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:

What is the Difference between Master Register Read and Master Read, and How Can I Best Implement those Commands?

Question from the Customer:

I am using the Control Center Serial Software with an Aardvark I2C/SPI Host Adapter as the I2C master. Can you help me understand the difference between Master Read and Master Register Read? The Master Read command appears similar to the Sequential Read command, an I2C read with a stop – what am I missing?


Which USB Cable Tester Fulfills Production Test Requirements?

Question from the Customer:

We have been using the Advanced Cable Tester - Level 1 Application with the Promira Serial Platform, and it’s been successful for debug and development. However, we are now setting up a production test system for USB Type-A to Type-C cables. In addition to needing to connect to both ends of this cable, becaus...

How Do I Identify the CAN Interface When I Have Four Komodo Can Duo Interfaces Connected to the Hub?

Abstract of hub data
Question from the Customer:

I am using a Windows computer to communicate to four Komodo CAN Duo Interfaces through a USB hub. I am running eight separate targets. How do I know which Komodo interface is handling which target? My problem – the Windows device manager associates a different port number for each Komodo channel each time I...

How Do I Talk to an I2C Translating Switch with an 8-bit Address?

Question from the Customer:

I am working with the Aardvark I2C/SPI Host Adapter and the Aardvark Software API (Python). I am using the command 0 100 read 0 0 4096. The I2C device I am working with is a PCA9546 translating switch: the address is 0xE0 and the EEPROM I am talking to connects to port 1 of the switch.

What changes ...

Why Do I See Different DC Resistance Results when I Flip a USB Type-A to USB Type-C Cable?

Question from the Customer:

With the Advanced Cable Tester V2, I am testing samples of USB Type-A to USB Type-C cables from various suppliers. In many cases, I see a DC Resistance failure for “GND+SHIELD A-Side Link”. I captured the results of a single cable with normal and flipped orientations (CC is on the same side as DP/DM, or CC...

How Do I Interface the Beagle I2C/SPI Protocol Analyzer to SPI Flash Slave and Master Devices?

Interfacing to hardware for data from SPI devices Image source: Geralt

Question from the Customer:

We are starting to use a Beagle I2C/SPI Protocol Analyzer to capture data that is sent to and received from a SPI serial flash device (25L64 type) by an MCU.

  • We have the pin-out for the SPI flash memory.
  • We also have the 10-pin header pin signal assignment list from the Beagle manual.
  • The t...