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.

Email: r.c.ayeras@technology-writer.com

Posts by Rena Ayeras:

How can I best capture MDIO bus transactions with Total Phase tools?

Question from the Customer:

I need a protocol analyzer to capture MDIO bus transactions. I have a Total Phase 10-Pin Grabber Split Cable on hand, but I don’t see any markings for MDC and MDIO signals. Which pins should I use, and which Beagle protocol analyzer do you recommend?

Response from Technical Support:

Thanks for your questions! For y...

When you need to program SPI devices, do you know how much help comes with the SPI Host Adapter and the Software API?

Question from the Customer:

I am new and suddenly immersed with programming embedded devices. I need to quickly program the N25Q256A flash chip.  I’ll be using the Cheetah SPI Host Adapter with Cheetah Software API. For this project, I need to change the 3-bit address programming sequence to a 4-bit address programming sequence. Can you help...

What Tools Can I Use to Interface with Multiple SPI Slave Devices?

Question from the Customer:

I want to connect to multiple slave devices. With the Aardvark I2C/SPI Host Adapter, I would like to use an analog switch to make or break the connection to the slave devices chip select(CS), along with pull-ups. Do you have a recommended method for interfacing to multiple SPI slave devices?

Response from Technical S...

How can I send large data transactions, messages greater than 64 bytes, using the Aardvark I2C/SPI Host Adapter?

technology-serversQuestion from the Customer
For a communication scenario, I am using the Aardvark Software API for data transactions. Here is the call that I am using:

aa_i2c_write (handle, deviceAddress, AA_I”C_NO_FLAGS, numbytes, bufferin)

If I define numbytes=300, is there a limitation when sending data due to the buffer size of 64 bytes? In other words, I...

How Can I Obtain Details about Failures on my USB Type-C Cables Detected by the Advanced Cable Tester?

Question from the Customer:

I have the Advanced Cable Tester running tests on two identical working USB Type-C cables. The report shows one cable passed everything on the physical wiring section, but the other cable failed the physical wiring on SBU1 and SBU2. I have checked all wiring and function of these two cables to make sure they are wor...

What Are the Best Tools for Programming 1.8v and 3.3v SPI Devices when Using a Flash Socket Board?

Question from the Customer:

I need to program 1.8V SPI devices with one of your Flash Socket Boards.

I reviewed the user manual for the Level Shifter Board, but it is not clear how to set the target voltage of the Cheetah SPI Host Adapter so that it is 5V when used with the level shifter and 3.3V when it is used with the Flash Socket Board dire...

How Can I Program an SPI Host Adapter to Communicate with Three SPI Slaves?

Question from the Customer:

I have been using your Aardvark I2C/SPI Host Adapter for many projects. For the latest project, I need to set up the Aardvark adapter to communicate with at least three SPI slaves. I have many evaluations to run  – I don’t want to change the wiring of my setup for each project.  If I used Aardvark API Software,...

Which SPI Host Adapter Can I Use as an SPI Slave that Delivers a Large Enough Response for My Setup?

Question from the Customer:

The lab has a Cheetah SPI Host Adapter. It works great as an SPI master, but for the current project I need an SPI slave that can transmit at least 256 bytes. Unless there’s a way the Cheetah adapter can be programmed as a slave, what do you recommend? I’d also like these other details about your recommendation.

...

What Are the Best Tools for Programming 1.8v and 3.3v SPI Devices when Using a Flash Socket Board?

Question from the Customer:

I need to program 1.8V SPI devices with one of your Flash Socket Boards.

I reviewed the user manual for the Level Shifter Board, but it is not clear how to set the target voltage of the Cheetah SPI Host Adapter so that it is 5V when used with the level shifter and 3.3V when it is used with the Flash Socket Board dire...

I need to capture high-speed eSPI traffic, what do you recommend?

Question from the Customer:

I’m trying to monitor eSPI traffic at 48 MHz. However, the method I’m currently using degrades the eSPI signals.  To get clean signals, the bus had to be slowed down to 8MHz before it was reliable again. Unfortunately, that does not support the functionalities that I need to verify and support.

In addition, I wa...