#line 1 "Driver\touch_drv.c" /0   #line 1 "system\reg51.h" /0       sfr P0   = 0x80; sbit P0_0 = P0^0; sbit P0_1 = P0^1; sbit P0_2 = P0^2; sbit P0_3 = P0^3; sbit P0_4 = P0^4; sbit P0_5 = P0^5; sbit P0_6 = P0^6; sbit P0_7 = P0^7;  sfr P1   = 0x90; sbit P1_0 = P1^0; sbit P1_1 = P1^1; sbit P1_2 = P1^2; sbit P1_3 = P1^3; sbit P1_4 = P1^4; sbit P1_5 = P1^5; sbit P1_6 = P1^6; sbit P1_7 = P1^7;  sfr P2   = 0xA0; sbit P2_0 = P2^0; sbit P2_1 = P2^1; sbit P2_2 = P2^2; sbit P2_3 = P2^3; sbit P2_4 = P2^4; sbit P2_5 = P2^5; sbit P2_6 = P2^6; sbit P2_7 = P2^7;  sfr P3   = 0xB0; sbit P3_0 = P3^0; sbit P3_1 = P3^1; sbit P3_2 = P3^2; sbit P3_3 = P3^3; sbit P3_4 = P3^4; sbit P3_5 = P3^5; sbit P3_6 = P3^6; sbit P3_7 = P3^7;  sfr PSW  = 0xD0; sfr ACC  = 0xE0; sfr B    = 0xF0; sfr SP   = 0x81; sfr DPL  = 0x82; sfr DPH  = 0x83; sfr PCON = 0x87; sfr TCON = 0x88; sfr TMOD = 0x89; sfr TL0  = 0x8A; sfr TL1  = 0x8B; sfr TH0  = 0x8C; sfr TH1  = 0x8D; sfr IE   = 0xA8; sfr IP   = 0xB8; sfr SCON = 0x98; sfr SBUF = 0x99;     sbit CY   = 0xD7; sbit AC   = 0xD6; sbit F0   = 0xD5; sbit RS1  = 0xD4; sbit RS0  = 0xD3; sbit OV   = 0xD2; sbit P    = 0xD0;   sbit TF1  = 0x8F; sbit TR1  = 0x8E; sbit TF0  = 0x8D; sbit TR0  = 0x8C; sbit IE1  = 0x8B; sbit IT1  = 0x8A; sbit IE0  = 0x89; sbit IT0  = 0x88;   sbit EA   = 0xAF; sbit ES   = 0xAC; sbit ET1  = 0xAB; sbit EX1  = 0xAA; sbit ET0  = 0xA9; sbit EX0  = 0xA8;   sbit PS   = 0xBC; sbit PT1  = 0xBB; sbit PX1  = 0xBA; sbit PT0  = 0xB9; sbit PX0  = 0xB8;   sbit RD   = 0xB7; sbit WR   = 0xB6; sbit T1   = 0xB5; sbit T0   = 0xB4; sbit INT1 = 0xB3; sbit INT0 = 0xB2; sbit TXD  = 0xB1; sbit RXD  = 0xB0;   sbit SM0  = 0x9F; sbit SM1  = 0x9E; sbit SM2  = 0x9D; sbit REN  = 0x9C; sbit TB8  = 0x9B; sbit RB8  = 0x9A; sbit TI   = 0x99; sbit RI   = 0x98;  #line 11 "Driver\touch_drv.c" /0   #line 1 "system\compiler.h" /0   typedef unsigned char      Byte; typedef unsigned char      Uchar; typedef unsigned int       Uint16; typedef int                Int16; typedef float              Float16; typedef unsigned long int  Uint32; typedef long int           Int32;   #line 12 "Driver\touch_drv.c" /0   #line 1 "system\config.h" /0                                                                                                                                                                 #line 171 "system\config.h" /1           #line 177 "system\config.h" /0             #line 13 "Driver\touch_drv.c" /0   #line 1 "Driver\io_def.h" /0                         #line 14 "Driver\touch_drv.c" /0   #line 1 "Driver\touch_drv.h" /0     bit Touch_PositionXY (void); Byte Touch_PositionA (void); bit Touch_Read (void); bit Touch_Write (Byte PID, Byte bRegister); Byte Touch_scanByteLSB (Byte bBit); void Touch_getMSB (Byte bByte); void Touch_start (void); void Touch_stop (void); bit Touch_Wait (void); void DelayX25us(Byte count);  extern	idata   Byte    TouchPad[5];#line 15 "Driver\touch_drv.c" /0    bit Touch_PositionXY (void) {  Touch_Write (0x52, 0x20); if(!(Touch_Wait())) {Touch_stop();return(0);} if(!(Touch_Read())) {Touch_stop();return(0);} TouchPad[2] = TouchPad[0];   TouchPad[3] = TouchPad[1];   return(1);  }   Byte Touch_PositionA (void) { Touch_Write (0x52, 0x30); if(!(Touch_Wait())) {Touch_stop();return(0);} if(!(Touch_Read())) {Touch_stop();return(0);} return(TouchPad[1]); }   bit Touch_Read (void) { Byte bTemp = 0x00;  Touch_start(); bTemp = Touch_scanByteLSB(4);	  if(	bTemp != 0x05) return(0); bTemp =  Touch_scanByteLSB(8);	  TouchPad[0] =  Touch_scanByteLSB(8); TouchPad[1] =  Touch_scanByteLSB(8); bTemp = Touch_scanByteLSB(4); if(	bTemp != 0x01) return(0); Touch_stop(); return(1); }   bit Touch_Write (Byte PID, Byte bRegister) { Touch_start(); Touch_getMSB(PID); Touch_getMSB(bRegister); Touch_getMSB(0x00); Touch_getMSB(0x01); Touch_stop(); return(1); }   Byte Touch_scanByteLSB (Byte bBit) { Byte bCount = 0x00,i; Byte bByte = 0x00,temp;  for (i=0; i<bBit;)	{ while(!P0_5 && bCount<20) {	  bCount++; } while(P0_5){	  if (P0_3) { temp = 0x01; temp <<= i; bByte |= temp; } } bCount =0;i++; } return(bByte); }   void Touch_getMSB (Byte bByte) { Byte bCount = 0x00,i;  for (i=0; i<8;)	{ while(!P0_5){	  if (bByte & 0x80) P0_3 = 1; else P0_3 = 0; } while(P0_5 && bCount<20){	  bCount++; } bByte <<= 1; bCount =0;	i++; } }   void Touch_start (void) {  P0_3 = 1;  P0_4 = 1;  P0_5 = 1;  P0_6 = 0; }   void Touch_stop (void) {  P0_6 = 1;  P0_3 = 1;  P0_4 = 1;  P0_5 = 1; }   bit Touch_Wait (void) { Byte bCount;  for (bCount=0; P0_5 && bCount < 6; bCount++) {	  DelayX25us(1); } if(bCount > 6) return(0);   else  return(1); }