Re: gEDA-user: GND and Vcc pin on IC 74245

[Csanyi Pal <csanyipal@xxxxxxxxx>]

Hi Werner & John!

On Thu, Sep 08, 2005 at 10:18:07PM +0200, Werner Hoch wrote:
> 
> > On Wed, Sep 07, 2005 at 08:03:46PM -0400, John Doty wrote:
> > > The net attributes aren't promoted to the schematic level, so you
> > > can't edit them there. If you want to edit them, copy the symbol
> > > file to your private symbol directory and then edit (and use) your
> > > new private symbol.
> >
> > I don't want to edit them, but I can't figure out when and how should
> > define the value for Vcc pin 20 of the 74245 IC to have +5V?

> Take a look at the schematic.
> Just place a Vcc and a GND symbol to the nets you like to connect them. 

I have my schematic in the attachment. Where to place +5V and GND 
symbols? (Sorry for the missing attachment!)

> When you create a netlist, all nets with the same netname will be 
> connected. Maybe in your case it's just a blocking capacitor, a power 
> connector or an voltage regulator.

In my case the +5V should come from an USB port of a PC, and the GND is 
at the LPT port DB 25 (pins: 20,21,22,23,24,25)

-- 
Regards,
Paul 
Debian Junior Project, DebianEdu, Moodle ->  :-) :-) :-) :-) :-) :-) :-)
http://www.ektf.hu/~Csanyi.Pal (Up to now, it is in Hungarian only.)

v 20050313 1
C 50200 46100 0 0 0 title-B.sym
C 55500 50700 1 0 0 74245-1.sym
{
T 57200 53900 5 10 1 1 0 6 1
refdes=U?
}
C 59800 56200 1 180 0 DB25-2.sym
{
T 59400 50500 5 10 1 1 180 0 1
refdes=CONN?
}
C 53500 52400 1 180 0 led-1.sym
{
T 52700 52000 5 10 1 1 180 0 1
refdes=LED?
}
C 53500 54100 1 0 0 resistor-2.sym
{
T 53700 54400 5 10 1 1 0 0 1
refdes=R?
}
N 58300 51400 57500 51400 4
N 58300 51800 57900 51800 4
N 57900 51800 57900 51700 4
N 57900 51700 57500 51700 4
N 58300 52200 57900 52200 4
N 57900 52200 57900 52000 4
N 57900 52000 57500 52000 4
N 58300 52600 57900 52600 4
N 57900 52600 57900 52300 4
N 57900 52300 57500 52300 4
N 58300 53000 57900 53000 4
N 57900 53000 57900 52700 4
N 57900 52700 57800 52700 4
N 57800 52700 57800 52600 4
N 57800 52600 57500 52600 4
N 58300 53400 57900 53400 4
N 57900 53400 57900 53100 4
N 57900 53100 57800 53100 4
N 57800 53100 57800 52900 4
N 57800 52900 57500 52900 4
N 58300 53800 57900 53800 4
N 57900 53800 57900 53500 4
N 57900 53500 57800 53500 4
N 57800 53500 57800 53200 4
N 57800 53200 57500 53200 4
N 58300 54200 57900 54200 4
N 57900 54200 57900 53900 4
N 57900 53900 57800 53900 4
N 57800 53900 57800 53600 4
N 57800 53600 57700 53600 4
N 57700 53600 57700 53500 4
N 57700 53500 57500 53500 4
N 59800 55600 59800 53600 4
N 59800 53600 60100 53600 4
N 60100 53600 60100 50300 4
N 52600 50300 60100 50300 4
N 55500 51100 55500 50300 4
C 53500 53600 1 0 0 resistor-2.sym
{
T 53700 53900 5 10 1 1 0 0 1
refdes=R?
}
C 53500 53100 1 0 0 resistor-2.sym
{
T 53700 53400 5 10 1 1 0 0 1
refdes=R?
}
C 53500 52600 1 0 0 resistor-2.sym
{
T 53700 52900 5 10 1 1 0 0 1
refdes=R?
}
C 53500 52100 1 0 0 resistor-2.sym
{
T 53700 52400 5 10 1 1 0 0 1
refdes=R?
}
C 53500 51600 1 0 0 resistor-2.sym
{
T 53700 51900 5 10 1 1 0 0 1
refdes=R?
}
C 53500 51100 1 0 0 resistor-2.sym
{
T 53700 51400 5 10 1 1 0 0 1
refdes=R?
}
C 53500 50600 1 0 0 resistor-2.sym
{
T 53700 50900 5 10 1 1 0 0 1
refdes=R?
}
C 53500 51900 1 180 0 led-1.sym
{
T 52700 51500 5 10 1 1 180 0 1
refdes=LED?
}
C 53500 51400 1 180 0 led-1.sym
{
T 52700 51000 5 10 1 1 180 0 1
refdes=LED?
}
C 53500 50900 1 180 0 led-1.sym
{
T 52700 50500 5 10 1 1 180 0 1
refdes=LED?
}
C 53500 52900 1 180 0 led-1.sym
{
T 52700 52500 5 10 1 1 180 0 1
refdes=LED?
}
C 53500 53400 1 180 0 led-1.sym
{
T 52700 53000 5 10 1 1 180 0 1
refdes=LED?
}
C 53500 53900 1 180 0 led-1.sym
{
T 52700 53500 5 10 1 1 180 0 1
refdes=LED?
}
C 53500 54400 1 180 0 led-1.sym
{
T 52700 54000 5 10 1 1 180 0 1
refdes=LED?
}
N 54400 54200 55500 54200 4
N 55500 54200 55500 53500 4
N 54400 53700 55400 53700 4
N 55400 53700 55400 53200 4
N 55400 53200 55500 53200 4
N 54400 53200 55300 53200 4
N 55300 53200 55300 52900 4
N 55300 52900 55500 52900 4
N 54400 52700 55400 52700 4
N 55400 52700 55400 52600 4
N 55400 52600 55500 52600 4
N 54400 52200 55500 52200 4
N 55500 52200 55500 52300 4
N 54400 51700 54400 52000 4
N 54400 52000 55500 52000 4
N 54400 51200 54500 51200 4
N 54500 51200 54500 51700 4
N 54500 51700 55500 51700 4
N 54400 50700 54600 50700 4
N 54600 50700 54600 51400 4
N 54600 51400 55500 51400 4
N 52600 54200 52600 50300 4
C 56800 54200 1 0 0 5V-plus-1.sym
C 55400 49600 1 0 0 gnd-1.sym