EE337 Microprocessors Lab Labsheet 5
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This lab assignment asks students to: 1. Write assembly code to generate square waveforms of specific frequencies corresponding to musical notes, as indicated in Table 1, and output these to P0.7 based on switch input. Students are to verify this works using simulation before the lab. 2. During the lab, connect a speaker to the microprocessor kit using the provided circuit diagram to interface the speaker. Students should then be able to play notes by changing the switch positions and hearing sound from the speaker. 3. Teaching assistants will check that the correct waveforms are being generated and the speaker interfacing is working properly for different switch inputs.
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![Lab 5: 20 points
EE 337: Microprocessors Laboratory (Spring 2023)
Indian Institute of Technology Bombay
Date: February 2, 2023
1. [20 points] In this lab, you will write assembly code to play notes corresponding to
the frequencies given in Table 1. The musical notes can be generated as square wave-
forms of specific frequencies. These can be generated and heard using the speaker
with appropriate interfacing.
1. Use software delays to produce square wave-forms of appropriate frequency.
Based on the inputs given through switches (P1.0 to P1.3), the square wave-
form of required frequency must be written to P0.7. Verify the working using
Keil I/O Port and Logic Analyser before going for interfacing.
Switches Note Frequency (Hz)
0001 Sa 255
0011 Re 290
0111 Ga 325
1111 Ma 345
Table 1: Frequencies of notes and their corresponding switch positions
Perform this part and make sure it is working before coming to the lab. Speaker
and other required hardware will be provided during the lab hours, during which
you need to do the interfacing.
2. Connect the speaker to the Pt-51 kit using the SL100 transistor and interfacing
circuit shown in Figure 1. Based on the positions of the on-board DIP switches,
you should be able to hear the notes being played out on the speaker.
Figure 1: Circuit diagram for interfacing](https://image.slidesharecdn.com/lab5-230201114146-9bcd4406/85/EE337-Microprocessors-Lab-Labsheet-5-1-320.jpg)
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3. Studied intensity modulation using an analog input. Signal was modulated, transmitted, demodulated and amplified back to original.
4. Studied intensity modulation using a digital input. Signal was modulated and reconstructed at receiver.
5. Described a frequency modulation system. A 1kHz sine wave frequency modulated a digital signal, which was transmitted and demodulated to recover the original signal.
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Work microwave
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Ecet 105 Education Specialist -snaptutorial.com
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www.snaptutorial.com
1. Does a typical computer have any analog outputs? If so, what are they?
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3. Convert 126 x 10+2 to scientific and engineering notations.
4. Make the following conversions:
a. Convert 0.34 seconds to milliseconds.
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EE337 Microprocessor Lab, Course Outline, Spring 2023
- This document outlines the course details for the EE337 Microprocessors Lab course, including instructors, timings, objectives, skills gained, prerequisites, grading policy, attendance policy, lab experiment schedule, evaluation process, reference texts, software, and download links.
- The course aims to develop applications on the 8051 microcontroller and complements the Microprocessor theory course. Students will write programs, interface peripherals, and implement communication protocols.
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This document outlines the course details for the EE337 - Microprocessors Lab course. The objectives are to understand and develop applications for the 8051 microcontroller and complement the Microprocessor theory course. Students will gain skills in developing, simulating, and debugging programs using an IDE and writing assembly and embedded C programs. The course will be graded based on lab experiments, assignments, and a final project. Students will complete approximately 8 labs and show their work to an assigned TA. Prerequisites for the course and required software and development board are also outlined.
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This document provides an outline for the EE337 Microprocessors Lab course. The course objectives are to understand and develop applications for the 8051 microcontroller and complement the Microprocessor theory course. Students will gain skills in developing, simulating, and debugging programs using an IDE, and writing assembly and embedded C programs to interface peripherals like LCDs and keypads. Prerequisites include digital circuits and systems courses. Labs will make up 60% of the grade, with assignments and a project accounting for the rest. The course will use an online platform and kits containing development boards will be provided to students.
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This document discusses using Keil uVision IDE to create hex files for programming microcontrollers. It covers creating and configuring projects in Keil uVision, adding and compiling source code files, and generating hex files. Key aspects include setting up the microcontroller target options, rebuilding code to generate machine code and check for errors, and programming the microcontroller with the hex file. The goal is to provide an integrated workflow for coding, compiling, and programming microcontrollers using Keil's IDE.
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This document describes the features and specifications of an 8-bit microcontroller with full-speed USB capabilities. It includes an 80C52 core, 16/32KB flash memory, 1KB SRAM, timers, serial communication interfaces, and a full-speed USB module compatible with USB 1.1 and 2.0 specifications. The microcontroller has low power idle and power-down modes and an operating temperature range of industrial levels. It comes in 52-pin PLCC, 64-pin VQFP, and 32-pin QFN packages.
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EE337 Microprocessors Lab Labsheet 5
- 1. Lab 5: 20 points EE 337: Microprocessors Laboratory (Spring 2023) Indian Institute of Technology Bombay Date: February 2, 2023 1. [20 points] In this lab, you will write assembly code to play notes corresponding to the frequencies given in Table 1. The musical notes can be generated as square wave- forms of specific frequencies. These can be generated and heard using the speaker with appropriate interfacing. 1. Use software delays to produce square wave-forms of appropriate frequency. Based on the inputs given through switches (P1.0 to P1.3), the square wave- form of required frequency must be written to P0.7. Verify the working using Keil I/O Port and Logic Analyser before going for interfacing. Switches Note Frequency (Hz) 0001 Sa 255 0011 Re 290 0111 Ga 325 1111 Ma 345 Table 1: Frequencies of notes and their corresponding switch positions Perform this part and make sure it is working before coming to the lab. Speaker and other required hardware will be provided during the lab hours, during which you need to do the interfacing. 2. Connect the speaker to the Pt-51 kit using the SL100 transistor and interfacing circuit shown in Figure 1. Based on the positions of the on-board DIP switches, you should be able to hear the notes being played out on the speaker. Figure 1: Circuit diagram for interfacing
- 2. For the speaker interfacing circuit, use 5V supply and GND from the ON BOARD SUPPLY VOLTAGES (refer to Figure 2). Figure 2: PT-51 Board Detailed Layout TA Checkpoint • Check if the wave-forms of required frequencies are being generated in the Logic Analyser. • Check if the interfacing is working by providing different inputs and observing the output from the speaker.