Re: [Bluez-users] mx27, csr and bluez: initialisation timed out

[Tim Chick <chick@computergeek.freeserve.co.uk>]

>  [Bluez-users] mx27, csr and bluez: initialisation timed out
> From: Peter Wurmsdobler <peter@wu...> - 2008-01-22 13:46
>
> The kernel boots, and the bluetooth related facilities printk some
> messages such as HCI UART driver ver 2.2, H4 and BCSP protocol
> initialised. Since the BlueTooth module does not know the clock
> frequency it is using, or the baud rate of the host, I need to
> "configure" the BlueCore and warm-reset it:
>
> mx27# bccmd -t BCSP -d /dev/ttymxc1 psload config.psr warmreset
>

What you actually want is:

bccmd -t BCSP -d /dev/ttymxc1 psload -r config.psr

as bccmd can only perform one command at a time.

> However, the only message I get is: "Initialization timed out",
> which, looking through the code, is generated in
> bluez/tools/csr_bcsp.c in the open function. But why?
>

There appear to be some races in the BCSP, which may not cause a problem 
on a PC. I have some changes and will publish to the devel list.

As a work around, the following works reliably for me:

hciattach /dev/ttyS0 bcsp
bccmd -t HCI psload -r my.psr
killall hciattach
hciattach /dev/ttyS0 bcsp

Cheers,
Tim


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