Pathway W1000s Excursions

W1004 Emacs

	Excursions
	Using emacs navigation commands (including CONTROL-U), produce an ASCII art image at least forty characters wide and twenty-four characters high. Save your image to a file at the path ~/Experiences/W1004/art.txt. Repeat the above process adding several new images below the first to form a vertical comic strip. References: ASCII art (Wikipedia)

W1016 Logic Composition

Excursions

Seven-Segment LED Consider a 7-segment LED display, as shown. The display is capable of indicating all decimal digits, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and the hexadecimal digits a, b, c, d, e, and f. Constraining your output to a seven-segment display, draw each digit using only the segments provided. Consider a four-bit binary input, representing hexadecimal digits 0-f. Develop a series of logic gates which convert the four-bit input into a seven-segment output, such that the binary number on the four-digit input is correctly represented on the seven-segment display. Save a link to your engineering design in your journal.

W1018 SR Latch

Excursions

While an SR Latch is fully capable of remembering a single bit of information, it's generally not used to build a memory cell because it lacks the ability to perform synchronously with a clock signal. In order to synchronize the data with a clock signal, rather than use a latch, we generally use a device called a "flip-flop". One of the most basic designs is called a D-type Flip Flop. Research a D-type Flip Flop Construct a D-type Flip Flop using Falstad's Editor using only AND, OR, NOT, XOR, NOR, and NAND gates. Export each circuit using the File | Export As Text... option from the menu bar The text contains all of your work for the exercise. Select the entire text, copy it, and paste it into your journal using the correct excursion number. Answer the following questions: What additional functionality does a D-type Flip Flop provide that is unavailable in an SR Latch? How do the inputs to a D-type Flip Flop differ from the inputs of an SR Latch? How does a D-type Flip Flip protect against the forbidden state of an SR Latch?

Merlin Merch

@codermerlin

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