Patent ID: 7260489
Filing Date: 2007-08-21
Classification: G16H

Abstract:
1. A method of displaying multi-channel waveforms, which is used for displaying multi-channel waveforms simultaneously in embedded systems, the method comprising the steps of: a. dividing a waveform screen in a video memory that is mapped to a display terminal into a plurality of waveform windows arranged in a vertical direction, each of which displays a waveform or displays multi-channel waveforms in parallel in a horizontal direction respectively, wherein boundaries of each of the windows are defined by a plurality of values set in at least a set of boundary registers; b. establishing a waveform parameter table in a memory of the system, which contains characteristic parameters of each waveform in each of the waveform windows, wherein the characteristic parameters contain at least a parameter indicating a display mode of the waveform; c. writing waveform data into a logical space in the waveform screen corresponding to the waveform by writing operations from CPU to the video memory; and d. on a basis of the parameters of the waveform windows in the waveform parameter table, performing a display mode defined by the parameter by means of changing the mapping relationship between the video memory and the display terminal, before transmitting the data of each of the waveform windows read out from the video memory to the display terminal by a display drive circuit.