?? main.c
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//---------------------------------------------------------------------------
// 主控程序包括物理層初始化, CPU初始化,媒體訪問控制,以太網傳輸等幾部分
// 其中my_ipaddr = 0xC0A8000AL為本設備的IP地址對應不同的網絡要求可對其進行修改
// MAC地址是CP2200出廠前是設置好的一般不需修改
// 此程序為通用TCP/IP協議對不同的MCU應用CP2200進行以太網通訊只需修改CPU初始化部分
// 及定時器配置部分及ADC部分就可以.
//---------------------------------------------------------------------------
#include <string.h>
#include "C8051f040.h"
#include "net.h"
#include "cp220x_reg.h"
#include "timer.h"
#include "analog.h"
#include "arp.h"
#include "tcp.h"
#include "http.h"
#include "ip.h"
MACADDRESS xdata MYMAC;
// Global variables
UINT volatile event_word;
char xdata text[20];
UCHAR idata debug;
UCHAR idata rcve_buf_allocated;
#define LINK_ERROR 0x20
char xdata inbuf1[1500] _at_ 1000;
char xdata outbuf1[1500] _at_ 2500;
// This sets my hardware address to 00:01:02:03:04:05
UCHAR xdata my_hwaddr[6] _at_ 4001;
// Hardware addr to send a broadcast
UCHAR code broadcast_hwaddr[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
// This sets my IP address to 192.168.0.10
ULONG code my_ipaddr = 0xC0A8000AL;
// This sets my subnet mask to 255.255.255.0
ULONG code my_subnet = 0xFFFFFF00L;
ULONG code gateway_ipaddr = 0L;
//--------------------------------------------------------------------------
// Initialize the memory management routines
// Initialize variables declared in main
//--------------------------------------------------------------------------
unsigned int Count1msInc;
unsigned char Count1ms,Count10ms,Count1s;
unsigned char TimeSecond,TimeMinute;
unsigned char PHY_Init(void);
void MAC_Init(void);
UCHAR xdata * rcve_frame(void);
void eth_rcve(UCHAR xdata * inbuf);
void MAC_Write(unsigned char mac_reg_offset, unsigned int mac_reg_data);
void MAC_SetAddress(MACADDRESS* pMAC);
void CP220x_Send( UCHAR xdata * outbuf, UINT len);
/***********************************************************************/
//初始化內存部分
/**********************************************************************/
void init_main(void)
{
// Start the memory pool for incoming and outgoing Ethernet
// frames at 1000, with length = 1500 bytes. Memory below 500
// is used for program variables
// init_mempool((void xdata *)1000, 1500);
memset(text, 0, sizeof(text));
event_word = 0;
rcve_buf_allocated = FALSE;
debug = FALSE;
}
/************************************************************************/
//初始化MCU端口部分 采用端口非復用的方式,將地址線與數據線分開
/***********************************************************************/
void PORT_Init (void)
{
char SFRPAGE_SAVE = SFRPAGE;
unsigned char i;
SFRPAGE = CONFIG_PAGE;
P4MDOUT = 0XFF;
P5MDOUT = 0XFF;
P6MDOUT = 0XFF;
P7MDOUT = 0XFF;
P3MDOUT |= 0X40;
XBR0 = 0x84;
XBR1 = 0x04;
XBR2 = 0x40;
for(i=0;i<200;i++);
SFRPAGE = EMI0_PAGE;
EMI0CF = 0xFB;
EMI0TC = 0xef;
EMI0CN = 0x20;
SFRPAGE = SFRPAGE_SAVE;
}
/***********************************************************************/
//設置定時器0
/**********************************************************************/
void Timer0_Init (void)
{
char SFRPAGE_SAVE = SFRPAGE;
SFRPAGE = TIMER01_PAGE;
CKCON|=0x8;
TMOD|=0x1;
Count10ms=10;
Count1s=0;
TR0 = 0;
TH0 = (-SYSCLK/1000) >> 8;
TL0 = -SYSCLK/1000;
TR0 = 1;
IE|= 0x2;
SFRPAGE = SFRPAGE_SAVE;
}
/**********************************************************************/
//選擇系統時鐘
/**********************************************************************/
void SYSCLK_Init (void)
{
int i;
char SFRPAGE_SAVE = SFRPAGE;
SFRPAGE = CONFIG_PAGE;
OSCXCN = 0x67;
for (i = 0; i < 3000; i++);
while ((OSCXCN & 0x80) == 0);
