sleep accuracy]
2. What time of device are you attempting to connect to? --> When we have scanned for 10 sec and then initiate Gap connection
3. Is your device running the host_test hex file that is provided in the SDK? --> Yes ,no change by our end [Check with Version 7.4,8.10,8.40]

Some Question : -

Q1 :Can you please comment how scan window, and scan interval can be increased and can it help to sync sleep inaccuracy because of Internal RC clock? 

Q2:Can you please explain ,in how much time connection should be completed after initiation of connection and on what factors this connection time depends.

This is problem is more visible with CC2340R5 LP board and I have tried to connect with different -2 board .[When using Launch xl-cc2640r2 Rev 1.0 and HCIExt_SetSCA cmd [opcode 0xFC0D] is set with 400 ppm our board are able to connect, it seems because of this relaxation  there is more room to connect even without external crystal of 32kHz -->If this is true please explain it in depth or any document that provide detailed information will be helpful]

Here is Time wise stamp log are there 

[1] : <Tx> - 01:51:58.065
-Type : 0x01 (Command)
-OpCode : 0xFE62 (GapInit_connect)
-Data Length : 0x0A (10) byte(s)
PeerAddrType : 0x00 (0) (PEER_ADDRTYPE_PUBLIC_OR_PUBLIC_ID)
PeerAddr : 0C:AF:5A:00:00:46
InitiatingPhy : 0x01 (1) (
INIT_PHY_1M)
Timeout : 0x0000 (0)
Dump(Tx):
0000:01 62 FE 0A 00 46 00 00 5A AF 0C 01 00 00 .b...F..Z.....
--------------------------------------------------------------------
[2] : <Rx> - 01:51:58.081
-Type : 0x04 (Event)
-EventCode : 0x00FF (HCI_LE_ExtEvent)
-Data Length : 0x06 (6) bytes(s)
Event : 0x067F (1663) (GAP_HCI_ExtentionCommandStatus)
Status : 0x00 (0) (SUCCESS)
OpCode : 0xFE62 (GapInit_connect)
DataLength : 0x00 (0)
Dump(Rx):
0000:04 FF 06 7F 06 00 62 FE 00 ......b..
--------------------------------------------------------------------
[3] : <Rx> - 01:51:59.597
-Type : 0x04 (Event)
-EventCode : 0x00FF (HCI_LE_ExtEvent)
-Data Length : 0x14 (20) bytes(s)
Event : 0x0605 (1541) (GAP_EstablishLink)
Status : 0x00 (0) (SUCCESS)
DevAddrType : 0x00 (0) (ADDRTYPE_PUBLIC)
DevAddr : 0C:AF:5A:00:00:46
ConnHandle : 0x0000 (0)
ConnRole : 0x08 (8) (
Central)
ConnInterval : 0x0050 (80)
ConnLatency : 0x0000 (0)
ConnTimeout : 0x07D0 (2000)
ClockAccuracy : 0x00 (0)
Dump(Rx):
0000:04 FF 14 05 06 00 00 46 00 00 5A AF 0C 00 00 08 .......F..Z.....
0010:50 00 00 00 D0 07 00 P......
--------------------------------------------------------------------
[4] : <Tx> - 01:51:59.597
-Type : 0x01 (Command)
-OpCode : 0x2022 (HCI_LE_SetDataLength)
-Data Length : 0x06 (6) byte(s)
Handle : 0x0000 (0)
TxOctets : 0x00FB (251)
TxTime : 0x0848 (2120)
Dump(Tx):
0000:01 22 20 06 00 00 FB 00 48 08 ." .....H.
--------------------------------------------------------------------
[5] : <Info> - 01:51:59.659
Device Connected
Handle = 0x0000
Addr Type = 0x00 (ADDRTYPE_PUBLIC)
BDAddr = 0C:AF:5A:00:00:46
--------------------------------------------------------------------
[6] : <Rx> - 01:51:59.643
-Type : 0x04 (Event)
-EventCode : 0x000E (HCI_CommandCompleteEvent)
-Data Length : 0x06 (6) bytes(s)
Packets : 0x01 (1)
OpCode : 0x2022 (HCI_LE_SetDataLength)
Status : 0x00 (0) (SUCCESS)
Handle : 0x0000 (0)
Dump(Rx):
0000:04 0E 06 01 22 20 00 00 00 ...." ...
--------------------------------------------------------------------
[7] : <Info> - 01:52:00.175
Device Disconnected
Handle = 0x0000
Addr Type = 0x00 (ADDRTYPE_PUBLIC)
BDAddr = 0C:AF:5A:00:00:46
--------------------------------------------------------------------
[8] : <Rx> - 01:52:00.175  --->
-Type : 0x04 (Event)
-EventCode : 0x00FF (HCI_LE_ExtEvent)
-Data Length : 0x06 (6) bytes(s)
Event : 0x0606 (1542) (GAP_TerminateLink)
Status : 0x00 (0) (SUCCESS)
ConnHandle : 0x0000 (0)
Reason : 0x3E (62) (FAILED_TO_ESTABLISH)
Dump(Rx):
0000:04 FF 06 06 06 00 00 00 3E ........>
--------------------------------------------------------------------

