Hello,
On 10/3/06, Peter Wippich <[email protected]> wrote:
> Depending on your system it is most likely that the HW Uart extension is
> not realy supported by the serial driver. I currently only know for sure
> for PXA type system. You need a special HWUART driver to take advantage of
> the HWUART.
There are 4 ARM systems I can have access to :
- A Zaurus 6000, which is a PXA 255
- A Zaurus C860, which is also a PXA 255.
- An Acer N30, but it's a s3c2410, which is quite different.
- A Simpad - however it is a SA 1100, which has no HWUART. Moreover,
its bluetooth module needs some reflashing (which I can't do). It is
on ttySA1 - cf http://www.guylhem.net/r-hardware/simpad/bluetooth/ for
the hardware part, http://opensimpad.org/index.php/Simpad.c for the
software part.
> For a PXA system we may help you out if you insist.
Yes please. I would make a great base for the article.
> Further you may get problems with the RS232 driver chips usualy
> used. If you're able to connect the serial bluetooth module directly to
> the ARM UART lines (Rx / Tx / RTS /CTS) (3 Volt interface without RS232
> driver on both sides) this would be much better.
On the Zaurus 6000, I didn't add the module myself, but I think it's
on 3.3 V directly. It is also on the UART that can be rerouted to
HWUART (FTUART ?)
On the C860, it is directly soldered to the UART lines - yet to ones
of the standard serial port - ttyS0, which I think is STUART (will
check tonight) and which can not be rerouted to HWUART IIRC.
On the N30, it is on ttySAC2, MMIO 0x50008000.
The demo could use either a 2.4 or 2.6 kernel. There is a 2.4 on
the 6000 and the Simpad, and a 2.6 on the N30 and 860, but putting a
2.6 on the 6000 wouldn't be a problem.
Tell me if you need more information.
Guylhem
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Hello
On 10/3/06, Peter Wippich <[email protected]> wrote:
> > - A Zaurus 6000, which is a PXA 255
> > - A Zaurus C860, which is also a PXA 255.
> This two shall work with a HWUART driver. Make sure the BT Chip is
> connected to the BTUART, which is shared with the HWUART (/dev/ttyS1).
Not on the C860: /dev/ttyS0, and neither on the 6000 : /dev/ttyS2
But sharp gives weird names to their serial ports that do not reflect
the uart connection - I will check the addresses directly in the
sourcecode and guess the correct uart=E9
> Ok, but be warned. It will not run out of the box and is only tested with
> 2.6.14 kernel. I've attached the driver source and a modified Kconfig and
> Makefile. This will go to linux/drivers/bluetooth/ . You also have to edit
> the Kconfig to get the driver enabled for your machine type.
I'll try to tweak it and let you know my results. Can I put a kernel
sourcetree somewhere for you to see?
BTW I notice it comes from the ROAD S101. Any news on the device ?
I am eager to see it reaching the market to review it. Last seen on
press releases in Auguest.
Guylhem
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