Here I am attaching the code. I use the original files in ioLibrary_Driver.
Also, I am attaching snapshots for the two scenarios (When server run 1-continously and When 2-Run/Stop/Run)
/*
* W5500-HTML-Again.c
*
* Created: 16/9/2022 1:47:41 AM
* Author : Zedan
*/
/*********************** Include Files ************************/
#include <avr/io.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#define F_CPU 16000000UL
#include <util/delay.h>
#include <avr/interrupt.h>
#include "m1284p/USART.h"
#include "m1284p/SPI.h"
#include "m1284p/I2C_Master.h"
#include "Ethernet\W5500\w5500.h"
//#include "Ethernet\socket.h"
#include "Internet/DNS/dns.h"
#include "Internet/SNTP/sntp.h"
/**************************************************************/
static FILE mystdout = FDEV_SETUP_STREAM(UART_SendChar_io, NULL, _FDEV_SETUP_WRITE); //To be used for redirecting printf to UART
uint32_t SysUpTime=0;
uint8_t MinuteFlag=0;
volatile uint8_t CntOF=0;
uint8_t i=0;
// define default static IP address (when DHCP selected & failed)
wiz_NetInfo netInfo = {
.mac = {0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F}, // Mac address- we will read it from external EEPROM
.ip = {10, 0, 0, 100}, // Default IP address
.sn = {255, 0, 0, 0}, // Default Subnet mask
.dns = {10, 0, 0, 102}, // Default DNS address
.gw = {10, 0, 0, 102}, // Default Gateway address
.dhcp = NETINFO_STATIC
}; //Dynamic IP configuration
uint8_t DNS_2nd[4] = {0, 0, 0, 0}; // Default Secondary DNS server IP.
uint8_t bufSize[] = {2, 2, 2, 2}; // Tx/RX buffer sizes for w5500
#define SOCK_DHCP 0 //Specify the socket used for DHCP communication
#define DATA_BUF_SIZE_DHCP 550
uint8_t gDATABUF_DHCP[DATA_BUF_SIZE_DHCP]="";
//**** DNS Variables
#define SOCK_DNS 6
#define ETH_MAX_BUF_SIZE 2048
unsigned char gDATABUF_DNS[ETH_MAX_BUF_SIZE];
uint8_t Domain_name[] = "ntp.home";;
uint8_t Domain_IP[4] = {0, }; // Translated IP address by DNS Server
int8_t DNSret;
//**** SNTP Variables
#define SOCK_SNTP 7
unsigned char gDATABUF_SNTP[MAX_SNTP_BUF_SIZE];
const uint8_t SNTP_TIMEZONE = 26; // (26) UTC+02:00 - Egypt (look at sntp.c)
datetime time;
void print_network_information(void);
void cs_sel() {W5500_Select();} //to register SPI chip select function
void cs_desel() {W5500_DeSelect();} //to register SPI chip de-select function
uint8_t spi_rb(void) {return SPI_SndByte(0);} //to register SPI reading one byte
void spi_wb(uint8_t b) {SPI_SndByte(b);} //to register SPI sending one byte
int main(void)
{
stdout = &mystdout; //To Enable redirect printf to UART
//****** HW initialization
sei(); //Enable global interrupt bit
DDRD=(1<<PIND7)|(1<<PIND6)|(1<<PIND5)|(1<<PIND4); //PINs output direction (for relays)
DDRC&=~(1<<PINC0); //Input Pin for Internal Temperature Sensor DS18B20
SPI_MasterInit(); //SPI Initialization (Master)
_delay_ms(10000); //To avoid problem of W5500 with UART. Connect UART (physically) after few seconds of power-on
UART_Init(19200); //UART Initialization
I2C_Master_Init(); //Initialize I2C as master
TCCR0A&= ~(1<<WGM00); TCCR0A&=~(1<<WGM01); TCCR0A&=~(1<<WGM02); //Counter0 Normal Mode (overflow) - default value
TCCR0B= (1<<CS00)|(1<<CS02); TCCR0B &=~(1<<CS01); //Counter0 Prescaler 1024
TIMSK0|=(1<<TOIE0); //Counter0 Overflow Interrupt Enable
TCNT0=0; //Preload the counter (see my notes page 73)
printf("\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r");
printf("\r\n=======================================");
//wizphy_reset(); //Reset PHY
//setMR(MR_RST); //Reset W5500
//wizchip_sw_reset(); //Reset W5500, retain basic network info
reg_wizchip_cs_cbfunc(cs_sel, cs_desel); //Register SPI ChipSelect function for W5500
