Rena Ayeras

Description: Rena C. Ayeras is a writer, editor and blogger with a technical background: test, development, and managing and training technicians. Recognizing the value of the guidelines, reports and articles she wrote as an engineer; she chose to focus on those contributions and moved over to technical writing, and has since branched out to marcom and blogging. BSIT. Member of IEEE.


Posts by Rena Ayeras:

The Inside Story of Medical Equipment and Embedded Devices

The human body is a complex system. Engineers, scientists and physicians are doing their best to keep our systems running with embedded devices and medical equipment.

embedded devices and medical equipment
Paralysis may not be a permanent condition. 

When applicable, nerve stimulation and physical therapy are used to help the brain relearn how to communicate with an area where th...

How Do I Best Choose Which Level of Cable Tester Applications to my Applications?

Question from the Customer:

I clearly have use for the Advanced Cable Tester. I will be testing USB cables and want to know if I need the Advanced Cable Tester - Level 2 Application if I am just testing Type-C USB 3.1 Gen 1 cables? What is the benefit of using the Level 2  Application?

Response from Technical Support:

Thanks for your question!...

How Do Isolated Devices and Life-Saving Micro-Power Devices Run on Minimal Energy?

Sensors, processors, controllers - all electronic devices require power. Sometimes the energy source is continuous, such as direct AC power or AC converted to DC, easily replaceable batteries, or only need to function during the day, which makes solar power a viable solution. However, some devices don’t have access to constant external power,...

Which Software Packages Can I Use to View Checksums with the Aardvark I2C/SPI Host Adapter?

Question from the Customer:

I‘ll be using the Aardvark I2C/SPI Host Adapter and Flash Center Software and I have some questions -– how do I view checksums?  Also, can I get a checksum for the entire device?

Response from Technical Support:

Thanks for your question! The Aardvark adapter is compatible with the checksum byte feature. Regardin...

What’s the easiest way to run line commands with the Beagle USB 5000 v2 SuperSpeed Protocol Analyzer?

Question from the Customer:

I’m using the Beagle USB 5000 v2 SuperSpeed Protocol Analyzer - Standard Edition to monitor a Blu-ray recorder with an external USB-HDD. I’d like to run the device using command line.  This is all very new to me – can you send me an example of batch script? I’ll be using a MacBook.

Response from Technical Su...

What does I2C have to do with GPS data and how much more can GPS navigate on planet Earth?

satcomViewGPS data has been system integrated with UART for some time, an asynchronous system. With navigation becoming more prevalent in commercial products, as well as mobile robotic devices and the coming of self-driving vehicles, I2C is now being integrated with GPS signals.

These interfaces appear similar, both having two signal lines. Beyond that, t...

When is the Promira Serial Platform push-pull and when is it open collector?

Question from the Customer

I have some hardware questions about the Promira Serial Platform.  I am using two of the GPIO (pins 14 and 15) as DO (data output). Are they both open-collector pins?  Will I need to add pull-up resistors to my test board?

Response from Technical Support:

Thanks for your question!  The pins are dual function and ca...

How flexible and accurate is the Advanced Cable Tester with polarity inversion for USB 3.1? Can I swap the differential signals and still continue the SS and SS+ eye tests?

Question from the Customer:

I have a question about using the Advanced Cable Tester.

Advanced Cable Tester

The USB 3.1 specification includes handling lane bit inversion. For example, the “+” and “-“ lines in a SuperSpeed or SuperSpeed+ differential pair can be swapped.

Can you confirm that the Advanced Cable Tester will properly execute the SS and S...

How Do I Control the Number Of Bytes For Single Bit Write and Dual Bit Write?

Question from the Customer:Question from the Customer:

I am using the Promira Serial Platform to communicate on my SPI bus.  I’m using the SPI Active - Level 2 Application. I need to perform an SPI dual bit mode write at 20MHz as a master. The specifications show I can do this – I’d like to find out more about the flexibility and program...

How do I capture continuous data streams using the Beagle I2C/SPI Protocol Analyzer?

Question from the Customer:

I’m using the Beagle I2C/SPI Protocol Analyzer and need to save long message logs for analysis, a minimum of 24 hours. The buffer receives 12.5MB of data per minute. To log 24 hours nonstop, I would be storing 22.5GB of previous data in volatile RAM.  I would prefer to store the data logs on internal hard drive or...