ctr.c

基于DSPLF2407A的PID算法

#include "LF2407A.h"
extern unsigned int _nClearKey,_ledx[8],_ledbuf[8],_ledkey[11][8];
#define DELAYTIME 64

void CTRInit()
{    
    int i;
    
  /*  CTRGR=0; CTRDelay(1,0); 
    CTRGR=0x80; CTRDelay(1,0); 
    CTRGR=0; CTRDelay(1,0);		// 使能CTR
    CTRLR=0; CTRDelay(1,0); CTRLR=0x40; CTRDelay(1,0); CTRLR=0x0c0;	*/
	LCDCMD(LCDCMDTURNOFF);	
	_nClearKey=CTRCLKEY;
	LBDS=0;
	for ( i=0;i<8;i++ )	_ledx[i]=(i<<4)|8;	// 生成显示列控制字
}
     
void LCDCMD(unsigned char dbCommand)
{
	CTRLCDCMDR=dbCommand; CTRLCDCR=0;
}

void LCDPutString(unsigned int *pData,int x,int y,unsigned int nCharNumber,unsigned color)
{
	int i,j,l;
	unsigned int k,mcolor;
	
	for ( l=0;l<nCharNumber;l++ )
		for ( i=0;i<8;i++ )
		{
			k=1;
			for ( j=0;j<16;j++,k<<=1 )
			{
				if ( color==2 )	mcolor=2;
				else
				{
					mcolor=( pData[l*8+i]&k )?(1):(0);
					if ( color==0 )	mcolor=1-mcolor;
				}
				LCDPutPixel(x+l*8+i,y-j,mcolor);
			}
		}
	//LCDRefreshScreen();
}

char ConvertScanToChar(unsigned char cScanCode)
{
	char cReturn;
	
	cReturn=0;
	switch ( cScanCode )
	{
		case SCANCODE_0: cReturn='0'; break;
		case SCANCODE_1: cReturn='1'; break;
		case SCANCODE_2: cReturn='2'; break;
		case SCANCODE_3: cReturn='3'; break;
		case SCANCODE_4: cReturn='4'; break;
		case SCANCODE_5: cReturn='5'; break;
		case SCANCODE_6: cReturn='6'; break;
		case SCANCODE_7: cReturn='7'; break;
		case SCANCODE_8: cReturn='8'; break;
		case SCANCODE_9: cReturn='9'; break;
		case SCANCODE_Plus: cReturn='+'; break;
		case SCANCODE_Minus: cReturn='-'; break;
	}
	 
	return cReturn;
}

void SetLEDArray(int nNumber)
{
	int i;
	for ( i=0;i<8;i++ )
		_ledbuf[i]=~_ledkey[nNumber][7-i];
}

void RefreshLEDArray()
{
	int i;
	for ( i=0;i<8;i++ )
	{
		CTRGR=_ledx[i];
		CTRLA=_ledbuf[i];
	}
}

void CTRDelay(unsigned int nDelay,unsigned int bShowLEDArray)
{
	int ii,jj,kk=0;
	for ( ii=0;ii<nDelay;ii++ )
	{
		for ( jj=0;jj<DELAYTIME;jj++ )
		{
			kk++;
			if ( bShowLEDArray )
				RefreshLEDArray();
		}
	}
}