99 lines
3.4 KiB
Python
99 lines
3.4 KiB
Python
# -*- coding: utf-8 -*-
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from ..Hurricane import DataBase, UpdateSession, DbU, Box
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from ..helpers import trace
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from ..helpers.io import catch
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#setTraceLevel( 1000 )
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try:
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from .. import Analog
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from . import getRules, toUnity, paramsmatrix
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from .stack import Stack
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except Exception as e:
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catch( e )
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def checkCoherency ( device, bbMode ):
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message = '[ERROR] DifferentialPair.checkCoherency():\n'
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techno = DataBase.getDB().getTechnology()
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rules = getRules()
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W = device.getParameter( 'W' ).getValue()
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M = device.getParameter( 'M' ).getValue()
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mMax = W // rules.transistorMinW
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if M > mMax:
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message += \
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' W/M ratio must be greater than transistor minimal width (%s)\n' \
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' Please increase W or decrease M.' \
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% DbU.getValueString(rules.transistorMinW)
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return False, message
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Mint = device.getParameter( 'Mint' ).getValue()
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if Mint != 2:
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message += ' For interdigitaded layout style, Mint *must* be equal to 2 (not %d)\n' % Mint
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return False, message
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return True, ''
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def layout ( device, bbMode ):
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trace( 100, ',+', '\tWIP_DP.layout() called.\n' )
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nerc = device.getParameter( 'NERC' ).getValue()
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nirc = device.getParameter( 'NIRC' ).getValue()
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stack = Stack( device, nerc, nirc )
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bw = str(device.getParameter( 'B.w' ).getValue())
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d1w = str(device.getParameter( 'D1.w' ).getValue())
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d2w = str(device.getParameter( 'D2.w' ).getValue())
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g1w = str(device.getParameter( 'G1.w' ).getValue())
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g2w = str(device.getParameter( 'G2.w' ).getValue())
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sw = str(device.getParameter( 'S.w' ).getValue())
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diffMap = { 'D1w':str(device.getParameter( 'D1.w' ).getValue())
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, 'D2w':str(device.getParameter( 'D2.w' ).getValue())
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, 'Sw' :str(device.getParameter( 'S.w' ).getValue())
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, 'G1w':str(device.getParameter( 'G1.w' ).getValue())
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, 'G2w':str(device.getParameter( 'G2.w' ).getValue())
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, 'Bw' :str(device.getParameter( 'B.w' ).getValue())
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}
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M = device.getM()
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remain = M % device.getMint()
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westWirings = ''
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eastWirings = ''
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for i in range(device.getExternalDummy()):
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westWirings = westWirings + 'B.bX.{Bw} B.bX.{Bw} '
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eastWirings = ' B.bX.{Bw} B.bX.{Bw}' + eastWirings
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if remain:
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westWirings = westWirings + 'D1.b1.{D1w} G1.b0.{G1w} '
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eastWirings = ' G2.t0.{G2w} D2.t1.{D2w}' + eastWirings
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westWirings = westWirings + 'S.b2.{Sw} '
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mintWirings = ''
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for i in range( (M // device.getMint())*2 ):
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if (i + remain) % 2: mintWirings += 'G2.t0.{G2w} D2.t1.{D2w} G2.t0.{G2w} S.b2.{Sw} '
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else: mintWirings += 'G1.b0.{G1w} D1.b1.{D1w} G1.b0.{G1w} S.b2.{Sw} '
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wirings = westWirings + mintWirings + eastWirings
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stack.setWirings( wirings.format( **diffMap ) )
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stack.doLayout ( bbMode )
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paramsMatrix = paramsmatrix.ParamsMatrix()
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paramsMatrix.setGlobalTransistorParams( toUnity(stack.w)
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, toUnity(stack.L)
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, device.getM()
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, stack.boundingBox
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)
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paramsMatrix.setStacks( [ stack ] )
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trace( 100, '++' )
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paramsMatrix.trace()
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trace( 100, '---' )
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return paramsMatrix.getMatrix()
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