Compiler/CC2640R2F: Changing the advertisement data dynamically.

Harsha B R Rao

Part Number: CC2640R2F

Tool/software: TI C/C++ Compiler

Hello Guys,

I want to change the advert data on a pin interrupt, I tried a couple of things, and didn't work out, here are some code snippets of the function that is called from pin interrupt.

1st trial:

sbpTaskHandle = Task_handle(&sbpTask);
Task_setPri(sbpTaskHandle,-1);
newAdvertData_init();
Task_setPri(sbpTaskHandle,SBP_TASK_PRIORITY);

2nd trial:

 uint8 advertEnabled = FALSE;
 GAPRole_SetParameter(GAPROLE_ADVERT_ENABLED, sizeof(uint8_t),
    &advertEnabled);
 newAdvertData_init();
 uint8 advertEnabled = FALSE;
 GAPRole_SetParameter(GAPROLE_ADVERT_ENABLED, sizeof(uint8_t),
    &advertEnabled);

In the first trail, i think the set priority is not working fine, and in the second the gap role set parameter is not working. Any suggestions on how do i get this done? I did refer to the having the multiple advertisement sets, but i think that is only supported in BLE5, but i m using BLE 4.2.

Thank you.

over 6 years ago

0 Christin Lee over 6 years ago

TI__Guru 56475 points

This specific user case is already covered in our SimpleLink Academy advertising lab.
dev.ti.com/.../ble_scan_adv_basic.html
Please walk through the training.

0 Harsha B R Rao over 6 years ago in reply to Christin Lee

Intellectual 710 points

Well, as per the guidance there i did try to change the advert data or switching off the advertisements, but it didn't work.

0 Harsha B R Rao over 6 years ago in reply to Christin Lee

Intellectual 710 points

While on the run-time cant i set the gap parameters from a function that is called from a pin interrupt function? I want to turn off the advertising and change the data.

Or should i create an even in simpleperipheraltaskfxn to do the same?

0 Christin Lee over 6 years ago in reply to Harsha B R Rao

TI__Guru 56475 points

The SWI interrupt has higher priority than task, you can’t do a gap set param in the interrupt. What you should do is to post an event in the interrupt and deal with that event in the user_applicationmsg queue.
I would recommend you to go through our SimpleLink Academy trainings to get used to our software structures.

0 Harsha B R Rao over 6 years ago in reply to Christin Lee

Intellectual 710 points

Yea i am just posting a semaphore on the interrupt and pending that in the task, and in the task i want to change the GAP parameters, is this possible? Also, in the link you sent before the advert data is changed periodically, can i do the same creating one more event in the application layer of the simple peripheral and when that event takes place can i change the GAP parameters, and i dont see how is this different from the first type i have mentioned here in this comment.

0 Christin Lee over 6 years ago in reply to Harsha B R Rao

TI__Guru 56475 points

You don't need to create an additional task for just changing advertisement data. You can do it the way similar to the SimpleLink Academy lab.

Instead of using a software timer to post an event, you can use the pin-interrupt to post an event and handle it in the same task as simple_peripheral task.

Have you already tried the way that's implemented in the SimpleLink Academy?

Bluetooth®︎

Bluetooth forum

Compiler/CC2640R2F: Changing the advertisement data dynamically.