C6678 Ethernet loading method with flexible and variable IP addresses

Abstract

The invention provides a C6678 Ethernet loading method with flexible and variable IP addresses, and relates to the technical field of information processing. The method comprises the steps of extracting the MAC address of the C6678 in a Boot packet and sent from the C6678 in the network grabbing mode by an upper computer; simulating and generating an ARP response packet, wherein the ARP response packet contains the to-be-set IP address of the C6678, and establishing the dynamic correspondence relationship between the set IP address and the MAC address of the C6678; finally, notifying the corresponding C6678 of the IP address in the broadcast mode, and sending a loaded image file to the C6678 through the network UDP (user datagram protocol) protocol. Based on the above manner, an ARP pool is configured in a dynamic mode and each IP has an aging time. An effective ARP analysis address can be generated in time after a board card is changed or an IP is modified. As a result, the situation problem that the loading fails due to the IP address conflict in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of information processing, in particular to a C6678 Ethernet loading method with a flexible and changeable IP address. Background technique [0002] The TMS320C6678 (C6678 for short) of Texas Instruments (TI) is a multi-core digital signal processor (DSP) chip widely used in the field of embedded high-performance computing in China after 2014. [0003] TI's manual SPRUGY5B "KeyStone Architecture Bootloader User Guide", June 2012 mentioned that C6678 has multiple loading methods, which can be loaded through JTAG (test interface for debugging), Ethernet (Ethernet, referred to as ETH), PCIe (PCI Express bus) , SRIO (high-speed serial bus), SPI (serial peripheral interface), I2C (two-wire serial bus) and other interfaces to load software. TI has integrated RBL (ROM Boot Loader, built-in loading core) in C6678, which can choose to enter the corresponding loading mode according to the external input, receive and ...

AI Technical Summary

Problems solved by technology

[0016] a) The IP address of the DSP is burned in the EEPROM of the I2C bus interface, which is fixed. To change the IP address, you must use the JTAG emulator to re-burn the EEPROM, which is very inconvenient;

[0017] b) It can be seen that this method is dominated by DSP, and the host computer cannot control the specific loading process of DSP

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