Implement RS flip-flop logic using if statement and variables

Challenge - Implement RS flip-flop logic using if statement and variables

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Skills Required

• Setup python development environment
• Basic Printing in Python
• Commenting in Python
• Managing Variables in python
• Boolean and Logical Operations on variables in Python
• ‘if’, ‘else’, ‘elif’ condition in python

Please make sure to go through all the skills mentioned above to understand and execute the steps mentioned below

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Truth table of RS flip-flop

In order to implement an RS flip-flop, we need to implement its truth table

Python implementation of RS flip-flop

• We will use 4 variables to store and manipulate the values of 2 inputs, current state and next state

# storing initial states and inputs in variables
inp1 = 0
inp2 = 1
prevState = 1
nextState = None

# RS flip-flop truth table implementation
if inp1==0 and inp2==0:
	nextState = prevState
elif inp1==0 and inp2==1:
	nextState = 0
elif inp1==1 and inp2==0:
	nextState = 1
else:
	print('Invalid input provided')
	nextState = None

if nextState != None:
	print("The next state is {0}".format(nextState))
else:
	print("Unable to produce next state, please provide valid inputs and states...")

print("Execution complete...")

• Run the code using menu Run -> Run Without Debugging
• You should see the following output

The next state is 0
Execution complete...

You can also change the variable values and execute to see different outputs printed in the console

Video

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