Posts Tagged ‘fsm’

7-Step Tutorial to Create a Nine Shine LED Timer Game with FPGA

Thursday, September 22nd, 2016

Picture of Nine-Shine-Line: The LED Timing Game

Hello FPGA lovers! FPGAs are versatile tools that can be used for research, analysis, engineering applications and entertainment. Today’s project falls into the last category! The nine shine LED game is an interactive game that tests your sense of timing. It consists of an array of LEDs that are turned on sequentially, and you need to press a button exactly when the central LED lights up to progress in the game. The game has been organised into 10 levels by the author with increasing difficulty based on speed to make it fun and challenging.

The project uses an FPGA along with an array of LEDs. The Hardware required for the project is an FPGA Board, USB-to-Micro cable, Eight LEDs, 8 resistors and a Big Dome Pushbutton. To fabricate the setup board for LEDs, the materials required are a wooden board rubber feet, soldering iron and solder, heat shrink, drill, drill bit, hole saw, hot glue gun and insulated electrical wire.

The coding has been done in VHDL and is available in modules in step 2. The author has explained what each module does and its significance in the FPGA system in this step. Right from the FSMs to the main module, the author has gone to great lengths in explaining the code even in fine aspects such as button debouncing issues.

Read it in full and enjoy!

By Zack Eldredge

9 Steps to Create a LED FSM to Measure Power with FPGA

Tuesday, June 7th, 2016

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Hi there FPGA geeks! Power monitoring is a big step when it comes to analysis and subsequent models used for power conservation. The project for today is building an FSM (finite state machine) with a LED as its output and FPGA as its core to measure the power output by the LED when it is active. The IR sensor detects motion and switches on an LED, whose power is measured by the board. This FPGA LED FSM project can be extended to real life scenarios such as measuring the power of fans and other individual electric components in the house to control and conserve power consumption.

The Hardware requirements for this miniaturized model are an IR motion sensor, a LED, a transistor, a FPGA Board and jumper wires. The black box diagram for the project is given in Step3. The wiring instructions are given in Step 8, and the description for the many modules used in this project have been given in the preceding step.

The code has been segregated into modules and has been written using VHDL (.vhd). The VHDL files are available for download from Step 5 along with the XDC master file necessary for the FPGA Board Port Map implementation, you may need to adapt this to your own needs. The code has been written in modules, and can be modified to measure power of any device connected to the board provided its consumption per second is known.

This project can only be used to measure the power consumption of a device for 15 seconds due to circuit limitations. However additional displays and clocks can be used to extend this time frame provided the code has been tweaked on properly.

By harlowchris