Re: [Bluez-users] How to use Bluez with CSR chip ?

hong zhang
2008-06-11T18:04:03Z

Raymond,

I have a few questions.

1. Do you use CSR bleutooth stack from CSR?
2. If you use Bluez, you must use bluetooth stack
comes with kernel.
3. How is CSR chip initialized? by eeprom?

I believe you use CSR stack then you cannot use Bluez
utilities.

--henry

--- colorant <colorant@163.com> wrote:

> Hi henry
>
> Thanks for you reply.
>
> Yes , I am using BC4 A06 Rom version on an arm
> based embedded board.
>
> So this one must set pskey before running right
> ?
>
> I try to run the CSR's demo first to set the
> right pskey and run the
> chip up.
> After I exit the demo, I can use pc to detect
> the chip.
>
> While , then I use :
>
> hciattach /dev/ttyS1 bcsp 921600
>
> to attach ttyS1 to hci0
>
> after that , The PC can not detect the chip
> anymore.
>
> and then I try
> hciconfig hci0 up
> it can bring up the hci0 interface , but the pc
> still don't detect the
> chip.
>
> for kernel , I only insert bluetooth.ko and
> hci_uart.ko
>
> So , can you kindly figure out what might be
> wrong in my operation ?
>
> Seems to me the hciattach operation reset the
> chip. And I might need to
> modify the hciattach , or ?
>
> Raymond
>
> ----- Original Message -----
> From: "hong zhang" <henryzhang62@yahoo.com>
> To: "BlueZ users"
> <bluez-users@lists.sourceforge.net>
> Sent: Wednesday, June 11, 2008 8:57 AM
> Subject: Re: [Bluez-users] How to use Bluez with CSR
> chip ?
>
>
> > Raymond,
> >
> > CSR bc4 is initialized in two ways based on your
> > design. I assum your board is embedded. One is by
> > eeprom and one is using command after build. You
> need
> > to provide more information.
> >
> > You have to make sure your CSR bc4 chip on your
> board
> > is up first before using bluez.
> >
> > Regular talking here is based on x86.
> >
> > ---henry
> >
> > --- colorant <colorant@163.com> wrote:
> >
> >> Hi
> >>
> >> I am not sure is this the proper place to put
> up
> >> this question, if not ,
> >> please correct me.
> >>
> >> I was trying to run bluez on our board with
> bc4
> >> chip. This chip need to
> >> set pskey before it can run
> >>
> >> I use hciattach and hciconfig to bring up the
> >> hci0 interface.
> >>
> >> Then I try hcitool hci0 scan with my earphone
> >> open.
> >>
> >> Nothing happend.
> >>
> >> while, if I using CSR's bchs a2dp demo , it's
> >> ok, I can play music. say
> >> hardware is ok.
> >>
> >> My question is :
> >>
> >> 1. To enable bluez with csr chip, is there
> >> anything need to do vs the
> >> standard kernel and bluez package ? Some config
> >> need?
> >>
> >> 2. Did I need to place the bootrap init
> sequence
> >> for the bc4 chip in
> >> some place if I using bluez ? say in kernel or in
> >> the bluez user space
> >> scripts? Or , the standard kernel and bluez
> utility
> >> already hand it, But I
> >> just do the wrong way ?
> >>
> >>
> >> Many thanks.
> >> Raymond
> >>
> >>
> >>
> >>
> >>
> >
>
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> >
> >
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