target.c

一个在ADS1.2上的ZLG_TCPIP,操作系统是ucosii276版本

#include "target.h"
#include "ucos_ii.h"               /* uC/OS interface */
extern OS_EVENT *Key_Mbox;
extern OS_EVENT *OK_Mbox;
//extern void TcpIpTmer1Isr(void);
/********************************************************************************************************
 * 外部中断4、5、6、7的中断处理 																		*
 ********************************************************************************************************/
volatile char which_int=0;
void EInt4567Isr(void)
{
    which_int = rEXTINTPND;
    rEXTINTPND = 0xf;		//clear EXTINTPND reg.		
    rI_ISPC |= BIT_EINT4567;	//clear pending_bit

	Delay(500);		//延时若干个100us，消除抖动
	rPCONG &= 0x00ff;
	if( (rPDATG&0xf0) != 0xf0)
	{
	    switch(which_int)
	    {
			case 1:
			{
				OSMboxPost(Key_Mbox, (void *)4);
			}
			    break;
			case 2:
			{
				OSMboxPost(Key_Mbox, (void *)5);
			}
			    break;
			case 4:
			{
				OSMboxPost(OK_Mbox, (void *)6);
			}
			    break;
			case 8:
			{
				OSMboxPost(Key_Mbox, (void *)7);
			}
			    break;
			default :
				break;
	    }
	}

	//while((rPDATG&0xf0) != 0xf0);		//按键没有松开就一直等待
    rPCONG |= 0xff00;		//GPG4、5、6、7设为中断引脚
}

/********************************************************************************************************
 * ARMTargetInit																						*
 *																										*
 * Description: This function initialize an ARM Target board											*
 *																										*
 * Argument   : none    																				*
 ********************************************************************************************************/
void ARMTargetInit(void) 
{
	//配置Cache
   	rSYSCFG = SYSCFG_8KB ;				//使用8K字节的指令缓存
	rNCACHBE0=((unsigned int)(Non_Cache_End>>12)<<16)|(Non_Cache_Start>>12);
	rBWSCON &= ~0xf000;		//8bits for RTL8019 in FS44B0 BOARD
	Port_Init();					//初始化端口
	
	Delay( 200 ) ;		//delay some time
	Led_Set( 0x0f );		//LED全亮
	Delay( 500 ) ;		//delay some time
	Led_Set( 0x00 );		//LED全亮
	
	ChangePllValue( 58, 3, 1 ) ;			//设置CPU频率为66M

	Uart_Init( 0, 115200 );			//设置串口0的速率为115200bps
	Uart_Select(0);					//选择串口0

	ARMInitInterrupts();			//初始化中断,设置中断服务程序
	
	Delay(0);						//调整延时
}


/********************************************************************************************************
 * ARMTargetStart																						*
 *																										*
 * Description: This function start the ARM target running												*
 *																										*
 * Argument   : none																					*
 ********************************************************************************************************/
void ARMTargetStart(void) {
	
	ARMInitTimers();				//配置时钟0相关寄存器
	ARMInstallSystemTimer();		//时钟0中断使能
}

/********************************************************************************************************
 * 中断初始化                   																		*
 ********************************************************************************************************/
void ARMInitInterrupts(void)
{
	// Non-vectored,IRQ disable,FIQ disable    
	rINTCON = 0x0 ;	  

	// All=IRQ mode
	rINTMOD = 0x0 ;	  

	// All interrupt is masked.
	rINTMSK = BIT_GLOBAL;	  

	//set interrupt vector routine
//	pISR_RESET					//reserved
	pISR_UNDEF =  (unsigned) DebugUNDEF;
	pISR_SWI = 	  (unsigned) DebugSWI;
	pISR_PABORT = (unsigned) DebugPABORT;
	pISR_DABORT = (unsigned) DebugDABORT;
//	pISR_RESERVED = (unsigned) BreakPoint;		//not used
//	pISR_IRQ = (unsigned) 0;			//reserved
	pISR_FIQ =    (unsigned) DebugFIQ;
	
	pISR_ADC= 	  (unsigned) BreakPoint;
	pISR_RTC=     (unsigned) BreakPoint;
	pISR_UTXD1=   (unsigned) BreakPoint;
	pISR_UTXD0=   (unsigned) BreakPoint;
	pISR_SIO=     (unsigned) BreakPoint;
	pISR_IIC=     (unsigned) BreakPoint;
	pISR_URXD1=   (unsigned) BreakPoint;
	pISR_URXD0=   (unsigned) BreakPoint;
	pISR_TIMER5=  (unsigned) BreakPoint;
	pISR_TIMER4=  (unsigned) BreakPoint;
	pISR_TIMER3=  (unsigned) BreakPoint;
	pISR_TIMER2=  (unsigned) BreakPoint;
	pISR_TIMER1=  (unsigned) BreakPoint;
	pISR_TIMER0=  (unsigned) BreakPoint;
	pISR_UERR01=  (unsigned) BreakPoint;
	pISR_WDT=     (unsigned) BreakPoint;
	pISR_BDMA1=   (unsigned) BreakPoint;
	pISR_BDMA0=   (unsigned) BreakPoint;
	pISR_ZDMA1=   (unsigned) BreakPoint;
	pISR_ZDMA0=   (unsigned) BreakPoint;
	pISR_TICK=    (unsigned) BreakPoint;
	pISR_EINT4567=(unsigned) OSEINT4567ISR;
	pISR_EINT3=   (unsigned) BreakPoint;
	pISR_EINT2=   (unsigned) BreakPoint;
	pISR_EINT1=   (unsigned) BreakPoint;
	pISR_EINT0=   (unsigned) BreakPoint;

