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learn:courses:unit-3-lab3a:start [2021/10/13 21:06] – external edit 127.0.0.1learn:courses:unit-3-lab3a:start [2022/10/04 11:38] (current) – external edit 127.0.0.1
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 ==== 3.1. Hardware ==== ==== 3.1. Hardware ====
   - [[https://digilent.com/shop/basys-mx3-pic32mx-trainer-board-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]]
-  - [[http://store.digilentinc.com/usb-a-to-micro-b-cable/|Micro USB cable]]+  - [[https://digilent.com/shop/usb-a-to-micro-b-cable/|Micro USB cable]]
   - Workstation computer running Windows 10 or higher, MAC OS, or Linux   - Workstation computer running Windows 10 or higher, MAC OS, or Linux
  
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   - [[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]]+  - [[https://digilent.com/shop/software/digilent-waveforms/|WaveForms]]
  
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 ===== 7. LCD Background Information ===== ===== 7. LCD Background Information =====
-Character [[https://en.wikipedia.org/wiki/Liquid-crystal_display|Liquid Crystal Displays]] (LCD) are low-cost electronic devices that are capable of generating visual displays consisting of alphanumeric characters and graphical symbols commonly used for [[https://en.wikipedia.org/wiki/Embedded_system|embedded system human machine interfaces]] (HMI). Many suppliers of LCD devices are based on the [[https://en.wikipedia.org/wiki/Hitachi_HD44780_LCD_controller|Hitachi HD44780]] LCD controller, and hence have a common hardware and software interface. Some LCD devices have serial interfaces that use UART, I2C, and SPI communications((PmodCLS: Character LCD with Serial Interface, [[http://store.digilentinc.com/pmodcls-character-lcd-with-serial-interface/|http://store.digilentinc.com/pmodcls-character-lcd-with-serial-interface/]])). These protocols are covered in Unit 4. Other LCD devices use interfaces consisting of four or eight data lines and three control lines((PmodCLP Character LCD with Parallel Interface, [[http://store.digilentinc.com/pmodclp-character-lcd-with-parallel-interface/|http://store.digilentinc.com/pmodclp-character-lcd-with-parallel-interface/]])). Although the LCDs that use a serial interface require fewer processor I/O pins, the display controller IC is still based on the Hitachi HD44780, which uses 8 or 11 I/O pins. Hence, the serial LCD devices have an on-board microprocessor that translates the serial communications instructions to parallel I/O. +Character [[https://en.wikipedia.org/wiki/Liquid-crystal_display|Liquid Crystal Displays]] (LCD) are low-cost electronic devices that are capable of generating visual displays consisting of alphanumeric characters and graphical symbols commonly used for [[https://en.wikipedia.org/wiki/Embedded_system|embedded system human machine interfaces]] (HMI). Many suppliers of LCD devices are based on the [[https://en.wikipedia.org/wiki/Hitachi_HD44780_LCD_controller|Hitachi HD44780]] LCD controller, and hence have a common hardware and software interface. Some LCD devices have serial interfaces that use UART, I2C, and SPI communications((PmodCLS: Character LCD with Serial Interface, [[https://digilent.com/shop/pmod-cls-character-lcd-with-serial-interface/]])). These protocols are covered in Unit 4. Other LCD devices use interfaces consisting of four or eight data lines and three control lines((PmodCLP Character LCD with Parallel Interface, [[https://digilent.com/reference/pmod/pmodclp/start]])). Although the LCDs that use a serial interface require fewer processor I/O pins, the display controller IC is still based on the Hitachi HD44780, which uses 8 or 11 I/O pins. Hence, the serial LCD devices have an on-board microprocessor that translates the serial communications instructions to parallel I/O. 
  
 The handshaking required to successfully communicate with the LCD on the Basys MX3 is representative of many common parallel interfaces.  The handshaking required to successfully communicate with the LCD on the Basys MX3 is representative of many common parallel interfaces.