fpga的介绍（The introduction of FPGA）.docVIP

fpga的介绍（The introduction of FPGA） SCM can be understood as integrated on a single chip microcomputer system, small but complete, also has a unit controller memory bus and input and output devices, is used to store the execution of the program, the programming of MCU is programmed on the ROM, after power in ROM program get one by one as in the memory of a computer program. Todays SCM also integrates A/D, D/A conversion, and serial ports and other means of data exchange with the outside world. Microcontroller speed and performance limited, but in some basic control on more than enough. FPGA is the control level is lower, so the greater freedom of the chip, the FPGA programming is compiled into FPGA in the internal connection table, equivalent to FPGA provides a large number of NAND gate, or gate, flip flops (can be used to form the basic NAND it) a digital device, programming determines how many devices is used and the connection between them. As long as the FPGA scale is large enough, these digital devices can theoretically form all digital systems, including the microcontroller or even the CPU. FPGA has a great advantage in anti-interference and speed. FPGA (field programmable Gate Array), is a field programmable gate array, it is a product of programmable devices based on PAL, GAL, CPLD and so on the further development of the. It has emerged as a semi custom circuit in the field of ASIC (ASIC), which not only solves the shortcomings of custom circuits, but also overcomes the shortcoming of the limited number of gate circuits of original programmable devices. Edit this paragraph FPGA introduction background At present, the circuit design completed by hardware description language (Verilog or VHDL) can be simplified Single synthesis and layout, fast burning to FPGA to test, is the mainstream of modern IC design verification technology. These editable components can be used to implement some basic logic gates (such as AND, OR, XOR, NOT), or a more complex set of func