sci_2407.c

DSP的实验测试程序

#include    "f2407_c.h" 


#define LED port1000                           
volatile ioport unsigned int port1000;/*LED*/

extern void delay(unsigned int period);                                   

unsigned int indata;
/****************************** MAIN ROUTINE ***************************/
void main(void)
{ 
   unsigned int t_sci;
   *WDCR  = 0x00E8;
   *SCSR1 = 0x00fd;
   *SCSR2 = (*SCSR2 | 0x000B) & 0x000F;
   WSGR = 0x01c0;
   *MCRA = 0x0003;                     /* group A pins */
   *MCRB = 0xFEDC;                     /* group B pins */
   *MCRC = 0x0000;                     /* group C pins */
   asm("	setc	INTM");
   *IMR = 0x0000;                      /* clear the IMR register */
   *IFR = 0xffff;                      /* clear any pending core interrupts */ 
   *WDKEY =0x5555;
   *WDKEY =0xaaaa; 
   *PCDATDIR=*PCDATDIR|0x2000;		/*PC5 is output*/ 
   LED=0x00ff;  
   	

/***********************************************************************
/*SCI test(LOOPBACK)
/*First,short connect DB9,2and3 pin
/*JP8(1-2),JP9(1-2),JP23(2-3),JP25(2-3),JP15(1-2),JP16(1-2),JP12(1-2),JP13(1-2)
/*if SCI failed , LED3 flash
/***********************************************************************/	
    LED=0xfffb;                        
    t_sci=test_sci();
    if(t_sci==0)LEDflash(0x00fb); 
   
     

    
/********************************************************************
/*if all tests passed , 8 LEDs flash at rate of about 2Hz
/*******************************************************************/     		
	while(1)
	{
		LED=0xffff;
		delay(1000);
		LED=0x0000;
		delay(1000);
	}
}                                       /* end of main() */