git.gag.com Git - hw/altusmetrum/blob - packages/ufqfpn48.5c

   1 /*
   2  * Copyright © 2012 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 pad_width = 0.55;
  22 real pad_height = 0.30;
  23 real pad_spacing = 0.50;
  24
  25 real pad_x_off = 6.20 / 2;
  26 real pad_y_off = 6.20 / 2;
  27
  28 real center_width = 5.6;
  29 real center_height = 5.6;
  30
  31 real package_width = 7;
  32 real package_height = 7;
  33
  34 real num_pad = 12;      /* per side */
  35
  36 element_start("ufqfpn-48");
  37
  38 real pad_off(int n) {
  39         return pad_spacing * (n - (num_pad - 1) / 2);
  40 }
  41
  42 real corner(int dx, int dy) {
  43         real    x = dx * package_width / 2;
  44         real    y = dy * package_height / 2;
  45         real    len = 0.4;
  46
  47         line(x, y, x - dx * len, y);
  48         line(x, y, x, y - dy * len);
  49 }
  50
  51 corner(-1, -1);
  52 corner(1, -1);
  53 corner(-1, 1);
  54 corner(1, 1);
  55
  56 real dot_off = .3;
  57
  58 line(-package_width/2 + dot_off, -package_height/2 + dot_off,
  59      -package_width/2 + dot_off, -package_height/2 + dot_off);
  60
  61 for (int pad = 0; pad < num_pad; pad++) {
  62         /* left side (1-12) */
  63
  64         pad_mm(-pad_x_off - pad_width / 2,
  65                pad_off(pad),
  66                pad_width,
  67                pad_height,
  68                sprintf("%d", pad + 1),
  69                sprintf("%d", pad + 1));
  70
  71         /* bottom (13-24) */
  72
  73         pad_mm(pad_off(pad),
  74                pad_y_off + pad_width / 2,
  75                pad_height,
  76                pad_width,
  77                sprintf("%d", pad + 13),
  78                sprintf("%d", pad + 13));
  79
  80         /* right side (25-36) */
  81
  82         pad_mm(pad_x_off + pad_width / 2,
  83                -pad_off(pad),
  84                pad_width,
  85                pad_height,
  86                sprintf("%d", pad + 25),
  87                sprintf("%d", pad + 25));
  88
  89         /* top (37-48) */
  90
  91         pad_mm(-pad_off(pad),
  92                -pad_y_off - pad_width / 2,
  93                pad_height,
  94                pad_width,
  95                sprintf("%d", pad + 37),
  96                sprintf("%d", pad + 37));
  97 }
  98
  99 int pad_blocks = 3;
 100
 101 real block_width = center_width / pad_blocks;
 102 real block_height = center_height / pad_blocks;
 103
 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;
 106
 107 bool via_block(int x, int y) {
 108         return (x & 1) == 0 && (y & 1) == 0;
 109 }
 110
 111 real via_hole = mils1002mm(1300);
 112 real via_copper = mils1002mm(700);
 113
 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");
 123                 } else {
 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");
 132                 }
 133 }
 134
 135 element_end();