CCS PCH C Compiler, Version 5.048, 26145 28-Mar-23 12:40 Filename: C:\Users\soac-gj2\Desktop\i2c multi master\proteus\PIC18F2525_1\Debug.lst ROM used: 658 bytes (1%) Largest free fragment is 48494 RAM used: 9 (0%) at main() level 13 (0%) worst case Stack used: 2 locations Stack size: 31 * 0000: GOTO 01CA .................... #import(file="main.o") .................... .................... #include .................... #include <18F2525.h> .................... //////////// Standard Header file for the PIC18F2525 device //////////////// .................... /////////////////////////////////////////////////////////////////////////// .................... //// (C) Copyright 1996, 2014 Custom Computer Services //// .................... //// This source code may only be used by licensed users of the CCS C //// .................... //// compiler. This source code may only be distributed to other //// .................... //// licensed users of the CCS C compiler. No other use, reproduction //// .................... //// or distribution is permitted without written permission. //// .................... //// Derivative programs created using this software in object code //// .................... //// form are not restricted in any way. //// .................... /////////////////////////////////////////////////////////////////////////// .................... #device PIC18F2525 0004: DATA 63,6C 0006: DATA 65,61 0008: DATA 72,69 000A: DATA 6E,67 000C: DATA 20,6D 000E: DATA 65,6D 0010: DATA 6F,72 0012: DATA 79,0A 0014: DATA 0D,00 0016: DATA 77,72 0018: DATA 69,74 001A: DATA 74,65 001C: DATA 6E,20 001E: DATA 25,58 0020: DATA 20,74 0022: DATA 6F,20 0024: DATA 25,58 0026: DATA 0A,0D 0028: DATA 00,00 * 0032: TBLRD*+ 0034: MOVF FF5,F 0036: BZ 0052 0038: MOVFF FF6,08 003C: MOVFF FF7,09 0040: MOVF FF5,W 0042: BTFSS F9E.4 0044: BRA 0042 0046: MOVWF FAD 0048: MOVFF 08,FF6 004C: MOVFF 09,FF7 0050: BRA 0032 0052: GOTO 0208 (RETURN) * 0168: TBLRD*+ 016A: MOVFF FF6,0A 016E: MOVFF FF7,0B 0172: MOVF FF5,W 0174: BTFSS F9E.4 0176: BRA 0174 0178: MOVWF FAD 017A: MOVFF 0A,FF6 017E: MOVFF 0B,FF7 0182: DECFSZ 09,F 0184: BRA 0168 0186: RETURN 0 0188: BTFSC 0A.7 018A: BRA 01AC 018C: MOVLW 0F 018E: MOVWF 00 0190: SWAPF 09,W 0192: ANDWF 00,F 0194: MOVLW 0A 0196: SUBWF 00,W 0198: BC 01A0 019A: MOVLW 30 019C: ADDWF 00,F 019E: BRA 01A4 01A0: MOVF 0A,W 01A2: ADDWF 00,F 01A4: MOVF 00,W 01A6: BTFSS F9E.4 01A8: BRA 01A6 01AA: MOVWF FAD 01AC: MOVLW 0F 01AE: ANDWF 09,F 01B0: MOVLW 0A 01B2: SUBWF 09,W 01B4: BC 01BA 01B6: MOVLW 30 01B8: BRA 01BE 01BA: BCF 0A.7 01BC: MOVF 0A,W 01BE: ADDWF 09,F 01C0: MOVF 09,W 01C2: BTFSS F9E.4 01C4: BRA 01C2 01C6: MOVWF FAD 01C8: RETURN 0 .................... .................... #list .................... .................... #device ADC=10 .................... .................... #FUSES FCMEN //Fail-safe clock monitor enabled .................... #FUSES IESO //Internal External Switch Over mode enabled .................... #FUSES NOPUT //No Power Up Timer .................... #FUSES BROWNOUT //Reset when brownout detected .................... #FUSES BORV27 //Brownout reset at 2.7V .................... #FUSES NOPBADEN //PORTB pins are configured as digital I/O on RESET .................... #FUSES LPT1OSC //Timer1 configured for low-power operation .................... #FUSES NOMCLR //Master Clear pin used for I/O .................... #FUSES STVREN //Stack full/underflow will cause reset .................... #FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O .................... #FUSES NOXINST //Extended set extension and Indexed Addressing mode disabled (Legacy mode) .................... #FUSES NOPROTECT //Code not protected from reading .................... #FUSES NOCPB //No Boot Block code protection .................... #FUSES NOCPD //No EE protection .................... #FUSES NOWRT //Program memory not write protected .................... #FUSES NOWRTC //Configuration registers not write protected .................... #FUSES NOWRTB //Boot block not write protected .................... #FUSES NOWRTD //Data EEPROM not write protected .................... #FUSES NOEBTR //Memory not protected from table reads .................... #FUSES NOEBTRB //Boot block not protected from table reads .................... .................... #use delay(internal=8MHz) * 0142: CLRF FEA 0144: MOVLW 09 0146: MOVWF FE9 0148: MOVF FEF,W 014A: BZ 0166 014C: MOVLW 02 014E: MOVWF 01 0150: CLRF 00 0152: DECFSZ 00,F 0154: BRA 0152 0156: DECFSZ 01,F 0158: BRA 0150 015A: MOVLW 97 015C: MOVWF 00 015E: DECFSZ 00,F 0160: BRA 015E 0162: DECFSZ FEF,F 0164: BRA 014C 0166: RETURN 0 .................... #use rs232(baud=9600,parity=N,xmit=PIN_C6,rcv=PIN_C7,bits=8,stream=PORT1,errors) .................... #use i2c(Master,Fast,sda=PIN_C4,scl=PIN_C3) .................... .................... #define LED PIN_A7 .................... #define DELAY 500 .................... .................... .................... .................... .................... #include <2402.C> .................... /////////////////////////////////////////////////////////////////////////// .................... //// Library for a MicroChip 24LC02B configured for a x8 org //// .................... //// //// .................... //// init_ext_eeprom(); Call before the other functions are used //// .................... //// //// .................... //// write_ext_eeprom(a, d); Write the byte d to the address a //// .................... //// //// .................... //// d = read_ext_eeprom(a); Read the byte d from the address a //// .................... //// //// .................... //// b = ext_eeprom_ready(); Returns TRUE if the eeprom is ready //// .................... //// to receive opcodes //// .................... //// //// .................... //// The main program may define EEPROM_SDA //// .................... //// and EEPROM_SCL to override the defaults below. //// .................... //// //// .................... //// Pin Layout //// .................... //// ----------------------------------------------------------- //// .................... //// | | //// .................... //// | 1: NC Not Connected | 8: VCC +5V | //// .................... //// | | | //// .................... //// | 2: NC Not Connected | 7: WP GND | //// .................... //// | | | //// .................... //// | 3: NC Not Connected | 6: SCL EEPROM_SCL and Pull-Up | //// .................... //// | | | //// .................... //// | 4: VSS GND | 5: SDA EEPROM_SDA and Pull-Up | //// .................... //// ----------------------------------------------------------- //// .................... //// //// .................... /////////////////////////////////////////////////////////////////////////// .................... //// (C) Copyright 