CCS/CC2640: CC2640 and BLED112 module - handling notification receive

Erez Shaul9

Part Number: CC2640

Tool/software: Code Composer Studio

Hi,

I am struggling with the following issue:

I am using BLED112 module to send/receive BLE packets from various devices (developed by myself) and a PC application (C# over .net)

I have 2 devices:

1. Based on TI CC2640 BLE chip

2. Based on Cypress CY8C4127LQI

I can send data to both devices to a "read" characteristic that I have created (on the peripheral device)

Both devices have also a "notification" characteristic that sends data every X seconds.

I am getting that notification on the BLED112 only from device 2 (cypress) and not from device 1 (TI)

In fact, the uart communication between the application to the BLED112 is quite during a notification from device type 1.

I confirmed that device 1 is sending notifications using standard BLE communicator.

Can you suggest what might be the reason?

Best Regards,

Erez Shaul

over 6 years ago

0 J Lindh over 6 years ago

TI__Guru 57865 points

Hi Enez,
Assigning this thread to an expert

0 Eirik V over 6 years ago

TI__Guru 56590 points

Hello Erez,
Can you show me the packet sniffer log for the notification?
If the CC2640 correctly transmit the notification after it's CCCD is enabled for notification (01:00) then the issue seems to be in the BLED112 implementation which we cannot support.

0 Erez Shaul9 over 6 years ago in reply to Eirik V

Intellectual 290 points

Dear Eirik,

Thanks for your assistance,

I closed this issue as I understood that I have to enable the notification on my TI device, as apposed to my cypress device there the notification was already enabled.

Thanks

Erez.

Bluetooth®︎

Bluetooth forum

CCS/CC2640: CC2640 and BLED112 module - handling notification receive