/************************************************************************************ FILENAME: SEED-DEC2407.h ****************…
volatile 源代码
volatile是一个特征修饰符(typespecifier).volatile的作用是作为指令关键字,确保本条指令不会因编译器的优化而省略,且要求每次直接读值。
/************************************************************************************ FILENAME: SEED-DEC2407.h ****************…
/************************************************************************************ FILENAME: SEED-DEC2407.h ****************…
/************************************************************************************ FILENAME: SEED-DEC2407.h ****************…
/* WOTCH DOG register */ #define WTCON (*(volatile unsigned long *)0x53000000) /* SDRAM regisers */ #define MEM_CTL_BASE 0x…
#define GPBCON (*(volatile unsigned long *)0x56000010) #define GPBDAT (*(volatile unsigned long *)0x56000014) int main(…
#define GPBCON (*(volatile unsigned long *)0x56000010) #define GPBDAT (*(volatile unsigned long *)0x56000014) int main(…
/* * Copyright 2005 by Spectrum Digital Incorporated. * All rights reserved. Property of Spectrum Digital Incorporated. * …
/* * Copyright 2005 by Spectrum Digital Incorporated. * All rights reserved. Property of Spectrum Digital Incorporated. * …
/* * Copyright 2005 by Spectrum Digital Incorporated. * All rights reserved. Property of Spectrum Digital Incorporated. * …