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U-Boot transplantation on S3C44B0

2013-09-18
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Bootloader is the first link in the development of embedded systems. It closely links the software and hardware of the system. The performance of this bootloader has a crucial impact on the stability of the system. This article introduces the basic concept of Bootloader, the transplantation process of U-Boot on the S3C44B0 development board, and some issues of interrupt vector table setting. Keywords: BootLoader U-Boot S3C44B0X Interrupt vector table Simply put, Bootloader is a small program before the operating system kernel runs. Through this program, the initialization of each register of the microprocessor, the initialization of the on-chip external devices, the establishment of the memory map, and finally the operating system kernel and application code are loaded into the system RAM. Bootloader is written according to the specific system. Different platforms correspond to different bootloaders. For embedded systems, this feature is more obvious. There are many ways to develop it. One of the more common methods is to make specific changes based on the open source Bootloader combined with a specific target board. This article specifically introduces the transplantation of the open source code U-Boot for the target board of the S3C44B0 processor.

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