git.gag.com Git - hw/altusmetrum/blob - packages/VQFN-HR-12.5c

   1 /*
   2  * Copyright © 2019 Keith Packard <keithp@keithp.com>
   3  *
   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.
   7  *
   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.
  12  *
  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.
  16  */
  17
  18 load "footprint.5c"
  19 import Footprint;
  20
  21 real small_pad_width = 0.2;
  22 real small_pad_height = 0.6;
  23 real small_pad_x_sep = 0.5;
  24 real small_pad_center_distance = 2.3;
  25 real small_pad_y_off = small_pad_center_distance / 2;
  26
  27 real large_pad_width = 1.05;
  28 real large_pad_height = 0.4;
  29 real large_pad_x_sep = 1.35;
  30 real large_pad_y_sep = 0.7;
  31
  32 real package_width = 2.0;
  33 real package_height = 2.5;
  34
  35 real num_pad = 4;       /* per side */
  36
  37 element_start("VQFN-HR-12");
  38
  39 real corner(int dx, int dy) {
  40         real    x = dx * package_width / 2;
  41         real    y = dy * package_height / 2;
  42         real    len = 0.4;
  43
  44         line(x, y, x - dx * len, y);
  45         line(x, y, x, y - dy * len);
  46 }
  47
  48 corner(-1, -1);
  49 corner(1, -1);
  50 corner(-1, 1);
  51 corner(1, 1);
  52
  53 real dot_off = .3;
  54
  55 line(-package_width/2 - dot_off, -package_height/2 - dot_off,
  56      -package_width/2 - dot_off, -package_height/2 - dot_off);
  57
  58 /* small pads */
  59 real small_x(int x)
  60 {
  61         return -1.5 * small_pad_x_sep + x * small_pad_x_sep;
  62 }
  63
  64 real small_y(int y)
  65 {
  66         return -small_pad_y_off + y * 2 * small_pad_y_off;
  67 }
  68
  69 for (int y = 0; y < 2; y++) {
  70         for (int x = 0; x < 4; x++) {
  71                 int pad;
  72                 if (y > 0)
  73                         pad = 3 + x;
  74                 else
  75                         pad = 12 - x;
  76                 string name = sprintf("%d", pad);
  77                 pad_mm(small_x(x), small_y(y),
  78                        small_pad_width,
  79                        small_pad_height,
  80                        name,
  81                        name);
  82         }
  83 }
  84
  85 /* large pads */
  86 real large_x(int x)
  87 {
  88         return -large_pad_x_sep / 2 + large_pad_x_sep * x;
  89 }
  90
  91 real large_y(int y)
  92 {
  93         return -large_pad_y_sep / 2 + large_pad_y_sep * y;
  94 }
  95
  96 for (int y = 0; y < 2; y++) {
  97         for (x = 0; x < 2; x++) {
  98                 int pad;
  99                 if (x > 0)
 100                         pad = 8 - y;
 101                 else
 102                         pad = 1 + y;
 103                 string name = sprintf("%d", pad);
 104                 pad_mm(large_x(x), large_y(y),
 105                        large_pad_width,
 106                        large_pad_height,
 107                        name,
 108                        name);
 109         }
 110 }
 111
 112 element_end();