Embedded -Verilog Code for DE0-Nano board -- 2

PART A Create a project about a 128x3 (128 words, with 3 bits at each word) single- port RAM in Verilog, simulate the design, and load it into the Cyclone IV chip on the DE0-Nano board. The design uses two push-buttons and one DIP switch as inputs. One side of the DIP switch clears the memory address (not the memory contents). The depressing of the first push-button indicates a memory write action. In this case, the 50 MHz clock signal available on the FPGA board is used as an input to increase the RAM address. The 3-bit data value written to a memory location at an address should represent the number of ones in the 7 address bits. For example, a value of 011 (=3) should be written to the location with an address of 1000011. Once the first push-button is released, the memory read is in action. In this case, the 3-bit data stored at the current address are to be displayed using three LEDs. The releasing of the second push-button increases the memory address by one. In addition, connect the 5 least significant address bits to 5 LEDs. Write a DO file for the simulation. The simulation needs to demonstrate the writing to the RAM followed by reading from the RAM, each involving a few RAM locations. You need to do the following prior to compilation: • Generate a Verilog file for the single-port RAM by using “the IP Catalog” of Quartus Prime. (Use “On Chip Memory” which is with in “Installed IP −> Library −> Basic Functions”.) • Add the Verilog file for the RAM to the project. • Instantiate a memory component in the design. • For the address control, you must instantiate two copies of a 7-bit up counter (modified from the 3-bit from Assignment 2). One is for generating read addresses and the other for write addresses. A multiplexer should be used to connect the right address to the RAM input. • For the simulation you will need to include the altera_mf_verlibrary. This can be done in ModelSim-Altera using the “Libraries” tab within the “Start Simulation” window. PART B Create a project about the on-board 3-D accelerometer in Verilog, and load it into the Cyclone IV chip on the DE0-Nano board. Th e design uses one push-button and one LED. • Pressing down the push-button turns off the LED. • The LED is turned on when the board is suddenly mov ed. (The degree/direction of movement is of your choice, but should be reasonable.) Demonstrate the project. There is no need for simu lation. How it can be done: On the DE0-Nano board CD, which is available on the course Pilot website, copy the folder demonstration/DE0_NANO_GSensor to t he PC hard drive. From the hard drive folder, you may use Quartus Prime to ope n an existing project file, compile the project, and program the board. There is no need to assign pins since that has already been done. Study the code. (On P ilot, under FPGA/Verilog HDL Sample Codes/GSensor-Demo-Code-Listing, there is a PDF file, named “Using the 3D Accelerometer”, that describes the code.) DE0_NANO_G_Sensor.v contains the top-level module of the project.