| 摘要 |
The present invention provides a digital data acquisition module, such as a digital oscilloscope, that includes a synchronous random access memory (RAM), a digital signal processing unit, and a master control unit. The digital signal processing unit is coupled to the synchronous RAM and includes at least one analog-to-digital (A/D) converter that digitizes an analog signal, and a digital signal processor that includes a dual-port RAM, a plurality of processing blocks and a communications interface. The plurality of processing blocks process the digitized analog signal data, store the processed signal data in the synchronous RAM, create display data from the stored signal data, store the display data in the dual-port RAM. The master control unit is coupled to the digital signal processing unit and includes an internal communications interface coupled to the digital signal processor communications interface, an external communications interface and a central processing unit that receives the display data over the internal communications interface and transmits the display data over the external communications interface.
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