Am Donnerstag, 9. August 2007 07:02 schrieb Gregg C Levine:
Hello!
Paul, David, (welcome to the group by the way.), the DS2423 counter chip is
a strange animal. It requires an external power supply to run it.
The RAM is not 1W powered, but Vdd powered only. So Vdd acts as an -RESET
input,
Hey Guys!
Thanks very much for your quick responses. I have looked at my wiring.
I have to admit that that's where I initially though the problem might
be.
My DS2423 has Vdd power (5v). The counter inputs are held high by a
pull up resistor. The switch is a hall effect switch which, when
closed,
I'll look.
That the ID is seen suggests that the chip isn't totally fried. The chip
essentially supports two functions: read and write, so it's possible that
the read protocol is in error. (You haven't tested write, I presume).
Paul Alfille
Ok. The current CVS has cleaner code. I haven;t tested it on hardware, so
your observations would be helpful. Can you test on a standard platform?
Paul Alfille
On 8/9/07, Paul Alfille [EMAIL PROTECTED] wrote:
I'll look.
That the ID is seen suggests that the chip isn't totally fried. The chip
On 8/9/07, Paul Alfille [EMAIL PROTECTED] wrote:
Ok. The current CVS has cleaner code. I haven;t tested it on hardware, so
your observations would be helpful. Can you test on a standard platform?
Paul Alfille
On 8/9/07, Paul Alfille [EMAIL PROTECTED] wrote:
I'll look.
That the ID is
