1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
<html>
<head>
<title>EAGLE Help: CONNECT</title>
</head>
<body bgcolor=white>
<font face=Helvetica,Arial>
<hr>
<i>EAGLE Help</i>
<h1><center>CONNECT</center></h1>
<hr>
<dl>
<dt>
<b>Function</b>
<dd>
Assigns package pads to symbol pins.
<p>
<dt>
<b>Syntax</b>
<dd>
<tt>CONNECT</tt><br>
<tt>CONNECT symbol_name.pin_name pad_name..</tt><br>
<tt>CONNECT pin_name pad_name..</tt>
<p>
</dl>
<b>See also</b> <a href=72.htm>PREFIX</a>,
<a href=64.htm>OPEN</a>,
<a href=35.htm>CLOSE</a>,
<a href=85.htm>SCRIPT</a>
<p>
This command is used in the device editing mode in order to define
the relationship between the pins of a symbol and the pads of the
corresponding package in the library. First of all, it is necessary
to define which package is to be used by means of the PACKAGE command.
<p>
If the CONNECT command is invoked without parameters, a dialog is
presented which allows you to interactively assign the connections.
<p>
<b>Device with one Symbol</b>
<p>
If only one symbol is included in a device, the parameter symbol_name
can be dropped, e.g.:
<pre>
CONNECT gnd 1 rdy 2 phi1 3 irq\ 4 nc1 5...
</pre>
(Note: "\" is normally used to indicate inverted data signals.)
<p>
<b>Device with Several Symbols</b>
<p>
If several symbols are present in a device, parameters must be entered
with symbol_name, pin_name and pad_name each time. For example:
<pre>
CONNECT A.I1 1 A.I2 2 A.O 3;
CONNECT B.I1 4 B.I2 5 B.O 6;
CONNECT C.I1 13 C.I2 12 C.O 11;
CONNECT D.I1 10 D.I2 9 D.O 8;
CONNECT PWR.gnd 7;
CONNECT PWR.VCC 14;
</pre>
In this case, the connections for four NAND gates of a good old 7400
are allocated. The device includes five symbols - A, B, C, D,
and PWR. The gate inputs are named I1 and I2 while the output is named O.
<p>
The CONNECT command can be repeated as often as required. It may be
used with all pin/pad connections or with only certain pins. Each
new CONNECT command overwrites the previous conditions for the relevant
pins.
<p>
<b>Gate or Pin names that contain periods</b>
<p>
If a gate or pin name contains a period, simply enter them without any special
consideration (no quoting or escape characters are necessary).
<p>
<b>Example</b>
<pre>
ed 6502.dev;
prefix 'IC';
package dil40;
connect gnd 1 rdy 2 phi1 3 irq\ 4 nc1 5 nmi\ 6 \
sync 7 vcc 8 a0 9 a1 10 a2 11 a3 12 a4 \
13 a5 14 a6 15 a7 16 a8 17 a9 18 a10 19 \
a11 20 p$0 21 a12 22 a13 23 a14 24 a15 \
25 d7 26 d6 27 d5 28 d4 29 d3 30 d2 31 \
d1 32 d0 33 r/w 34 nc2 35 nc3 36 phi0 37 \
so 38 phi2 39 res\ 40;
</pre>
If a command is continued at the next line, it is advisable to
insert the character "\" at the end of the line to ensure
the following text cannot be confused with an EAGLE command.
<p>
Confusing parameters with commands can also be avoided
by enclosing the parameters in apostrophes.
<hr>
<table width=100% cellspacing=0 border=0><tr><td align=left><font face=Helvetica,Arial>
<a href=index.htm>Index</a>
</font></td><td align=right><font face=Helvetica,Arial size=-1>
<i>Copyright © 2005 CadSoft Computer GmbH</i>
</font></td></tr></table>
<hr>
</font>
</body>
</html>
|
