ErWin 7.2 does not provide support for PostgreSQL, indeed with few tricks it still can be used to model database and generate valid SQL code.
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Wednesday, March 14, 2007
This is a maintenance release of the product that includes the following fixes:
1. SISAN v 1.1
1.1. Added SISAM88 hardware schematic
1.2. Fixed TX/RX typo on SISAM690 schematic
1.3. Fixed issue with beam pattern affecting ruler pattern
2. SISAM1 v 1.1
2.1. Fixed diagnostic failure, which made product unusable if high baudrate cannot be set
2.2. Fixed issue with BREAK is not handled properly
Download Simplescope v1.1.
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Thursday, December 7, 2006
Previous examples illustrated VELOOS programming aspects. This post provides an example of using object oriented paradigm for designing VELOOS application. Unlike the previous examples which were purely programming exercises, this example is dedicated to a utilitarian home appliance application and provides a "reference design" for VELOOS applications.
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Wednesday, December 6, 2006
This example for PIC12F675 implements set of “actuators” and “generators” controlled via USART. Actuators produce one 300 ms pulse when it receives command ‘ON’ and three 100 ms pulses delimited with 100 ms spaces (pauses) on command ‘OFF’. Generators, when turned on, produce pulses and spaces of the specified duration (1..255).
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Monday, November 20, 2006
VELOOS is an object-oriented message-triggered cooperative operating system for 8-bit Microchip microcontrollers licensed to public under the Open Software License
Release 1.0 includes VELOOS kernel and two timer drivers (TMR0 and TMR2 based). It has been tested on the following devices: PIC12F675, PIC16F690, PIC18F248.
Download VELOOS v.1.0
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Wednesday, November 15, 2006
This post continues series of examples and describes how VELOOS can be used for implementing time-triggered applications.
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Friday, November 10, 2006
The previous post gave a brief introduction to VELOOS design idea. VELOOS assumes that an application is decomposed on PDOs (Process Data Objects). This post describes by example features provided by VELOOS for implementing PDO.
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VELOOS – Very Low Overhead Operating System
VELOOS is a message-triggered cooperative operating system designed to run in places were a large vehicles can not run. Its implementation for PIC12F takes less than 200 instructions and 20 data registers1. With addition of a timer driver, it becomes a time-triggered RTOS.
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Friday, September 15, 2006
This post collects and organizes discussion theses posted on different forums.
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Saturday, September 9, 2006
In this post I present my vision of e# reflected through history of assemblers. For each stage in the assemblers’ history I am providing presumptive equivalents in e#, incrementing the complexity of each next example.
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