STM32 ENC28J60調(diào)試通過的源程序

ID:810398 · 發(fā)表于 2020-8-1 22:38

#include "main.h"
static uint8_t mymac[6] = {0x54,0x55,0x58,0x10,0x00,0x24};
static uint8_t myip[4] = {192,168,0,24};
#define MYWWWPORT 80
#define MYUDPPORT 1200
#define BUFFER_SIZE 550
static volatile ErrorStatus HSEStartUpStatus = SUCCESS;
static vu32 TimingDelay = 0;
static uint8_t buf[BUFFER_SIZE+1];
static char password[]="secret";
/*u16 fill_tcp_data_p(char *buf,u16 pos, u8 *progmem_s)
{
char c;
// fill in tcp data at position pos
//
// with no options the data starts after the checksum + 2 more bytes (urgent ptr)
while ((c = *(progmem_s++))) {
buf[TCP_CHECKSUM_L_P+3+pos]=c;
pos++;
}
return(pos);
}*/
char strncmp ( char * s1, char * s2, char n)
{
if ( !n )//n為無符號整形變量;如果n為0,則返回0
return(0);
while (--n && *s1 && *s1 == *s2)
{
s1++;//S1指針自加1,指向下一個字符
s2++;//S2指針自加1,指向下一個字符
}
return( *s1 - *s2 );//返回比較結(jié)果
}
uint8_t verify_password(char *str)
{
// the first characters of the received string are
// a simple password/cookie:
if (strncmp(password,str,5)==0){
return(1);
}
return(0);
}
// takes a string of the form password/commandNumber and analyse it
// return values: -1 invalid password, otherwise command number
// -2 no command given but password valid
// -3 valid password, no command and no trailing "/"
int8_t analyse_get_url(char *str)
{
uint8_t loop=1;
uint8_t i=0;
while(loop){
if(password[i]){
if(*str==password[i]){
str++;
i++;
}else{
return(-1);
}
}else{
// end of password
loop=0;
}
}
// is is now one char after the password
if (*str == '/'){
str++;
}else{
return(-3);
}
// check the first char, garbage after this is ignored (including a slash)
if (*str < 0x3a && *str > 0x2f){
// is a ASCII number, return it
return(*str-0x30);
}
return(-2);
}
// answer HTTP/1.0 301 Moved Permanently\r\nLocation: password/\r\n\r\n
// to redirect to the url ending in a slash
uint16_t moved_perm(uint8_t *buf)
{
uint16_t plen;
plen=fill_tcp_data_p(buf,0,"HTTP/1.0 301 Moved Permanently\r\nLocation: ");
plen=fill_tcp_data(buf,plen,password);
plen=fill_tcp_data_p(buf,plen,"/\r\nContent-Type: text/html\r\nPragma: no-cache\r\n\r\n");
plen=fill_tcp_data_p(buf,plen,"<h1>301 Moved Permanently</h1>\n");
plen=fill_tcp_data_p(buf,plen,"add a trailing slash to the url\n");
return(plen);
}
// prepare the webpage by writing the data to the tcp send buffer
uint16_t print_webpage(uint8_t *buf,uint8_t on_off)
{
uint16_t plen;
plen=fill_tcp_data_p(buf,0,"HTTP/1.0 200 OK\r\nContent-Type: text/html\r\nPragma: no-cache\r\n\r\n");
plen=fill_tcp_data_p(buf,plen,"<center>Output is: ");
if (on_off){
plen=fill_tcp_data_p(buf,plen," ON");
}else{
plen=fill_tcp_data_p(buf,plen,"OFF");
}
plen=fill_tcp_data_p(buf,plen," <a href=\".\">[refresh status]</a>\n<a href=\".");
if (on_off){
plen=fill_tcp_data_p(buf,plen,"/0\">Switch off</a>");
}else{
plen=fill_tcp_data_p(buf,plen,"/1\">Switch on</a>");
}
plen=fill_tcp_data_p(buf,plen,"</center><hr> version 2.17, TangYC\n");
return(plen);
}
/**
* @brief Main program.
* @param None
* @retval : None
*/
int main(void)
{
uint16_t plen=0;
uint16_t dat_p;
int8_t cmd;
uint8_t payloadlen,cmd_pos;
char str[30];
char cmdval;
RCC_Init();
InterruptConfig();
SysTick_Config();
SPI_Config();
GPIO_Config();
enc28j60Init(mymac);
/* Infinite loop */
//init the ethernet/ip layer:
init_ip_arp_udp_tcp(mymac,myip,MYWWWPORT);
while(1){
// get the next new packet:
plen = enc28j60PacketReceive(BUFFER_SIZE, buf);
/*plen will ne unequal to zero if there is a valid
* packet (without crc error) */
if(plen==0){
continue;
}
// arp is broadcast if unknown but a host may also
// verify the mac address by sending it to
// a unicast address.
if(eth_type_is_arp_and_my_ip(buf,plen)){
make_arp_answer_from_request(buf);
continue;
}
// check if ip packets are for us:
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STM32 ENC28J60調(diào)試通過的源程序