CLKSEL = 0x01;
SFRPAGE = SFRPAGE_SAVE;
}
/********************************************************************/
//定時器0中斷 用于定時
/********************************************************************/
void Timer0_ISR (void) interrupt 1 //1ms
{
TH0 = (-SYSCLK/1000) >> 8;
TL0 = -SYSCLK/1000;
if (Count1ms) Count1ms--;
Count1msInc++;
if (Count10ms) Count10ms--;
else
{
Count10ms=10; //10ms
if (Count1s) Count1s--;
else
{
Count1s=100; //1s
TimeSecond++;
if (TimeSecond>=60)
{
TimeSecond=0; //1min
TimeMinute++;
if (TimeMinute==60) TimeMinute=0;
}
}
}
}
/*******************************************************************/
//延時程序
/*******************************************************************/
void Delay1ms(unsigned char T)
{
Count1ms=T;
while (Count1ms);
}
/********************************************************************/
//上位機與下位進行交互程序
/********************************************************************/
void LightONOFF(bit b)
{
}
void CP220x_RST_Low(void);
//加延時
void CP220x_RST_High(void);
/*******************************************************************/
//主程序
/*******************************************************************/
void main (void)
{
UINT event_word_copy;
UCHAR xdata * inbuf;
unsigned char error_code;
// unsigned int num_bytes;
WDTCN = 0xDE; // 關看門狗定時器
WDTCN = 0xAD;
SYSCLK_Init (); // 初始化系統時鐘
Timer0_Init();
PORT_Init (); // 初始化端口
init_timer2();
init_main();
init_tcp();
init_http();
EA=1;
init_adc();
init_arp();
CP220x_RST_Low();
Delay1ms(200);
Delay1ms(200);
Delay1ms(200);
Delay1ms(200);
CP220x_RST_High();
INT0EN = 0x03;
INT1EN = 0x00; // 清除中斷標志位
error_code = PHY_Init();
MAC_Init();
ET2 = 1;
RXCN = RXCLEAR;
EA = 1;
IP = 0x01;
SFRPAGE = EMI0_PAGE;
// 下面代碼為設置何種事件中斷發生,以做出相應的處理
while (1)
{
if(CPINFOH & RXVALID)
event_word |= EVENT_ETH_ARRIVED;
event_word_copy = event_word;
EA = 1;
if (event_word_copy & EVENT_ETH_ARRIVED)
{
EA = 0;
event_word &= (~EVENT_ETH_ARRIVED);
EA = 1;
inbuf = rcve_frame();
if (inbuf != NULL)
{
eth_rcve(inbuf);
if (rcve_buf_allocated)
{
rcve_buf_allocated = FALSE;
}
}
}
else if (event_word_copy & EVENT_TCP_RETRANSMIT) //判斷TCP傳輸是否超時
{
event_word &= (~EVENT_TCP_RETRANSMIT);
EA = 1;
tcp_retransmit();
}
else if (event_word_copy & EVENT_TCP_INACTIVITY)//判斷TCP休止時間
{
event_word &= (~EVENT_TCP_INACTIVITY);
EA = 1;
tcp_inactivity();
}
else if (event_word_copy & EVENT_ARP_RETRANSMIT) //判斷ARP傳輸是否超時
{
event_word &= (~EVENT_ARP_RETRANSMIT);
EA = 1;
arp_retransmit();
}
else if (event_word_copy & EVENT_AGE_ARP_CACHE)
{
event_word &= (~EVENT_AGE_ARP_CACHE);
EA = 1;
age_arp_cache();
}
else if (event_word_copy & EVENT_READ_ANALOG) //讀AD輸入的時間
{
event_word &= (~EVENT_READ_ANALOG);
EA = 1;
read_analog_inputs();
}
else if (event_word_copy & EVENT_RS232_ARRIVED)
{
event_word &= (~EVENT_RS232_ARRIVED);
EA = 1;
}
}
}
/**********************************************************************/
//CP2200片選置低
/*********************************************************************/
void CP220x_RST_Low(void)
{
char SFRPAGE_SAVE = SFRPAGE;
SFRPAGE = CONFIG_PAGE;
P4 &= ~0x20;
SFRPAGE=SFRPAGE_SAVE;
}
/***********************************************************************/
//CP2200片選置高
/***********************************************************************/
void CP220x_RST_High(void)
{
char SFRPAGE_SAVE = SFRPAGE;
SFRPAGE = CONFIG_PAGE;
P4 |= 0x20;
SFRPAGE=SFRPAGE_SAVE;
}
/***********************************************************************/
//物理層出始化
/***********************************************************************/
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