Zynq platform remote upgrading method

Abstract

The invention discloses a Zynq platform remote upgrading method, which comprises the following steps that: 1) a Zynq platform enters an FSBL execution process and executes steps 2) and 3); 2) the Zynqplatform sends an upgrade request data packet to an upper computer; after receiving the upgrading request data packet, the upper computer matches a corresponding upgrading mirror image file and sendsthe upgrading mirror image file to a Zynq platform; (3) the Zynq platform receives the check code and the upgrading mirror image file, verifies the upgrading mirror image file, and writes the received upgrading mirror image file into FLASH; (4) the Zynq platform continues to execute the subsequent starting process, and the Uboot mirror image is loaded from the FLASH; if the loading succeeds, skipping to the DDR to execute the Uboot code; if the loading is unsuccessful, skipping to the step 2); and the Zynq platform resends the upgrading request data packet. According to the method, mirror image receiving and storing of the upgrading data are completed in the FSBL execution process, the dependence of the upgrading process on the running state of the Zynq platform is greatly reduced, and stable transmission of the data is ensured by using a data transmission mode of a main serial port and a standby serial port.

Description

technical field [0001] The invention relates to the field of upgrading embedded systems, in particular to a method for remotely upgrading a Zynq platform. Background technique [0002] The Zynq platform is a fully programmable system-on-chip launched by Xilinx. Because of its good design flexibility, excellent performance, and high real-time performance, it is widely used in portable devices. With the development of embedded device software systems, the Zynq platform The upgrade methods are also becoming more and more diversified. The existing upgrade methods can be divided into: SD card upgrade and remote upgrade. SD card upgrade needs to solidify the upgrade code during the equipment production stage. After the equipment leaves the factory, online modification and upgrade cannot be performed. , once there is a demand for upgrading, it is necessary to disassemble the machine to replace the component board or replace the program memory chip. Therefore, in order to meet the c...

AI Technical Summary

Problems solved by technology

[0002] The Zynq platform is a fully programmable system-on-chip launched by Xilinx. Because of its good design flexibility, excellent performance, and high real-time performance, it is widely used in portable devices. With the development of embedded device software systems, the Zynq platform The upgrade methods are also becoming more and more diversified. The existing upgrade methods can be divided into: SD card upgrade and remote upgrade. SD card upgrade needs to solidify the upgrade code during the equipment production stage. After the equipment leaves the factory, online modification and upgrade cannot be performed. , once there is a demand for upgrading, it is necessary to disassemble the machine to replace the component board or replace the program memory chip. Therefore, in order to meet the continuously changing needs of customers and improve the performance of the system, embedded devices need to have a remote upgrade function. Remote upgrade uses upper and lower computers. Collaborative implementation, the existing Zynq platform remote upgrade method is to send the upgrade file from the upper computer to the lower computer to complete the image upgrade after the Zynq platform is started, which has the following problems: the upgrade process depends on the normal startup of the Zynq platform, and the Zynq The platform startup process needs to go through multiple stages such as Boot ROM->FSBL->Uboot->Kernel->LINUX->APP, etc. Due to the existence of dependencies in the startup process, any startup failure at any stage cannot enter the upgrade process;

[0003] At the same time, in the existing upgrade system, the upper and lower computers only transmit data through a single port, and the data transmission link is single. The upgrade data transmission depends on the normal loading of the Ethernet card, WIFI network card and other device drivers, and a stable data link cannot be established.

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