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Data processing
Peripheral interface enabling
Control interface extending
Figure 6-6 Main control board structure
Introduction
Drive module
Consists of motor drive and power component drive.
A/D conversion
Converts analog signals to digital signals which can be processed by FPGA or CPU.
Data processing
FPGA filters the digital signals collected during A/D sampling and saves the particular parameters.
It then transmits the data to CPU by various means (like interrupt control) for further processing.
The processed data will be displayed on the LCD screen.
Peripheral interface enabling
CPU module acts as the platform for software operation. It also enables the peripheral interfaces
like indicator board interface, LCD display interface, Ethernet interface, USB printer interface,
and the ports to barcode scanner, keyboard and USB. Besides, it provides a JTAG interface for
FPGA online programing, and a CPU debugging interface.
Control interface extending
Provide control logic and interfaces to the LCD screen, SD card, touch screen and recorder.
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