Re: R6k and Ethernet current

Paul,

Thank you for that information. 

I contacted Digi tech support and told them the problem. They replied,
"I checked with engineering and was told this is normal operation for
rabbit 6000 products."

I then told them that a former Rabbit employee said it was a known 
bug and was supposed to be fixed with the release of the RCM6600W.
They replied with, "I checked with software and they don't know of a
library that fixes this issue. They did suggest that the re-spin of
the 6000 chip addresses this issue."

I then asked they thought the re-spin would take place. I'm waiting
for an answer.

Hopefully the battery-killer clock on the R6k will be fixed with the
re-spin too.


Steve

--- In [email protected], "Paul " <lackofbrilliance@...> wrote:
>
> Hi Steve,
> 
> I was a long time Z-World/Rabbit software engineer and the engineering manager responsible for Rabbit development for the last three years prior to Digi's last round of layoffs.  This is a known problem that, if memory serves, was scheduled to be fixed with the Dynamic C release to support the RCM6600W.  You should contact Digi technical support to see if you can get a copy of the library that fixes this problem.  
> 
> - Paul
> 
> 
> --- In [email protected], "seecwriter" <seecwriter@> wrote:
> >
> > For the RCM67XX module, we've noticed an anomaly with current draw
> > when using Ethernet.
> > 
> > When the Ethernet port is connected to a LAN, the total current draw
> > for the computer section (motherboard + RCM67XX) is a steady 350ma.
> > However, if the Ethernet port is not connected, the current fluctuates
> > between 350ma and 500ma. We've traced the increase in current to the
> > call of pd_havelink() that occurs at about a 500ms rate. That 150ma of 
> > extra current seems like a huge increase just to check for a LAN 
> > connection. This pulsing current is affecting our ADC and DAC readings 
> > and settings.
> > 
> > This occurs on all of our modules. Anyone else notice this and/or have
> > any ideas on what to do about it? Adding extra bypass caps hasn't 
> > helped. 
> > 
> > Steve
> >
>