kicad/pcbnew/scripting/plugins/qfp_wizard.py

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from __future__ import division
import pcbnew
import HelpfulFootprintWizardPlugin
import PadArray as PA
class QFPWizard(HelpfulFootprintWizardPlugin.HelpfulFootprintWizardPlugin):
def GetName(self):
return "QFP"
def GetDescription(self):
return "QFP Footprint Wizard"
def GenerateParameterList(self):
self.AddParam("Pads", "n", self.uNatural, 100)
self.AddParam("Pads", "pad pitch", self.uMM, 0.5)
self.AddParam("Pads", "pad width", self.uMM, 0.25)
self.AddParam("Pads", "pad length", self.uMM, 1.5)
self.AddParam("Pads", "vertical pitch", self.uMM, 15)
self.AddParam("Pads", "horizontal pitch", self.uMM, 15)
self.AddParam("Pads", "oval", self.uBool, True)
self.AddParam("Pads", "package width", self.uMM, 14)
self.AddParam("Pads", "package height", self.uMM, 14)
def CheckParameters(self):
self.CheckParamPositiveInt("Pads", "*n", is_multiple_of = 4)
def GetReference(self):
return "QFP %d" % self.parameters["Pads"]["*n"]
def BuildThisFootprint(self):
pads = self.parameters["Pads"]
pad_pitch = pads["pad pitch"]
pad_length = self.parameters["Pads"]["pad length"]
pad_width = self.parameters["Pads"]["pad width"]
v_pitch = pads["vertical pitch"]
h_pitch = pads["horizontal pitch"]
pads_per_row = pads["*n"] // 4
row_len = (pads_per_row - 1) * pad_pitch
h_pad = PA.PadMaker(self.module).SMDPad(pad_width, pad_length, shape = pcbnew.PAD_OVAL)
v_pad = PA.PadMaker(self.module).SMDPad(pad_length, pad_width, shape = pcbnew.PAD_OVAL)
#left row
pin1Pos = pcbnew.wxPoint(-h_pitch / 2, -row_len / 2)
array = PA.PadLineArray(h_pad, pads_per_row, pad_pitch, True, pin1Pos)
array.SetFirstPadInArray(1)
array.AddPadsToModule()
#bottom row
pin1Pos = pcbnew.wxPoint(-row_len / 2, v_pitch / 2)
array = PA.PadLineArray(v_pad, pads_per_row, pad_pitch, False, pin1Pos)
array.SetFirstPadInArray(pads_per_row + 1)
array.AddPadsToModule()
#right row
pin1Pos = pcbnew.wxPoint(h_pitch / 2, row_len / 2)
array = PA.PadLineArray(h_pad, pads_per_row, -pad_pitch, True, pin1Pos)
array.SetFirstPadInArray(2*pads_per_row + 1)
array.AddPadsToModule()
#top row
pin1Pos = pcbnew.wxPoint(row_len / 2, -v_pitch / 2)
array = PA.PadLineArray(v_pad, pads_per_row, -pad_pitch, False, pin1Pos)
array.SetFirstPadInArray(3*pads_per_row + 1)
array.AddPadsToModule()
limX = pads["package width"] / 2
limY = pads["package height"] / 2
inner = (row_len / 2) + pad_pitch
#top left - diagonal
self.draw.Line(-limX, -inner, -inner, -limY)
# top right
self.draw.Polyline([(inner, -limY), (limX, -limY), (limX, -inner)])
# bottom left
self.draw.Polyline([(-inner, limY), (-limX, limY), (-limX, inner)])
# bottom right
self.draw.Polyline([(inner, limY), (limX, limY), (limX, inner)])
QFPWizard().register()