Realization of a New Data Acquisition System
The new data acquisition system includes two parts. The inferior part has nine AT89C2051 microcontrollers, eight of which act as acquisition CPU to realize 16 channels data acquisition, and one of them as control CPU to hold results and control the 16 channels data acquisition. To ensure real-time acquisition, the acquisition CPU and the control CPU communicate with each other by parallel way. ... To gain acquisition data, the superior part communicates with the control CPU of the inferior part by serial port.