Studio Bluetooth Forum Discussions

Hello Cypress WICED Studio Support team,

I found unexpected behavior of WICED Studio 6.2.1.2.

At the following environment, SPP data transfer isn't completed.

[Environment]

       ClientControl----CYW20706  <----->  CYW20706---ClientControl

       CYW920706WCDEVAL or CYBT-343026-EVAL

       WICED Studio 6.2.1.2

       apps/demo/hci_audio_gateway

       SPP profile (hci_control_spp.c)

[Test procedure]

       1. build and download "apps/demo/hci_audio_gateway" on WICED Studio.

       2. Select SPP tab, "Connect" to peer and "Send" large file on Client Control.

[Attached file]

       log/   log files

           sent_data.txt

               -> sent data

           Orig_ClientControl_log_master.txt

           Orig_ClientControl_log_slave.txt

               -> log of ClientControl. Master device sent data to slave device.

           Orig_BTSpy.txt

               -> log of BTSpy

           Orig_received_data.txt

               -> received data. It should be same with sent_data.txt, but it is too short.

           Fixed_ClientControl_log_master.txt

           Fixed_ClientControl_log_slave.txt

           Fixed_received_data.txt

               -> log files when the following patch is applied.

       patch/  patch files

           client_control_spp_patch.txt

               -> patch file for spp.cpp in common/client_control/source/.

           hci_control_spp_patch.txt

               -> patch file for hci_control_spp.c in apps/demp/hci_audio_gateway/.

[My investigation]

    wiced_bt_rfcomm_write_data() returns WICED_BT_RFCOMM_CMD_PENDING.

    But hci_control_cpp and ClientControl couldn't handle it correctly.

    The WICED_BT_RFCOMM_CMD_PENDING is not a critical error.

    So, it would be better to be handled same as WICED_BT_RFCOMM_SUCCESS.

Could you double check my investigation ?

And, if it is correct, please fix this issue at the next release.

Hello,

I am using CYBT-333047_EVAL board with EZ-serial firmware software.

During the Serial communcation process, sometimes the bluetooth connection will be lost in the middle of data transfer.

Could someone please help me to understand why it is happening so and what changes I need to do?

One more issue is, I can see the bluetooth module is advertising and can be connectable only when I press the reset button on the Evaluation board. should I set the XRES pin always high or how it should be configured in order to advertise the bluetooth module soon after the power is supplied to the board ?

Thanks in advance.