class IC_7402:
'''
This is a Quad 2 input NOR gate IC
'''
def __init__(self):
self.pins = [None,None,0,0,None,0,0,0,0,0,None,0,0,None,0]
self.gates = Gates()
def setIC(self,pin_conf):
'''
This method takes a dictionary with key:pin_no and value:pin_value
'''
for i in pin_conf:
self.pins[i] = pin_conf[i]
def setPin(self, pin_no, pin_value):
if pin_no<1 or pin_no>14:
sys.exit("ERROR: there are only 14 pins in this IC")
self.pins[pin_no] = pin_value
def run(self):
output = {}
output[1] = self.gates.NOR(self.pins[2],self.pins[3])
output[4] = self.gates.NOR(self.pins[5],self.pins[6])
output[10] = self.gates.NOR(self.pins[8],self.pins[9])
output[13] = self.gates.NOR(self.pins[11],self.pins[12])
if self.pins[7] == 0 and self.pins[14] == 1:
return output
else:
print "Ground and VCC pins have not been configured correctly."
class IC_7451:
'''
This is a dual 2-wide 2-input AND-OR Invert gate
'''
#Datasheet here, http://www.unitechelectronics.com/7451-7497data.htm
def __init__(self):
self.pins = [0, 0, 0, 0, 0, None, 0, None, 0, 0, 0, 0, 0, 0, 0]
self.gates = Gates()
def setIC(self, pin_conf):
'''
This method takes a dictionary with key:pin_no and value:pin_value
'''
for i in pin_conf:
self.pins[i] = pin_conf[i]
def setPin(self, pin_no, pin_value):
if pin_no < 1 or pin_no > 14:
raise Exception("ERROR: there are only 14 pins in this IC")
self.pins[pin_no] = pin_value
def run(self):
output = {}
output[6] = self.gates.NOR(self.gates.AND(self.pins[2], self.pins[3]),
self.gates.AND(self.pins[4], self.pins[5]))
output[8] = self.gates.NOR(
self.gates.AND(self.pins[1], self.pins[13], self.pins[12]),
self.gates.AND(self.pins[11], self.pins[10], self.pins[9]))
if self.pins[7] == 0 and self.pins[14] == 1:
return output
else:
print "Ground and VCC pins have not been configured correctly."
