2 * Copyright © 2012 Keith Packard <keithp@keithp.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License.
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * General Public License for more details.
13 * You should have received a copy of the GNU General Public License along
14 * with this program; if not, write to the Free Software Foundation, Inc.,
15 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
21 real pad_width = 0.55;
22 real pad_height = 0.30;
23 real pad_spacing = 0.50;
25 real pad_x_off = 6.20 / 2;
26 real pad_y_off = 6.20 / 2;
28 real center_width = 5.6;
29 real center_height = 5.6;
31 real package_width = 7;
32 real package_height = 7;
34 real num_pad = 12; /* per side */
36 element_start("ufqfpn-48");
39 return pad_spacing * (n - (num_pad - 1) / 2);
42 real corner(int dx, int dy) {
43 real x = dx * package_width / 2;
44 real y = dy * package_height / 2;
47 line(x, y, x - dx * len, y);
48 line(x, y, x, y - dy * len);
58 line(-package_width/2 + dot_off, -package_height/2 + dot_off,
59 -package_width/2 + dot_off, -package_height/2 + dot_off);
61 for (int pad = 0; pad < num_pad; pad++) {
62 /* left side (1-12) */
64 pad_mm(-pad_x_off - pad_width / 2,
68 sprintf("%d", pad + 1),
69 sprintf("%d", pad + 1));
74 pad_y_off + pad_width / 2,
77 sprintf("%d", pad + 13),
78 sprintf("%d", pad + 13));
80 /* right side (25-36) */
82 pad_mm(pad_x_off + pad_width / 2,
86 sprintf("%d", pad + 25),
87 sprintf("%d", pad + 25));
92 -pad_y_off - pad_width / 2,
95 sprintf("%d", pad + 37),
96 sprintf("%d", pad + 37));
101 real block_width = center_width / pad_blocks;
102 real block_height = center_height / pad_blocks;
104 real block_x(int x) = (x - (pad_blocks - 1)/2) * block_width;
105 real block_y(int y) = (y - (pad_blocks - 1)/2) * block_height;
107 bool via_block(int x, int y) {
108 return (x & 1) == 0 && (y & 1) == 0;
111 real via_hole = mils1002mm(1300);
112 real via_copper = mils1002mm(700);
114 for (int pad_y = 0; pad_y < pad_blocks; pad_y++) {
115 for (int pad_x = 0; pad_x < pad_blocks; pad_x++)
116 if (via_block(pad_x, pad_y)) {
117 pin_mm_space_options(block_x(pad_x), block_y(pad_y),
118 via_hole, via_copper, 0,
119 "GND", "GND", "via");
120 pad_mm_options(block_x(pad_x), block_y(pad_y),
121 block_width, block_height,
122 "GND", "GND","square,nopaste");
124 /* full square of metal */
125 pad_mm_options(block_x(pad_x), block_y(pad_y),
126 block_width, block_height,
127 "GND", "GND","square,nopaste");
128 /* 1/4 full of solder paste */
129 pad_mm_options(block_x(pad_x), block_y(pad_y),
130 block_width/2, block_height/2,
131 "GND", "GND","square");