Browsing All posts tagged under »hdl«

An example of CPU for FPGAs

August 11, 2012

1

Zero Characters Left: XENTRAL: A Simple FPGA CPU. The Xentral is an open source example of a CPU that can be synthesized into an inexpensive Spartan FPGA. The HDL source code (written in VHDL) and Xilinx ISE files are here. The project is still at the beginning, the CPU is very simple (e.g. no pipeline) […]

ZPUino open source processor

March 6, 2011

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ZPUino is a project that offers a microprocessor that can be put on FPGA, and that can be programmed with a simple IDE. Everything is open source: the toolchain, the IDE and the VHDL code; and it can be downloaded freely. The hardware architecture is based on the ZPU (Zylin CPU), which is a processor […]

New release of Icarus Verilog

September 28, 2010

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Icarus Verilog is a compiler and simulator for one of the most used Hardware Description Language (Verilog of course). Today the developers released version 0.9.3; here is the announce on their SourceForge page. The Release Notes state that, other than bug fixes, the current implementation is becoming closer to the standard specifications. This new version […]

Debugging OpenRisc software inside RTL simulation

August 7, 2010

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Using Icarus Verilog and a custom built GDB to debug software running inside a simulation of a OpenRisc System On Chip, thanks to the Verilog Procedural Interface.

New OpenRISC: academic work helps open source hardware

July 1, 2010

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OpenCores delivered a new version of OpenRISC, an open source processor hosted together with many open source hardware projects; more information on their current news page. What is special about this version is that the major driver for the code development has been an academic thesis on verification. Waqas Ahmed of the Royal Institute of […]

MyHDL on Ubuntu Lucid

June 2, 2010

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MyHDL is a Hardware Description Language based on Python. Last year I packaged it for Ubuntu Karmic Koala (here the blog post) and put it on my Launchpad Personal Package Archive (PPA) in order to be installed by everyone. Today I ported MyHDL 0.6 to Ubuntu Lucid Lynx; to install it, run from the command […]

MyHDL on Ubuntu

February 23, 2010

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The MyHDL Python modules can now be installed on Ubuntu using a convenient Launchpad PPA repository.

Languages for hardware development

January 14, 2010

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A subjective view on some hardware description languages.

OpenRisc Verilog simulation of serial port communication

December 17, 2009

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An explanation of how to test an OpenRisc architecture with a hardware/software co-simulation; all the used tools are open source.

Links for 2009-05-29

May 29, 2009

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What a Hacked PC Can Be Used For via Slashdot Google’s "Wave" Blurs Chat, Email, Collaboration Software via Slashdot HDL Design Methods for Low-Power Implementation via Design And Reuse Increasing clock frequency and a continuous increase in the number of transistors on chip have made implementing low power techniques in the design compulsory. These low […]

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