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# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
#
from __future__ import division
import pcbnew
import HelpfulFootprintWizardPlugin as HFPW
import PadArray as PA
class RowedGridArray(PA.PadGridArray):
def NamingFunction(self, x, y):
pad_cnt = self.nx*self.ny
if self.ny == 1:
return x+1
if (y % 2) == 0: # upper row, count down
return pad_cnt-x
else: # lower row, count up
return x+1
class RowedFootprint(HFPW.HelpfulFootprintWizardPlugin):
pad_count_key = 'pas count'
row_count_key = 'row count'
row_spacing_key = 'row spacing'
pad_length_key = 'pad length'
pad_width_key = 'pad width'
pad_pitch_key = 'pad pitch'
silkscreen_inside_key = 'silk screen inside'
outline_x_margin_key = 'outline x margin'
outline_y_margin_key = 'outline y margin'
def GenerateParameterList(self):
# defaults for a DIP package
self.AddParam("Pads", self.pad_count_key, self.uNatural, 24)
self.AddParam("Pads", self.row_count_key, self.uNatural, 2)
self.AddParam("Body", self.silkscreen_inside_key, self.uBool, False)
self.AddParam("Body", self.outline_x_margin_key, self.uMM, 0.5)
self.AddParam("Body", self.outline_y_margin_key, self.uMM, 0.5)
def CheckParameters(self):
self.CheckParamInt("Pads", '*' + self.row_count_key, min_value=1, max_value=2)
self.CheckParamInt(
"Pads", '*' + self.pad_count_key,
is_multiple_of=self.parameters["Pads"]['*' + self.row_count_key])
# can do this internally to parameter manager?
self.CheckParamBool("Body", '*' + self.silkscreen_inside_key)
def BuildThisFootprint(self):
pads = self.parameters["Pads"]
body = self.parameters["Body"]
num_pads = pads['*' + self.pad_count_key]
pad_length = pads[self.pad_length_key]
pad_width = pads[self.pad_width_key]
row_pitch = pads[self.row_spacing_key]
pad_pitch = pads[self.pad_pitch_key]
num_rows = pads['*' + self.row_count_key]
pads_per_row = num_pads // num_rows
# add in the pads
pad = self.GetPad()
array = RowedGridArray(pad, pads_per_row, num_rows, pad_pitch, row_pitch)
array.AddPadsToModule(self.draw)
# draw the Silk Screen
Hsize = pad_pitch * (num_pads / num_rows - 1)
Vsize = row_pitch * (num_rows - 1)
pin1_posY = -Vsize / 2
pin1_posX = -Hsize / 2
pad_length = pads[self.pad_length_key]
pad_width = pads[self.pad_width_key]
ssx_offset = -pad_width / 2 - body[self.outline_x_margin_key]
ssy_offset = -pad_length / 2 - body[self.outline_y_margin_key]
if body['*' + self.silkscreen_inside_key]:
ssy_offset *= -1
ssx = -pin1_posX - ssx_offset
ssy = -pin1_posY - ssy_offset
self.DrawBox(ssx, ssy)
#reference and value
text_size = self.GetTextSize() # IPC nominal
if num_rows == 1:
text_py = ssy + text_size
self.draw.Value(0, -text_py, text_size)
self.draw.Reference(0, text_py, text_size)
else:
text_px = ssx + text_size
# self.draw.Value(text_px, 0, text_size, orientation_degree=90)
self.draw.Value(0, 0, text_size)
self.draw.Reference(-text_px, 0, text_size, orientation_degree=90)
class SDIPWizard(RowedFootprint):
def GetName(self):
return "S-DIP"
def GetDescription(self):
return "Single/Dual Inline Package Footprint Wizard"
def GenerateParameterList(self):
RowedFootprint.GenerateParameterList(self)
self.AddParam("Pads", self.pad_pitch_key, self.uMM, 2.54)
self.AddParam("Pads", self.pad_width_key, self.uMM, 1.2)
self.AddParam("Pads", self.pad_length_key, self.uMM, 2)
self.AddParam("Pads", self.row_spacing_key, self.uMM, 7.52)
self.AddParam("Pads", "drill size", self.uMM, 0.8)
def GetValue(self):
pads = self.parameters["Pads"]
rows = pads['*' + self.row_count_key]
pad_count = pads['*' + self.pad_count_key]
row_dist_mil = pcbnew.Iu2Mils(int(self.parameters["Pads"][self.row_spacing_key])) #int(self.parameters["Pads"][self.row_spacing_key] / 2.54 * 100)
pad_shape = ""
if pads[self.pad_width_key] != pads[self.pad_length_key]:
pad_shape = '_ELL'
if rows == 1:
name = "SIP"
return "%s-%d" % (name, pad_count)
name = "DIP"
return "%s-%d_%d%s" % (name, pad_count, row_dist_mil, pad_shape)
def GetPad(self):
pad_length = self.parameters["Pads"][self.pad_length_key]
pad_width = self.parameters["Pads"][self.pad_width_key]
drill = self.parameters["Pads"]["drill size"]
shape = pcbnew.PAD_SHAPE_CIRCLE
if pad_length != pad_width:
shape = pcbnew.PAD_SHAPE_OVAL
return PA.PadMaker(self.module).THPad(
pad_length, pad_width, drill, shape=shape)
def DrawBox(self, ssx, ssy):
if self.parameters["Pads"]['*' + self.row_count_key] == 2:
# ----------
# |8 7 6 5 |
# > |
# |1 2 3 4 |
# ----------
# draw the notch
notchWidth = ssy/1.5
notchHeight = self.draw.GetLineTickness()*3
# NotchedBox draws the notch on top. Rotate the box 90 degrees
# to have it on the left
self.draw.NotchedBox(0, 0, ssy*2, ssx*2, notchWidth, notchHeight, -90)
else:
# -----------------
# |1|2 3 4 5 6 7 8|
# -----------------
self.draw.Box(0, 0, ssx*2, ssy*2)
#line between pin1 and pin2
pad_pitch = self.parameters["Pads"][self.pad_pitch_key]
pad_cnt = self.parameters["Pads"]['*' + self.pad_count_key]
line_x = ( pad_cnt/2 - 1) * pad_pitch
self.draw.VLine(-line_x, -ssy, ssy * 2)
return ssx, ssy
SDIPWizard().register()
class SOICWizard(RowedFootprint):
def GetName(self):
return "SOIC"
def GetDescription(self):
return "SOIC, MSOP, SSOP, TSSOP, etc, footprint wizard"
def GetValue(self):
pad_count = self.parameters["Pads"]['*' + self.pad_count_key]
return "%s-%d" % ("SOIC", pad_count)
def GenerateParameterList(self):
RowedFootprint.GenerateParameterList(self)
#and override some of them
self.AddParam("Pads", self.pad_pitch_key, self.uMM, 1.27)
self.AddParam("Pads", self.pad_width_key, self.uMM, 0.6)
self.AddParam("Pads", self.pad_length_key, self.uMM, 2.2)
self.AddParam("Pads", self.row_spacing_key, self.uMM, 5.2)
def GetPad(self):
pad_length = self.parameters["Pads"][self.pad_length_key]
pad_width = self.parameters["Pads"][self.pad_width_key]
return PA.PadMaker(self.module).SMDPad(
pad_length, pad_width, shape=pcbnew.PAD_SHAPE_RECT)
def DrawBox(self, ssx, ssy):
# ----------
# |8 7 6 5 |
# |1 2 3 4 |
# \---------
self.draw.BoxWithDiagonalAtCorner(0, 0, ssx*2, ssy*2, pcbnew.FromMM(1))
SOICWizard().register()
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