kw41z wireless uart hasn't characteristic value.

mangramarco — Tue, 10 Nov 2020 12:45:07 GMT

Hello,

i merge a ble stack code from project wirelessuartdemo-like to other project with the same mcu board (kw41z).

The first project work correctly. I can send and receive data with iotToolbox.

The new project instead has a problem: The device can receive a message but can't respond to smartphone.

To send data i use GattClient_WriteCharacteristicValue() that want gattCharacteristic_t type between varoius parameters.

Before it i assign characteristic.value.handle = mPeerInformation.clientInfo.hUartStream; but the problem is that mPeerInformation.clientInfo.hUartStream is zero. In the functioning code, this is not zero so if i overwrite characteristic.value.handle with the correct value it work fine.

i looked for mPeerInformation assignment and i found only one function that is BleApp_StoreServiceHandles() but the break point don't stop to it in any project. How is it possible?

Re: kw41z wireless uart hasn't characteristic value.

nxf56274 — Wed, 11 Nov 2020 02:34:46 GMT

Hi,

This means your mcu doesn't find the phone's service. Check why the mcu doesn't find the service.

Have a great day,
TIC

-------------------------------------------------------------------------------
Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

- We are following threads for 7 days after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
-------------------------------------------------------------------------------

topic Re: kw41z wireless uart hasn't characteristic value. in Wireless MCU

kw41z wireless uart hasn't characteristic value.

Re: kw41z wireless uart hasn't characteristic value.