用AVR实现网络调时

单片机

单片机：ATMEGA16A-PU，WIFI模块：ESP8266，LCD1602液晶实现网络调时，IDE是用CVAVR；后端是在Linux平台上开发的！，后端是从网上复制下来的，稍作些修改！
还有许多不完整的地方！希望大神们给出建议！

main.c

#include "lcd.h"
#include "mcu.h"
#include
#include
#include
#include
/******************±äÁ¿¶¨Òå start*****************************/
typedef struct time{
unsigned char sec;
unsigned char min;
unsigned char hour;
unsigned char buf[8]; //´®¿ÚÊý¾Ý´æ´¢
long int tm;
} Time;
Time t1 = {0, 0, 0, 0, 0}; //³õÊ¼»¯½á¹¹Ìå
/*
* status ±íÊ¾ÏÔÊ¾×´Ì¬
* 1£º×Ö·û´®½ÓÊÜÍê±Ï
* 2£ºWiFi¿ªÊ¼·¢ËÍ
*/
static int status = 0; //×´Ì¬
/******************±äÁ¿¶¨Òå end*****************************/
/******************º¯Êý¶¨Òå start*****************************/
void DisPlay(void){
DisChar(2, 4, t1.hour/10 + 0x30);
DisChar(2, 5, t1.hour%10 + 0x30);
DisChar(2, 6, ':');
DisChar(2, 7, t1.min/10 + 0x30);
DisChar(2, 8, t1.min%10 + 0x30);
DisChar(2, 9, ':');
DisChar(2, 10, t1.sec/10 + 0x30);
DisChar(2, 11, t1.sec%10 + 0x30);
}
void Connect(void){
SREG = 0X00; //ÖÐ¶Ï¹Ø±Õ
printf("AT+RSTn"); //WiFiÖØÖÃ
delay_ms(5000); //ÑÓÊ±5s
printf("AT+CWJAP="CHINA_NET","wulian&CKKJ123"n"); //Á´½Ó¾ÖÓòÍø
delay_ms(10000); //ÑÓÊ±5s
printf("AT+CIPSTART="TCP","192.168.0.102",8086n");//Á´½Ó·þÎñÆ÷
//delay_ms(500);
delay_ms(500); //ÑÓÊ±5s
SREG = 0X80; //ÖÐ¶Ï¿ªÆô
}
/******************º¯Êý¶¨Òå end*****************************/
void main(void){
delay_ms(500); //µÈ´ýµçÔ´ÎÈ¶¨
McuInit();
TIMSK = 0X04; //¿ªÊ¼¼ÆÊ±
LcdInit();
SREG = 0X80; //È«¾ÖÖÐ¶Ï
while(1){
DisString(1, 3, "The time is");
if(status == 0){
DisPlay();
}
if(status == 1){
/* ´¦Àí´®¿Ú´«À´µÄÊýÖµ 101010*/
t1.tm = atol(t1.buf);
t1.hour = (unsigned char)(t1.tm / 10000); //10
t1.min = (unsigned char)(t1.tm % 10000 / 100);
t1.sec = (unsigned char)(t1.tm % 10000 % 100);
status = 0;
}
if(status == 2){
Connect();
status = 0;
}
}
}
//Íâ²¿ÖÐ¶Ï
interrupt [EXT_INT0] void Int0Server(void){
status = 2;
}
//¶¨Ê±Æ÷1ÖÐ¶Ï·þÎñº¯Êý ¶¨Ê±1s
interrupt [TIM1_OVF] void TimeServer(void){
SREG = 0X80;
TCNT1 = 0xe17b;
if(++t1.sec == 60){
t1.sec = 0;
if(++t1.min == 60){
t1.min = 0;
if(++t1.hour == 24){
t1.hour = 0;
}
}
}
}
//´®¿ÚÖÐ¶Ïº¯Êý£¬½ÓÊÜ´®¿ÚÊý¾Ý
interrupt [USART_RXC] void UartServer(void){
unsigned char tmp = UDR; //´®¿Ú´æ´¢Êý¾Ý
static int i = 0, flag = 0;
SREG = 0X00;
if(tmp != 'r' && tmp != 'n' && i<7 && flag == 1){
t1.buf[i] = tmp;
i++;
}else{
/* if(tmp == 'r'){
t1.buf[i] = '\0';
}
if(tmp == 'n'){
i = 0;
status = 1;
LcdInit();
flag = 0;
}*/
if( i == 7 ){
t1.buf[i] = '\0';
i = 0;
status = 1;
LcdInit();
flag = 0;
}
}
if(tmp == ':') flag = 1;
SREG = 0X80;
}

