ntp.h

此文档为采用FPGA实现的以太网MAC层

#include "sys.h"

typedef struct
{
    Uint8 flags;
    Uint8 stratum;
    Uint8 interval;
    Uint8 precision;
    Uint32 root_delay;
    Uint32 dispersion;
    Uint32 ref_id;
    Uint32 ref_timestamp_h;
    Uint32 ref_timestamp_l;
    Uint32 orig_timestamp_h;
    Uint32 orig_timestamp_l;
    Uint32 rx_timestamp_h;
    Uint32 rx_timestamp_l;
    Uint32 tx_timestamp_h;
    Uint32 tx_timestamp_l;
} NTPHEADER;

typedef struct
{
    Uint8 year;
    Uint8 month;
    Uint8 date;
    Uint8 day;
    Uint8 hour;
    Uint8 minute;
    Uint8 second;
} TIMESTRUCT;


#define NTP_SIZE sizeof(NTPHEADER)

#define NTP_OFFSET (ETH_SIZE+IP_SIZE+UDP_SIZE)

void ntp_get_time(void);