sorry but it does not solve my issue although  my setting are default one provided by BTOOL exe . Also I tried to increase connection interval and latency to maximum still same issue(0x3E) i think these setting play roles after connection establishment. Could be find out any other reason Note :- When i am using  Launch CC2640R2 board and setting ppm value using  HCI_EXT_SetSCACmd(). to 400 ppm then it is connecting and same setting done in cc2340r5 Lp board then same issue as mention above 

Hello,

Just to confirm, did you flash the hex file I provided onto your board and it still did not work?

Also, what type of device are you attempting to connect to?

Best Regards,

Tarek

Yes i did flash that file using uniflash and same result

I am trying to connect cc2340r5 4by4 chip that does not have have external crystal, this device connect  easily with phone app and Cc2640R2 Launch board when I set ppm value with  HCI_EXT_SetSCACmd() to 400 ppm

Same I tried doing with Lp board of cc2340r5 which has been flash with your file too but it give 0x3E error

Hello,

Can the CC2340R5 connect to other devices?

Best Regards,

Tarek

Yes it can connect with Launch pad of cc2340r5 when programmed with simple peripheral hex file file retrieved from sdk

Hello,

Sorry for the delay! Can you please provide the connection parameters for both devices?

Best Regards,

Tarek

<Rx> - 01:51:59.597

-Type : 0x04 (Event)

-EventCode : 0x00FF (HCI_LE_ExtEvent)

-Data Length : 0x14 (20) bytes(s)

Event : 0x0605 (1541) (GAP_EstablishLink)

Status : 0x00 (0) (SUCCESS)

DevAddrType : 0x00 (0) (ADDRTYPE_PUBLIC)

DevAddr : 0C:AF:5A:00:00:46

ConnHandle : 0x0000 (0)

ConnRole : 0x08 (8) (

Central)

ConnInterval : 0x0050 (80)

ConnLatency : 0x0000 (0)

ConnTimeout : 0x07D0 (2000)

ClockAccuracy : 0x00 (0)

Dump(Rx):

0000:04 FF 14 05 06 00 00 46 00 00 5A AF 0C 00 00 08

Hello,

I have been trying to recreate the issue on my end but I haven't been able to. Could you attempt to increase the Tx power and see if that results in a successful connection?

Best Regards,

Tarek

Dear, both board are very near to each other, and it fails when HCI set length Is sent after connection establishment,my board is 4x4 and without any outer crystal 

Let's move this thread to email, so that we can speed up the debug process. Please provide this thread to the FAE in charge of your account so that we can continue the debug process.

Best Regards,

Tarek