Total Phase now supports eSPI, a brand-new protocol introduced to replace LPC on motherboard bring up in PCs and servers.  With our new eSPI Analysis Application, the Promira Serial Platform can now be used to monitor eSPI messages in real time.  Using the SPI Active applications it is possible to generate eSPI messages. This article shows how to send eSPI data from a Promira platform with SPI Active Level 1-3 applications and Promira API, which will be monitored with another Promira platform with the eSPI Analysis Application and the Data Center Software.

• One Promira platform (referred to as Promira-2) is used with an SPI Active - Level 3 Application and the Promira API I2C/SPI Active API Python espi_generator example software that transfers eSPI data at bitrate 66 MHz.  This is contained in the eSPI Active Example Files.

• The other Promira platform (Promira-1) is used with the eSPI Analysis Application and the Data Center Software to monitor the eSPI bus.
• The two Promira platforms are connected through a 34-34 I2C/SPI/eSPI cable. One computer is used for both Promira platforms.

1. On the computer, download the Data Center Software, Promira API I2C/SPI Active, eSPI Active Example Files, and Python 2.x.
2. Connect the two Promira platforms to the computer, and connect Promira-1 to Promira-2
3. Configure the Data Center Software for eSPI under the device settings menu

• With Promira-2, run the detect example that is provided with the API software: verify the Promira-2 is detected on the computer and then Transfer eSPI data from Promira-2.

Figure 1: Starting the API Example

• Looking at the Data Center Software, you can now view the eSPI data that is monitored by Promira-1 all in real time.

Figure 2: Viewing Real-Time Data with Data Center Software

For details about this setup and running tests, please refer to our knowledge base article Monitoring eSPI Messages Using Promira Platform and Data Center.

You can also try out more examples using our eSPI Active Example Files.

Additional resources that you may find helpful include the following:

• Promira Serial Platform User Manual
• Promira API Documentation

• Data Center Software User manual

• Monitoring eSPI Messages Using Promira Platform and Data Center

If you have questions about our Total Phase products, feel free to email us at sales@totalphase.com, or if you already own one of our devices and have a technical question, please submit a request for technical support.