FPGA is the unlimited capacity can be programmed to repeat, flexible architecture, rich in resources such as cabling and trigger a series of features makes it electronic products designed to meet the diverse needs. FPGA application areas mainly concentrated in the replacement of generic logic and complex logic, the use of repeat programming, integrated board-level design, high-speed counter, modified implements, accumulator and compared with the realization of bus interface logic, and so on.
Application and development of the FPGA device performance must have a comprehensive understanding of, for example, the device capacity, speed, power consumption, pin interface requirements and the number of comprehensive consideration, but we must pay attention to the following details:
● Sequential Circuits application "," reset circuit to ensure that boot power, the home Sequential Circuits in the initial state;
● device with the power and access to a must-pin 0.1 μ F capacitance no sense, since filtering and decoupling;
● number is not even using the reverse method for a series of "delay circuit", a delay time is not accurate, and two automatic compiler will be redundant circuits can be simplified as a swap;
● major global buffers must be dedicated pad-driven secondary buffer can be derived from the overall situation of the pad or semi-dedicated internal network;
● pin prohibited between short-circuit, Jiyong multimeter direct measurement device pin;
● device I / O such as has been defined as output, the bogey-plus signal, otherwise, they will damage chip;
● low-power devices such as overloading, then not only will the device used by a significant reduction in work efficiency, and even injury chip.
Conclusion
Based on EDA technology field programmable gate array FPGA integration, flexible structure, design methods varied, short development cycle, debug convenient, easy to modify, very wide field of applications. Faced with the rapid development of science and technology, the market competition is very fierce reality, the master of skilled EDA design technology, ingenious use of FPGA flexibility is essential, the prospects will be very optimistic.
只能做到這樣了。。。應該有些地方不夠完美。。。將就吧。。