git.gag.com Git - hw/altusmetrum/blob - packages/hvqfn33.5c

   1 /*
   2  * Copyright © 2013 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 process_clearance = 0.26;
  22
  23 real package_width = 5;
  24 real package_height = 5;
  25 real pad_spacing = 0.5;         /* P */
  26 real pad_height = 0.85;         /* C */
  27 real pad_width = 0.27;          /* D */
  28 real pad_center_x = 5.25 / 2;   /* Gx/2 */
  29 real pad_center_y = 5.25 / 2;   /* Gy/2 */
  30
  31 real center_width = 3.75;       /* SLx */
  32 real center_height = 3.75;      /* SLy */
  33
  34 real center_drill = 0.015 * 25.4;
  35 real center_mask = 0.60 / 2;
  36
  37 real center_space = 1.1;
  38
  39 int num_pad = 8;        /* per side */
  40
  41 real pad_off(int n) {
  42         return pad_spacing * (n - (num_pad - 1) / 2);
  43 }
  44
  45 element_start("hvqfn33");
  46
  47 for (pad = 0; pad < num_pad; pad++) {
  48         /* left side (1-8) */
  49
  50         pad_mm(-pad_center_x,
  51                pad_off(pad),
  52                pad_height,
  53                pad_width,
  54                sprintf("%d", pad + 1),
  55                sprintf("%d", pad + 1));
  56
  57         /* bottom (9-16) */
  58
  59         pad_mm(pad_off(pad),
  60                pad_center_y,
  61                pad_width,
  62                pad_height,
  63                sprintf("%d", pad + 9),
  64                sprintf("%d", pad + 9));
  65
  66         /* right (17-24) */
  67
  68         pad_mm(pad_center_x,
  69                -pad_off(pad),
  70                pad_height,
  71                pad_width,
  72                sprintf("%d", pad + 17),
  73                sprintf("%d", pad + 17));
  74
  75         /* top (25-32) */
  76
  77         pad_mm(-pad_off(pad),
  78                -pad_center_y,
  79                pad_width,
  80                pad_height,
  81                sprintf("%d", pad + 25),
  82                sprintf("%d", pad + 25));
  83 }
  84
  85 /* center */
  86
  87 pad_mm_clear_mask_options(0, 0, center_width, center_height, process_clearance, 0,
  88                           "33", "33", "square,nopaste");
  89
  90
  91 real clear_top = center_space * 0.5 + center_mask;
  92 real clear_bottom = center_height / 2;
  93 real clear_height = clear_bottom - clear_top;
  94 real clear_y = (clear_top + clear_bottom) / 2;
  95
  96 for (y = -1; y <= 1; y+= 2) {
  97         pad_mm_clear_mask_options(0, y * clear_y, center_width, clear_height,
  98                                   0, clear_height, "33", "33", "square,nopaste");
  99
 100         pad_mm_clear_mask_options(y * clear_y, 0, clear_height, center_height,
 101                                   0, clear_height, "33", "33", "square,nopaste");
 102 }
 103
 104 real hole_pos = 0.5 * center_space;
 105 real strip_top = -hole_pos + center_mask;
 106 real strip_bot = hole_pos - center_mask;
 107 real strip_size = strip_bot - strip_top;
 108
 109 pad_mm_clear_mask_options(0, 0, center_width, strip_size,
 110                           0, strip_size, "33", "33", "square,nopaste");
 111
 112 pad_mm_clear_mask_options(0, 0, strip_size, center_height,
 113                           0, strip_size, "33", "33", "square,nopaste");
 114
 115 /* center solder spots */
 116
 117 for (y = -1; y <= 1; y += 1) {
 118         for (x = -1; x <= 1; x += 1) {
 119                 pad_mm_clear_mask_options(x * center_space, y * center_space,
 120                                           center_mask*2, center_mask*2, 0, center_mask * 2, "33", "33", "");
 121         }
 122 }
 123
 124 /* center holes */
 125
 126 for (y = -0.5; y <= 0.5; y += 1) {
 127         for (x = -0.5; x <= 0.5; x += 1) {
 128                 pin_mm_clear_mask_options(x * center_space, y * center_space,
 129                                           center_drill, center_mask, 0.012 * 25.4, 0, "33", "33",
 130                                           "square,via");
 131         }
 132 }
 133
 134 /* outline */
 135
 136 rect(-package_width/2, -package_height/2, package_width, package_height);
 137
 138 dot_off = 0.3;
 139 dot_x = -package_width/2 - dot_off;
 140 dot_y = -package_height/2 - dot_off;
 141
 142 line(dot_x, dot_y, dot_x, dot_y);
 143
 144 element_end();