usb.rar_control_usb control

/* -------------------------------------------------------------------------- 1. Author: Copyright 2003.9 BY HAE-KWON HWANG 2. Homepage: TeraBank.co.kr. 3. Filename: key4_4.c 4. Version: 1.0 5. Created: 2003/09/30 6 Modified: 2004/10/13 7. License: TeraBank 8. MCU Type: ATmega128L 9. Clock Frequency: 8Mhz 10.Compiler: AvrEdit3.6(avr gcc) ---------------------------------------------------------------------------- */ #include <avr/io.h> #include <avr/interrupt.h> #include <avr/signal.h> #include <avr/pgmspace.h> #include "key4_4.h" unsigned char Key_ScanData[4]={0xf7,0xfb,0xfd,0xfe}; //----------------4*4 key------------------------------------------------------- void Key_Init(void) { Key_ScanValue=0; Key_ScanCount=0; Key_Temp=0; Key_CountOld=0; Key_Enable=0; Key_ScanOld=0; } //------------------------------------------------------------------------------ void Key_Main( void ) { if(Key_ScanCount>3) { Key_ScanCount=0; } Key_Input(); Key_ScanCount++; }//------------------------------------------------------------------------------ void Key_ScanMain(void)//0xf7,0xfb,0xfd,0xfe { //7654 3210 if(0xe0==Key_Temp)//1110 0000 HIGHT { switch(Key_ScanCount) { case 0: Key_ScanValue=0X45; Key_DisPlay(); Buzz_On();//e break; case 1: Key_ScanValue=0X37; Key_DisPlay(); Buzz_On(); ;//7 break; case 2: Key_ScanValue=0X34; Key_DisPlay(); Buzz_On();//4 break; case 3: Key_ScanValue=0X31; Key_DisPlay(); Buzz_On();//1 break; } } //7654 3210 if(0xd0==Key_Temp)//1101 0000 HIGHT { switch(Key_ScanCount) { case 0: Key_ScanValue=0X30; Key_DisPlay(); Buzz_On(); //0 break; case 1: Key_ScanValue=0X38; Key_DisPlay(); Buzz_On(); //8 break; case 2: Key_ScanValue=0X35; Key_DisPlay(); Buzz_On();//5 break; case 3: Key_ScanValue=0X32; Key_DisPlay(); Buzz_On();//2 break; } } //7654 3210 if(0xb0==Key_Temp)//1011 0000 HIGHT { switch(Key_ScanCount) { case 0: Key_ScanValue=0X46; Key_DisPlay(); Buzz_On();//f break; case 1: Key_ScanValue=0X39; Key_DisPlay(); Buzz_On();//9 break; case 2: Key_ScanValue=0X36; Key_DisPlay(); Buzz_On();//6 break; case 3: Key_ScanValue=0X33; Key_DisPlay(); Buzz_On();//3 break; } } //7654 3210 if(0x70==Key_Temp) //0111 0000 HIGHT { switch(Key_ScanCount) { case 0: Key_ScanValue=0X44; Key_DisPlay(); Buzz_On();//d break; case 1: Key_ScanValue=0X43; Key_DisPlay(); Buzz_On(); //c ; break; case 2: Key_ScanValue=0X42; Key_DisPlay(); Buzz_On();//b break; case 3: Key_ScanValue=0X41; Key_DisPlay(); Buzz_On();//a break; } } } //------------------------------------------------------------------------------ void Key_Input(void) { if(Key_Enable==0) { Mem_wKey_Address=(0xf0 | Key_ScanData[Key_ScanCount]); Key_Temp=(0xf0 & inp(Mem_rKey_Address));//상위만 읽음 if(Key_Temp !=0xf0) //KEY가 눌려짐 { if(Key_ScanOld==Key_Temp) //정확성을 위해 2번 읽음 { Key_Enable=1; //키 진입금지 Key_ScanMain(); //키값 읽음 Key_CountOld=Key_ScanCount; // 출력 순번값 저장1110->1101->1011->0111 Key_ScanOld=0xff; Key_Enable=0;//키 진입허용 } if(Key_Enable==0) //정확성을 위해 1번은 무조건 들어감 { Key_ScanOld=Key_Temp;//1번 읽음값 현재읽은값 같게 } } } //상위는 1111로 바꾸고 하위에 KEY_SCAN_VALUE값을 보냄 else { if(Key_CountOld==Key_ScanCount) { Key_Temp=(0xf0 & inp(Mem_rKey_Address)); if(Key_Temp==0xf0) //키가 눌려지지 않음 { Key_Enable=0; } } } } //------------------------------------------------------------------------------