Interaction Design Of Arbitrary Waveform Generator Based ARM7

Arbitrary Waveform Generator, as a common supply oscillator, is widely used in the fields of scientific research, productive practice, teaching practice and so on. With the rapid development of micro-electronics and computer technology, people have high demands on AWG's performance,easy operation and interface friendliness. User Interface, which is an important component part of AWG system, can supply friendly interface to users and promote the popularizing rate of instrument. Therefore human-machine interface design of AWG has become an important research subject.ARM processor, high performance and low power consumption, developed at top speed in recent years and have a leading position in the field of 32 bit embedded micro-controller. This dissertation use LPC2478 processor as the control core chip of AWG. Making use of the peripheral functions, including SDRAM,SRAM,UART,LCD,USB controller modules, we can design the master control circuit of AWG. Keyboard and LCD are both extract from control plate.This dissertation does the human-machine interaction interface research based on LPC2478 Without embedded operation system. Using LPC2478 can make a reasonable arrangement for system software and hardware resources, extending modules with processor's peripheral interfaces, using 4.3-inch TFT LCD display screen, based on analysis in detail of AWG's functions, this paper analyzes the interaction design of interface, and proposes a multi-window and multi-menu display method. It designs and completes a human-machine interaction interface of AWG which has easy operation,low resources consumption,high performance.