vead
Full Member level 5
Hello
I Need help, I have connected IR module with P89v51RD2. I have written C code I am just testing that IR sensor is working or not
MCU : P89v51RD2
compiler : Keil
If output of IR sensor is high turn ON LED
If output of IR sensor is low turn OFF LED
Pin 1 is the output connected with P0.0
Pin 2 is ground
Pin 3 is VCC, connect to 5V
I don't understand why LED is not turn ON/OFF also I am not sure that IR sensor is working ?
I Need help, I have connected IR module with P89v51RD2. I have written C code I am just testing that IR sensor is working or not
MCU : P89v51RD2
compiler : Keil
If output of IR sensor is high turn ON LED
If output of IR sensor is low turn OFF LED
Pin 1 is the output connected with P0.0
Pin 2 is ground
Pin 3 is VCC, connect to 5V
Code C - [expand] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 /*-------------------------------------------------------------------------- P89V51Rx2.H Registers definition for Philips P89V51Rx2 Copyright (c) 2007 Keil Elektronik GmbH and Keil Software, Inc. All rights reserved. -------------------------------------------------------------------------- */ /* Byte Addresses */ sfr P0 = 0x80; sfr SP = 0x81; sfr DPL = 0x82; sfr DPH = 0x83; sfr WDTD = 0x85; sfr SPDAT = 0x86; sfr PCON = 0x87; sfr TCON = 0x88; sfr TMOD = 0x89; sfr TL0 = 0x8A; sfr TL1 = 0x8B; sfr TH0 = 0x8C; sfr TH1 = 0x8D; sfr AUXR = 0x8E; sfr P1 = 0x90; sfr SCON = 0x98; sfr SBUF = 0x99; sfr P2 = 0xA0; sfr AUXR1 = 0xA2; sfr IEN0 = 0xA8; sfr SADDR = 0xA9; sfr SPCFG = 0xAA; sfr P3 = 0xB0; sfr FCF = 0xB1; sfr FST = 0xB6; sfr IP0H = 0xB7; sfr IP0 = 0xB8; sfr SADEN = 0xB9; sfr WDTC = 0xC0; sfr T2CON = 0xC8; sfr T2MOD = 0xC9; sfr RCAP2L = 0xCA; sfr RCAP2H = 0xCB; sfr TL2 = 0xCC; sfr TH2 = 0xCD; sfr PSW = 0xD0; sfr SPCTL = 0xD5; sfr CCON = 0xD8; sfr CMOD = 0xD9; sfr CCAPM0 = 0xDA; sfr CCAPM1 = 0xDB; sfr CCAPM2 = 0xDC; sfr CCAPM3 = 0xDD; sfr CCAPM4 = 0xDE; sfr ACC = 0xE0; sfr IEN1 = 0xE8; sfr CL = 0xE9; sfr CCAP0L = 0xEA; sfr CCAP1L = 0xEB; sfr CCAP2L = 0xEC; sfr CCAP3L = 0xED; sfr CCAP4L = 0xEE; sfr B = 0xF0; sfr IP1H = 0xF7; sfr IP1 = 0xF8; sfr CH = 0xF9; sfr CCAP0H = 0xFA; sfr CCAP1H = 0xFB; sfr CCAP2H = 0xFC; sfr CCAP3H = 0xFD; sfr CCAP4H = 0xFE; /* Bit Addresses */ /* P0 */ sbit AO = P0^0; sbit EXTRAM = P0^1; /* TCON */ sbit IT0 = TCON^0; sbit IE0 = TCON^1; sbit IT1 = TCON^2; sbit IE1 = TCON^3; sbit TR0 = TCON^4; sbit TF0 = TCON^5; sbit TR1 = TCON^6; sbit TF1 = TCON^7; /* P1 */ sbit T2EX = P1^1; sbit ECI = P1^2; sbit CEX0 = P1^3; sbit CEX1 = P1^4; sbit CEX2 = P1^5; sbit CEX3 = P1^6; sbit CEX4 = P1^7; /* SCON */ sbit RI = SCON^0; sbit TI = SCON^1; sbit RB8 = SCON^2; sbit TB8 = SCON^3; sbit REN = SCON^4; sbit SM3 = SCON^5; sbit SM1 = SCON^6; sbit SM0 = SCON^7; /* P2 */ sbit DPS = P2^0; sbit GF2 = P2^3; /* IEN0 */ sbit EX0 = IEN0^0; sbit ET0 = IEN0^1; sbit EX1 = IEN0^2; sbit ET1 = IEN0^3; sbit ES0 = IEN0^4; sbit ET2 = IEN0^5; sbit EC = IEN0^6; sbit EA = IEN0^7; /* P3 */ sbit RxD = P3^0; sbit TxD = P3^1; sbit INT0 = P3^2; sbit INT1 = P3^3; sbit T0 = P3^4; sbit T1 = P3^5; sbit WR = P3^6; sbit RD = P3^7; /* IP0 */ sbit PX0 = IP0^0; sbit PT0 = IP0^1; sbit PX1 = IP0^2; sbit PT1 = IP0^3; sbit PS = IP0^4; sbit PT2 = IP0^5; sbit PPC = IP0^6; /* WDTC */ sbit SWDT = WDTC^0; sbit WDT = WDTC^1; sbit WDTS = WDTC^2; sbit WDRE = WDTC^3; sbit WDOUT = WDTC^4; /* T2CON */ sbit RL2 = T2CON^0; sbit T2 = T2CON^1; sbit TR2 = T2CON^2; sbit EXEN2 = T2CON^3; sbit TCLK = T2CON^4; sbit RCLK = T2CON^5; sbit EXF2 = T2CON^6; sbit TF2 = T2CON^7; /* PSW */ sbit P = PSW^0; sbit F1 = PSW^1; sbit OV = PSW^2; sbit RS0 = PSW^3; sbit RS1 = PSW^4; sbit F0 = PSW^5; sbit AC = PSW^6; sbit CY = PSW^7; /* CCON */ sbit CCF0 = CCON^0; sbit CCF1 = CCON^1; sbit CCF2 = CCON^2; sbit CCF3 = CCON^3; sbit CCF4 = CCON^4; sbit CR = CCON^6; sbit CF = CCON^7; sbit LED_pin = P2^0; //Defining LED PIN sbit sensor_pin = P0^0; //Defining output of sensor PIN void Delay(int); //Function prototype declaration void main (void) { sensor_pin = 0; // if sensor is low LED_pin=0; //LED off while(1) //infinite loop { if(sensor_pin == 1 ) //If sensor is high { LED_pin = 1; //LED ON Delay(2000); //Delay LED_pin = 0; //LED OFF } } } void Delay(int k) { int j; int i; for(i=0;i<k;i++) { for(j=0;j<100;j++) { } } }
I don't understand why LED is not turn ON/OFF also I am not sure that IR sensor is working ?