Re: [Discuss-gnuradio] Digital 1

[Oussama Sekkat]

Ok :)
thanks Matt.

 

On 11/15/06, Matt Ettus <address@hidden> wrote:

Oussama Sekkat wrote:
> Hi,
> Quick question: I am using the daughterboards DEBUG IO pins , and I am
> connecting them to my logic analyzer. I have to enter the threshold
> value in my logic analyzer. I can choose between TTL (1.4V) CMOS
> (2.5V) ECL (- 1.3V). I am not sure which one to choose. Right now I
> have it set to a user value of 3.30V, is that the right choice?


All the signals are LVCMOS, 0 to 3.3V.  The correct threshold is 1.65V
(3.3V/2)

Matt