Open Source VHDL/Verilog Embedded Systems Software

OpenSOC86 is an open implementation of the x86 architecture in Verilog. The current version only implements the 16-bit part (real mode). The processor is a pipelined architecture clocked at 100 MHz in a Cyclone II speed grade -6. Therefore it can be seen as similar to a 486 in real mode. Several peripherals are also implemented in a somewhat minimalistic way, but enough to be able to boot an IBM PCXT compatible bios and MSDOS 6.22. The current implementation is only proven to boot the bios and DOS in simulation. The system is targeted to run on the DE2-70 board. In order to run the system in hardware a SDRAM and SRAM controller need to be added. These are currently in development.

A simple Embedded System Framework that allows rapid development of applications build for AVR family. System is based on a super-loop architecture with check and skip (no-wait) flag event driver system. Supports: UART, SysTick Timer, ADC, SPI, EEPROM, PWM. Also supports: Xilinx FPGA configuration, FPGA SSI interface, smart card reader etc. Tested partially (different modules in each case) on ATMega163/16/32/323/8. Awards CodeProject 2010, Third Prize, Hardware and Device Programming Check the Wiki Page for more details.

The “lpACLib” library contains the VHDL description of accurate and approximate versions of several arithmetic modules (like adders and multiplier of different bit-widths) and accelerators. Moreover, it also provides the corresponding software behavioral models/implementations developed in C and MATLAB to enable quality characterization. Besides our novel designs, it also contains implementations for several state-of-the-art arithmetic modules and their approximate versions. This open-source library facilitates research and development in approximate computing at higher abstraction levels, and to facilitate reproducible research and comparisons. In case of usage, please refer to our publication: Muhammad Shafique, Rehan Hafiz, Semeen Rehman, Walaa El-Harouni, Jörg Henkel, "Cross-Layer Approximate Computing: From Logic to Architectures", Design Automation Conference (DAC), 2016. Contributors: Authors, Vanshika Baoni, M. Abdullah Hanif http://ces.itec.kit.edu/lpACLib.php

Este proyecto presenta GraphUIS, una implementación de un periférico de video en un FPGA como un diseño modular caracterizado por no tener memoria dedicada. Se desarrolló como un proyecto académico en la Universidad Industrial de Santander.

A arcade snake game purely written in verilog [ no asm or C ]

Contains a framework for Coldfire MCUs like 52254. The framework supports a Command Line Interface (CLI) that may work from Serial port, USB or ENET. The framework uses Processor Expert and IDE requirement is MCU Eclipse 10.4 from Freescale. Includes the FunkOS Realtime Operating System by Funkenstein Software Consulting, available at http://funkos.sourceforge.net Mainly it is a support package for the development board Perseus, but I have ported also the RTOS to MCF52233DEMO board. More to come....

FPGAmer is a framework to develop embedded games. Our development platform is the Xilinx University Program Virtex-II-Pro but not limited to that. FPGAmer includes custom hardware components plus a custom software framework and some sample games.

This project aims at creating an open-source SoC that will support the Google TV platform.

GalaxyIP (Galaxy Intellectual Property Cores) is a project devoted to accommodate a set of IP-Cores for embedded SoC development, based on the processor code named Voyager (StarTrek and the space probes).

Platform for advanced open source IP-Core development, i. e. dynamic memory controllers for FPGAs.

Expansion card for 8 bit computer Sharp MZ-800. Connection to SD / MMC card with FAT16 filesystem. Emulated FD controller. MZF repository. This project is already stoped. Please see the MZ800 Unicard 2nd generation https://sourceforge.net/projects/mz800ukp1/

Sharp MZ800 univerzalni karta periferii 1 ----------------------------------------- Contains peripherals: emulator of FDC WD279x, RTC, single channel SIO, repository manager, LAN10Mbit Chips on the card: STM32F101, XC9356, ENC28J60, FT232RL, MAX3232

Design and implementation of silicon and software for baseband processors conforming to IEEE wireless standards. Initial focus on WiMAX and WiFi.

This project introduces new FPGA architectural tools and Linux OS modifications that aid in supporting Dynamic Partial Reconfiguration (DPR) on FPGAs for concurrent control. It shows that control systems benefit from hardware concurrency, meaning that by moving the control intelligence into hardware, the negative effects inherent to threads and their scheduler are minimized. This leaves software with the role of a high-level administrator rather than an executor, thereby eliminating unnecessary bottlenecks. The tools described in this project enable the hardware engineer to develop DPR-FPGA systems more effectively for rapid control system development. For more information, related papers and user guide, please refer to: - https://sourceforge.net/p/prhardware/wiki/Home/ - http://www2.ensc.sfu.ca/research/iDEA/personel/victor_lesau.htm

Software which runs on a gunstix overo, to contron stepper motors, and servos in such a way that they play the piano. The actual stepper motor and servo driver are done on an FPGA board from knjn.com (pluto-3).

Oscilloscope using a VGA monitor and a cpld

Devellopement d'un controlleur d'affichage (VIC) du commodore 64 embarqué dans un FPGA avec controlleur d'animation integré.

This project contains the material discussed in my PhD dissertation, entitled "Hardware/Software Design of Dynamic Real-Time Schedulers for Embedded Multiprocessor Systems." The source code is available in the SVN repository: https://sourceforge.net/p/xrt/code/6/tree/trunk/ and consists in two folders: 1) /X-RT : A portable multiprocessor scheduling framework supporting scheduling periodic real-time tasks according to the G-EDF (Global Earliest Deadline First) scheduling platform. Current version supports major POSIX systems (Linux, QNX). 2) Hardware_GEDF_Scheduler: is a hardware implementation in VHDL (targeting FPGAs) of the G-EDF multiprocessor scheduling policy.

This project was moved to https://gitlab.c3sl.ufpr.br/roberto/cmips The code here is no longer up to date. The VHDL model mimics the pipeline design described in Patterson & Hennessy's book (Computer Organisation and Design) and is an almost complete implementation of the MIPS32r2 instruction set. The TLB and assorted control registers will be included soon (as of fev 2015). The model was synthesized for an Altera EP4CE30F23. The model uses up 15% of combinational blocks and 5% logic registers.

The ixo.de USB JTAG pod and firmware allows to access JTAG-capable chips via USB and a protocol like Altera USB-Blaster.

This project is aimed at producing open source hardware for real time use in industrial automation. This project will have a few sub-projects that will focus on individual hardware for various industrial purpose. Some of the sub-projects will be of type Field-IO Modules development, Analog-IO Module development etc.

Open-source alternative partial reconfiguration flow for Xilinx FPGAs

The Python Hardware Processsor is a implementation of a Hardware CPU in Myhdl. The CPU can directly execute something very similar to python bytecode (but only a very restricted instruction set). The Programm code for the CPU can be written directly in python (very restricted parts of python). This code is then converted by a small python programm to this restricted python bytecode. Since the hardware description is also in python, the slightly modified bytecode an then automatically loaded into the CPU design. The result can be converted to VHDL or Verilog