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CCS/LAUNCHXL-CC2640R2: notification crashes application

Sebastien Landry
Prodigy 190 points

Part Number: LAUNCHXL-CC2640R2
Other Parts Discussed in Thread: CC2640R2F, CC2650

Tool/software: Code Composer Studio

Hi, 

I am using a modified version of the Sensor Tag project with the CC2640R2 in order to use BLE5. I've followed every porting guide and everything was working fine, I was able to recover data from a couple of sensors. I did not change the profile files (ex barometerservice.c). My project now requires me to be able to use the notify option of the barometer service and every time I try to activate this function in NRF connect or BLE scanner I get disconnected from the device and it does not advertise again. I sometimes get one data back after activating the notify and then the device disconnect and crash.

I am getting this error with the barometer, the humidity and the movement service for now (I did not test the other one).

It's odd because everything else is working fine and I did not have this problem with the original SensorTag development kit.

Any help will be appreciated

thanks

Seb

  • 0
    TI__Genius 11740 points
    Hi Seb,

    Are there hardware exceptions when the device crashes? (Or is it stuck anywhere odd?)

    Have you checked RAM usage?

    Actually, what have you checked so far?

    Regards,
    Rebel
  • 0 in reply to A. Rebel
    Prodigy 190 points

    Hi Rebel,

    The RAM usage is below 70% so I think it's not the problem. I may have forgotten to mention that the base application is from Simple BLE Peripheral in my original post.

    After a few test, I have noticed that I am always able to receive one notification from a service characteristic before the crash. Also, when I use the simple_gatt_service example given in the ble5 simple peripheral project, the notification works well and I always get the notification when a value as changed.

    Since I ported the sensor Tag applications and services from the old BLE stack maybe there's something I forgot to change or there is something incompatible? I don't fully understand the callback functions and did not change anything in the service files (ex. barometerservice.c).

    I don't know where to start and what to do regarding this issue.

    thanks for the help

    Seb

  • 0 in reply to Sebastien Landry
    Guru 86865 points
    Hi Sebastian,

    I ported the CC2650 Launchpad Sensortag Example Program to CC2640R2 launchpad using simple peripheral from SDK 1.00 as base. I just followed the guide and it worked. I suggest you review my code porting changes and compare to yours. See, my blog link at my signature. The blog post is "TI CC2640R2F SensorTag". There is a github link in the blog post.

    - kel
  • 0 in reply to Markel Robregado
    Prodigy 190 points

    Thanks a lot, I will compare my changes with yours in order to fix the issue

    Regards,

    Seb