AIROC™ Bluetooth Forum Discussions

My application is a bluetooth microphone using bluetooth profile HSP, HFP, or A2DP. Is it possible to use the CYW20735 for this application?

If possible then please specify if it is possible to do it without an external MCU.

We have used CWY920719 device on a custom board with additional peripherals such as a NAND Flash Module, and an NTAG module.  We can successfully download our hex file to the board using Cypress Programmer version 4.0.0. Also, we can verify the device successfully using the 'Verify' button on Cypress Programmer tool bar. After that, we expect that our code runs on the device. But we have no indication that our code is running: we do not see the traces come out on PUART console. Even after a power on reset, we see nothing come out.

a. Is there some setting we have to enable in our code or in makefile to cause our board to run the code from on-chip flash on CWY920719 device?

b. The Cypress Programmer shows the launch address as 0x00000000 in the parameter for ChipLoad.exe command. E.g.,

    ChipLoad.exe -BLUETOOLMODE -PORT COM4 -LAUNCHADDRESS 0x00000000 -BAUDRATE 115200 ....

Does this value have to be different for our custom board? If yes, how do I know what it has to be?

We have prototyped using the CYW920719Q40EVB_01 board. We are able to run the same code just fine on this Evaluation board. We have been able to hook up our additional peripherals to the Evaluation board, and again  our code with all the same peripherals run just fine on the Evaluation board.

Thanks in advance for your reply. We are eagerly waiting for an answer.

Best regards,

PK

Hello,

I am trying to connect microcontroller  CYW89820 in SPP mode to HC-05 in master role.

I can see in HC-05 the address and device name of CYW89820. But when HC-05 is trying to connect (by bind command AT+BIND=2081,9A,156668), i just get the message from cypress "Pairing Complete: 5app_management_callback 3remote address = 98 d3 b1 fd 8a 86 app_management_callback 11Pairing Complete: 5". I am using the RFCOMM_Serial_Port demo program.

the Error 5 is comming from p_pairing_info-> br_edr.status, can you explain what is this number.

thanks

I found  the scription that CYBT-483056-02(Based on CYW920719) module can enable PA for obtaining power class 1

But in the allication note for the CYW920719, there is written as (The external
power amplifier feature is not enabled on this board due to a shortage of GPIOs.)

Which one is correct?

My customer want to develope power class 1 bluetooth module with CYW920719.

Thank you for your support

Hello all,

I am using cyw920706 with modus toolbox successfully, that is, I can compile and install the examples 😎

But when I disable the serial flash (sw7[1-5]=off) the installation fails

How can I download directly in ram?

Hi,

We are trying to check the connection stability of Bluetooth. 

We checked the bluetooth connection with the firmware which was provided by default. We are not sure about the firmware version but there was no connection instability. The default MAC Address was AA:AA:AA:AA:AA:AA.

Then after flashing the new firmware (minidriver.bin, firmware.bin, bt_fw_download) the MAC address got changed to 20:81:9A:1F:4F:50. But after this firmware flash we are facing disconnection issue. The testing procedure is provided below:

1) Enabling the Bluetooth by executing ble.sh. The script file has been attached below.

2) Running the bluetooth.service. 

3) Executing bluetoothctl commands for establishing the Bluetooth connection and the commands are as below:

  :scan on

  : scan off

  : pair<MAC-ADDRESS>

  : connect<MAC-ADDRESS>

5) After following these steps Bluetooth connection is established but within few seconds there is a disconnection. This scenario is not observed when we tested with the default firmware. Please find the below attachment

Regards,

Akshay Naik 

Hi,
I have a question about Bluetooth of CYW920819EVB-02.

Is it possible to realize the functions of BT5.1 (AoA (Angle of Arraival) and AoD (Angle of Depature)) using CYW920819EVB-02?
Is there any sample code to achieve this functionality?
Is the CYW920819EVB-02 a multi-antenna?

Regards,
Sugino

I should guide RF test for the customer for CYW20706

I cannot find a  RF Test tool in Modus tool.

Should I use a Cybluetool for the RF Test?

How can I enter DUT mode in that case?

If you have guide document file, Please share it

Many Thanks

Hi,

I have a question about complied BT version of CY20819.

According to the datasheet CY20819 complies with BT5.0.
https://www.cypress.com/file/462851/download

However the following web site indicate CY20819 complies with BT5.2.
https://www.cypress.com/products/cyw20819

Does CY20819 support which BT versions 5.0 or 5.2?

Regards,
Nagata