AIROC™ Bluetooth Forum Discussions

Hi,

I've compiled and uploaded the example a2dp_sink example with added CYBT-343026 Eval libraries in ModusToolbox to a CYBT-343026 module successfully. The module is discoverable and I can stream audio to it but the issue is that the audio volume fades up and down all the time. My circuit uses a number of digital i2s inputs to an ES9018 DAC of which the CYBT-343026 is one of them. All the other digital inputs work fine except the module which leads me to think that I've missed something in the a2dp code example? Appreciate any help!

Hi there,

May I confirm if cyw20719 or cyw20721 can support RTOS?
We would like to use RTOS to control the peripheral SPI, I2C , PWM, ADC etc.

If yes, do you have a porting guide?!

Thank you!

Mason

I am trying to bring up Bluetooth module received from Vendor #CYW89702 @infineon for Android 11. I could see in the documents its mentioned to copy libbt vendor folder from hardware/infineon/libbt. But in AOSP Infineon libbt is not open source. I guess i have missed it and can anybody confirm it that i missed and i need to ask the Vendor for the same. Or I could see Infineon is a sub brand of Broadcom and in AOSP i could see there is already Libbt available of broadcom so i should use that?

Hi,

I am working with a CYBT-333047-02 device and we are trying to see how we can program the device going through another MCU.

To explain quickly, since we are limited in space on our board, we want to use an MCU as a bridge between our PC and the CYBT. The setup is as follows:
PC <-> FTDI cable <-> some MCU that acts as a bridge <-> CYBT-333047-02

When I use the CYBT-333047-EVAL board connected to my PC through the FTDI cable, I can program the device just fine. But when I connect it through my MCU, it doesn't work.

I am using ModusToolbox to program my device.

Below is the error message that I see:

Programming target device ... 

Detecting serial port ...
Found serial port : COM13

Downloading FW ...
Failed to execute DownloadMinidriver command 
Download failed

I used a logic analyzer to see what is going on, and here is what I see (picture is attached):

• Purple and blue are what the FTDI is sending/receiving
• Orange and white are what the CYBT-333047 sees on the other side of the bridge (between MCU and CYBT device)

Here is the sequence of messages that are exchanged:

1. PC -> CYBT: 0x01 0x03 0x0C 0x00
2. CYBT->PC 0x04 0x0E 0x04 0x01 0x03 0x0c 0x00
3. some delay
4. PC->CYBT: 0x01 0x4D 0xFC 0x05 0x1C 0xD2 0x00 0x00 0x01
5. CYBT->PC 0x04 0x0E 0x05 0x01 0x4D 0xFC 0x00 0x21

What am I missing?

Any help would be appreciated

Michel

Hi Sir:

because the BT stack and library still keep update from Infineon.

So. If customer has OTA feature in first verstion.

Does FW OTA binary file included Application and BT stack/profle library ?

Austin

Hi Sir :

the latest EZ-Serial FW is CYBT-343026-01-EZ-Serial_v1.2.38.0.

Is there new host api library  for EZ-Serial_v1.2.38?

here is previous discuss link:

https://community.infineon.com/t5/ModusToolbox/EZ-Serial-Host-API-Protocol-Library-v1-2-27-C-headers/td-p/277561

Austin

We are going to deisgn a lock work with apple homekit and also support homekey. We hope to use ble only.
We know some ic manufacturer had put homekit sdk to EOL becauce of Matter rolling out.
How about Infineon? Does Infineon's homekit sdk still maintain and support homekey?

We are going to deisgn a lock work with apple homekit and also support homekey. We hope to use ble only.
We know some ic manufacturer had put homekit sdk to EOL becauce of Matter rolling out.
How about Infineon? Does Infineon's homekit sdk still maintain and support homekey?