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Monthly Archives: July 2006

A Simple Environment for Automated Testing

This post describes how SISAM can be used to build a simple environment for automated testing of embedded applications.

SISAM Protocol

SISAM uses RTS/CTS flow control for reading command and DTR flow control for sending acquired data. This means that PC should set RTS before sending commands and watch for CTS (e.g. use CTS sensitivity option). When PIC goes into data acquisition mode, it sends an ASCII string starting with Y4-MODE: followed with new mode description. […]


Simplescope is a simple solution for data acquiring, signal visualizing and analysis. It is build up from three components: SISAM – PIC-based dual channel sampler SISAM1 a COM interface to SISAM SISAN – Windows application that controls sampler, acquires and visualizes logical signals Please follow respective link to read more about components and their capabilities. To […]

SISAN Screenshots

In this post I have published more SISAN screenshots.

SISAN Overview

SISAN – SImlpe Signal Analyser – is a Win32 application capable to control Simple Sampler hardware, acquire sampling data, store sampling data to a file, and visualize logical signals reading data either from a file or directly from the sampler. SISAN provides basic facilities for timeline navigation, beam and surface look customization.

Overclocking COM port

Most of recent mainstream motherboards have USART chip supporting speeds above 115200. However, there are few obstacles.

SISAM Overview

SISAM – SImple SAMpler – is a simple PIC-based hardware for precision dual channel data acquiring with moderate resolution (up to 500 ksps in continous mode and up to 5 Msps for very short sequence). It uses USART and SSP for sampling signals and software routines for RS232 communication. USART is configured for synchronous master […]

SISAM Command Language

This chapter describes SISAM Command Language, provides Command Language BNF and describes SISAM responses

SISAM Hardware

SISAM Hardware schematic is given on Figure 1. Besides the MCU PIC16F690 it includes a 20 MHz crystal and a RS232 matching circuit.