Re: Problem (toggle failure) with DS2408

Cliff Brake <cbrake.list-Bpo/[email protected]>
Newsgroups gmane.comp.hardware.microcontrollers.tini
Organization FOM Systems
Message-ID <[email protected]>
On Thursday 22 January 2004 11:33 am, Alexander Baxevanis wrote:
> Hello,
>
> I am using the TINIm400 module with the TINIs400 board (Rev B), which
> includes the DS2408 chip for I/O.

<snip>

> The input logic levels are sampled properly (i.e. they show up as HIGH when
> pulled up to Vcc) but toggling the switch fails for all switches.  I have
> also tried to toggle the switches with custom code, but this also fails.
> There is no Java exception being thrown and no other devices on the bus,
> which pretty much rules out the possibility of communication failure.
>
> Do you think this is a hardware problem or am I missing something
> important??

Make sure the DS2408 power-on reset is cleared.

Cliff 

================
FOM Systems
http://fomsystems.com

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