tasksegleddisp.c

应用于MC9S12DG128的ucos系统

/********************************************************************
                               //
//     Author: CaiXinBo      \\\\\\\                            //
//                          ( o   o )                           //
//----------------------oOO----(_)----OOo-----------------------//
                                                              
    FileName:       TaskSegLedDisp.c	
    Created Date:   23/5/2006   9:42
    Modify Date:    
    Purpose:	
*********************************************************************/
#include "includes.h"
#include "main.h"
#include "mc9s12dg128.h"
unsigned char DisplayBuf[4];
const unsigned char LED7Code[]={
	0xC0,		// 0
	0xF9,		// 1
	0xA4,		// 2
	0xB0,		// 3
	0x99,		// 4
	0x92,		// 5
	0x82,		// 6
	0xF8,		// 7
	0x80,		// 8
	0x90,		// 9
	0x88,		// A
	0x83,		// B
	0xC6,		// C
	0xA1,		// D
	0x86,		// E
	0x8E		// F
};
 




void Spi1Initial()
{
  SPI1BR=0x00;  
  SPI1CR1=0x50;
  SPI1CR2=0x00;
  SPI1SR; 
  SPI1DR;                  
 
}

void SpiSendData(unsigned char temp)
{
 
   while(!(SPI1SR&0x20)); 
   SPI1DR = temp;                        /* Send character */
  

} 
void SegLedDisp(unsigned char *buf)
{
   unsigned char i;
	 PTT&=0xF0;//close the bitcode
	 for(i=0;i<4;i++)
	 {
	    PTT|=0x20;
	     
	    SpiSendData(LED7Code[buf[i]]);
	  
	    PTT|=(unsigned char)(1<<i);	   
	    OSTimeDly(1);
	    PTT&=0xF0;//close the bitcode 
	 }
	 

}
void TaskSegLedDisp(TASKDATA* pdata)
{
  unsigned char err,i;
  Spi1Initial();
	DDRT|=0x2f; 
	DDRK=0XFF;
		 
	for(;;)
	{PORTK_BIT1=~PORTK_BIT1; 									     
   SegLedDisp(DisplayBuf);
	OSTimeDlyHMSM(0, 0, 2, 500); 	}
}