i want to use qucs to start learning VHDL with some simple circuits using the
qucs-vhdl-device. All my attempts fails so far and i want to ask if somewhere
tested examples for using the vhdl device (vhdl-example files) are available
or any of the mailinigslist members might send me such examples by mail.
qucs version 0.0.15, freehdl 0.6-2.1, OpenSuse 11.1
Thank You !
From: Stefan Jahn <stefan@gr...> - 2010-10-15 11:58:21
Am Do, 16.09.2010, 04:24 schrieb Christopher Covington:
> Please see the positive values and negative slope on the dB curve in:
> But the negative values and positive slope of dB in:
> I'm using 0.0.15 on Ubuntu Lucid.
> Might be able to look into the code and potentially fix it in the
> future. Is this by any chance because of the way complex values are
The reason is the complex nature of the input values.
if you want correct dB, then use 20*log10(abs( ??? ))
Best regards, Stefan.