CC1354P10: BLE reconnection issue due to Connection parameter not updating

veerappan s

Prodigy 10 points

Part Number: CC1354P10

Tool/software:

Smartphone: Google Pixel 7 pro

During the connection of BLE with the device,

- First time it is Device is connecting well,

- Bonding also happening

- Read / Write characteristics also working

- Now I am disconnecting the Bluetooth

- After that if I am trying to reconnect, it is connected.

- Read / write characteristic i am checking that time "Error 133 (0x85): GATT ERROR" & "Error 22 (0x16): GATT CONN TERMINATE LOCAL HOST"

(Note: This issue happing after 1 or 2 approach randomly, not in first approach).

In log We have identify connection parameter is missing before read write (Please find the file attachment of log).

Fullscreen devlopment board trial 1Log 2025-01-21 19_03_04.txt Download

nRF Connect, 2025-01-21
Bench_Demo (46:B4:77:42:D1:6B)
V	19:01:31.352	Connecting to 46:B4:77:42:D1:6B...
D	19:01:31.353	gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferred PHY = LE 1M)
D	19:01:32.005	[Callback] Connection state changed with status: 0 and new state: CONNECTED (2)
I	19:01:32.005	Connected to 46:B4:77:42:D1:6B
V	19:01:32.007	Discovering services...
D	19:01:32.007	gatt.discoverServices()
D	19:01:32.024	[Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED
I	19:01:32.377	Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms)
I	19:01:32.456	PHY updated (TX: LE Coded, RX: LE Coded)
I	19:01:32.657	PHY updated (TX: LE Coded, RX: LE Coded)
D	19:01:32.720	[Callback] Services discovered with status: 0
I	19:01:32.720	Services discovered
V	19:01:32.735	Generic Access (0x1800)
- Device Name [R W] (0x2A00)
- Appearance [R W] (0x2A01)
- Peripheral Preferred Connection Parameters [R] (0x2A04)
- Central Address Resolution [R] (0x2AA6)
- Resolvable Private Address Only [R] (0x2AC9)
Generic Attribute (0x1801)
- Service Changed [I] (0x2A05)
   Client Characteristic Configuration (0x2902)
Device Information (0x180A)
- System ID [R] (0x2A23)
- Model Number String [R] (0x2A24)
- Serial Number String [R] (0x2A25)
- Firmware Revision String [R] (0x2A26)
- Hardware Revision String [R] (0x2A27)
- Software Revision String [R] (0x2A28)
- Manufacturer Name String [R] (0x2A29)
- IEEE 11073-20601 Regulatory Certification Data List [R] (0x2A2A)
- PnP ID [R] (0x2A50)
Unknown Service (48eb9001-f352-5fa0-9b06-8fcaa22602cf)
- Unknown Characteristic [R W] (48eb9004-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [R] (48eb9005-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [W] (48eb9002-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [N] (48eb9003-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [R] (48eb9006-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
D	19:01:32.735	gatt.setCharacteristicNotification(00002a05-0000-1000-8000-00805f9b34fb, true)
D	19:01:32.738	gatt.setCharacteristicNotification(48eb9003-f352-5fa0-9b06-8fcaa22602cf, true)
I	19:01:32.825	Connection parameters updated (interval: 30.0ms, latency: 0, timeout: 5000ms)
V	19:01:34.953	Starting pairing...
D	19:01:34.953	device.createBond()
D	19:01:35.006	[Broadcast] Action received: android.bluetooth.device.action.BOND_STATE_CHANGED, bond state changed to: BONDING (11)
D	19:01:35.375	[Broadcast] Action received: android.bluetooth.device.extra.PAIRING_VARIANT, pairing variant: CONSENT
I	19:01:37.525	PHY updated (TX: LE Coded, RX: LE Coded)
D	19:01:38.529	[Broadcast] Action received: android.bluetooth.device.action.BOND_STATE_CHANGED, bond state changed to: BONDED (12)
I	19:01:38.529	Device bonded
V	19:01:46.843	Writing request to characteristic 48eb9004-f352-5fa0-9b06-8fcaa22602cf
D	19:01:46.843	gatt.writeCharacteristic(48eb9004-f352-5fa0-9b06-8fcaa22602cf, value=0x01)
