led_c.c

嵌入式系统下开发应用程序

/****************************************/
/**   Jupiter PIO(LED) Test Program    **/
/****************************************/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>

#include "JupiterReg.h"

byte *regb=(byte *) 0x01F00000;
#define  regw *(word*)&regb
#define  regl *(int *)&regb


int delay(int n)
{ int i;
 for(i=0;i<n;i++) ;
 return i;
}

/*
extern void start(); 
#pragma interrupt
void NMI(){}
#pragma interrupt
void AUTO_INT(){}


#define NOTUSEDISR     (fp)(0) 
typedef void (*fp)(void);
const fp HardwareVector[] __attribute__((section (".vects")))= {
	    start    , 
	    NMI      , 
	    AUTO_INT  ,
	    NOTUSEDISR,
	    NOTUSEDISR,
}; */

void ledtest()
{
	PIOLDAT1 = 0x02000000;  // led on
	delay(100000000);
	PIOLDAT1 = 0x00000000;  // led off
	delay(100000000);
}

char * msg = "LED toggle! q--  exit,1-- led on, 2-- led off \n";

int main()
{
	
	char buf[128];
	int i;

	printf(msg);

	PIOMOD1 = 0x00000000;
	PIOLDAT1 = 0x00000000;  //led off
	printf("Hello uClinux World!\n");

	do {

		printf("mysh> ");
		scanf("%s", buf);
		printf(buf);
		if ( !strcmp(buf, "q") )
			break;
		if ( !strcmp(buf, "1") )
			PIOLDAT1 = 0x02000000;  // led on
		if ( !strcmp(buf, "2") )
			PIOLDAT1 = 0x00000000;  // led off

		for(i=0; i<128; i++)
			buf[i] = '\0';
		
	} while (1);
		

	return 0;
}