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:

How Can I Use a Host Adapter for Slower I2C Devices without Timeout or Bus Lock Occurring?

Question from the Customer:

We are using the Aardvark I2C/SPI Host Adapter and Control Center Serial Software to interact with an I2C slave device. Our challenge is the bitrate of the target device is 500 Hz, which is below the bitrate range that the Aardvark adapter supports: 1000 Hz. The details of our setup:

  • The I2C dongle (Aardva...

How Do I Interpret USB Data Errors for Isochronous Endpoints?

Question from the Customer: I am using your Beagle USB 480 Protocol Analyzer and Data Center Software to troubleshoot a USB 2.0 device and its interaction with the host. The system has several interfaces and endpoints. The host connects to multiple devices, two of which are audio devices: one input and one output. The USB device tha...

Why is Captured USB Traffic Showing Orphaned Data Transactions and How Do I Get Around That?

Question from the Customer:

I am using the Beagle USB 5000 v2 SuperSpeed Protocol Analyzer - Standard Edition, and I am having some issues with seeing orphaned packets and empty packets. Some IN (incoming) packets are displayed as orphans, and some IN packets are displayed with no data. What are the potential causes of these orpha...

How is the DC Resistance of a Cable Measured When You Cannot Access the Paddleboard Directly?

Question from the Customer:

My company is using the Advanced Cable Tester v2 (Advanced Cable Tester v2) to test a variety of cables, such as USB, HDMI, and DisplayPort cables.

We have a question about our test results for the USB-C to USB-C cables. The DC resistance of the VBUS pins does not pass the test. However, testing the conta...

What Are Partial Errors and How Can I Avoid Them When Analyzing SPI Data?

Question from the Customer:

I have a question about using the Beagle I2C/SPI Protocol Analyzer. I am testing SPI devices. I have two sets of data which are shown below. I am using the Control Center Serial Software for viewing and analyzing the captured data.

Comparing new and old data:

The old data shows errors. I have personall...

Compared to an Oscilloscope, What Information Does a Protocol Analyzer Provide about Waveforms?

Lab equipment for troubleshooting and analyzing data waveforms

Source: Pexels

Question from the Customer:

I am troubleshooting the serial bus of a system with an oscilloscope. In addition to the electrical characteristics, I need more details to understand the performance of the system. I am looking at the Beagle I2C/SPI Protocol Analyzer – what details can it provide me about wavefo...