www.pudn.com > ShfuCOS.rar > Target.c

#include "..\inc\target.h" 
#include "..\ucos_ii\ucos_ii.h"               /* uC/OS interface */ 
 
//extern OS_EVENT *KeySem; 
OS_EVENT *KeySem; 
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(KeySem, (void *)4); 
			} 
			    break; 
			case 2: 
			{ 
				OSMboxPost(KeySem, (void *)5); 
			} 
			    break; 
			case 4: 
			{ 
				OSMboxPost(KeySem, (void *)6); 
			} 
			    break; 
			case 8: 
			{ 
				OSMboxPost(KeySem, (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 = CACHECFG; //使用8K字节的指令缓存,写缓冲使能，data abort使能 
	rNCACHBE0=((Non_Cache_End>>12)<<16)|(Non_Cache_Start>>12); 
	 
	Port_Init();					//初始化端口 
	 
	//Led_Disp(); 
	 
	ChangePllValue(52,2,1);			//设置CPU频率为60M 
 
	Uart_Init(60000000,115200);			//设置串口0的速率为115200bps 
	 
	Uart_Select(1);					//选择串口1 
	 
	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 
} 
 
 
void ARMInitInterrupts(void) 
{ 
	// Non-vectored,IRQ disable,FIQ disable     
	rINTCON=0x0;	   
 
	// All=IRQ mode 
	rINTMOD=0x0;	   
 
	// All interrupt is masked. 
	rINTMSK=BIT_GLOBAL;	   
 
    rPCONG = rPCONG | 0xff00;		//GPG4、5、6、7设为中断引脚 
    rPUPG = rPUPG & 0x0f;		//GPG4、5、6、7上拉电阻有效 
	rEXTINT=0x0;	//低电平触发 
 
	rPCONG = rPCONG | 0x00c0; 
	rPUPG = rPUPG & 0xf7; 
	rEXTINT |= 0x4000; 
 
	 
	//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_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= 1/16 
	rTCFG1= 0x00000003; 
 
	//set T0 count 
	rTCNTB0= _CLOCK; 
 
	//update T0 
	rTCON= 0x00000002; 
	 
} 
 
 
//start system timer0 
void ARMStartTimer(void) 
{ 
	//autoreload and start 
	rTCON = 0x9; 
} 
 
 
// enable the interrupt. 
void ARMInstallSystemTimer(void) 
{ 
	//Non-vectored,IRQ enable,FIQ disable  
	rINTCON=0x1; 
 
	//Non maksed TIMER0 
	rINTMSK=~( BIT_TIMER0 | BIT_GLOBAL | BIT_EINT4567);	//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); 
	} 
}