I bought some amount of CYW20719B1 (CYW20719B1KUMLG in specific) for some project I'm working on. I set them on a small board with a UART connection. I got them working with BtAttach and was able to communicate using standard Linux bluez. However, all of them have the same BT-Mac address of AA:AA:AA:AA:AA:AA. My question is what's the simplest way to flush a new address to the chip, as I have many boards to process. I read in this very forum something about .btp files, but either I don't understand something, or I don't have the .btp file for this chip. Where do I get the right .btp file if I really need one?

Thanks ahead,

Assaf

I have asked about CYW43353 bt host wake here:

https://community.infineon.com/t5/Wi-Fi-Bluetooth-for-Linux/CYW43353-BT-host-wake-on-LWB5/td-p/471652

The thread was then locked and the accepted answer points to tutorial for CY20xxx parts.

Forgive me asking,  but will this actually work with CYW43353 series as well ?

Is it true then that the commands for BT host wake are the same across the whole range of your BT ICs ?

Kind regards.

Hello,

I am using WiFi-BT module 43438. I am using WiFi+BT combo chips with imx8mn device.
I am trying to run WiFi continuous TX test & try to change the channel in ongoing test but test is failing.

Below are the set of command,

Commands for starting WiFi continuos TX mode:
wl chanspec 1
wl nrate -m 7
wl mpc 0
wl up
wl phy_watchdog 0
wl pkteng_start 30:fc:eb:84:4d:c5
tx 40 1000 0
wl chanspec 4

Here after entering command for changing the channel(wl chanspec 4) with channel spec command my ongoing test is failing.

Could you please help me to solve the issue. Or let me know other commands to achieve the same?

We have already scheduled certification test. So we need this information as soon as possible.

Thanks,
Sujay

Hi There,

Are there any application notes/documents that explain how to use that functionality on CYW43353 which is used on the Laird LWB5 ?

What set of hci commands need to be written the the IC before the host goes into suspend ? How to set the wake up criteria ?

My current understanding is that Linux must put the IC into a special state before it goes into suspend, shut down BlueZ and thus disconnect all bluetooth clients.  Then based on a pre-defined criteria (say a matching advertisement) encountered during the suspend the module will toggle its BT host wake pin so that Linux can be woken up by an IRQ.

This is what Laird have to say about it :

https://www.lairdconnect.com/support/faqs/are-signals-btdevwake-and-bthostwake-required-be-connected-host-designs-lairds-sterling-lwb-and-lwb5

There is no mention of Lowe Power Mode in Cypress datasheet, we have instead  Low Power State/Sleep... Is it just as simple as putting the bluetooth device into sleep mode before Linux is going into suspend and the IC works it all out ? If so then  how to set the wake criteria ? Or am I incorrect somewhere here.

Thanks.

Hi,

I want to port driver for CYW43455. I used this  Cypress Linux WiFi Driver Release (FMAC) [2020-06-25]  release. I need to port this driver for 4.9 kernel. I followed the instructions in README file given in the backports. During the cross compilation of modules, I have seen the following warning.

WARNING: "hash_algo_name" [/Downloads/cypress/v5.4.18-backports/compat/compat.ko] undefined!

Similarly, during insmod compat.ko in the target board. I got the following error:

sakthi@localhost:~$ sudo insmod compat.ko

insmod: ERROR: could not insert module compat.ko: Unknown symbol in module

In dmesg, I got the following logs after insmod of compat.ko,

[  627.941252] compat: loading out-of-tree module taints kernel.

[  627.949143] compat: Unknown symbol hash_algo_name (err 0)

Could you please let me know how to fix this issue?

Thanks,

Sakthi

Is there Linux 3.10.17 support for the type 1DX Wifi/BT module? The processor being used is in the iMX6 family. It looks like the kernel drivers might exist (drivers/net/wireless/brcm80211/... ), but this is an old version of Linux and I am unsure if any firmware is compatible.

Thanks

Has anyone been able to change the bluetooth address in Sflash on the CYW43455 on a Raspberry Pi 4?  Presumably the SWD interface is tied to the main processor?

HI Team,

We have used CYW43439 in our design, but we are not able to power-up the device. Can you suggest the procedure and steps for power-up the device. 

Also if you can share the NVRAM bin file, Firmware file and CFG file for LINUX Kernel version 5.10.168. this will really help.