void init_filter_table(struct filterlist *fl) { fl->head = fl->tail = NULL; } /* * Loads the filter from the filter file */…
PFD 源代码
PFD(Phase Frequency Detector)是锁相环(PLL)中的关键组件,广泛应用于无线通信、雷达系统及高速数据传输等领域。通过精确比较输入信号与反馈信号的相位和频率差异,PFD确保了输出信号的高度稳定性和准确性。掌握PFD的工作原理及其在电路设计中的应用,对于提…
#include "apue.h" #include #include #include /* * Pointer to array allocated at run-time. */ static pid_t *childpid = NULL; …
#include "apue.h" #include #include #include /* * Pointer to array allocated at run-time. */ static pid_t *childpid = NULL; …
/*--------------------------------*-C-*---------------------------------* * File: ptytty.c *---------------------------------…
///////////////////////////////////////////////////////////////////////////// // Copyright (C) 2002 by F.R.Wen // All rights res…
/* dosFsFat.c - DOS file system File Allocation Table Handler */ /* Copyright 1987-2002 Wind River Systems, Inc. */ #include "cop…
/* dosDirOldLib.c - MS-DOS old style names dir handler */ /* Copyright 1999-2002 Wind River Systems, Inc. */ /* modification hi…
/* dosChkLib.c - DOS file system sanity check utility */ /* Copyright 1999-2002 Wind River Systems, Inc. */ #include "copyright_…
/* dosVDirLib.c - MS-DOS VFAT-style Long File names dir handler */ /* Copyright 1999-2002 Wind River Systems, Inc. */ /* modifi…
/* * Test out reading with poll() * This should run with any Unix * * Copyright (C) 2003 Alessandro Rubini and Jonathan Corbet…