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hciattach: Failed to read init response

Pierre BOGRAND
Prodigy 235 points

Part Number: CC256XCQFN-EM
Other Parts Discussed in Thread: CC2564C,

Hi,

I am trying to connect a CC2564C Bluetooth controller via a CC256XCQFN-EM eval board to a Raspberry Pi 2 with a Linux Kernel 4.19. I think I have all the necessary BT drivers and firmwares (BlueZ5, TIInit_6.12.26.bts file), that I successfully tested with a USB Bluetooth dongle.

But, when entering the command:

~$ hciattach /dev/ttyAMA0 texas 115200 flow


or

~$ hciattach -r /dev/ttyAMA0 texas 115200 flow


I get:

Failed to read init response (READ_LOCAL_VERSION_INFORMATION): Success
Can't initialize device: Success


And hciconfig does not report the controller.

I know this issue has already been raised here: https://e2e.ti.com/support/wireless-connectivity/wifi/f/968/t/495190?WL18xx-hciattach-Failed-to-read-init-response

But no solution seem to have been proposed for this missing byte...

Thanks in advance for any help.

Pierre