In the paper,the application of MicroBlaze soft core program on Xilinx K7 is introduced,and the configuration of BPI FLASH startup mode in Vivado software and the logic design process and software design of bootloader program in SDK are introduced,including the backup of Bootloader program.This program is a startup code running on MicroBlaze after FPGA hardware configuration is completed.It is used to transport the user program in BPI FLASH to DDR and guide the embedded system to run from the user program.When the first startup code verification fails,it can automatically run the backup Bootloader program.The design scheme solves the problems of occupying FPGA internal BRAM resources and startup security in complex MicroBlaze program.It has been applied in different existing projects and has universality and adaptability.
Key words
MicroBlaze /
Bootloader /
BPI FLASH /
start backup
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