针对机载平台小型化设计带来的FPGA多版本程序加载问题,提出了一种全新的FPGA多版本程序加载方法。基于“MCU+CPLD+FPGA”的硬件架构,采用在线更新+连续存储的方式进行多版本程序固化,采用ICAP3软复位启动引导方式实现任意地址段FPGA版本程序的启动。通过多重握手机制确保了程序加载的可靠性。该方案硬件实现简单,相比传统方式,可存储的FPGA程序版本有了大幅提升,且已在多个工程中成功应用。
Abstract
Aiming at the problem of FPGA multi-version program loading caused by the miniaturization design of airborne platform,a new method of FPGA multi-version program loading is proposed.Based on the hardware architecture of MCU+CPLD+FPGA,the method of online update+continuous storage is used to solidify the multi-version program,and the ICAP3 soft reset boot mode is used to start the FPGA program version in any address segment.The reliability of program loading is ensured through the multi-grip system.The hardware implementation of this scheme is simple.Compared with the traditional way,the version of the stored FPGA program has been greatly improved,and has been successfully applied in many projects.
关键词
FPGA /
程序加载 /
ICAP3
Key words
FPGA /
program load /
ICAP3
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