# 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 FootprintWizardBase import PadArray as PA class RowedFootprint(FootprintWizardBase.FootprintWizard): def GenerateParameterList(self): # defaults for a ZIP package self.AddParam("Pads", "pad count", self.uInteger, 24) self.AddParam("Pads", "line count", self.uInteger, 2) self.AddParam("Body", "silkscreen inside", self.uBool, False) self.AddParam("Body", "courtyard margin", self.uMM, 0.5, min_value=0.2) @property def pads(self): return self.parameters['Pads'] @property def body(self): return self.parameters['Body'] def CheckParameters(self): # TODO - implement custom checks pass def BuildThisFootprint(self): pad_count = self.pads['pad count'] pad_Vsize = self.pads['pad height'] pad_Hsize = self.pads['pad width'] line_pitch = self.pads['line spacing'] pad_pitch = self.pads['pitch'] line_count = self.pads['line count'] if line_count == 1: singleline = True else: singleline = False # add in the pads pad = self.GetPad() array = PA.PadZGridArray(pad, pad_count, line_count, line_pitch, pad_pitch) array.AddPadsToModule(self.draw) # draw the Silk Screen pads_per_line = pad_count // line_count row_length = pad_pitch * (pads_per_line - 1) # fenceposts ssx_offset = pad_Hsize / 2 + self.body['outline x margin'] ssy_offset = pad_Vsize / 2 + self.body['outline y margin'] pin1posX = pad_pitch * (pad_count - 1) / 2 pin1posY = line_pitch * (line_count - 1) / 2 leftx = pin1posX + ssx_offset lowy = pin1posY + ssy_offset cornery = lowy # body inside pads is possible only for 2 rows. # for other values, there is no room linew = self.draw.GetLineThickness() if self.body['silkscreen inside'] and line_count == 2: cornery = pin1posY - ssy_offset if cornery < linew: cornery = linew thick = self.draw.GetLineThickness() self.draw.SetLineThickness( pcbnew.FromMM( 0.12 ) ) #Default per KLC F5.1 as of 12/2018 self.DrawBox(leftx*2, cornery*2) # Courtyard cmarginx = self.body['courtyard margin'] cmarginy = cmarginx self.draw.SetLayer(pcbnew.F_CrtYd) sizex = (pin1posX + cmarginx) * 2 + pad_Hsize + thick sizey = (pin1posY + cmarginy) * 2 + pad_Vsize + thick # round size to nearest 0.1mm, rectangle will thus land on a 0.05mm grid sizex = pcbnew.PutOnGridMM(sizex, 0.1) sizey = pcbnew.PutOnGridMM(sizey, 0.1) # set courtyard line thickness to the one defined in KLC self.draw.SetLineThickness(pcbnew.FromMM(0.05)) self.draw.Box(0, 0, sizex, sizey) # restore line thickness to previous value self.draw.SetLineThickness(pcbnew.FromMM(thick)) #reference and value text_size = self.GetTextSize() # IPC nominal t_posy = lowy + text_size self.draw.Value(0, t_posy, text_size) self.draw.Reference(0, -t_posy, text_size) # set SMD attribute if self.GetName() == "ZIP": self.module.SetAttributes(pcbnew.PAD_ATTRIB_PTH) elif self.GetName() == "ZOIC": self.module.SetAttributes(pcbnew.PAD_ATTRIB_SMD) def DrawBox(self, sizex, sizey): # ---------- # | 2 4 6 8| # |1 3 5 7 | # \--------- setback = pcbnew.FromMM(1) if setback > sizey/2: setback = sizey/2 self.draw.BoxWithDiagonalAtCorner(0, 0, sizex, sizey, setback, self.draw.flipY) class ZIPWizard(RowedFootprint): def GetName(self): return "ZIP" def GetDescription(self): return "N lines Zip Package Footprint Wizard" def GenerateParameterList(self): RowedFootprint.GenerateParameterList(self) self.AddParam("Pads", "pitch", self.uMM, 1.27) self.AddParam("Pads", "pad width", self.uMM, 1.2) self.AddParam("Pads", "pad height", self.uMM, 2) self.AddParam("Pads", "line spacing", self.uMM, 2.54) self.AddParam("Pads", "drill size", self.uMM, 0.8) self.AddParam("Body", 'outline x margin', self.uMM, 1) self.AddParam("Body", 'outline y margin', self.uMM, 0.5) def GetValue(self): rows = self.pads['line count'] pad_cnt = self.pads['pad count'] if rows == 1: name = "SIP" elif rows == 2: name = "ZIP" else: # triple and up aren't really a thing, but call it something! name = "xIP" return "%s-%d" % (name, pad_cnt) def GetPad(self): pad_Vsize = self.pads['pad height'] pad_Hsize = self.pads['pad width'] drill = self.pads['drill size'] return PA.PadMaker(self.module).THPad( pad_Vsize, pad_Hsize, drill, shape=pcbnew.PAD_SHAPE_OVAL) ZIPWizard().register() class ZOICWizard(RowedFootprint): def GetName(self): return "ZOIC" def GetDescription(self): return "ZOIC, etc, Footprint Wizard" def GetValue(self): return "%s-%d" % ("ZOIC-", self.pads['pad count']) def GenerateParameterList(self): RowedFootprint.GenerateParameterList(self) #and override some of them self.AddParam("Pads", "pitch", self.uMM, 0.6) self.AddParam("Pads", "pad width", self.uMM, 0.6) self.AddParam("Pads", "pad height", self.uMM, 1.8) self.AddParam("Pads", "line spacing", self.uMM, 5.2) self.AddParam("Body", "outline x margin", self.uMM, 0.5) self.AddParam("Body", "outline y margin", self.uMM, 1) def GetPad(self): pad_Vsize = self.pads['pad height'] pad_Hsize = self.pads['pad width'] return PA.PadMaker(self.module).SMDPad( pad_Vsize, pad_Hsize, shape=pcbnew.PAD_SHAPE_RECT) ZOICWizard().register()