CC2650STK - SimpleBLEPeripheral - Data Not Send Out When First Byte Data Is 0x80

tkCheng

Other Parts Discussed in Thread: CC2650

Hi Everyone,

I am using CC2650, loaded with SimpleBLEPeripheral example. Reading the default value for characteristic 5 is OK, I can get back the string 0x0102030405.

But when I change the initialise value to 0x8002030405 in SimpleBLEPeripheral_init, I no longer able to read the value (The android app is not display with any values).

uint8_t charValue5[SIMPLEPROFILE_CHAR5_LEN] = { 0x80, 2, 3, 4, 5 };

I actually this discovered this when working on characteristic 1, then test with characteristic 5 and same result.

over 10 years ago

0 JXS over 10 years ago

TI__Guru** 105180 points

Hello,

Did you try with BTool? This may give you a hint as to if there's a BLE / ATT protocol error.

Best wishes

0 tkCheng over 10 years ago in reply to JXS

Intellectual 810 points

Hi JXS,

As per your advice, I tried with SmartRF Packet Sniffer (Using this as my USB dongle had program with this), and did in fact found data sending out from device is working fine. Screenshot as below.

It is clearly seen Slave sending out 0x80 0x02 0x03 0x04 0x05. Thus the CC2650 is working fine.

That means it is must be bugs on the android app.

Thanks for your advice.

0 JXS over 10 years ago in reply to tkCheng

TI__Guru** 105180 points

I figured as much. Thanks for sharing.

Best wishes

Bluetooth®︎

Bluetooth forum

CC2650STK - SimpleBLEPeripheral - Data Not Send Out When First Byte Data Is 0x80