class IC_7400:
"""
This is a Quad 2 input NAND gate IC
"""
def __init__(self):
self.pins = [None,0,0,None,0,0,None,0,None,0,0,None,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:
sys.exit("ERROR: there are only 14 pins in this IC")
self.pins[pin_no] = pin_value
def run(self):
output = {}
output[3] = self.gates.NAND(self.pins[1],self.pins[2])
output[6] = self.gates.NAND(self.pins[4],self.pins[5])
output[8] = self.gates.NAND(self.pins[9],self.pins[10])
output[11] = self.gates.NAND(self.pins[12],self.pins[13])
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_741G03:
'''
This is a single 2 input NAND gate IC
'''
def __init__(self):
self.pins = [None,0,0,0,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>5:
sys.exit("ERROR: there are only 5 pins in this IC")
self.pins[pin_no] = pin_value
def run(self):
output = {}
output[4] = self.gates.NAND(self.pins[1],self.pins[2])
if self.pins[3] == 0 and self.pins[5] == 1:
return output
else:
print "Ground and VCC pins have not been configured correctly."
class IC_7444:
'''
This is an excess-3 gray code to Decimal decoder
Excess-3 gray code digits are in order of A B C D, where pin 15 = A and pin 12 = D
'''
#Datasheet here, http://www.datasheetarchive.com/dlmain/Datasheets-8/DSA-151326.pdf
def __init__(self):
self.pins = [
None, None, None, None, None, None, None, 0, None, None, None, 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 > 16:
raise Exception("ERROR: There are only 16 pins in this IC")
self.pins[pin_no] = pin_value
def run(self):
output = {}
inputlist = []
for i in xrange(12, 16, 1):
inputlist.append(self.pins[i])
invalidlist = [[0, 0, 0, 0], [0, 0, 0, 1], [0, 0, 1, 1], [1, 0, 0, 0],
[1, 0, 0, 1], [1, 0, 1, 1]]
if inputlist in invalidlist:
raise Exception("ERROR: Invalid Pin configuration")
output[1] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.pins[14],
self.gates.NOT(self.pins[13]),
self.gates.NOT(self.pins[12]))
output[2] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.pins[14], self.pins[13],
self.gates.NOT(self.pins[12]))
output[3] = self.gates.NAND((self.pins[15]),
self.pins[14], self.pins[13],
self.gates.NOT(self.pins[12]))
output[4] = self.gates.NAND(self.pins[15],
self.gates.NOT(self.pins[14]),
self.pins[13],
self.gates.NOT(self.pins[12]))
output[5] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.gates.NOT(self.pins[14]),
self.pins[13],
self.gates.NOT(self.pins[12]))
output[6] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.gates.NOT(self.pins[14]),
self.pins[13], self.pins[12])
output[7] = self.gates.NAND(self.pins[15],
self.gates.NOT(self.pins[14]),
self.pins[13], self.pins[12])
output[9] = self.gates.NAND(self.pins[15], self.pins[14],
self.pins[13], self.pins[12])
output[10] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.pins[14], self.pins[13],
self.pins[12])
output[11] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.pins[14],
self.gates.NOT(self.pins[13]),
self.pins[12])
if self.pins[8] == 0 and self.pins[16] == 1:
return output
else:
print "Ground and VCC pins have not been configured correctly. "
class IC_7442:
'''
This is a BCD to Decimal decoder
BCD Digits are in order of A B C D where pin 15 = A, pin 12 = D
'''
#Datasheet here, http://pdf1.alldatasheet.com/datasheet-pdf/view/126658/TI/SN7443.html
def __init__(self):
self.pins = [
None, None, None, None, None, None, None, 0, None, None, None, 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 > 16:
raise Exception("ERROR: There are only 16 pins in this IC")
self.pins[pin_no] = pin_value
def run(self):
output = {}
inputlist = []
for i in xrange(12, 16, 1):
inputlist.append(self.pins[i])
invalidlist = [[1, 0, 1, 0], [1, 0, 1, 1], [1, 1, 0, 0], [1, 1, 0, 1],
[1, 1, 1, 0], [1, 1, 1, 1]]
if inputlist in invalidlist:
raise Exception("ERROR: Invalid BCD number")
output[1] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.gates.NOT(self.pins[14]),
self.gates.NOT(self.pins[13]),
self.gates.NOT(self.pins[12]))
output[2] = self.gates.NAND(self.pins[15],
self.gates.NOT(self.pins[14]),
self.gates.NOT(self.pins[13]),
self.gates.NOT(self.pins[12]))
output[3] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.pins[14],
self.gates.NOT(self.pins[13]),
self.gates.NOT(self.pins[12]))
output[4] = self.gates.NAND(self.pins[15], self.pins[14],
self.gates.NOT(self.pins[13]),
self.gates.NOT(self.pins[12]))
output[5] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.gates.NOT(self.pins[14]),
self.pins[13],
self.gates.NOT(self.pins[12]))
output[6] = self.gates.NAND(self.pins[15],
self.gates.NOT(self.pins[14]),
self.pins[13],
self.gates.NOT(self.pins[12]))
output[7] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.pins[14], self.pins[13],
self.gates.NOT(self.pins[12]))
output[9] = self.gates.NAND(self.pins[15],
self.pins[14], self.pins[13],
self.gates.NOT(self.pins[12]))
output[10] = self.gates.NAND(self.gates.NOT(self.pins[15]),
self.gates.NOT(self.pins[14]),
self.gates.NOT(self.pins[13]),
self.pins[12])
output[11] = self.gates.NAND(self.pins[15],
self.gates.NOT(self.pins[14]),
self.gates.NOT(self.pins[13]),
self.pins[12])
if self.pins[8] == 0 and self.pins[16] == 1:
return output
else:
print "Ground and VCC pins have not been configured correctly. "