复制代码

lcd.c

#include "lcd.h"
#include
void write_com(unsigned char com){
RESETBIT(PORTA,1);
PORTC = com;
delay_ms(5);
SETBIT(PORTA,0);
delay_ms(5);
RESETBIT(PORTA,0);
}
void write_data(unsigned char Data){
SETBIT(PORTA,1);
PORTC = Data;
delay_ms(5);
SETBIT(PORTA,0);
delay_ms(5);
RESETBIT(PORTA,0);
}
void DisChar(unsigned char Row, unsigned char Col, unsigned char Ch){
switch(Row){
case 1: write_com(0x80 + Col); break; //µÚÒ»ÐÐ
case 2: write_com(0xc0 + Col); break; //µÚ¶þÐÐ
}
write_data(Ch);
delay_ms(2);
}
void DisString(unsigned char Row, unsigned char Col, unsigned char *Str){
unsigned char i = 0;
for( i=0; Str[i]!='\0'; i++, Col++ ){
switch(Row){
case 1: write_com(0x80 + Col); break; //µÚÒ»ÐÐ
case 2: write_com(0xc0 + Col); break; //µÚ¶þÐÐ
}
write_data(Str[i]);
delay_ms(2);
}
}
void LcdInit(void){
RESETBIT(PORTA,0);
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
}

复制代码

lcd.h

#ifndef _LCD_H_
#define _LCD_H_
#include
#define SETBIT(A,B) A|=(1<
#define RESETBIT(A,B) A&=~(1<
void write_com(unsigned char);
void write_data(unsigned char );
void LcdInit(void);
void DisChar(unsigned char , unsigned char , unsigned char );
void DisString(unsigned char , unsigned char , unsigned char *);
#endif

复制代码

mcu.c

#include
void PortInit(void){
DDRA = 0XFF;
PORTA = 0XFF;
DDRC = 0XFF;
PORTC = 0XFF;
DDRD = 0X02;
PORTD = 0XFF;
}
void T0Init(void){
TCCR1B = 0X05; //1024·ÖÆµ
TCNT1 = 0xe17b; //ÑÓÊ±1s
}
void UartInit(void){
UCSRB = 0X00; //½ûÖ¹·¢ËÍÓë½ÓÊÕ
UCSRA = 0X82; //±¶ËÙ
UCSRC = 0X06; //8Î»Êý¾ÝÎ»
UBRRL = 0X67; //²¨ÌØÂÊ9600
UBRRH = 0X00;
UCSRB = 0X98;
}
void Ex0Init(void){
MCUCR |= 0x02; // INT0 ÏÂ½µÑØ´¥·¢
GICR |= 0X40;
}
void McuInit(void){
PortInit();
T0Init();
UartInit();
Ex0Init();
}

复制代码

mcu.h

#ifndef _MCU_INIT_H_
#define _MCU_INIT_H_
void PortInit(void);
void T0Init(void);
void UartInit(void);
void Ex0Init(void);
void McuInit(void);
#endif

复制代码

服务器代码：

/*************************************
文件名： server.c
linux 下socket网络编程简例 - 服务端程序
服务器端口设为 0x8888 （端口和地址可根据实际情况更改，或者使用参数传入）
服务器地址设为 192.168.1.104
作者:kikilizhm#163.com (将#换为@)
*/
#include
#include
#include
#include
#include
#include
#include
int main()
{
int sfp,nfp; /* 定义两个描述符 */
struct sockaddr_in s_add,c_add;
int sin_size;
time_t nowtime;
struct tm *timeinfo;
int hour, min, sec;
char buf[7];
unsigned short portnum=8086; /* 服务端使用端口 */
sfp = socket(AF_INET, SOCK_STREAM, 0);
if(-1 == sfp)
{
printf("socket fail ! rn");
return -1;
}
//printf("socket ok !rn");
/* 填充服务器端口地址信息，以便下面使用此地址和端口监听 */
bzero(&s_add,sizeof(struct sockaddr_in));
s_add.sin_family=AF_INET;
s_add.sin_addr.s_addr=htonl(INADDR_ANY); /* 这里地址使用全0，即所有 */
s_add.sin_port=htons(portnum);
/* 使用bind进行绑定端口 */
if(-1 == bind(sfp,(struct sockaddr *)(&s_add), sizeof(struct sockaddr)))
{
printf("bind fail !rn");
return -1;
}
//printf("bind ok !rn");
/* 开始监听相应的端口 */
if(-1 == listen(sfp,5))
{
printf("listen fail !rn");
return -1;
}
//printf("listen okrn");
while(1)
{
sin_size = sizeof(struct sockaddr_in);
/* accept服务端使用函数，调用时即进入阻塞状态，等待用户进行连接，在没有客户端进行连接时，程序停止在此处，
不会看到后面的打印，当有客户端进行连接时，程序马上执行一次，然后再次循环到此处继续等待。
此处accept的第二个参数用于获取客户端的端口和地址信息。
*/
nfp = accept(sfp, (struct sockaddr *)(&c_add), &sin_size);
if(-1 == nfp)
{
printf("accept fail !rn");
return -1;
}
//printf("accept ok!rnServer start get connect from %#x : %#xrn",ntohl(c_add.sin_addr.s_addr),ntohs(c_add.sin_port));
printf("有人链接了！n");
sleep(8);
time( &nowtime );
timeinfo = localtime( &nowtime );
hour = timeinfo->tm_hour;
min = timeinfo->tm_min;
sec = timeinfo->tm_sec;
sprintf(buf, "%d%d%d", hour, min, sec);
/* 这里使用write向客户端发送信息，也可以尝试使用其他函数实现 */
if(-1 == write(nfp,buf,sizeof(buf)))
{
printf("write fail!rn");
return -1;
}
printf("write ok!rn");
close(nfp);
}
close(sfp);
return 0;
}

复制代码

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