410-336 Digilent

1300 Henley Court Pullman, WA 99163 509.334.6306 www.store.digilent.com Basys MX3 Board Reference Manual Revised December 4, 2019. This manual applies to the Basys MX3 rev. B Table of Contents Table of Contents .................................................................................................................. 1 Overview ............................................................................................................................... 5 Software Support ........................................................................................................................ 6 Coursework and Additional Materials ........................................................................................ 6 1 Programming the Board ................................................................................................. 7 1.1 Programming Tools .......................................................................................................... 7 1.2 Programming Basics ......................................................................................................... 8 1.3 Digital Inputs and Outputs ............................................................................................... 9 1.4 Remappable Pins ............................................................................................................ 10 1.5 CPU Clock Source ........................................................................................................... 11 2 Power Supplies ............................................................................................................ 12 3 User LEDs ..................................................................................................................... 13 3.1 Connectivity .................................................................................................................... 14 3.2 Functionality ................................................................................................................... 14 4 User Switches .............................................................................................................. 14 4.1 Connectivity .................................................................................................................... 15 4.2 Functionality ................................................................................................................... 16 4.3 Shared Pins ..................................................................................................................... 16 Copyright Digilent, Inc. 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Basys MX3 Board Reference Manual 5 User Buttons ................................................................................................................ 16 5.1 Connectivity .................................................................................................................... 17 5.2 Functionality ................................................................................................................... 17 5.3 Shared Pins ..................................................................................................................... 18 6 RGB LED ....................................................................................................................... 18 6.1 Connectivity .................................................................................................................... 19 6.2 Functionality ................................................................................................................... 19 6.2.1 RGB LED Implemented Using PWM ........................................................................ 19 6.2.2 RGB LED Implemented Using PDM ......................................................................... 20 7 Seven-segment Display ................................................................................................ 20 7.1 Connectivity .................................................................................................................... 22 7.2 Functionality ................................................................................................................... 23 8 LCD Module ................................................................................................................. 24 8.1 Connectivity .................................................................................................................... 25 8.2 Functionality ................................................................................................................... 26 2 9 I C Interface ................................................................................................................. 27 10 Accelerometer ............................................................................................................. 28 10.1 Connectivity ................................................................................................................ 28 10.2 Functionality ............................................................................................................... 28 10.3 Shared Pins ................................................................................................................. 29 11 Serial Peripheral Interface ............................................................................................ 29 11.1 SPI1 ............................................................................................................................. 29 11.2 SPI2 ............................................................................................................................. 29 12 Flash Memory .............................................................................................................. 30 12.1 Connectivity ................................................................................................................ 30 Copyright Digilent, Inc. 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