www.pudn.com > EBD9200EMAC.rar > main.c

//*---------------------------------------------------------------------------- 
//*         ATMEL Microcontroller Software Support  -  ROUSSET  - 
//*---------------------------------------------------------------------------- 
//* The software is delivered "AS IS" without warranty or condition of any 
//* kind, either express, implied or statutory. This includes without 
//* limitation any warranty or condition with respect to merchantability or 
//* fitness for any particular purpose, or against the infringements of 
//* intellectual property rights of others. 
//*---------------------------------------------------------------------------- 
//* File Name           : main.c 
//* Object              : main application written in C 
//* Creation            : Hi   11/18/2002 
//* 
//*---------------------------------------------------------------------------- 
#include "AT91RM9200.h" 
#include "lib_AT91RM9200.h" 
#include "Emac.h" 
#include  
#include  
 
 
//* Interrupt Handlers 
extern void AT91F_ST_ASM_HANDLER(void); 
//* function in init.c 
extern void AT91F_DBGU_Printk(char *buffer); 
//* functions in Emac.c 
extern int AT91F_EmacEntry(void); 
extern int AT91F_ProcessEmacPacket(AT91PS_IPheader pHeader); 
 
//* Message buffer 
char MsgBuffer[256]; 
 
//* system timer counter 
unsigned int StTick = 0; 
 
 
//*---------------------------------------------------------------------------- 
//* \fn    AT91F_GetTickCount 
//* \brief This function returns the value of the system timer 
//* This function is for demonstration purpose only 
//*---------------------------------------------------------------------------- 
unsigned int AT91F_GetTickCount(void) 
{ 
	return(StTick); 
} 
 
 
//*---------------------------------------------------------------------------- 
//* \fn    AT91F_ST_HANDLER 
//* \brief This function is invoked by main 
//* This function is for demonstration purpose only 
//*---------------------------------------------------------------------------- 
void AT91F_ST_HANDLER(void) 
{ 
volatile int StStatus; 
	// Read the system timer status register 
	StStatus = *(AT91C_ST_SR); 
	StTick++; 
} 
 
 
//*---------------------------------------------------------------------------- 
//* \fn    AT91F_DisplayIpPacket 
//* \brief This function is invoked by main 
//* This function is for demonstration purpose only 
//*---------------------------------------------------------------------------- 
void AT91F_DisplayIpPacket(AT91PS_IPheader pIpHeader) 
{ 
char address[6]; 
 
	AT91F_DBGU_Printk("\n\n\r-I- ================ IP HEADER ======================\n\r"); 
	sprintf(MsgBuffer, "\n\r IP Version        = v.%d",pIpHeader->ip_hl_v & 0x0F); 
	AT91F_DBGU_Printk(MsgBuffer); 
 
	sprintf(MsgBuffer, "\n\r Header Length     = %d",(pIpHeader->ip_hl_v & 0xF0) >> 2); 
	AT91F_DBGU_Printk(MsgBuffer); 
 
	sprintf(MsgBuffer, "\n\r Type of service   = 0x%x",pIpHeader->ip_tos); 
	AT91F_DBGU_Printk(MsgBuffer); 
 
	sprintf(MsgBuffer, "\n\r Total IP Length   = %d",(pIpHeader->ip_len) >> 8); 
	AT91F_DBGU_Printk(MsgBuffer); 
 
	sprintf(MsgBuffer, "\n\r ID                = 0x%X",(pIpHeader->ip_id)); 
	AT91F_DBGU_Printk(MsgBuffer); 
 
	sprintf(MsgBuffer, "\n\r Header Checksum   = 0x%X",(pIpHeader->ip_sum)); 
	AT91F_DBGU_Printk(MsgBuffer); 
 
 
	switch(pIpHeader->ip_p) { 
		case PROT_IP: 
			sprintf(MsgBuffer, "\n\r Protocol          = %s","IP"); 
		break; 
	 
		case PROT_ICMP: 
			sprintf(MsgBuffer, "\n\r Protocol          = %s","ICMP"); 
		break; 
		default: 
			sprintf(MsgBuffer, "\n\r Protocol          = 0x%X",pIpHeader->ip_p); 
		break; 
	} 
	AT91F_DBGU_Printk(MsgBuffer); 
 
	strncpy((char *)address, (const char *)(pIpHeader->ip_src), 4); 
	address[4] = 0; 
 
	sprintf(MsgBuffer, "\n\r IP Src Address    = %d:%d:%d:%d",  
		                                         pIpHeader->ip_src[0],  
	                                             pIpHeader->ip_src[1], 
	                                             pIpHeader->ip_src[2], 
	                                             pIpHeader->ip_src[3] 
	); 
	AT91F_DBGU_Printk(MsgBuffer); 
 
	strncpy((char *)address, (const char *)pIpHeader->ip_dst, 4); 
	address[4] = 0; 
 
	sprintf(MsgBuffer, "\n\r IP Dest Address   = %d:%d:%d:%d", 
		                                         pIpHeader->ip_dst[0],  
	                                             pIpHeader->ip_dst[1], 
	                                             pIpHeader->ip_dst[2], 
	                                             pIpHeader->ip_dst[3] 
	                                             ); 
	AT91F_DBGU_Printk(MsgBuffer); 
} 
 
 
 
//*---------------------------------------------------------------------------- 
//* \fn    main 
//* \brief  
//*  
//*---------------------------------------------------------------------------- 
int main() 
{ 
	AT91S_IPheader IpHeader; 
	int status; 
 
	AT91F_DBGU_Printk("\n\n\r-I- ======================================\n\r"); 
	AT91F_DBGU_Printk("-I- AT91RM9200 EMAC Test\n\r"); 
	AT91F_DBGU_Printk("-I- --------------------------------------\n\r"); 
 
	//* System Timer initialization 
	AT91F_ST_SetPeriodInterval(AT91C_BASE_ST, AT91C_ST_PITS); 
	AT91F_ST_EnableIt(AT91C_BASE_ST, AT91C_ST_PITS); 
	AT91F_AIC_ConfigureIt ( 
							AT91C_BASE_AIC,                        // AIC base address 
							AT91C_ID_SYS,                          // System peripheral ID 
							AT91C_AIC_PRIOR_HIGHEST,               // Max priority 
							AT91C_AIC_SRCTYPE_INT_LEVEL_SENSITIVE,   // Level sensitive 
							AT91F_ST_ASM_HANDLER );						 
	//* Enable ST interrupt 
	AT91F_AIC_EnableIt(AT91C_BASE_AIC, AT91C_ID_SYS); 
 
	//* Initialize AT91RM9200 EMAC 
	status = AT91F_EmacEntry(); 
	if (status) 
	{ 
		sprintf(MsgBuffer, "Error EMAC init: 0x%x", status); 
		AT91F_DBGU_Printk(MsgBuffer); 
		while(1); 
	} 
 
 
	while(1) 
		if (AT91F_ProcessEmacPacket(&IpHeader) == AT91C_IPPACKET) 
			AT91F_DisplayIpPacket(&IpHeader); 
}