I	19:01:46.925	Data written to 48eb9004-f352-5fa0-9b06-8fcaa22602cf, value: (0x) 01
A	19:01:46.925	"(0x) 01" sent
V	19:01:48.541	Reading characteristic 48eb9004-f352-5fa0-9b06-8fcaa22602cf
D	19:01:48.541	gatt.readCharacteristic(48eb9004-f352-5fa0-9b06-8fcaa22602cf)
I	19:01:48.605	Read Response received from 48eb9004-f352-5fa0-9b06-8fcaa22602cf, value: (0x) 01
A	19:01:48.605	"(0x) 01" received
V	19:01:52.593	Disconnecting...
D	19:01:52.593	gatt.disconnect()
D	19:01:52.602	[Callback] Connection state changed with status: 0 and new state: DISCONNECTED (0)
I	19:01:52.602	Disconnected
D	19:01:53.638	[Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED
D	19:01:56.775	gatt.close()
D	19:01:56.781	wait(200)
V	19:01:56.983	Connecting to 46:B4:77:42:D1:6B...
D	19:01:56.984	gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferred PHY = LE 1M)
D	19:01:57.260	[Callback] Connection state changed with status: 0 and new state: CONNECTED (2)
I	19:01:57.260	Connected to 46:B4:77:42:D1:6B
D	19:01:57.260	wait(1600ms)
D	19:01:57.278	[Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED
I	19:01:57.512	PHY updated (TX: LE 2M, RX: LE 2M)
I	19:01:57.935	Connection parameters updated (interval: 7.5ms, latency: 0, timeout: 5000ms)
I	19:01:58.067	PHY updated (TX: LE Coded, RX: LE Coded)
I	19:01:58.356	Connection parameters updated (interval: 30.0ms, latency: 0, timeout: 5000ms)
I	19:01:58.684	PHY updated (TX: LE Coded, RX: LE Coded)
V	19:01:58.861	Discovering services...
D	19:01:58.861	gatt.discoverServices()
D	19:01:58.875	[Callback] Services discovered with status: 0
I	19:01:58.875	Services discovered
V	19:01:58.892	Generic Access (0x1800)
- Device Name [R W] (0x2A00)
- Appearance [R W] (0x2A01)
- Peripheral Preferred Connection Parameters [R] (0x2A04)
- Central Address Resolution [R] (0x2AA6)
- Resolvable Private Address Only [R] (0x2AC9)
Generic Attribute (0x1801)
- Service Changed [I] (0x2A05)
   Client Characteristic Configuration (0x2902)
Device Information (0x180A)
- System ID [R] (0x2A23)
- Model Number String [R] (0x2A24)
- Serial Number String [R] (0x2A25)
- Firmware Revision String [R] (0x2A26)
- Hardware Revision String [R] (0x2A27)
- Software Revision String [R] (0x2A28)
- Manufacturer Name String [R] (0x2A29)
- IEEE 11073-20601 Regulatory Certification Data List [R] (0x2A2A)
- PnP ID [R] (0x2A50)
Unknown Service (48eb9001-f352-5fa0-9b06-8fcaa22602cf)
- Unknown Characteristic [R W] (48eb9004-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [R] (48eb9005-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [W] (48eb9002-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [N] (48eb9003-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [R] (48eb9006-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
D	19:01:58.892	gatt.setCharacteristicNotification(00002a05-0000-1000-8000-00805f9b34fb, true)
D	19:01:58.896	gatt.setCharacteristicNotification(48eb9003-f352-5fa0-9b06-8fcaa22602cf, true)
I	19:01:59.284	PHY updated (TX: LE Coded, RX: LE Coded)
I	19:01:59.744	PHY updated (TX: LE Coded, RX: LE Coded)
I	19:02:03.457	Connection parameters updated (interval: 120.0ms, latency: 0, timeout: 1000ms)
V	19:02:08.567	Writing request to characteristic 48eb9004-f352-5fa0-9b06-8fcaa22602cf
D	19:02:08.567	gatt.writeCharacteristic(48eb9004-f352-5fa0-9b06-8fcaa22602cf, value=0x02)
I	19:02:08.737	Data written to 48eb9004-f352-5fa0-9b06-8fcaa22602cf, value: (0x) 02
A	19:02:08.737	"(0x) 02" sent
V	19:02:14.243	Reading characteristic 48eb9004-f352-5fa0-9b06-8fcaa22602cf
D	19:02:14.243	gatt.readCharacteristic(48eb9004-f352-5fa0-9b06-8fcaa22602cf)
I	19:02:14.496	Read Response received from 48eb9004-f352-5fa0-9b06-8fcaa22602cf, value: (0x) 02
A	19:02:14.496	"(0x) 02" received
V	19:02:17.536	Disconnecting...
D	19:02:17.536	gatt.disconnect()
