摘要：
Abstract 本文介绍了使用timestamp时，编译时出现undefined reference to `alt_timestamp等错误的解决方法，应该对初学者有些帮助。编译环境NIOSII 11.0Introduction 本人在做timestamp的练习时，明明加入了#include "sys/alt_timestamp.h" 这个头文件，但是还是编译出问题。如下图：程序代码：#include <stddef.h>#include <stdio.h>#include <sys/alt_timestamp.h>#include 阅读全文
lbyzsf
When nothing seems help,i go and look at a stonecutter hammering away his rock perhaps a hundred times without as much as a crack showing in it .Yet at the hundred and first blowit will split in two ,and i know it was not that did it ---but all that had gone before.