LED.rar_LED大屏幕

//*************************************************************** // File Name : LED.c // Author : Steaven // Created : 2008-07-26 // Modified : // Revision : V0.0 //*************************************************************** #include "iom16v.h" #include "DataType.h" #include "app.h" #include "LED.h" //constant definition const INT8U Char_I[] = {0x00,0x00,0x82,0xFE,0x82,0x00,0x00,0x00};/*"I",0*/ const INT8U Char_L[] = {0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00};/*"L",0*/ const INT8U Char_V[] = {0x00,0xF0,0x08,0x04,0x04,0x08,0xF0,0x00};/*"V",0*/ const INT8U Char_E[] = {0x00,0x00,0xFE,0x92,0x92,0x82,0x00,0x00};/*"E",0*/ const INT8U Char_Y[] = {0x00,0xC0,0x20,0x1E,0x20,0xC0,0x00,0x00};/*"Y",0*/ const INT8U Char_O[] = {0x00,0x00,0xFE,0x82,0x82,0xFE,0x00,0x00};/*"O",0*/ const INT8U Char_U[] = {0x00,0x00,0xFC,0x02,0x02,0xFC,0x00,0x00};/*"U",0*/ const INT8U Space[] = {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};/*" ",0*/ //struct definition struct DataBaseIndex { INT8U Code; const INT8U *Ptr; }; //char code database list const struct DataBaseIndex DataBaseIndexList[] = { 'I', Char_I, 'L', Char_L, 'O', Char_O, 'V', Char_V, 'E', Char_E, 'Y', Char_Y, 'U', Char_U, 0 , 0 }; //global variables definition const INT8U *pBufStr; //字符指针 const char String1[] = {"ILOVEYOU"}; //字符串 INT8U DisplayCnt; //显示计数器 INT8U Buffer[8]; //显示缓冲区 INT8U Length_of_DataBase; //字符数据库长度 //*************************************************************** // Function : Display_Init // Input : none // Output : none // Description : Display Initialization //*************************************************************** void Display_Init(void) { INT8U Index = 0; for(Index = 0;Index < 8;Index++) { Buffer[Index] = 0; } pBufStr = String1; DisplayCnt = 0; Length_of_DataBase = Search_DataBase_Length(); } //*************************************************************** // Function : DotTest // Input : none // Output : none // Description : LED Display Test //*************************************************************** void Buffer_IN(INT8U Index) { const INT8U *pdata; INT8U Count = 0; pdata = SearchCharIndex(*pBufStr); if(pdata != (INT8U *)0) { for(Count = 0;Count < 7;Count++) { Buffer[Count] = Buffer[Count+1]; } Buffer[7] = *(pdata + Index); } } //*************************************************************** // Function : SearchCharIndex // Input : CharCode - Char to be displayed // Output : Pointer to the display code of the input char // Description : Get the pointer of the display char code //*************************************************************** const INT8U *SearchCharIndex(INT8U CharCode) { INT8U Index; const struct DataBaseIndex *pDataBasePtr; pDataBasePtr = DataBaseIndexList; for(Index = 0;Index <= Length_of_DataBase;Index++) { if(pDataBasePtr->Code == CharCode) { return(pDataBasePtr->Ptr); } else { pDataBasePtr++ ; } } return(0); } //*************************************************************** // Function : Search_DataBase_Length // Input : none // Output : Length of database list // Description : Search DataBase Length //*************************************************************** INT8U Search_DataBase_Length(void) { INT8U Index = 0; const struct DataBaseIndex *pDataBasePtr; pDataBasePtr = DataBaseIndexList; while(pDataBasePtr->Code != 0) { Index++; pDataBasePtr++; } return(Index); } //*************************************************************** // Function : DotTest // Input : none // Output : none // Description : LED Display Test //*************************************************************** void DotTest(void) { INT8U Select = 0; INT8U Index = 0; INT32U wDelayCnt = 0; for(Select = 0;Select < 8;Select++) { for(Index = 0;Index < 8;Index++) { PORTA = 1 << Index; PORTD = ~(1 << Select); for(wDelayCnt = 0;wDelayCnt < 90000;wDelayCnt++) {;} } } } //=========================END OF FILE=========================//