D	19:02:17.543	[Callback] Connection state changed with status: 0 and new state: DISCONNECTED (0)
I	19:02:17.543	Disconnected
D	19:02:18.601	[Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED
D	19:02:19.828	gatt.close()
D	19:02:19.831	wait(200)
V	19:02:20.032	Connecting to 46:B4:77:42:D1:6B...
D	19:02:20.032	gatt = device.connectGatt(autoConnect = false, TRANSPORT_LE, preferred PHY = LE 1M)
D	19:02:20.687	[Callback] Connection state changed with status: 0 and new state: CONNECTED (2)
I	19:02:20.687	Connected to 46:B4:77:42:D1:6B
D	19:02:20.688	wait(1600ms)
D	19:02:20.712	[Broadcast] Action received: android.bluetooth.device.action.ACL_CONNECTED
V	19:02:22.288	Discovering services...
D	19:02:22.288	gatt.discoverServices()
D	19:02:22.294	[Callback] Services discovered with status: 0
I	19:02:22.294	Services discovered
V	19:02:22.300	Generic Access (0x1800)
- Device Name [R W] (0x2A00)
- Appearance [R W] (0x2A01)
- Peripheral Preferred Connection Parameters [R] (0x2A04)
- Central Address Resolution [R] (0x2AA6)
- Resolvable Private Address Only [R] (0x2AC9)
Generic Attribute (0x1801)
- Service Changed [I] (0x2A05)
   Client Characteristic Configuration (0x2902)
Device Information (0x180A)
- System ID [R] (0x2A23)
- Model Number String [R] (0x2A24)
- Serial Number String [R] (0x2A25)
- Firmware Revision String [R] (0x2A26)
- Hardware Revision String [R] (0x2A27)
- Software Revision String [R] (0x2A28)
- Manufacturer Name String [R] (0x2A29)
- IEEE 11073-20601 Regulatory Certification Data List [R] (0x2A2A)
- PnP ID [R] (0x2A50)
Unknown Service (48eb9001-f352-5fa0-9b06-8fcaa22602cf)
- Unknown Characteristic [R W] (48eb9004-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [R] (48eb9005-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [W] (48eb9002-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [N] (48eb9003-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
   Unknown Descriptor (00002800-0000-1000-8000-00805f9b34fb)
- Unknown Characteristic [R] (48eb9006-f352-5fa0-9b06-8fcaa22602cf)
   Client Characteristic Configuration (0x2902)
D	19:02:22.300	gatt.setCharacteristicNotification(00002a05-0000-1000-8000-00805f9b34fb, true)
D	19:02:22.302	gatt.setCharacteristicNotification(48eb9003-f352-5fa0-9b06-8fcaa22602cf, true)
V	19:02:29.990	Writing request to characteristic 48eb9004-f352-5fa0-9b06-8fcaa22602cf
D	19:02:29.990	gatt.writeCharacteristic(48eb9004-f352-5fa0-9b06-8fcaa22602cf, value=0x03)
E	19:02:59.997	Error 133 (0x85): GATT ERROR
D	19:02:59.999	[Callback] Connection state changed with status: 22 and new state: DISCONNECTED (0)
E	19:02:59.999	Error 22 (0x16): GATT CONN TERMINATE LOCAL HOST
I	19:02:59.999	Disconnected
D	19:03:00.065	[Broadcast] Action received: android.bluetooth.device.action.ACL_DISCONNECTED

The screenshot of log is attached below,

So could you please guide us to where we can check in code for this problem.

11 months ago

0 Theo Lange 11 months ago

TI__Expert 7645 points

Hi Veerappan,

thank you for your detailed report.

To further investigate the issue could you please set up a packet sniffer with our software: https://www.ti.com/tool/download/PACKET-SNIFFER-2/1.10.0
You can follow this guide: https://software-dl.ti.com/lprf/packet_sniffer_2/docs/user_guide/html/users_guide.html#

Could you then capture a sniffer log of the issue occurring and link the packets to the error log?

Kind regards,
Theo

0 Til Schoengarth 11 months ago in reply to Theo Lange

TI__Prodigy 730 points

Hello Veerappan,

did you have a chance to create a sniffer file?

Or do you have some more information on the software flashed onto the CC1354?

Have you set any breakpoints / run step-by-step to see why the error is happening?

Best regards,

Til

Sub-1 GHz

Sub-1 GHz forum

CC1354P10: BLE reconnection issue due to Connection parameter not updating