[Soekris] pci card Troubles in soekris net4501

Fri Aug 25 14:07:10 UTC 2006

Hello

I have a similar problem.
I tried to connect PCI to PCMCIA to connect my CDMA AirCard.

Anyone can help me on this?
My advance thanks.

-- 
Thanks
Manickam Murugan
Admin at easybrowsing.com

--------------------------------------------------------------------------------------------------------------------------------------------------
*Ondra Holecek* -- [ Show
headers<http://archive.netbsd.se/?ml=soekris-tech&a=2006-04&t=1910104#>]
------------------------------
*Subject: *[Soekris] pci card in soekris net4501
*From:* Ondra Holecek <bln(-at-)deprese.net>
*Id:* 443665B9.4020405 at deprese.net
*Date:* 2006-04-07 15:14:33

hello,

i have 3.3V PCI card with two serial ports and one paralel port (SUNIX 407X
2S/1P)

for system i use flash cards with freebsd 5/6.

if i use the PCI in soekris, i cannot communicate witch card's serial
ports, but if i use the same card and same flash in PC, all is working
correctly.

when i connect (pci) serial port with my notebook, on soekris i can see
incomming data but cannot send data to notebook.

does anybody have similar problem?

does anybody use any other PCI/PCMCIA card with two serial ports on
soekris+freebsd?

thank you for help
Ondra
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------------------------------
*Andrew Kopeyko* -- [ Show
headers<http://archive.netbsd.se/?ml=soekris-tech&a=2006-04&t=1910104#>]
------------------------------
*Subject: *Re: [Soekris] pci card in soekris net4501
*From:* Andrew Kopeyko <kaa(-at-)rambler-co.ru>
*Id:* 20060407172108.K88966 at park.rambler.ru
*Date:* 2006-04-07 15:28:13

On Fri, 7 Apr 2006, Ondra Holecek wrote:

> hello,
>
> i have 3.3V PCI card with two serial ports and one paralel port (SUNIX 407X
> 2S/1P)
>
> for system i use flash cards with freebsd 5/6.
>
> if i use the PCI in soekris, i cannot communicate witch card's serial
> ports, but if i use the same card and same flash in PC, all is working
> correctly.

AFAIK, PCI connector must have +5\3.3V and +12V power lines both.

PC does have them all, while soekris hardware has only +3.3V lines

Serial ports use +-12V on signal lines - so they fails on soekris
;-((

> when i connect (pci) serial port with my notebook, on soekris i can see
> incomming data but cannot send data to notebook.

Because incoming (for soekris) data line is powered by notebook. With full
12V voltage.

> does anybody have similar problem?
>
> does anybody use any other PCI/PCMCIA card with two serial ports on
> soekris+freebsd?

Nobody will success without additional external power supply.

-- 
Best regards,
Andrew Kopeyko <kaa(-at-)rambler-co.ru>
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------------------------------
*Stuart Henderson* -- [ Show
headers<http://archive.netbsd.se/?ml=soekris-tech&a=2006-04&t=1910104#>]
------------------------------
*Subject: *Re: [Soekris] pci card in soekris net4501
*From:* Stuart Henderson <stu(-at-)spacehopper.org>
*Id:* 20060407142103.GI14545 at bootes.spacehopper.org
*Date:* 2006-04-07 16:21:04

On 2006/04/07 15:14, Ondra Holecek wrote:
> when i connect (pci) serial port with my notebook, on soekris i can see
> incomming data but cannot send data to notebook.

Look at the TXD line from the card with a Voltmeter.

If there's a low voltage present you could build a circuit
with a max3232 or similar device. Alternatively it's rumoured
that some USB RS232 adapters can work with a low voltage
signal (I haven't found one yet, but if you have some
available, it's worth trying them..)

If there's no voltage present at all, the card probably
requires something that's not supplied by the 4501 (maybe
+/-12v or it may want more power at +5V than is available).

Maybe you could either arrange some other way to feed the
card with the voltages it wants, or switch to 4801 (which
provides PCI cards with the other power lines - see manual
section 1.2).

Note that a "3.3V PCI card" usually is the *signalling*
voltage; power requirements are listed separately (or not
at all, in many cases) and it's quite possible to have
a3.3V-signalling card needing +5V or +/-12V power.

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-- 
Thanks
Manickam Murugan
Admin at easybrowsing.com
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