uCOS

开发平台：
C/C++

uhal.c：源码内容
							#include <stdarg.h>
#include <string.h>
#include "uhal.h"
#include "44b.h"
#include "44blib.h"
//#######################SLT#######################
//mclk 66000000
//66000000hz/4= 16500000
///16500000/100= 165000
// 1/165000*SEC==> SEC*165
#define	_TICK	1000				//  1/1000 sec
//#define _TICK	100				//  1/100 sec
//#define _TICK	10				//  1/10 sec
#define _CLOCK	(165*(1000/_TICK))
#define MAX_TBUF	2048
static char tbuf[MAX_TBUF]= {0, };		//for uHALr_printf
//for debugging
void  BreakPoint(void);
void  DebugUNDEF(void);
void  DebugSWI(void);
void  DebugABORT(void);
void  DebugFIQ(void);
//timer interrupt handler routine
extern void TickHandler(void);
//for interrupt enable or disable
extern void ARMDisableInt(void);
extern void ARMEnableInt(void);
//Output through LCD or serial port to print information.
extern int vsprintf(const char *format, ...);
int uHALr_printf(const char *format, ...)
{
	va_list v_list;
	char *ptr;
	int i= 0;
	va_start(v_list, format);		// Initialize variable arguments. 
	vsprintf(tbuf, format, v_list ); 
	va_end(v_list);
	ptr= tbuf;
	while( (*ptr) && i<MAX_TBUF) {
		Uart_SendByte(*ptr);
		ptr++;	i++;
	}//while
	return 1;
}//uHALr_printf
/*** Called by ARMTargetInit() ***/
//disable memory management unit.S3C44B0X无MMU功能，函数为空
void uHALr_ResetMMU(void)
{
}//uHALrResetMMU
void (*pre_isr)(void);
void *(*post_isr)(void);
//Define pre & post-process routines for Interrupt.
void uHALir_DefineIRQ(void *is, void *iq, void *n)
{
	pre_isr= (void (*)(void))is;
	post_isr= (void *(*)(void))iq;
}//uHALir_DefineIRQ
//Initialze interrupts.
void uHALr_InitInterrupts(void)
{
	//set interrupt vector routine
//	pISR_RESET				//reserved
	pISR_UNDEF= (unsigned) DebugUNDEF;
	pISR_SWI= (unsigned) DebugSWI;
	pISR_PABORT= (unsigned) DebugABORT;
	pISR_DABORT= (unsigned) DebugABORT;
	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) TickHandler; //handler setting
	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) UserIRQ;
	pISR_EINT3= (unsigned) BreakPoint;
	pISR_EINT2= (unsigned) BreakPoint;
	pISR_EINT1= (unsigned) BreakPoint;
	pISR_EINT0= (unsigned) BreakPoint;
	
}//uHALr_InitInterrupts
//Initialize timer that is used OS.
void uHALr_InitTimers(void)
{
	
	rTCFG0= 0x00000064;  //dead zone=0, pre0= 100
	rTCFG1= 0x00000001;  //all interrupt, mux0= 1/4
	rTCNTB0= _CLOCK;     //set T0 count
    rTCON= 0x00000002;   //update T0
    rINTPND = 0x00002000; /* T0 interrupt clear */
	
	rTCON= 0x00000009;   //T0,auto reload and start
}//uHALr_InitTimers
/*** Called by ARMTargetStart() ***/
//Request the system timer.
//return value 1:success   0:fail
int uHALr_RequestSystemTimer(void *tick, const unsigned char *str)
{
	return 1;
}//uHALr_RequestSystemTimer
//Start system timer & enable the interrupt.
void uHALr_InstallSystemTimer(void)
{
	rINTMSK=~( BIT_TIMER0 | BIT_GLOBAL);		//Non maksed TIMER0
	
}//uHALr_InstallSystemTimer
/*
* Sys_Interrupt: Interrupt
*/
void SysENInterrupt(unsigned ISPC_BIT)//, void (*handler)(void))
{
	rINTMSK &=~( ISPC_BIT | BIT_GLOBAL);	//Default value=0x7ffffff
}
void SysDISInterrupt(unsigned ISPC_BIT)//, void (*handler)(void))
{
	rINTMSK |= ISPC_BIT;	//Default value=0x7ffffff
}
//////////////////////////////////////////////////////////////////
//routines for debugging
//////////////////////////////////////////////////////////////////
void OutDebug(unsigned int num)
{
	uHALr_printf("rn***STACK***:%drn", num);
}//OutDebug
void  BreakPoint(void)
{
	char m=200;
	uHALr_printf("!!!Enter break point.");	
	while(m) {
		Led_Display(0xf);
		Delay(1000);
		Led_Display(0x0);
		Delay(1000);
		m--;
	}//while
}//BreakPoint
//extern 
int I_COUNT= 0;		//作为控制用
void  DebugUNDEF(void)
{
	uHALr_printf("!!!Enter UNDEFINED. %drn", I_COUNT);	
	BreakPoint();
}
void  DebugSWI(void)
{
	uHALr_printf("!!!Enter SWI. %drn", I_COUNT);	
	BreakPoint();
}
void  DebugABORT(void)
{
	uHALr_printf("!!!Enter ABORT %drn", I_COUNT);	
	BreakPoint();
}
void  DebugFIQ(void)
{
	uHALr_printf("!!!Enter FIQ. %drn", I_COUNT);	
	BreakPoint();
}

						