variable.c

利用51单片机对RTL8109进行控制

#include "struct.h"

unsigned int frameindex=0;	//IP包的序列号
unsigned int comrxdread=0;      //串口接收读指针
unsigned int comtxdread=0;      //串口发送读指针
unsigned int comrxdwrite=0;     //串口接收写指针
unsigned int comtxdwrite=0;     //串口发送写指针

unsigned int comcommandend=0;

unsigned char xdata comrxdbuf[com_rxd_buffer_size];  	//串口的接收缓冲区
unsigned char xdata comtxdbuf[com_txd_buffer_size];  	//串口的发送缓冲区

xdata union netcard retransmit_buffer[rt_size+1];
//xdata union netcard retransmit_tcpbuffer[rt_size];
xdata struct class_retransmit_packet retransmitpacket[rt_size+1];
xdata struct class_command_buffer rt_command_buffer[rt_cmd_length];

xdata unsigned char c_readcommand=0;
xdata unsigned char c_writecommand=0;
//xdata unsigned long l_bakpingipaddress;

xdata unsigned int c_rxcount=0;  //测试收包数
xdata unsigned int c_txcount=0;

xdata unsigned char command_buffer[command_buffer_size];
unsigned int  command_length;

unsigned char msec=0;//10毫秒钟
unsigned char sec=0;//秒钟

union ethernet_address_type my_ethernet_address;  //本机的以太网地址
union ethernet_address_type ping_ethernet_address;//用来ping的以太网地址
union ethernet_address_type dvr_ethernet_address;//用来dvr的以太网地址
union ip_address_type my_ip_address; //本机的ip地址
union ip_address_type ping_ip_address;//用于ping命令
union ip_address_type dvr_ip_address;//用于dvr命令

xdata union ethernet_address_type gateway_ethernet_address; //网关的以太网地址
xdata union ip_address_type gateway_ip_address;//网关的ip地址
//xdata union ip_address_type temp_ip_address; //临时变量
xdata union ip_address_type mask_ip_address;//子网掩码


xdata union netcard rxdnet;
xdata union netcard txdnet;
xdata struct socket_type tcp1024;

xdata struct class_dvr_buffer dvr_buffer[dvr_length];

xdata struct class_protocol_header protocol_header;

xdata unsigned char retranslate=0;
xdata unsigned char ASCII[3];
//unsigned char linkcount=0;
xdata unsigned char ping_ip_address_ttl=0;
xdata unsigned char gateway_ip_address_ttl=0;
//unsigned char netrxdwrite=0;

xdata unsigned char c_camnumber;

xdata unsigned int socketnumber=2000;//对方使用端口号
xdata unsigned int local_use_port;//本地使用端口号
xdata unsigned int udp_dstport;	//2004年7月15日为定制修改

xdata unsigned char tcp_count=0;//用于telnet连接的次数

xdata union w crctemp;

xdata unsigned char c_type=0;//0:,1:host,2:keyboard

xdata unsigned char tcpdata_buf[tcpdata_length];

xdata unsigned char c_net_delay=0;
xdata unsigned char c_DvrReadBuffer;
xdata unsigned char c_DvrWriteBuffer;
xdata unsigned char c_RstTcpCount;
xdata unsigned char c_DvrRunTime;

bit comtxdbufempty=0;   	//串口的发送缓冲区空的标志
bit bDataFlag=0;
bit bCommandFlag=0;
bit double_second=0;
bit overtime=0;
bit tcpconnect=0;  //是否已经建立tcp连接的标志
bit b_debug=0;      //调试用
bit b_cb_full=0;  //命令缓冲区满标志
bit b_reset=0;   //复位标志
bit b_dvrcommand;
bit b_RunDvrCommand;
bit b_100ms;