The DMX512 package is the core of the DMX512 led driver standard. It consists of a frame set containing deep synchronization information. The deep information is a "Break" and a "Markafter-break". It is this information that enables the receiver to detect the beginning of a frame and therefore can process the received data. Frame timing inspection shows that the longest time that the line is at a low level is 4 x (start bit) + 8 x 4 x (data bit) = 36 x, but a "Break" contains at least 88 "low level", The difference between the two is easily detected and can be used to synchronize the dimmer.

"Mark-after-break" is in the "high" state on the line, at least 8 祍 time width, "Mark-after-break" is necessary, because this can detect "Break", otherwise the start bit of the frame will follow "Break", so that the line has been in a low level state. It will be very messy at this time!

"0" value indicates that the following frame contains dimmer level information. The other 255 codes are not defined in the specification, but some manufacturers use other codes to send

Special information about the product. A dimmer that receives a non-zero start code "will" ignore the rest of the packet, but be careful, it will not always be checked!

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