target.cpp

其于ARM的USB操作,控制芯片为CH375实现操作.以及其他功能.包括AC,串口操作.

#include "target.h"
#include "ucos_ii.h"               /* uC/OS interface */


/********************************************************************************************************
 * 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

	//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_0KB ;				//使用8K字节的指令缓存
   	
   	//初始化WATCHDOG
   	rWTDAT = 0XFFFF;
   	rWTCON = 0XFF39;
   	
   	
	rNCACHBE0=((unsigned int)(Non_Cache_End>>12)<<16)|(Non_Cache_Start>>12);
	
	Port_Init();					//初始化端口
	

	//ChangePllValue( 0x5b, 4, 1 ) ;			//设置CPU频率为66M
	ChangePllValue( 0x50, 6, 1 ) ;			//设置CPU频率为66M

	Uart_Init( 0, 115200 );			//设置串口0的速率为115200bps
	Uart_Select(1);					//选择串口0

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


/********************************************************************************************************
 * 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 = 0x05 ;	  
	//rINTCON = 0;

	// All=IRQ mode
	rINTMOD = 0x0 ;	  

	// All interrupt is masked.
	rINTMSK = BIT_GLOBAL;	  

	rI_ISPC = 0X3FFFFFF;
	rEXTINT |= ( ( 2 << 8 ) );
	


	//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) OSTickISR;
	pISR_EINT4567= (unsigned) OSEINT4567ISR;//外部
	pISR_EINT3= (unsigned) BreakPoint;
	pISR_EINT2= (unsigned) BreakPoint;
	pISR_EINT1= (unsigned) BreakPoint;
	pISR_EINT0= (unsigned) BreakPoint2;

	//pISR_TIMER0= (unsigned) OSTickISR;//操作系统时钟
	
}

/********************************************************************************************************
 * Initialize timer that is used OS																		*
 ********************************************************************************************************/
void ARMInitTimers(void)
{
/*
	//dead zone=0, pre0= 150
	//rTCFG0= 0x00000095;
	rTCFG0 = 65;
	//all interrupt, mux0= 1/16
	//rTCFG1= 0x00000003;
	rTCFG1 = 0X0;

	//set T0 count
	//rTCNTB0= _CLOCK;
	rTCNTB0 = 500;

	//update T0
	rTCON= 0x00000002;
	*/

	rTICINT = 0X1;
	rTCFG0 = ( (32<<16) );
	rTCFG1 = 0;
	rTCNTB5 = 5000;	//5毫秒
	rTCON = ( 2 << 24 );

}

/********************************************************************************************************
 * start system timer0																					*
 ********************************************************************************************************/
void ARMStartTimer(void)
{
	rTICINT = 0X81;
}

/********************************************************************************************************
 * enable the interrupt																					*
 ********************************************************************************************************/
void ARMInstallSystemTimer(void)
{
	//rINTCON = 5;
	rINTMSK=~( BIT_TICK | BIT_GLOBAL );	//Default value=0x7ffffff
}

void BreakPoint1()
{
	while(1)
	{
		Led_Set( 0xf ) ;		Delay( 1000 ) ;
		Led_Set( 0x0 ) ;		Delay( 1000 ) ;
	}

}

void BreakPoint2()
{
	while(1)
	{
		Led_Set( 0xf ) ;		Delay( 1000 ) ;
		Led_Set( 0x0 ) ;		Delay( 1000 ) ;
	}
}


//*******************************************************************************************************
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");
	U32 i;
	i = 1;
	while(i)
	{
		Led_Set( 0xf ) ;		Delay( 1000 ) ;
		Led_Set( 0x0 ) ;		Delay( 1000 ) ;
	}
}

//*******************************************************************************************************
void DebugDABORT(void)
{
	//Uart_Printf("Enter DebugDABORT");
	U32 i;
	i = 1;
	while(i)
	{
		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 ) ;
	}
}
//*******************************************************************************************************