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I was really intrigued by the BeagleBone Black's (BBB) low cost, great performance, and IO all on the familiar Ubuntu OS. I am still quite new to the BeagleBone Black and hope to create some great projects with it in the future. This is a quick guide to get you up and running with Ubuntu on your BeagleBone Black. I created this guide because many of the guides and instructions are scattered across many places and I wanted a concise place to reference. Flashing/Installing Ubuntu on your BeagleBone Black Download the latest Ubuntu image. Pick the latest .img.xz file (on the bottom) from the rcn-ee site ex. http://rcn-ee.net/deb/flasher/saucy/BBB-eMMC-flasher-ubuntu-13.10-2014-03-27-2gb.img.xz Extract the .img.xz download to get the .img file. You can use ...
This guide will go over compiling the firmware, flashing it to your device, and emulating your first device. I was successful using Windows 8(not 8.1) but that doesn't mean it came without the challenges. Hopefully this guide can steer you clear of any head-banging issues. If you need help making/assembling your own Facedancer board, follow this guide I made previously. Getting started Inspect your board for any solder bridges, cold joints, etc. Use a multimeter in continuity mode to test. This is important as you are connecting this to your precious pc. Plug in the host side to your pc via USB 2.0. I ran into Blue Screen issues on Windows 8 using USB 3.0. If you want to be ...
The Facedancer is a board to fuzz and emulate/prototype USB devices with host side python, PyUSB. Here is the official Facedancer21 page. It was masterminded by Travis Goodspeed and Sergey Bratus. The Facedancer21 is the 24th revision of the pcb. The Facedancer is not really avaiable pre-assembled for cheap so you will have to build your own. You can buy a fully assembled version from this site but you don't get any SMD soldering practice and it costs about double. If you already have a board and need some help flashing it and emulating your first device, follow this guide. Tools: Soldering Iron Spool of Solder Flux (I used a flux pen) Tweezers Spool of desoldering Wick or Braid Multimeter ...
Here is a simple guide/tutorial on how to get your linear servo moving. The video below demos what I made. You can see how everything is set up below that: Watch on YouTube Parts: Teensy 3.0 or 3.1: Substitute your own Arduino/microcontroller Mini Linear Servo 1x 10 uF Capacitor 1x Diode (Optional) Potentiometer for jog code. I was able to run the mini servo off of the Teensy's 3.3V pin which has a 100mA max rating. Code: There are two different demo projects. The first one just jogs the servo back and forth. The second demo uses the potentiometer as input to manually control the position of the servo. A linear servo works just the same as a normal hobby ...
Here is a simple guide to get your stepper motors spinning. The video below demos what I made. You can see how everything is set up below that: Watch on YouTube Parts: Teensy 3.0 or 3.1: Substitute your own Arduino/microcontroller Stepper Motors: 1.7A NEMA 17 4-wire Motor Controllers: I used a 3.5A controller with the TB6560 chips Power Supply: 24V 10A (I used a Sopudar SPD-240-24) Wiring Diagram / Schematic: Code (.ino, arduino code): const int stepperX_pul = 0; const int stepperX_dir = 1; const int stepperY_pul = 2; const int stepperY_dir = 3; int microstep_count = 0; void setup() { // Set up the x axis pinMode(stepperX_pul, OUTPUT); pinMode(stepperX_dir, OUTPUT); // Set up the y axis pinMode(stepperY_pul, OUTPUT); pinMode(stepperY_dir, ...
Just finished the classic tennis game Pong for my Basys 2 FPGA. The project is written in VHDL and is played on a VGA monitor. Built from scratch. You can see a video of it in action at the bottom of this article. Features: Multiplayer: Battle against your friend Play against the AI. Or AI vs AI battles Score Keeping Hidden Mode / Easter Egg Source: Just visit the Github Repo. Controls: Action Control Player Left/1 Paddle movement btn2 and btn3 Player Right/2 Paddle movement btn0 and btn1 Reset switch0 Player Left/1 AI Enable switch7 Player Right/2 AI Enable switch6 Technology: Here just a list of things implemented in this design Collision Detection and Resolution VGA Output, game video Text ...
Go straight to the VGA Simulator About The VGA Simulator is a web based tool to easily view a raw VGA signal without having to hook it up to an actual CRT monitor. Easily review and save any frames generated. It uses horizontal sync, vertical sync, and red, green, blue to recreate pixel perfect frames. The image below is a scaled down version of the real thing so mind the blurryness: The purpose of this tool was to create a faster way to debug FPGA/VHDL projects that utilize VGA. The problem is that synthesizing and generating a bit-file takes too long with Xilinx mainly because it only utilizes a single core. Although we have Simulators such as Isim to debug ...
If you are running into the following error (Adept, or other programmer), here is how to fix it in Xilinx. I came across this issue when using my Basys 2 and trying to load a bit file with Digilent's Adept programmer. It is only a compatibility issue with the bit file and FPGA board. Startup clock for this file is'CCLK' instead of 'JTAG CLK'. Problems will likely occur. Associate config file with device anyway? In the Processes pane, select Generate Programming File Then go to Process -> Process Properties -> Startup Options -> FPGA Start-Up Clock and change it to JTAG CLK. Click, OK. Then re-generate the programming file and program your board.
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