Hello, TI senior engineer, in the document "DLP ® NIRscan 
In the Nano EVM User's Guide“, there is a sentence that says "Through this interface 24 patterns are transmitted per frame". I would like to know why an image has 24 patterns (because 24 patterns also appear in embedded programs). How can I understand this sentence and help explain it in detail? Thank you, as shown in the following image:
Hello Chang,
The 24 patterns here are actually the 24 bit planes that gets displayed on DMD per frame. Do not confuse these with the actual column or hadamard patterns.
Since a DMD can only display a binary data either 0 or 1 at once and also there is a refresh cycle which can not exceed a certain limit. Each frame needs to be divided into a certain number of bit planes(24 in this case) to be displayed on DMD. This makes the DMD to achieve even grayescale patterns if needed based on the applciation and not just pixel on or off.
FYR below is an example of how 24 bit planes corresponds to 24 bit RGB image.
Regards,
Akhil
