def testLowLowShouldResultInHigh(self):
circuit = Circuit.fromFile("NAND.cir")
circuit.setSignal(SignalWithResistance("A", 0.0, 10))
circuit.setSignal(SignalWithResistance("B", 0.0, 10))
circuit.inspectVoltage('NAND')
circuit.run(200)
self.assertGreater(circuit.getVoltage('NAND'), 4.5)
def testHighHighShouldResultInLow(self):
circuit = Circuit.fromFile("NAND.cir")
circuit.setSignal(SignalWithResistance("A", 5.0, 10))
circuit.setSignal(SignalWithResistance("B", 5.0, 10))
circuit.inspectVoltage('NAND')
circuit.run(200)
self.assertLess(circuit.getVoltage('NAND'), 0.5)
def testShouldSwitchOnIn50ns(self):
circuit = Circuit.fromFile("NAND.cir")
circuit.setSignal(SignalWithResistance("A", 5.0, 10))
circuit.setSignal(DelayedSignal("B", value=0.0, delay=100, resistance=10, startValue=5.0))
circuit.inspectVoltage('NAND')
circuit.run(200, 0.05)
self.assertLess(circuit.getMaxVoltage('NAND', 0.1, 100), 0.5)
self.assertGreater(circuit.getMinVoltage('NAND', 100.05, 200), 4.5)
def setupCircuit(self):
circuit = Circuit.fromFile("ALU.cir")
circuit.setSignal(SignalWithResistance("A", 0.0, 10))
circuit.setSignal(SignalWithResistance("B", 0.0, 10))
circuit.setSignal(SignalWithResistance("C", 0.0, 10))
circuit.setSignal(SignalWithResistance("INV", 0.0, 10))
circuit.inspectVoltage('XOR')
circuit.inspectVoltage('NAND')
circuit.inspectVoltage('NOR')
circuit.inspectVoltage('CARRY')
circuit.inspectVoltage('SUM')
circuit.inspectCurrent('Vs')
return circuit
def setupCircuit(self):
circuit = Circuit.fromFile("ALU.cir")
circuit.setSignal(SignalWithResistance("A", 0.0, 10))
circuit.setSignal(SignalWithResistance("B", 0.0, 10))
circuit.setSignal(SignalWithResistance("C", 0.0, 10))
circuit.setSignal(SignalWithResistance("INV", 0.0, 10))
circuit.inspectVoltage('XOR')
circuit.inspectVoltage('NAND')
circuit.inspectVoltage('NOR')
circuit.inspectVoltage('CARRY')
circuit.inspectVoltage('SUM')
circuit.inspectCurrent('Vs')
return circuit
def testShouldNotUseTooMuchCurrent(self):
circuit = Circuit.fromFile("NAND.cir")
circuit.setSignal(SignalWithResistance("A", 5.0, 10))
circuit.setSignal(SignalWithResistance("B", 5.0, 10))
circuit.inspectCurrent('Vs')
circuit.run(200)
self.assertLess(circuit.getMaxCurrent('Vs'), .001)
circuit.setSignal(SignalWithResistance("A", 0.0, 10))
circuit.run(200)
self.assertLess(circuit.getMaxCurrent('Vs'), 0.001)
circuit.setSignal(SignalWithResistance("B", 0.0, 10))
circuit.run(200)
self.assertLess(circuit.getMaxCurrent('Vs'), 0.001)
circuit.setSignal(SignalWithResistance("A", 5.0, 10))
circuit.run(200)
self.assertLess(circuit.getMaxCurrent('Vs'), 0.001)
