display.h

针对philips的51单片机LPC931的具体应用的例子。实现对uart, spi, i2c等硬件资源的操作。还有针对小内存单片机操作系统的实现。

#ifndef   __DISPLAY_H__
#define   __DISPLAY_H__


void DisplayChar(uchar Line, uchar Position, uchar unChar,bit bFront);
	// define Line for following:
	#define	 LN1				1
	#define	 LN2				2
	#define	 LN3				3
	#define	 LN4				4
	// Posit=position==1~8(LN4) or 1~4( LN1 ~ LN3).    
	// show area of bFront:
	#define BACKUP_BUF			0
	#define FRNT_BUF			1
void DisplayStr2Buff(uchar Line, uchar posit, uchar *Pt, bit bFillSpace, bit bFront);
	#define FILLSPACE			1
	#define NO_FILLSPACE		0
void DisplayDigitalIcon(uchar Line, uchar Position, uchar DigitIcon, bit OnOff, bit bFront);
	#define ON			1
	#define OFF			0
	// DigitIcon define for following char:  '.'; ':'; '%'; '@'
	// note:  '%'== 百分号;  '@'==  摄氏度 符号
	


void TestChar(void);
void ForceBack2FrontProc(void);
void VFDBack2FrontProc(void);
void VFDFlashProcess(bit bForceEn);
	#define FORCE_EN		1
	#define NORMAL_SEN		0
	
void VFDRollProcess(void);

void DisplayStr(uchar Ln, uchar posit, uchar Len, uchar *Str, bit bFillspace);
void DisplayDigit(uchar Ln, int intData, uchar Dot, bit bFront);

void FreshAllBuff(bit All_OnOff);
	#define ALL_ON			1
	#define ALL_OFF			0
void ClrAllFlag(void);

uchar CheckSum(uchar *Pt, uchar cnt);




#endif