1996, 2003 Custom Computer Services //// .................... //// This source code may only be used by licensed users of the CCS C //// .................... //// compiler. This source code may only be distributed to other //// .................... //// licensed users of the CCS C compiler. No other use, reproduction //// .................... //// or distribution is permitted without written permission. //// .................... //// Derivative programs created using this software in object code //// .................... //// form are not restricted in any way. //// .................... /////////////////////////////////////////////////////////////////////////// .................... #ifndef EEPROM_SDA .................... .................... #define EEPROM_SDA PIN_C4 .................... #define EEPROM_SCL PIN_C3 .................... .................... #endif .................... .................... .................... #use i2c(master, sda=EEPROM_SDA, scl=EEPROM_SCL) * 0056: MOVLW 08 0058: MOVWF 01 005A: BRA 005C 005C: BCF F8B.3 005E: BCF F94.3 0060: BRA 0062 0062: NOP 0064: RLCF 0C,F 0066: BCF F8B.4 0068: BTFSC FD8.0 006A: BSF F94.4 006C: BTFSS FD8.0 006E: BCF F94.4 0070: BSF F94.3 0072: BTFSS F82.3 0074: BRA 0072 0076: DECFSZ 01,F 0078: BRA 005A 007A: BRA 007C 007C: BCF F8B.3 007E: BCF F94.3 0080: NOP 0082: BSF F94.4 0084: BRA 0086 0086: NOP 0088: BRA 008A 008A: NOP 008C: BSF F94.3 008E: BTFSS F82.3 0090: BRA 008E 0092: CLRF 01 0094: BRA 0096 0096: NOP 0098: BTFSC F82.4 009A: BSF 01.0 009C: BCF F8B.3 009E: BCF F94.3 00A0: BCF F8B.4 00A2: BCF F94.4 00A4: RETURN 0 .................... .................... #define EEPROM_ADDRESS BYTE .................... #define EEPROM_SIZE 256 .................... .................... void init_ext_eeprom() { .................... output_float(EEPROM_SCL); * 002A: BSF F94.3 .................... output_float(EEPROM_SDA); 002C: BSF F94.4 002E: GOTO 01FA (RETURN) .................... } .................... .................... BOOLEAN ext_eeprom_ready() { .................... int1 ack; .................... i2c_start(); // If the write command is acknowledged, * 00A6: BSF F94.4 00A8: BRA 00AA 00AA: BSF F94.3 00AC: BRA 00AE 00AE: NOP 00B0: BCF F8B.4 00B2: BCF F94.4 00B4: BRA 00B6 00B6: BCF F8B.3 00B8: BCF F94.3 .................... ack = i2c_write(0xa0); // then the device is ready. 00BA: MOVLW A0 00BC: MOVWF 0C 00BE: RCALL 0056 00C0: MOVF 01,W 00C2: BCF 0B.0 00C4: BTFSC 01.0 00C6: BSF 0B.0 .................... i2c_stop(); 00C8: BCF F94.4 00CA: NOP 00CC: BSF F94.3 00CE: BTFSS F82.3 00D0: BRA 00CE 00D2: BRA 00D4 00D4: BRA 00D6 00D6: NOP 00D8: BSF F94.4 00DA: BRA 00DC .................... return !ack; 00DC: MOVLW 00 00DE: BTFSS 0B.0 00E0: MOVLW 01 00E2: MOVWF 01 00E4: GOTO 00EA (RETURN) .................... } .................... .................... void write_ext_eeprom(BYTE address, BYTE data) { .................... while(!ext_eeprom_ready()); 00E8: BRA 00A6 00EA: MOVF 01,F 00EC: BZ 00E8 .................... i2c_start(); 00EE: BSF F94.4 00F0: BRA 00F2 00F2: BSF F94.3 00F4: BRA 00F6 00F6: NOP 00F8: BCF F8B.4 00FA: BCF F94.4 00FC: BRA 00FE 00FE: BCF F8B.3 0100: BCF F94.3 .................... i2c_write(0xa0); 0102: MOVLW A0 0104: MOVWF 0C 0106: RCALL 0056 .................... i2c_write(address); 0108: MOVFF 09,0C 