CC2652R: GAP_LINK_TERMINATED while reading

Sen Senthuran

Part Number: CC2652R

Hi,

When we perform GATT_DiscAllChars, GATT_DiscAllCharDescs & GATT_DiscAllPrimaryServices, we always receive GAP_LINK_TERMINATED event after successful read. At the end of the read process, we get this error message and disconnection always. How we can debug this issue?

Tested with SDK 5.10.00.48 as well as 5.20.

GATT_DiscAllChars: 01 B2 FD 06 00 00 01 00 07 00
<-----GAP_ParseResponseMsg: event = 0x67F status = 0x0
<-----GAP_ParseResponseMsg: event = 0x509 status = 0x0
<-----GAP_ParseResponseMsg: event = 0x509 status = 0x1A
<-----GAP_ParseResponseMsg: GAP_LINK_TERMINATED 0606 status = 0 event = 606 reason 0x13

-->GATT_DiscAllPrimaryServices: 01 90 FD 02 00 00
<-----GAP_ParseResponseMsg: event = 0x67F status = 0x0
<-----GAP_ParseResponseMsg: event = 0x511 status = 0x0
<-----GAP_ParseResponseMsg: event = 0x511 status = 0x1A
<-----GAP_ParseResponseMsg:GAP_LINK_TERMINATED 0606 status = 0 event = 606 reason 0x13

FY:

We send only GapInit_connect before doing the GATT_DiscAllChars, GATT_DiscAllCharDescs & GATT_DiscAllPrimaryServices.

GapInit_connect: 01 62 FE 0A 00 48 06 20 D7 4F 14 01 00 00

Do we need to send any command to extend the connection time?

Thanks

Sen

over 4 years ago

0 Nathan Block over 4 years ago

TI__Mastermind 38575 points

Hi Sen,

What devices are you trying to read? Some devices won't let you read all their characteristics which may cause this error.

Best,

Nate

0 Sen Senthuran over 4 years ago in reply to Nathan Block

Prodigy 220 points

Hi Nathan Block

<-----GAP_ParseResponseMsg: event = 0x511 status = 0x1A

Is my Interpretation correct here as below?

#define bleProcedureComplete 0x1A : The Procedure is completed.

0 Nathan Block over 4 years ago in reply to Sen Senthuran

TI__Mastermind 38575 points

Hi Sen

Apologies for the delay. While this seems to be referencing the correct section, it doesn't look like 0x1A is one of the possible return types for GATT_DiscAllChars based off the description in the gatt.h file. Does this happen regardless of the device it tries to connect to? Was this done with unmodified out-of-the box code, or have you made major changes to an example?

Best,

Nate

0 Sen Senthuran over 4 years ago in reply to Nathan Block

Prodigy 220 points

We are using out-of-the-box host_test code. Yes, we get it regardless of any device that we connected to.

We assume this is the indication of procedure is completed.

#define bleProcedureComplete 0x1A : The Procedure is completed.

If that makes sense to you, we can close this ticket.

+1 Nathan Block over 4 years ago in reply to Sen Senthuran

TI__Mastermind 38575 points

Hi Sen,

Digging into the SDK, I found that bleProcedureComplete is an acceptable return value indicating that the procedure is complete, so this is fine. I was incorrect before.

Best,

Nate

0 Sen Senthuran over 4 years ago in reply to Nathan Block

Prodigy 220 points

Thanks Nate for the confirmation..

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CC2652R: GAP_LINK_TERMINATED while reading