udp.h

AVR以太网开发板中的几个例子。文件中定义了网卡芯片的IP地址,默认值是192.168.0.99。

#ifndef __udp_h__
#define __udp_h__

#define localport_udp_port00 0x0010
#define localport_udp_port01 0x0011
#define localport_udp_port02 0x0012
#define localport_udp_port03 0x0013

#define remoteport_udp_port00 0x0001
#define remoteport_udp_port01 0x0002
#define remoteport_udp_port02 0x0003
#define remoteport_udp_port03 0x0004

extern unsigned int udpbuffer_in_p;
extern unsigned int udpbuffer_in_rp;
extern unsigned char udpbuffer_ex[8192];
extern unsigned char udpbuffer_in[1024];
extern unsigned char udpsendbuffer_ex[2048];
extern unsigned int to_udpport;
extern unsigned int udpdatalen;

unsigned char udp_packhandle(unsigned char *udpbegin,unsigned int udplen);
void udp_init(void);
unsigned int udp_readdata(void);
void udp_buildpack(unsigned char *udpsendbuffer,
				   unsigned int len,
				   unsigned int remoteport,
				   unsigned int localport);
void udp_builddata(unsigned char *udpsendbuffer,unsigned char *udpsenddata,unsigned int len);


#endif