关键词: 并行加载, 8位宽, FPGA

Abstract: SRAM-based FPGA is of volatility, which results that it needs to load configuration data from external ROM before running with some function after power up. The paper analyses the configuration procedure and construction of configuration file (bitstream file) of FPGA. Meanwhile, for parallel configuration hardware, by modifying the bitstream file and writing it into NOR Flash, the paper provides a method which makes FPGA to configure with x8 bit data, instead of changing x16 bit configuration hardware. When MSB of configuration pin failed, this method can be applied to cut the maintenance cost. And it can provide more flexibility. In the end, the paper makes a test on PCB board, and the result proves that the method is available.

Key words: parallel configuration, x8 bit, FPGA