Digital Systems 2 (DIG200S) FISA Project 2020-1 Using a 555 timer, an 8-bit synchronous counter and an 8-bit R-2R ladder DAC, design and construct a waveform generator that can be switched to produce the following waveform outputs. Only three switches or less may be used. The 555 timer frequency must be adjustable with a variable resistor so that the final waveform output frequency range is 100 Hz to 1 kHz. 1. A sawtooth wave m 2. A reverse sawtooth wave 3. A triangular wave Write a report detailing your design and the operation of the circuits, with the following chapters: 1. Introduction 2. 555 Timer Design and Operation 3. Counter Design Operation 4. DAC Design and Operation 5. The Complete Circuit 6. Testing and test results 7. Circuit as built 8. Conclusion Chapters 6 to 8, together with a demonstration of your working circuit will be assessed as the 20% weighted practical component of the subject. Chapters 1 to 5 will be assessed as the 50% FISA component of the subject. The marking rubric that follows will be used to assess your work and you should refer to the marking rubric to guide your work. Attach the marking rubric as the first page of your report pdf file and enter your initials surname and student number. Reports must be submitted as a pdf file on Blackboard by the 6th September 2020.