| A design of portable digital oscillograph based on MCU is proposed in this thesis. In our sampled machine, signals are digitalized with a high-speed data processing module of TLC5510, the data processing and system control unit is constructed based on the MCU of W78E516BP, and a dual-port RAM of IDT7132 is used as a memory for the wave to be displayed with terminal LCD. In this thesis, the architecture of the system is firstly described, then the principles of each functional module of the whole system and the software design ideas are presented along with the detailed human-machine interfaces. Finally, the result of the design is presented.
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