Microcontroller - 8051, 8052, OpCodes, Analog Interface.

Monday, January 14, 2008

Mentor Graphics - EDA Technology

Mentor Graphics - EDA Technology

Mentor Graphics is a technology leader in electronic design automation (EDA), providing software and hardware design solutions that enable companies to develop better electronic products faster and more cost-effectively.

The company offers innovative products and solutions that help engineers overcome the design challenges they face in the increasingly complex worlds of board and chip design.

EZwave can analyze time or frequency domain waveform of any type: analog, digital, eye diagram, smith chart, polar or complex chart, and histogram. "

"The EZwave Joint Waveform DataBase (JWDB) is a high-performance waveform database for manipulating huge waveform databases from leading simulators, loading gigabytes of data in seconds.

 LP Viewer

LP Viewer

"View Physical Component and Land Pattern superimposed for visual accuracy. You can turn layers on/off, print datasheets, see component dimensions, land pattern dimensions, calculator setting, global settings, Toe, Heel and Side statistical data."

gEDA Project - Electronic Design Automation

The gEDA project is working on producing a full GPL'd suite of Electronic Design Automation tools. These tools are used for electrical circuit  design, schematic capture, simulation, prototyping, and production.

gEDA  - Electronic Design Automation

Currently, the gEDA project offers a mature suite of free software applications for electronics design, including schematic capture, attribute management, bill of materials (BOM) generation, netlisting into over 20 netlist formats, analog and digital simulation, and printed circuit board (PCB) layout.

gEDA Project's Homepage 

gEDA  - Electronic Design Automation

gschem is the schematic capture program/tool which is part of gEDA. Its sole purpose is to facilitate the graphical input of components/circuits.

PCB is an interactive printed circuit board editor.  PCB offers high end features such as an autorouter and trace optimizer which can tremendously reduce layout time. For custom requirements,

Icarus Verilog is a Verilog simulation and synthesis tool. It operates as a compiler, compiling source code written in Verilog (IEEE-1364) into some target format. For batch simulation, the compiler can generate an intermediate form called vvp assembly.

GTKWave is a fully featured GTK+ based waveform viewer. GTKWave is designed to handle many signals at once, it has three signal searching modes (Regular Expressions, Hierarchy, and Tree) as well as the ability to display data in many different formats.

GTKWave

Friday, January 11, 2008

Willem Eprom Programmer

Willem Eprom Programmer

New software version 0.98D8 for the pro-4

This version can also be used with other hardware versions for serial eeproms: I2C, SPI, Microwire and Microchip devices.

EZoFlash+. Parallel memory programmer

EZoFlash+ programmer is simplified and based on Willem EPROM programmer schematics and software. Project is non commercial , create low cost programmer and adapters boards yourself.

SDCC - Small Device C Compiler

SDCC was written by Sandeep Dutta and released under a GPL license. SDCC is a retargettable, optimizing ANSI - C compiler that works for the Intel 8051, Maxim 80DS390, Zilog Z80 and the Motorola 68HC08 based MCUs.

SDCC - Small Device C Compiler

Work is in progress on supporting the Microchip PIC16 and PIC18 series. SDCC is Free Open Source Software.

SDCC - Small Device C Compiler
  • ASXXXX and ASLINK, a Freeware, retargettable assembler and linker.
  • extensive MCU specific language extensions, allowing effective use of the underlying hardware.
  • a host of standard optimizations such as global sub expression elimination, loop optimizations (loop invariant, strength reduction of induction variables and loop reversing ), constant folding and propagation, copy propagation, dead code elimination and jump tables for 'switch' statements.
  • MCU specific optimizations, including a global register allocator.
  • adaptable MCU specific backend that should be well suited for other 8 bit MCUs
  • independent rule based peep hole optimizer.
  • a full range of data types: char (8 bits, 1 byte), short (16 bits, 2 bytes), int (16 bits, 2 bytes), long (32 bit, 4 bytes) and float (4 byte IEEE).
  • the ability to add inline assembler code anywhere in a function.
  • the ability to report on the complexity of a function to help decide what should be re-written in assembler.
  • a good selection of automated regression tests.
The SDCC Open Knowledge Resource

The Cygnal port was developed on a C8051F120-TB prototyping board (instructions are provided should you wish to use an alternative development board) fitted with a 8051F120 microcontroller. The freeware SDCC compiler was used along with the Cygnal IDE.


Cygnal (Silicon Labs) 8051 Port