184 lines
6.6 KiB
Python
184 lines
6.6 KiB
Python
# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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from __future__ import division
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import pcbnew
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import FootprintWizardBase
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class FPC_FootprintWizard(FootprintWizardBase.FootprintWizard):
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def GetName(self):
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return "FPC (SMT connector)"
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def GetDescription(self):
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return "FPC (SMT connector) Footprint Wizard"
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def GetValue(self):
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pins = self.parameters["Pads"]["n"]
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return "FPC_%d" % pins
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def GenerateParameterList(self):
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self.AddParam( "Pads", "n", self.uInteger, 40 )
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self.AddParam( "Pads", "pitch", self.uMM, 0.5 )
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self.AddParam( "Pads", "width", self.uMM, 0.25 )
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self.AddParam( "Pads", "height", self.uMM, 1.6)
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self.AddParam( "Shield", "shield_to_pad", self.uMM, 1.6 )
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self.AddParam( "Shield", "from_top", self.uMM, 1.3 )
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self.AddParam( "Shield", "width", self.uMM, 1.5 )
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self.AddParam( "Shield", "height", self.uMM, 2 )
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# build a rectangular pad
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def smdRectPad(self,module,size,pos,name):
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pad = pcbnew.PAD(module)
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pad.SetSize(size)
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pad.SetShape(pcbnew.PAD_SHAPE_RECT)
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pad.SetAttribute(pcbnew.PAD_ATTRIB_SMD)
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pad.SetLayerSet( pad.SMDMask() )
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pad.SetPosition(pos)
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pad.SetName(name)
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return pad
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def CheckParameters(self):
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#TODO implement custom parameter checking
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pass
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def BuildThisFootprint(self):
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p = self.parameters
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pad_count = int(p["Pads"]["n"])
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pad_width = p["Pads"]["width"]
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pad_height = p["Pads"]["height"]
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pad_pitch = p["Pads"]["pitch"]
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shl_width = p["Shield"]["width"]
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shl_height = p["Shield"]["height"]
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shl_to_pad = p["Shield"]["shield_to_pad"]
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shl_from_top = p["Shield"]["from_top"]
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offsetX = pad_pitch * ( pad_count-1 ) / 2
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size_pad = pcbnew.VECTOR2I( int(pad_width), int(pad_height) )
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size_shld = pcbnew.VECTOR2I(shl_width, shl_height)
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size_text = self.GetTextSize() # IPC nominal
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# Gives a position and size to ref and value texts:
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textposy = pad_height/2 + pcbnew.FromMM(1) + self.GetTextThickness()
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angle_degree = 0.0
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self.draw.Reference( 0, textposy, size_text, angle_degree )
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textposy = textposy + size_text + self.GetTextThickness()
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self.draw.Value( 0, textposy, size_text )
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# create a pad array and add it to the module
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for n in range ( 0, pad_count ):
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xpos = (int)(pad_pitch*n - offsetX)
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pad = self.smdRectPad(self.module,size_pad, pcbnew.VECTOR2I( xpos, 0), str(n+1))
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self.module.Add(pad)
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# Mechanical shield pads: left pad and right pad
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xpos = -shl_to_pad-offsetX
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pad_s0_pos = pcbnew.VECTOR2I( int(xpos), int(shl_from_top) )
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pad_s0 = self.smdRectPad(self.module, size_shld, pad_s0_pos, "0")
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xpos = (pad_count-1) * pad_pitch+shl_to_pad - offsetX
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pad_s1_pos = pcbnew.VECTOR2I( int(xpos), int(shl_from_top) )
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pad_s1 = self.smdRectPad(self.module, size_shld, pad_s1_pos, "0")
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self.module.Add(pad_s0)
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self.module.Add(pad_s1)
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# add footprint outline
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self.draw.SetLineThickness( pcbnew.FromMM( 0.12 ) ) #Default per KLC F5.1 as of 12/2018
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linewidth = self.draw.GetLineThickness()
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margin = linewidth
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# upper line
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posy = -pad_height/2 - linewidth/2 - margin
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xstart = - pad_pitch*0.5-offsetX
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xend = pad_pitch * pad_count + xstart;
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min_y = posy
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max_y = posy
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self.draw.Line( xstart, posy, xend, posy )
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# lower line
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posy = pad_height/2 + linewidth/2 + margin
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max_y = max( max_y, posy )
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self.draw.Line(xstart, posy, xend, posy)
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# around left mechanical pad (the outline around right pad is mirrored/y axis)
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yend = pad_s0_pos.y + shl_height/2 + margin
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max_y = max( max_y, yend )
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self.draw.Line(xstart, posy, xstart, yend)
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self.draw.Line(-xstart, posy, -xstart, yend)
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posy = yend
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xend = pad_s0_pos.x - (shl_width/2 + linewidth + margin*2)
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max_x = -xend
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self.draw.Line(xstart, posy, xend, posy)
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# right pad side
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self.draw.Line(-xstart, posy, -xend, yend)
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# set SMD attribute
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self.module.SetAttributes(pcbnew.PAD_ATTRIB_SMD)
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# vertical segment at left of the pad
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xstart = xend
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yend = posy - (shl_height + linewidth + margin*2)
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self.draw.Line(xstart, posy, xend, yend)
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# right pad side
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self.draw.Line(-xstart, posy, -xend, yend)
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max_y = max( max_y, posy )
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min_y = min( min_y, yend )
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# horizontal segment above the pad
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xstart = xend
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xend = - pad_pitch*0.5-offsetX
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posy = yend
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self.draw.Line(xstart, posy, xend, yend)
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# right pad side
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self.draw.Line(-xstart, posy,-xend, yend)
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# vertical segment above the pad
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xstart = xend
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yend = -pad_height/2 - linewidth/2 - margin
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min_y = min( min_y, yend )
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self.draw.Line(xstart, posy, xend, yend)
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# right pad side
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self.draw.Line(-xstart, posy, -xend, yend)
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# Courtyard
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self.draw.SetLayer(pcbnew.F_CrtYd)
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max_x = max_x + linewidth + margin
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min_y = min_y - linewidth - margin
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max_y = max_y + linewidth + margin
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# round size to nearest 0.1mm, rectangle will thus land on a 0.05mm grid
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max_x = pcbnew.PutOnGridMM(max_x, 0.05)
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max_y = pcbnew.PutOnGridMM(max_y, 0.05)
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min_y = pcbnew.PutOnGridMM(min_y, 0.05)
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# set courtyard line thickness to the one defined in KLC
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self.draw.SetLineThickness(pcbnew.FromMM(0.05))
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self.draw.Line( -max_x, min_y, max_x, min_y )
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self.draw.Line( max_x, min_y, max_x, max_y )
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self.draw.Line( -max_x, max_y, max_x, max_y )
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self.draw.Line( -max_x, min_y, -max_x, max_y )
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FPC_FootprintWizard().register()
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