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#include "stm32f10x.h"
#include "stdio.h"
#include "string.h"#include "uip.h"
#include "uip_arp.h"
#include "tapdev.h"
#include "timer.h"
#include "ENC28J60.h"
#include "SPI.h"#define    PRINTF_ON  1#define BUF ((struct uip_eth_hdr *)&uip_buf[0])#ifndef NULL
#define NULL (void *)0
#endif /* NULL */static unsigned char mymac[6] = {0x04,0x02,0x35,0x00,0x00,0x01};void RCC_Configuration(void);
void GPIO_Configuration(void);
void USART_Configuration(void);int main(void)
{int i;uip_ipaddr_t ipaddr;struct timer periodic_timer, arp_timer;RCC_Configuration();GPIO_Configuration();USART_Configuration();SPInet_Init();timer_set(&periodic_timer, CLOCK_SECOND / 2);timer_set(&arp_timer, CLOCK_SECOND * 10);SysTick_Config(72000);         //以太网控制器驱动初始化tapdev_init(mymac);//Uip 协议栈初始化uip_init();

   uip_ipaddr(ipaddr, 192, 168, 1, 15);     //配置Ipuip_sethostaddr(ipaddr);uip_ipaddr(ipaddr, 192, 168, 1, 1);     //配置网关uip_setdraddr(ipaddr);uip_ipaddr(ipaddr, 255, 255, 255, 0);   //配置子网掩码uip_setnetmask(ipaddr);webclient_init();resolv_init();uip_ipaddr(ipaddr, 8,8,8,8); //DNS server ,Google DNS Serverresolv_conf(ipaddr);resolv_query("www.ichanging.org");while(1){uip_len = tapdev_read();                             //从网卡读取数据if(uip_len > 0) {                                                       //如果数据存在则按协议处理if(BUF->type == htons(UIP_ETHTYPE_IP)) {         //如果收到的是IP数据，调用uip_input()处理uip_arp_ipin();                                      uip_input();/* If the above function invocation resulted in data thatshould be sent out on the network, the global variable uip_len is set to a value > 0. */if(uip_len > 0) {uip_arp_out();tapdev_send();}}else if(BUF->type == htons(UIP_ETHTYPE_ARP)){     //如果收到的是ARP数据，调用uip_arp_arpin处理uip_arp_arpin();/* If the above function invocation resulted in data thatshould be sent out on the network, the global variable uip_len is set to a value > 0. */if(uip_len > 0) {tapdev_send();}}}else if(timer_expired(&periodic_timer)){            //查看0.5s是否到了，调用uip_periodic处理TCP超时程序timer_reset(&periodic_timer);for(i = 0; i < UIP_CONNS; i++) {uip_periodic(i);/* If the above function invocation resulted in data thatshould be sent out on the network, the global variable uip_len is set to a value > 0. */if(uip_len > 0) {uip_arp_out();tapdev_send();}}for(i = 0; i < UIP_UDP_CONNS; i++) {uip_udp_periodic(i);                              //处理udp超时程序/* If the above function invocation resulted in data thatshould be sent out on the network, the global variable uip_len is set to a value > 0. */if(uip_len > 0) {uip_arp_out();tapdev_send();}}/* Call the ARP timer function every 10 seconds. */             //10s到了就处理ARPif(timer_expired(&arp_timer)) {timer_reset(&arp_timer);uip_arp_timer();}}}}/*******************************WebClient Set***************************************/void resolv_found(char *name, u16_t *ipaddr)          //DNS 找到对应服务器IP
{//u16_t *ipaddr2;if(ipaddr == NULL) {printf("Host '%s' not found.\n", name);} else {printf("Found name '%s' = %d.%d.%d.%d\n", name,htons(ipaddr[0]) >> 8,htons(ipaddr[0]) & 0xff,htons(ipaddr[1]) >> 8,htons(ipaddr[1]) & 0xff);if(webclient_get("www.ichanging.org", 80, "/index.php"))       {printf("the connection was initiated");}else{printf("the host name could not be found in the cache  or TCP connection could not be created.");}}
}void webclient_closed(void)
{//printf("Webclient: connection closed\n");
}
void webclient_aborted(void)
{//printf("Webclient: connection aborted\n");
}
void webclient_timedout(void)
{//printf("Webclient: connection timed out\n");
}
void webclient_connected(void)
{//printf("Webclient: connected, waiting for data...\n");
}
void webclient_datahandler(char *data, u16_t len)
{//printf("Webclient: got %d bytes of data.\n", len);
}/*******************************Stm32 Set***************************************/void GPIO_Configuration(void)
{GPIO_InitTypeDef GPIO_InitStructure;GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;           GPIO_Init(GPIOA , &GPIO_InitStructure); GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;           GPIO_Init(GPIOA , &GPIO_InitStructure); }void RCC_Configuration(void)
{/* 定义枚举类型变量 HSEStartUpStatus */ErrorStatus HSEStartUpStatus;/* 复位系统时钟设置*/RCC_DeInit();/* 开启HSE*/RCC_HSEConfig(RCC_HSE_ON);/* 等待HSE起振并稳定*/HSEStartUpStatus = RCC_WaitForHSEStartUp();/* 判断HSE起是否振成功，是则进入if()内部 */if(HSEStartUpStatus == SUCCESS){/* 选择HCLK（AHB）时钟源为SYSCLK 1分频 */RCC_HCLKConfig(RCC_SYSCLK_Div1); /* 选择PCLK2时钟源为 HCLK（AHB） 1分频 */RCC_PCLK2Config(RCC_HCLK_Div1); /* 选择PCLK1时钟源为 HCLK（AHB） 2分频 */RCC_PCLK1Config(RCC_HCLK_Div2);/* 设置FLASH延时周期数为2 */FLASH_SetLatency(FLASH_Latency_2);/* 使能FLASH预取缓存 */FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);/* 选择锁相环（PLL）时钟源为HSE 1分频，倍频数为9，则PLL输出频率为 8MHz * 9 = 72MHz */RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);/* 使能PLL */ RCC_PLLCmd(ENABLE);/* 等待PLL输出稳定 */while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);/* 选择SYSCLK时钟源为PLL */RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);/* 等待PLL成为SYSCLK时钟源 */while(RCC_GetSYSCLKSource() != 0x08);} /* 打开APB2总线上的GPIOA时钟*/RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1, ENABLE);}void USART_Configuration(void)
{USART_InitTypeDef USART_InitStructure;USART_ClockInitTypeDef USART_ClockInitStructure;USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;                                                                                                                                                      USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;USART_ClockInit(USART1 , &USART_ClockInitStructure);USART_InitStructure.USART_BaudRate = 9600;USART_InitStructure.USART_WordLength = USART_WordLength_8b;USART_InitStructure.USART_StopBits = USART_StopBits_1;USART_InitStructure.USART_Parity = USART_Parity_No;USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;USART_InitStructure.USART_Mode = USART_Mode_Rx|USART_Mode_Tx;USART_Init(USART1,&USART_InitStructure);USART_Cmd(USART1,ENABLE);
}#if     PRINTF_ONint fputc(int ch,FILE *f)
{USART_SendData(USART1,(u8) ch);while(USART_GetFlagStatus(USART1,USART_FLAG_TC) == RESET);return ch;
}#endif