Tips, Tools and Applications for the Electronic Industry in Europe

How to program and verify SPI memory chips in Duo-Quad SPI mode?

Posted on 2016/09/19 by George

If you are using the Cheetah SPI Host Adapter, but working with a new SPI memory chip (GD25Q80CTIG) that supports Duo and Quad SPI modes, it looks like you need a different approach.

You have been creating XML files for new chips and prototypes – and like the UI of  the Flash Center Software from Total Phase. You like the software and would like to continue with Flash Center, what should you do?

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10 myths about WiFi interference

Posted on 2016/09/09 by George

Growing ubiquity of wireless devices combined with the advent of mobility applications requires businesses to be diligent in managing inference throughout their deployments. The many wireless technologies and commonplace electric devices already in use and newly emerging impede wireless performance.

WiFi interference can be a major inhibitor to wireless performance, creating security vulnerabilities and wireless network instability.

This blog post exposes the top 10 most pervasive myths around wireless interference.

  1. The only interference problems are from other 802.11 networks.

    There are a tremendous number of 802.11 devices out there. It is true that the other 802.11 networks can cause interference with your network. This type of interference is known as co-channel and adjacent channel interference. But since other 802.11 devices follow the same protocol, they tend to work cooperatively-that is, two access points on the same channel will share the channel capacity.
    In reality, the many other types of devices emitting in the unlicensed band dwarf the number of 802.11 devices. These devices include microwave ovens, cordless phones, Bluetooth devices, wireless video cameras, outdoor microwave links, wireless game controllers, Zigbee devices, fluorescent lights, WiMAX, and so on. Even bad electrical connections can cause broad RF spectrum emissions. These non-802.11 types of interference typically don't work cooperatively with 802.11 devices, and can cause significant loss of throughput. In addition, they can cause secondary effects such as rate back-off, in which retransmissions caused by interference trick the 802.11 devices into thinking that they should use lower data rates than appropriate.
    Summary: The unlicensed band is an experiment by the FCC in unregulated spectrum sharing. The experiment has been a great success so far, but there are significant challenges posed by RF interference that need to be given proper attention.
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Cross-Platform, Dual-Band Spectrum Analyzer For Wireless Professionals & Global Cable Industry

Posted on 2016/08/30 by George

Oscium is announcing WiPry 5x, a dual-band spectrum analyzer that visualizes 2.4 & 5 GHz on both iOS and Android. By adding coverage to the Android market and supporting 5 GHz, Oscium has expanded their customer base and made some significant improvements. These strategic improvements give Oscium the ability to provide what customers need. Bryan Lee, President of Oscium, said, “We have listened to the professionals in the field and are excited about this release”. Here are some highlights of the new product:

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Free I2C/SPI EEPROM and Flash memory programming GUI

Posted on 2016/08/22 by George

The Flash Center Software allows engineers to quickly erase, program, and verify I2C- and SPI-based EEPROM and Flash memory chips that are interfaced through the industry-leading Aardvark I2C/SPI and Cheetah SPI Host Adapters as well as the Promira Serial Platform. The Flash Center Software now supports over 500 memory chips from major chip manufacturers. This latest release adds additional Integrated Silicon Solution Inc. (ISSI) parts to the already impressive list:

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Differences and similarities between I2C and SPI protocol analyzers?

Posted on 2016/08/15 by George

What do you choose for I2C and SPI protocol analyzers? Let's take a look at their differences and similarities.

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Attention: To All Total Phase Promira Serial Platform Customers

Posted on 2016/08/10 by George

The purchase of a Promira Serial Platform includes a one-year hardware warranty as well as a one-year application support agreement. For customers who purchased their Promira platforms prior to July 2015, Total Phase has extended your hardware warranty and application support until August 31, 2016 - at no additional charge.

The hardware warranty protects you financially from the potential failure of an older device. And your Promira application support service agreement provides access to new firmware, software, technical support, and the ability to upgrade your Promira platform with additional applications.

Your Promira platform application support agreement end date is embedded in the license file. In order to update your device with the latest firmware, the license file must first be updated.  Follow these steps to take advantage of the latest capabilities of your Promira platform:

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How to Trigger on I2C address

Posted on 2016/08/02 by George

Triggering is a crucial feature on oscilloscopes and logic analyzers. It allows you to capture signals at very specific instance that is relevant to your application. As embedded systems complexity increases, so does the need for complex triggering.

Most logic analyzers allows you to trigger on logic state changes like rising or falling edges. ScanaQuad goes way beyond that and allows you to trigger on serial protocol data frames. This can be an asyncronial data word an I2C address or virtually any sequence of logic levels that can be defined.

In this quick tutorial we show you how to configure ScanaQuad logic analyzer to trigger on a specific I2C transaction.

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How to Convert LogiScope CSV Datalog into PulseView Files

Posted on 2016/07/12 by George

Have you ever wanted to view a LogiScope CSV File using an existing waveform viewer? It's now possible using PulseView!

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Generate and Capture Logic Signals Simultaneously with ScanaQuad

Posted on 2016/07/04 by George

Watch this tutorial video and learn how you can stimulate an I2C memory device and record its responce.

Learn all about ScanaQuad

Get ScanaQuad Now

 

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Oscium LogiScope Probes Embedded System Intersection

Posted on 2016/06/27 by George

In the image above Oscium's logic analyzer, Logiscope, and an iPad monitor numerous logic states in a micro controller implementation of a common traffic intersection. There are traffic lights in the model indicating travel for pedestrians, and cars traveling north and south, and cars traveling east and west. The finite state machine model is frequently used in programming as a basis for controlling a system with multiple inputs and outputs. Texas Instrument's TM4C123G 64-pin Cortex M4 micro controller and LaunchPad evaluation board provide the programmable control for the system.

Simple Finite State Machines

A finite-state machine (FSM) is a model used to design computer programs and sequential logic circuits. Finite state machines are system models characterized by the following:

  • A particular FSM is defined by a list of its states and the triggering condition for each transition
  • The machine is in only one state at a time
  • The state it is in at any given time is called the current state
  • It can change from one state to another when initiated by a triggering event or condition
  • The next state and output of an FSM is a function of the input and of the current state.

 

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