Lpc2000

Hello

In a circuit using a CS8900A connected to a LPC2292, I have a problem.

After a power up, the CS8900 do not accept ethernet packets for a time 
variable, but tipicaly of 20-30sec.

After that, the circuit work correctly, accepting soft resets.

I have checked the hardware, the crystal stability, etc, and all seem 
be ok.

Have anybody experienced this problem?

Thanks in advance.

Angel

Hi Angel,

Do I remember correctly that some ethernet interface are able to detect
an inversion of the 2 communication wires,
and then correct for this,
but it needs one or two messages (generally some *milli*seconds) ?

HTH,
kind regards
Daniel

  ----- Original Message ----- 
  From: Angel Sanchez 
  To: lpc2000@yahoogroups.com 
  Sent: Wednesday, August 03, 2005 10:03 AM
  Subject: [lpc2000] LPC2292 & CS8900


  Hello

  In a circuit using a CS8900A connected to a LPC2292, I have a problem.

  After a power up, the CS8900 do not accept ethernet packets for a time 
  variable, but tipicaly of 20-30sec.

  After that, the circuit work correctly, accepting soft resets.

  I have checked the hardware, the crystal stability, etc, and all seem 
  be ok.

  Have anybody experienced this problem?

  Thanks in advance.

  Angel




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[Non-text portions of this message have been removed]

Thanks Daniel, but the problem seem be another. The delay is about 20-
30 SECONDS.

Regards
Angel

--- In lpc2000@yahoogroups.com, "Daniel Gelbgras" 
<daniel.gelbgras@s...> wrote:
> Hi Angel,
> 
> Do I remember correctly that some ethernet interface are able to 
detect
> an inversion of the 2 communication wires,
> and then correct for this,
> but it needs one or two messages (generally some *milli*seconds) ?
> 
> HTH,
> kind regards
> Daniel
> 
> 
>   ----- Original Message ----- 
>   From: Angel Sanchez 
>   To: lpc2000@yahoogroups.com 
>   Sent: Wednesday, August 03, 2005 10:03 AM
>   Subject: [lpc2000] LPC2292 & CS8900
> 
> 
>   Hello
> 
>   In a circuit using a CS8900A connected to a LPC2292, I have a 
problem.
> 
>   After a power up, the CS8900 do not accept ethernet packets for a 
time 
>   variable, but tipicaly of 20-30sec.
> 
>   After that, the circuit work correctly, accepting soft resets.
> 
>   I have checked the hardware, the crystal stability, etc, and all 
seem 
>   be ok.
> 
>   Have anybody experienced this problem?
> 
>   Thanks in advance.
> 
>   Angel
> 
> 
> 
> 
>   SPONSORED LINKS Microcontrollers  Microprocessor  Intel 
microprocessors  
>         Pic microcontrollers  8085 microprocessor  
> 
> 
> --------------------------------------------------------------------
----------
>   YAHOO! GROUPS LINKS 
> 
>     a..  Visit your group "lpc2000" on the web.
>       
>     b..  To unsubscribe from this group, send an email to:
>      lpc2000-unsubscribe@yahoogroups.com
>       
>     c..  Your use of Yahoo! Groups is subject to the Yahoo! Terms 
of Service. 
> 
> 
> --------------------------------------------------------------------
----------

> 
> 
> 
> [Non-text portions of this message have been removed]