Method for upgrading field programmable gate array (FPGA) program

Abstract

The invention discloses a method for upgrading a field programmable gate array (FPGA) program. The method comprises the following steps of: 1, dividing the space of a Flash memory into a low address field, a medium address field and a high address field used for storing the FPGA program, a register parameter and an update bootstrap respectively, and setting an address field for loading a program from the Flash memory by an FPGA through a jumper; 2, immobilizing the update bootstrap in the high address field of the Flash, wherein different command menus are designed in the update bootstrap according to the different address fields; 3, connecting the FPGA and a computer through a serial port communication level conversion module; and 4, setting the jumper and starting the FPGA so that the FPGA loads the update bootstrap from the high address field and operates the update bootstrap, clicking the command as required, and performing update through a serial port. The method is simple and convenient in upgrading operation, can improve the efficiency and has good flexibility.

Description

technical field [0001] The invention relates to an embedded system, in particular to a method for upgrading an FPGA program. Background technique [0002] With the advancement of technology, the Field-Programmable Gate Array (Field-Programmable GateArray, FPGA) is becoming more and more powerful. It can embed a CPU soft core and run an operating system. More and more embedded products are powered by FPGA. Realization, it can realize products with complex functions and diverse requirements. In order to optimize the program and provide product performance, it is necessary to do multiple program upgrades. FPGA programs are generally stored in external Flash memory. Burning into Flash, and then installing the chip on the circuit board by soldering technology, this method is not convenient for software upgrades at any time due to performance improvement, and repeated loading and unloading of Flash devices can easily cause damage to the device and increase costs. Low efficiency;...

AI Technical Summary

Problems solved by technology

In order to optimize the program and provide product performance, it is necessary to do multiple program upgrades. FPGA programs are generally stored in external Flash memory. Burning into Flash, and then installing the chip on the circuit board by soldering technology, this method is not convenient for software upgrades at any time due to performance improvement, and repeated loading and unloading of Flash devices can easily cause damage to the device and increase costs. Low efficiency; the second is to upgrade the program by burning the Flash through the JTAG download cable of the FPGA and a special download tool, but this method cannot be separated from the FPGA design tool, and different FPGA chips have different design tools

The above two methods are not conducive to the rapid and smooth progress of design and production.

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