reg_wizchip_spi_cbfunc(spi_rb, spi_wb); //Register SPI Read/Write functions for W5500
wizchip_init(bufSize, bufSize); //Initialize W5500 and set buffer sizes
//setSHAR(netInfo.mac); //Or use wizchip_setnetinfo(&netInfo); to write all network values
wizchip_setnetinfo(&netInfo); //Set network information to W5500
DNS_init(SOCK_DNS, gDATABUF_DNS); // DNS client Initialization
print_network_information();
/* DNS processing */
if ((DNSret = DNS_run(netInfo.dns, Domain_name, Domain_IP))==1) //Trying 1st DNS server
{
printf("\n\r> DNS1 for %s return= %d", Domain_name, DNSret);
printf("\n\r> Translated %s to [%d.%d.%d.%d]\r\n\r\n",Domain_name,Domain_IP[0],Domain_IP[1],Domain_IP[2],Domain_IP[3]);
}
else if ((DNSret = DNS_run(DNS_2nd, Domain_name, Domain_IP))==1) //Trying 2st DNS server
{
printf("\n\r> 1st DNS Failed, trying DNS2");
printf("\n\r> DNS2 for %s return= %d", Domain_name, DNSret);
printf("\n\r> Translated %s to [%d.%d.%d.%d]\r\n\r\n",Domain_name,Domain_IP[0],Domain_IP[1],Domain_IP[2],Domain_IP[3]);
}
else {printf("\n\r> Error resolving %s - DNS Failed !!\n\r\n\r", Domain_name);} //Query to both servers failed
if(DNSret > 0) // sntp server ip resolved, so init SNTP client
{
printf("\n\r> Initializing SNTP from %s", Domain_name);
SNTP_init(SOCK_SNTP, Domain_IP, SNTP_TIMEZONE, gDATABUF_SNTP);
}
else {printf("\n\r> SNTP Error!! could not resolve %s", Domain_name); ;}
while (1)
{
if (CntOF>61) //Means 1sec elapsed
{
CntOF=0; //Reset Counter0 OverFlows counter
SysUpTime++;
DNS_time_handler();
}
if (SysUpTime%60==0) //Means 1 min elapsed
{
if (MinuteFlag==0)
{
//>>>>> code to be executed every 1 min
printf("\n\r\n\r> System is up for %lu minutes\n\r",SysUpTime/60);
printf("\n\r> Updating Time from Network");
i=0;
while (SNTP_run(&time) != 1) //Query SNTP time
{
i++;
if (i>10) break; //Timed-out
}
if (i<10)
{
printf("\n\r> %02d/%02d/%d, %02d:%02d:%02d", time.dd, time.mo, time.yy, time.hh, time.mm, time.ss);
}
else
{
printf("\n\r> Error updating time from network");
}
MinuteFlag=1;
//>>>>> End of code to be executed every 1 min
}
} else MinuteFlag=0;
}
}
/******************* Timer0 overflowinterrupt ********************/
ISR(TIMER0_OVF_vect)
{
CntOF ++; //count overflows
//if(CntOF>61) {CntOF=0; SysUpTime++;} <- This makes DHCP not renewing lease
}
/*****************************************************************/
void print_network_information(void)
{
//uint8_t tmpstr[6] = {0,};
//ctlwizchip(CW_GET_ID,(void*)tmpstr); // Get WIZCHIP name
//printf("\r\n=======================================\r\n");
//printf(" WIZnet chip: %s \r\n", tmpstr);
//printf("=======================================\r\n");
wiz_NetInfo gWIZNETINFO;
wizchip_getnetinfo(&gWIZNETINFO);
if (gWIZNETINFO.dhcp == NETINFO_STATIC) {UART_SendString("\n\rStatic IP address Assigned:\r\n");}
else {UART_SendString("\n\rDHCP IP address Assigned:\r\n");}
printf("MAC Address : %02x:%02x:%02x:%02x:%02x:%02x\n\r",gWIZNETINFO.mac[0],gWIZNETINFO.mac[1],gWIZNETINFO.mac[2],gWIZNETINFO.mac[3],gWIZNETINFO.mac[4],gWIZNETINFO.mac[5]);
printf("IP Address : %d.%d.%d.%d\n\r",gWIZNETINFO.ip[0],gWIZNETINFO.ip[1],gWIZNETINFO.ip[2],gWIZNETINFO.ip[3]);
printf("SN Mask : %d.%d.%d.%d\n\r",gWIZNETINFO.sn[0],gWIZNETINFO.sn[1],gWIZNETINFO.sn[2],gWIZNETINFO.sn[3]);
printf("Gateway : %d.%d.%d.%d\n\r",gWIZNETINFO.gw[0],gWIZNETINFO.gw[1],gWIZNETINFO.gw[2],gWIZNETINFO.gw[3]);
printf("DNS1 Server : %d.%d.%d.%d\n\r",gWIZNETINFO.dns[0],gWIZNETINFO.dns[1],gWIZNETINFO.dns[2],gWIZNETINFO.dns[3]);
printf("DNS2 Server : %d.%d.%d.%d\n\r",DNS_2nd[0],DNS_2nd[1],DNS_2nd[2],DNS_2nd[3]);
}
