BLE broken pipe unrecoverable

[mrx23dot]

Answers checklist.

• I have read the documentation ESP-AT Programming Guide and the issue is not addressed there.
• I have used the latest released firmware or have updated my ESP-AT branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

After first BLE connection failure with broken pipe it cannot connect to anything without a reboot.

So it's getting stuck.

AT+BLEINIT=1

# ensure not connected
AT+BLEDISCONN=0
ERROR

# connection fails 
AT+BLECONN=0,"73:f7:7c:18:70:b1",1,5
+BLESCANDONE
+BLECONN:0,-1
ERROR

# ensure not connected
AT+BLEDISCONN=0
ERROR

# connect to any other
AT+BLECONN=0,"5f:29:72:aa:82:c4",1,5
+BLESCANDONE
+BLECONN:0,-1
ERROR

# same error to any other addresses without reboot

It doesn't even seem to wait for timeout period, fails instantly.

Reboot solves the issue.
AT+BLEINIT=0 seems to simply reboot the system, which is slow.

AT+BLEINIT=0
ready

version

AT+GMR
AT+GMR
AT version:3.2.0.0(s-ec2dec2 - ESP32 - Jul 28 2023 07:05:28)
SDK version:v5.0.2-376-g24b9d38a24-dirty
compile time(6118fc22):Jul 28 2023 10:14:50
Bin version:v3.2.0.0(PICO-D4)

[ustccw]

@Luxin812 PTAL

[Luxin812]

Answers checklist.

• I have read the documentation ESP-AT Programming Guide and the issue is not addressed there.
• I have used the latest released firmware or have updated my ESP-AT branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

General issue report

After first BLE connection failure with broken pipe it cannot connect to anything without a reboot.

So it's getting stuck.

AT+BLEINIT=1

# ensure not connected
AT+BLEDISCONN=0
ERROR

# connection fails 
AT+BLECONN=0,"73:f7:7c:18:70:b1",1,5
+BLESCANDONE
+BLECONN:0,-1
ERROR

# ensure not connected
AT+BLEDISCONN=0
ERROR

# connect to any other
AT+BLECONN=0,"5f:29:72:aa:82:c4",1,5
+BLESCANDONE
+BLECONN:0,-1
ERROR

# same error to any other addresses without reboot

It doesn't even seem to wait for timeout period, fails instantly.

Reboot solves the issue. AT+BLEINIT=0 seems to simply reboot the system, which is slow.

AT+BLEINIT=0
ready

version

AT+GMR
AT+GMR
AT version:3.2.0.0(s-ec2dec2 - ESP32 - Jul 28 2023 07:05:28)
SDK version:v5.0.2-376-g24b9d38a24-dirty
compile time(6118fc22):Jul 28 2023 10:14:50
Bin version:v3.2.0.0(PICO-D4)

This issue has been fixed. Can you test it using release v3.4.0.0 or the latest firmware on the master branch to test it.

[ustccw]

We assume this worked for you, and will close it. If that's not the case, please open another github issue.