User Guide (Version 2.2) of the
SiRad Simple® Evaluation Kit
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3.6 Understanding the Error Info Field
The ‘Error’ info field is located in the top left of the WebGUI, see Figure 33.
Error flag
Description
CRC
UART transmission CRC checksum errors
RFE
radar frontend configuration errors
PLL
PLL configuration errors
BB
baseband processing errors
PRC
errors in the signal processing
Figure 33: Error info field
Temporary errors are indicated in yellow and persistent errors in red. Temporary errors are errors
that are raised during processing but do not last longer than 3 times checking them. The temporary
error flags are removed automatically. Persistent errors are errors that last longer than 3 times
checking them and can be removed manually by resetting the sensor or by using the command
frames explained in the Protocol Description.
3.7 Understanding the Data View
Figure 34: Data view with different elements in the display scene
Figure 34 shows a typical spectrum output of the sensor when placed on a tabletop and looking to
the ceiling. Viewing a radar target spectrum for the first time might be confusing for the beginner.
However, with some practice, it is easy to find targets and understand why some things work while
others might not.