CC2640 abort() ICALL encountered

Ming Leung50

I have a project based on SimplePeripheral from BTStack 2.1. It was working fine until additional characteristic attributes' notification are enabled. There is no problem when only one characteristic attribute's notification is enabled, but when the 2nd attribute's is enabled (after the 1st one), the abort ICall message (see attached) will come and freeze the runtime. The abort ICall message doesn't come immediately but rather 5s after the 2nd attribute notification is enabled. There is no data transfer between central (iPhone) and peripheral (SmartRF06) during the test - just enabling notification. The central side receives the correct notification enable responses. The gatt attribute table for the service is triple checked to be setup correctly.

Questions:

1/ Any idea what could be wrong?

2/ I assume the abort is coming from the BLE stack. How do I know the reason of the abort?

../ming

over 10 years ago

0 JXS over 10 years ago

TI__Guru** 105180 points

Hello Ming,

Did you add any RTOS tasks beyond the default example in SimpleBLEPeripheral? Also, are you calling any Stack APIs from 1) a callback function, or 2) a context other than a task (i.e., SWI or HWI)?

Best wishes

0 Ming Leung50 over 10 years ago in reply to JXS

Intellectual 720 points

Thanks. Indeed that was the problem.

0 Shaba Abhiram over 10 years ago in reply to Ming Leung50

Intellectual 540 points

Ming, which of these was the issue for you: (1) or (2) from what JXS said?

0 Ming Leung50 over 10 years ago in reply to Shaba Abhiram

Intellectual 720 points

Hi Shaba,

It was calling a Stack API from a callback function.

../ming

0 Ethan Hunt over 9 years ago in reply to JXS

Prodigy 90 points

Hi JXS,

If I want to call BLE Stack APIs from custom task then I followed this tutorial and code is not working. I kept custom task's priority same as other SimpleBLECentral task's priority(1).

Project Defines:

ICALL_MAX_NUM_TASKS=3

ICALL_MAX_NUM_ENTITIES=6

I am not sure about where to set "OSAL_MAX_NUM_PROXY_TASKS=3" in predefined symbols section only as there is no existing such define in the simple_central_cc2650lp_app project.

Bluetooth®︎

Bluetooth forum

CC2640 abort() ICALL encountered