	pISR_TIMER1 = (unsigned)TIMER1ISR;      //kebi
	pISR_TIMER0=  (unsigned) OSTickISR;
	
}

//*******************************************************************************************************
int ARMRequestSystemTimer(void *tick, const unsigned char *str) 
{
	return 1;
}

/********************************************************************************************************
 * Initialize timer that is used OS																		*
 ********************************************************************************************************/
void ARMInitTimers(void)
{
	//dead zone=0, pre0= 150
	rTCFG0= 0x00000095;
	//all interrupt, mux0 mux1= 1/16
	rTCFG1= 0x00000033;

	//set T0 count
	rTCNTB0= _CLOCK;
	//set T1 cout
	rTCNTB1= _CLOCK*50;
	//update T0 T1
	rTCON= 0x00000202;
}

void timer_close(void)
{
	pISR_TIMER1 = NULL;
	rINTMSK = rINTMSK | BIT_TIMER1;
	rTCON = 0x0;
}   
void TcpIpTmer1Isr(void)
{

	static 	INT8U 	 m_10sec=0;
	static 	INT8U 	 p_sec=0;
	static 	INT8U	 p_min=0;
		
	rI_ISPC = BIT_TIMER1;     //清除中断pending位；
	m_10sec++;
	if(m_10sec>=100)
	{
		p_sec++;
		m_10sec=0;
		if(p_sec==60)
		{
			p_min++;
			p_sec=0;
			if(p_min==60)
			{
				p_min=0;
			}
		}
	}
                         // 通知中断控制器中断结束
}
/********************************************************************************************************
 * start system timer0																					*
 ********************************************************************************************************/
void ARMStartTimer(void)
{
	//rTCON = 0x9;		//autoreload and start
	rTCON = 0x909;		//autoreload and start   kebi
}

/********************************************************************************************************
 * enable the interrupt																					*
 ********************************************************************************************************/
void ARMInstallSystemTimer(void)
{
	//Non-vectored,IRQ enable,FIQ disable 
	rINTCON=0x1;

	//Non maksed TIMER0
	rINTMSK=~( BIT_TIMER0 | BIT_GLOBAL );	//Default value=0x7ffffff
	//rINTMSK=~( BIT_TIMER0 | BIT_GLOBAL | BIT_EINT4567);	//Default value=0x7ffffff				
	//rINTMSK=~( BIT_TIMER0 | BIT_TIMER1 | BIT_GLOBAL );	//Default value=0x7ffffff
}

//*******************************************************************************************************
void BreakPoint(void)
{
	Uart_Printf("Enter BreakPoint");

	while(1)
	{
		Led_Set( 0xf ) ;		Delay( 1000 ) ;
		Led_Set( 0x0 ) ;		Delay( 1000 ) ;
	}
}

//*******************************************************************************************************
void DebugUNDEF(void)
{
	Uart_Printf("Enter DebugUNDEF");

	while(1)
	{
		Led_Set( 0xf ) ;		Delay( 1000 ) ;
		Led_Set( 0x0 ) ;		Delay( 1000 ) ;
	}
}

//*******************************************************************************************************
void DebugSWI(void)
{
	Uart_Printf("Enter DebugSWI");

	while(1)
	{
		Led_Set( 0xf ) ;		Delay( 1000 ) ;
		Led_Set( 0x0 ) ;		Delay( 1000 ) ;
	}
}

//*******************************************************************************************************
void DebugPABORT(void)
{
	Uart_Printf("Enter DebugPABORT");

	while(1)
	{
		Led_Set( 0xf ) ;		Delay( 1000 ) ;
		Led_Set( 0x0 ) ;		Delay( 1000 ) ;
	}
}

//*******************************************************************************************************
void DebugDABORT(void)
{
	Uart_Printf("Enter DebugDABORT");

	while(1)
	{
		Led_Set( 0xf ) ;		Delay( 1000 ) ;
		Led_Set( 0x0 ) ;		Delay( 1000 ) ;
	}
}

//*******************************************************************************************************
void DebugFIQ(void)
{
	Uart_Printf("Enter DebugFIQ");

	while(1)
	{
		Led_Set( 0xf ) ;		Delay( 1000 ) ;
		Led_Set( 0x0 ) ;		Delay( 1000 ) ;
	}
}
//*******************************************************************************************************