To Verify the USB Data Path is Operating at Maximum Speed, How Do I Adjust Periodic Timeout and Polling?

Question from the Customer:

I am using the Beagle USB 480 Protocol Analyzer to debug some issues on my CDC ECM implementation on a STM-32 MCU. I have questions about the results I’m seeing with Data Center Software.

I am looking into the significance of the POLL and IN-NAK counts, as well as the Length that is reported in some records as by...

Which Host Adapters Can Operate as either SPI Slave or SPI Master and Run from One Computer?

Question from the Customer:

I have been using the Cheetah SPI Host Adapter as an SPI Master – now I need the functions of both an SPI Master and an SPI Slave. I see the Cheetah adapter only functions as an SPI Master.

For ease of use, I’m looking to use the same model for these functions. I need to operate these SPI devices independently ...

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 aaspi_eeprom.py 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 ...