Why my central device can not get notification from slave device

sdf chris

I use the simpleBlecentral and simpleBLEperipheral to test, on slave device, use the simplekey to send notification. In simpleBlecentral, I add

else if(pMsg->method == ATT_HANDLE_VALUE_NOTI )
{

}

in simpleBLECentralProcessGATTMsg, and set a breakpoint in it,but can not excute to it when slave device send char.

So what should I do to get the data from slave notification?

Chris

over 12 years ago

0 sdf chris over 12 years ago

Expert 1250 points

I try to use BTOOL to enable the notification of slave device. But found an intresting thing, most of the document or thread on the forum said that if you want to write the configuration of characterisctic that have notification property, you should +1 to the handle discovered by UUID, and I follow this, always return WRITE_NOT_PERMITTED,

For example ,I first discover characteristic using UUID 0xFFF4, then it return handle 0x2D, then I use 0x2E to write the configuration, it complain write not permitted. Then I seached on the web again and again, found this thread on the forum, the poster of this thread also encount my issues.

http://e2e.ti.com/support/low_power_rf/f/538/p/214362/756743.aspx

So I read the wiki mentioned in this thread

http://processors.wiki.ti.com/index.php/LPRF_BLE_Simple_Application

I found in the wiki, the read handle is 0x2E but not 0x2D , then I use 0x2F to write , it is sucess. So what should I do to get the right UUID for write the configuration?

Thanks.

Chris

0 sdf chris over 12 years ago in reply to sdf chris

Expert 1250 points

I found it is a bug of new BTOOL , use BTOOL 1.2.1 works.

Chris

Bluetooth®︎

Bluetooth forum

Why my central device can not get notification from slave device