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learn:courses:unit-4-lab4d:start [2017/04/13 20:55] – [7.1. The MMZ8652FC 3-Axis Accelerometer Software] Marthalearn:courses:unit-4-lab4d:start [2022/10/04 11:38] (current) – external edit 127.0.0.1
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 ====== Lab 4d: Communications - I2C Serial Protocols ====== ====== Lab 4d: Communications - I2C Serial Protocols ======
 +[[{}/learn/courses/unit-4-1/start|Back to Unit 4 Part 1]]
 +[[{}/learn/courses/unit-4-2/start|Back to Unit 4 Part 2]]
 +[[{}/learn/courses/unit-4-lab4c/start|Back to Lab 4c]]
  
 === Download This Document === === Download This Document ===
-  * {{ :learn:courses:unit-4-lab4d:lab_4d.pdf |Lab 4d PDF}}+{{ :learn:courses:unit-4-lab4d:lab_4d.pdf |Lab 4d PDF}}
  
  
 ===== 1. Objectives ===== ===== 1. Objectives =====
-  * Develop a library of functions that manage the functionality and retrieve data from a three-axis accelerometer using I²C communications. +  - Develop a library of functions that manage the functionality and retrieve data from a three-axis accelerometer using I²C communications. 
-  * Display the accelerometer data on the Basys MX3 LCD. +  - Display the accelerometer data on the Basys MX3 LCD. 
-  * Display the accelerometer data on the workstation monitor using UART asynchronous communications.+  - Display the accelerometer data on the workstation monitor using UART asynchronous communications.
  
 ---- ----
  
 ===== 2. Basic Knowledge ===== ===== 2. Basic Knowledge =====
-  * How to exchange serial data with a computer terminal using the PIC32MX370 UART +  - How to exchange serial data with a computer terminal using the PIC32MX370 UART 
-  * How to use the PIC32MX3270 processor to display text on a character LCD +  - How to use the PIC32MX3270 processor to display text on a character LCD 
-  * How to implement code reuse that integrates previously developed processor code into new application projects. +  - How to implement code reuse that integrates previously developed processor code into new application projects. 
  
  
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 ===== 3. Equipment List ===== ===== 3. Equipment List =====
 ==== 3.1. Hardware ==== ==== 3.1. Hardware ====
-  * [[http://store.digilentinc.com/basys-mx3-pic32mx-trainer-board-recommended-for-embedded-systems-courses/|Basys MX3 trainer board]] +  - [[https://digilent.com/shop/basys-mx3-pic32mx-trainer-board-for-embedded-systems-courses/|Basys MX3 trainer board]] 
-  * Workstation computer running Windows 10 or higher, MAC OS, or Linux +  - Workstation computer running Windows 10 or higher, MAC OS, or Linux 
-  * 2 [[http://store.digilentinc.com/usb-a-to-micro-b-cable/|Standard USB A to micro-B cables]]+  - 2 [[https://digilent.com/shop/usb-a-to-micro-b-cable/|Standard USB A to micro-B cables]]
  
 In addition, we suggest the following instruments: In addition, we suggest the following instruments:
-  * [[http://store.digilentinc.com/analog-discovery-2-100msps-usb-oscilloscope-logic-analyzer-and-variable-power-supply/|Analog Discovery 2]]+  - [[https://digilent.com/shop/analog-discovery-2-100ms-s-usb-oscilloscope-logic-analyzer-and-variable-power-supply/|Analog Discovery 2]]
  
 ==== 3.2. Software ==== ==== 3.2. Software ====
 The following programs must be installed on your development work station: The following programs must be installed on your development work station:
  
-  * [[http://www.microchip.com/mplab/mplab-x-ide|Microchip MPLAB X® v3.35 or higher]] +  - [[http://www.microchip.com/mplab/mplab-x-ide|Microchip MPLAB X® v3.35 or higher]] 
-  * [[http://www.microchip.com/SWLibraryWeb/product.aspx?product=PIC32%20Peripheral%20Library|PLIB Peripheral Library]] +  - [[http://www.microchip.com/SWLibraryWeb/product.aspx?product=PIC32%20Peripheral%20Library|PLIB Peripheral Library]] 
-  * [[http://www.microchip.com/xcdemo/xcpluspromo.aspx|XC32 Cross Compiler]] +  - [[http://www.microchip.com/xcdemo/xcpluspromo.aspx|XC32 Cross Compiler]] 
-  * [[http://store.digilentinc.com/waveforms-2015-download-only/|WaveForms 2015]]  +  - [[https://digilent.com/shop/software/digilent-waveforms/|WaveForms]]  
-  * [[http://www.putty.org/|PuTTY Terminal Emulation]]+  - [[http://www.putty.org/|PuTTY Terminal Emulation]]
  
 ---- ----
  
 ===== 4. Project Takeaways ===== ===== 4. Project Takeaways =====
-  * Understanding of requirements and implementations of synchronous communications. +  - Understanding of requirements and implementations of synchronous communications. 
-  * Understanding of the I²C Protocol. +  - Understanding of the I²C Protocol. 
-  * Understand the advantages and disadvantages of I2C compared to UART and SPI.+  - Understand the advantages and disadvantages of I2C compared to UART and SPI.
  
  
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 ===== 9. Questions ===== ===== 9. Questions =====
 1. Using the waveform captured in step 5 of the testing section, identify all portions of the I2C SDA and SCL signals starting with the START sequence and ending with the STOP sequence.\\ 1. Using the waveform captured in step 5 of the testing section, identify all portions of the I2C SDA and SCL signals starting with the START sequence and ending with the STOP sequence.\\
- 
-{{ :learn:courses:unit-4-lab4d:lab4d-fig-9-1.png?nolink&800 |Figure 9.1. Screen capture showing the I2C timing for a 2-byte read operation.}} 
-//Figure 9.1. Screen capture showing the I2C timing for a 2-byte read operation.// 
- 
 2. Compute the effective data rate in bits per second.\\  2. Compute the effective data rate in bits per second.\\ 
 3. What effect, if any, would a change in the pull up resistors value for the SDA and SCL have on the I²C bus? \\ 3. What effect, if any, would a change in the pull up resistors value for the SDA and SCL have on the I²C bus? \\
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 } /* End of i2cReceiveOneByte */ } /* End of i2cReceiveOneByte */
 </code> </code>
 +
 +----
 +
 +[[{}/learn/courses/unit-4-1/start|Back to Unit 4 Part 1]]
 +[[{}/learn/courses/unit-4-2/start|Back to Unit 4 Part 2]]
 +[[{}/learn/courses/unit-4-lab4c/start|Back to Lab 4c]]
 +[[{}/learn/courses/unit-5/start|Go to Unit 5]]