关键词: PowerPC, FPGA, 自动加载

Abstract: In order to meet the automatic loading requirement of an FPGA after being powered on each time, a system consisting of a PowerPC, an FPGA chip of Xilinx A7 series, an FPGA chip of Xilinx K7 series and a Flash chip is used. A host computer sends an instruction to the PowerPC through a serial port, and the PowerPC reads a configuration loading file in the host computer after parsing the instruction. The file data is transmitted to the FPGA chip of the A7 series through a local bus, and the data is written into Flash to be stored. After the FPGA is powered on, a configuration file stored in the Flash is automatically loaded into K7 under the control of A7. While processing a large amount of data and running complicated applications such as high-speed data interfaces and protocols, this system conveniently and quickly updates configuration loading files through a host computer to realize a power-on automatic loading function of Xilinx K7 series FPGA chips. In this way, on the basis of meeting the design requirements, no additional dedicated hardware circuit is required to realize the loading function, so that the cost is saved, the area of the circuit board is reduced, and the use of devices is reduced.

Key words: PowerPC, FPGA, automatic load