How long is the protocol decoding time supported by the ZDS2022 oscilloscope?

At present, the ZDS2022 oscilloscope supports data protocol decoding with a time length of up to 3 screens during protocol decoding, and the center of the current screen is taken as the center. For example, at a 200us/div time base, the time length of one screen is 200us/div * 14div = 2.8ms; the time length of 3 screens is 2.8ms * 3 = 8.4ms; since the data length of protocol parsing is taken as the center of the screen, if the data frame header appears 4.2ms (8.4ms/2) before the center time of the screen, the program cannot find the frame header, resulting in parsing failure.

Therefore, in order to parse the data effectively, on the one hand, the relevant protocol trigger can be used to capture the beginning of the frame of the protocol signal, and on the other hand, the horizontal time base can be adjusted to ensure that the data of one frame falls completely within the time length of 3 screens.