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It is OK to use CodeWarrior to check your work and make corrections after you have done it by hand. For this lab, you will adapt the string hash program from lab 1. For each question below, we suggest that you do the work by hand and check it with an assembler.
Pin 2 provides D0 to bus, Pin 5 provides D1, etc. The term counter limit refers to the maximum value the counter runs to e. All non-code parts of the hand-in should be submitted as a single document. Embedded Hardware – Part B: Do this by hand — do NOT use datasgeet simulator since it will give exact execution time and not best case execution time. Do this by hand using the reference materials. For the questions involving the running sum, you may find it faster to compute the sum using a formula for an arithmetic sequence, rather than doing the sum iteratively.
Create a similar example using different, non-trivial e. Scan the printed-out document after you add the checkmarks and upload to the hand-in folder. Confirm the operation using the simulator to make sure you got it right, which you need document only by saying “checked with simulator” in your hand-in. Demonstrate that you can read and understand the datasheet for an IC and use it in a circuit. ls347
18-348 Lab #2
You do not have to use the assembly program or the simulator. Xatasheet, see the course materials repository page. To familiarize yourself with the microcontroller assembly instructions and the process of assembly. When you record your answers, use the conventions described in the discussion section.
You MUST follow these procedures or we will not accept your submissions. Note that 74LS labeling of “Q” outputs is in terms of bus bits and not per data sheet for this diagram.
BUT, we expect both of you to understand and participate in the execution of both labs. You will be expected to assemble, disassemble, and time code by hand on tests and quizzes. Circuit Output Connections In the resistor network, each resistor is Ohms. Machine code is adtasheet from memory and the instructions described are executed by the processor. For this lab, you will write a vatasheet that uses a loop to add the numbers 1 through and displays the results.
Code files should be submitted separately, per the lab FAQ.
And, as always, you must do the pre-labs independently. Think of how embarrassed you will be if you get something wrong after saying you followed the checklist.
To familiarize you with the operation of the LS flip-flop and understand how it can be integrated into a circuit. Assume the voltage drop across the LED is 1. You will connect the circuit and write a simple program to verify its operation.
It is easy to make small mistakes os374 you are in a hurry. Be dataseet to consult the Lab Writeup Checklist for both the prelab and lab writeup! This lab uses datasheey flip-flop to hold a data value on a bar graph LED. Briefly comment each line to describe what it does 10 words or fewer per line. Why is it valid or invalid? This lab uses the same circuit as Lab 2 part A. Refer above for details on wiring the circuit. The first instruction is done as an example. Datwsheet a checklist is your best defense against this in general, and in particular is extremely helpful for avoiding unnecessary point losses when handing in assignments for this course.
Limit your answer to 40 words. Please see the course web page for due dates.
LS datasheet, Pinout ,application circuits DUAL 4-INPUT POSITIVE-NAND OHM LINE DRIVERS
The point of this exercise is to actually follow all the steps on the checklist, not just say you followed them. Assume that all setup, hold, pulse duration, and propagation times are valid and the outputs have settled for these sample points.
This includes performing operations shift, add, subtract, clear on registers and memory locations and copying values from one location to another. Paste a copy ,s374 the dztasheet portion of the Lab Writeup Checklist into your hand-in materials. We suggest each of the two students in your lab group be “in charge” of one of the datasyeet parts of the lab parts to help divide the work.
Put a brief comment at the beginning which describes the overall function of the code. Assume that the output voltage is quiescent i.
Look carefully at the data sheet! Paste a copy of the pre-lab portion of the Lab Writeup Checklist into your hand-in materials.