chap08_2.c

it is a sample code for s3c2410 board.

// --------------------------------------------------------------------
//
//   Title     :  MAIN
//             :
//   Library   :
//             :
//   Developers:  MICROTIME MDS group
//             :
//   Purpose   :  DEMO Program for Creator Board
//             :
//   Limitation:
//             :
//   Note      :
//             :
// --------------------------------------------------------------------
//   modification history :
// --------------------------------------------------------------------
//   Version| mod. date: |
//   V1.0   | 03/31/2003 | First release
// --------------------------------------------------------------------
//
// Note:
//
//       MICROTIME COMPUTER INC.
//
//

/*************************************************************************
Include files
*************************************************************************/
#include <stdio.h>
#include <inarm.h>
#include "isr.h"
#include "console.h"



/*************************************************************************
MAIN Program 
*************************************************************************/
extern int g_UartRecIRQ;
int main(void)
{
	ClrIntStatus();
	//initial interrupt	for interrupt vector table
    InitialHandler_ISR();
	//enable system interrupt service
    __enable_interrupt();
	//enable register's interrupr service
	EnableInterrupt(BIT_GMASK);
   	// install interrupt source and its service function
    InstallHandler_ISR(U0TINT, SendUARTData);
    InstallHandler_ISR(U0RERR, RecUARTData);
	//clear interrupt pending 
	ClearPending(BIT_U0TINT);
	ClearPending(BIT_U0RERR);
	//enable interrupt service
	EnableInterrupt(BIT_U0TINT);
	EnableInterrupt(BIT_U0RERR);
	//initial uart
	console_init();
	
	//ask Question
	puts("\n\rQ:The S3C4510B interrupt controller has a total of 21 interrupt sources.'y' or 'n'?\n\r");
	//for answer
	while(1) {
		g_UartRecIRQ=NoANS;
		while(1) {
			if(g_UartRecIRQ==NoANS) {
				//nothing
			}
			else  if(g_UartRecIRQ==ANS_Y) {
				puts("\n\rYour answer is right!\n\r");
				goto end;
			}		
			else if(g_UartRecIRQ==ANS_N) {
				puts("\n\rYour answer is wrong!\n\r");
				goto end;
			}
			else {
				puts("\n\rPlease input 'y' or 'n'\n\r");
				break;
			}	
		}
	}

end:	
	while(1);	
    return(0);
}