FPGA逻辑设计注意事项， 这是一个在逻辑设计中注意事项列表，由此引起的错误常使得设计不可靠或速度较慢，为了提高设计性能和提高速度的可靠性，必须确定设计通过所有的这些检查。-FPGA logic design considerations, this is a note in the list of logical design, which often makes the design errors caused by unreliable or slow, in order to improve design performance and reliability of speed, the design must be determined by all of these Check.