[原创]ARM Bootloader 源程序分析及其流程图,中断服务程序编写举例
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第一章:ARM ABC....................................... 1
THE ARM PROCESSOR .................................................................1
缩写.................................................................................................. 1
处理器模式及对应的寄存器......................................................... 1
ARM 寄存器总结........................................................................... 4
ARM INSTRUCTIONS .....................................................................5
指令集概述..................................................................................... 5
指令的条件执行............................................................................. 7
程序分支.......................................................................................... 8
Data Movement Memory Reference Instructions............ 9
EXAMPLES...................................................................................10
向量乘............................................................................................ 10
字符串比较....................................................................................11
子程序调用................................................................................... 12
第二章:引导代码分析..................................................... 13
前言...........................................................................................14
概述...........................................................................................14
与BOOT 相关硬件:FLASH ROM ............................................... 14
BOOT 的主要功能....................................................................... 17
执行流程及代码分析...............................................................22
参参数数初初始始化化................................................................................... 22
中断................................................................................................ 24
初始化硬件................................................................................... 36
跳转到C 语言程序,开始第二阶段的初始化和系统引导..... 47
初始化堆栈................................................................................... 47
第三章:中断服务程序编写............................................. 52
必需的变量定义.......................................................................52
服务程序地址............................................................................... 53
I/O 端口........................................................................................ 53
INTERRUPT 控制寄存器.............................................................. 54
EINT4567 的Pending 位........................................................... 54
变量解释...................................................................................54
中断服务程序的实现...............................................................58
定义中断服务程序....................................................................... 58
主程序............................................................................................ 59
中断服务子程序中关键的变量类型........................................... 61
断服务程序运行流程图............................................................... 70
第四章:BOOT流程图................................................. 72
附录:BOOT 程序源代码.................................................. 79
关键词: 原创 Bootloader 源程序 分析 及其 流
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