Q: For my application, I’d like to conduct real-time audio testing. I am using the AardvarkTM I2C/SPI Host Adapter along with the Python API to deliver SPI data in packets of 8 bytes. I am trying send my 8-byte packet out every 1ms, but it appears the minimum overhead of the aa_spi_write() call is 2ms. I have not found a limitation in my Python script - the loop is much faster than 2ms. However, when I look at the transaction on a logic analyzer, there is a significant amount of time between the packets, as shown below.

I have a question about using the Beagle™ USB 480 Protocol Analyzer. In our latest designs, many of the USB links are embedded – chips are interconnected on the same circuit board. My question: How do we attach the analyzer to an embedded USB link?

This article is Part 2 of an example of programming SPI Flash devices using the CheetahTM SPI Host Adapter and the Flash CenterTM Software. Part 1 provides an overview of the programming modes of the Flash Center Software, and the memory map and commands of the STMicro M25P32 device used in this example.  In this post, Part 2, we’ll go over exactly how to use the software along with the host adapter to program SPI Flash devices.

This week’s article is about using a CheetahTM SPI Host Adapter for programming SPI EEPROM and flash devices, which can be done using CheetahTM GUI Software, Flash CenterTM Software, or the CheetahTM Software API. This example will use the ST Micro SPI Flash M25P32 mounted on an SPI Flash Demo Board, and the Flash Center Software to program SPI flash devices and then read back the data.

I am using the AardvarkTM I2C/SPI Host Adapter with a PMBus (Power Management Bus) device. The protocol of the PMBus device requires a Repeated Start (Sr). The Read Byte protocol looks like this:

I need to simultaneously monitor both the I2C bus and the SPI bus. I  have one  BeagleTM I2C/SPI Protocol Analyzer, as well as one Beagle USB 480 Protocol Analyzer. The setup  I need:

Support Question of the Week: Using the Beagle I2C/SPI Protocol Analyzer, How Can I Export Captured Data from the Data Center Software to Process the Data More Easily?

I’m looking to set up a loopback so that data sent from an Aardvark™ I2C/ SPI Host Adapter is echoed. How can I do that?