010C: RCALL 0056 .................... i2c_write(data); 010E: MOVFF 0A,0C 0112: RCALL 0056 .................... i2c_stop(); 0114: BCF F94.4 0116: NOP 0118: BSF F94.3 011A: BTFSS F82.3 011C: BRA 011A 011E: BRA 0120 0120: BRA 0122 0122: NOP 0124: BSF F94.4 0126: BRA 0128 0128: RETURN 0 .................... } .................... .................... .................... BYTE read_ext_eeprom(BYTE address) { .................... BYTE data; .................... .................... while(!ext_eeprom_ready()); .................... i2c_start(); .................... i2c_write(0xa0); .................... i2c_write(address); .................... i2c_start(); .................... i2c_write(0xa1); .................... data=i2c_read(0); .................... i2c_stop(); .................... return(data); .................... } .................... .................... .................... void clear_mem (void); .................... .................... unsigned int q=0; .................... void main() * 01CA: CLRF FF8 01CC: BCF FD0.7 01CE: MOVLW 70 01D0: MOVWF FD3 01D2: CLRF F9B 01D4: MOVF FD3,W 01D6: CLRF 04 01D8: BCF FB8.3 01DA: MOVLW 0C 01DC: MOVWF FAF 01DE: MOVLW A2 01E0: MOVWF FAC 01E2: MOVLW 90 01E4: MOVWF FAB 01E6: CLRF 05 01E8: CLRF 07 01EA: CLRF 06 01EC: MOVF FC1,W 01EE: ANDLW C0 01F0: IORLW 0F 01F2: MOVWF FC1 01F4: MOVLW 07 01F6: MOVWF FB4 .................... { .................... init_ext_eeprom(); 01F8: BRA 002A .................... output_low(pin_c0); // ensure the other chip is waiting 01FA: BCF F94.0 01FC: BCF F8B.0 .................... printf("clearing memory\n\r"); 01FE: MOVLW 04 0200: MOVWF FF6 0202: MOVLW 00 0204: MOVWF FF7 0206: BRA 0032 .................... clear_mem(); 0208: BRA 012A .................... q=0; 020A: CLRF 05 .................... output_high(Pin_C0); // let chip 2 know memory cleared 020C: BCF F94.0 020E: BSF F8B.0 .................... .................... while(TRUE) .................... { .................... .................... //Example blinking LED program .................... output_low(LED); 0210: BCF F92.7 0212: BCF F89.7 .................... delay_ms(DELAY); 0214: MOVLW 02 0216: MOVWF 08 0218: MOVLW FA 021A: MOVWF 09 021C: RCALL 0142 021E: DECFSZ 08,F 0220: BRA 0218 .................... output_high(LED); 0222: BCF F92.7 0224: BSF F89.7 .................... delay_ms(DELAY); 0226: MOVLW 02 0228: MOVWF 08 022A: MOVLW FA 022C: MOVWF 09 022E: RCALL 0142 0230: DECFSZ 08,F 0232: BRA 022A .................... .................... //TODO: User Code .................... .................... write_ext_eeprom(q,255-q); 0234: MOVLW FF 0236: BSF FD8.0 0238: SUBFWB 05,W 023A: MOVWF 08 023C: MOVFF 05,09 0240: MOVWF 0A 0242: RCALL 00E8 .................... printf("written %X to %X\n\r", 255-q, q); 0244: MOVLW FF 0246: BSF FD8.0 0248: SUBFWB 05,W 024A: MOVWF 08 024C: MOVLW 16 024E: MOVWF FF6 0250: MOVLW 00 0252: MOVWF FF7 0254: MOVLW 08 0256: MOVWF 09 0258: RCALL 0168 025A: MOVFF 08,09 025E: MOVLW 37 0260: MOVWF 0A 0262: RCALL 0188 0264: MOVLW 20 0266: MOVWF FF6 0268: MOVLW 00 026A: MOVWF FF7 026C: MOVLW 04 026E: MOVWF 09 0270: RCALL 0168 0272: MOVFF 05,09 0276: MOVLW 37 0278: MOVWF 0A 027A: RCALL 0188 027C: MOVLW 0A 027E: BTFSS F9E.4 0280: BRA 027E 0282: MOVWF FAD 0284: MOVLW 0D 0286: BTFSS F9E.4 0288: BRA 0286 028A: MOVWF FAD .................... q++; 028C: INCF 05,F 028E: BRA 0210 .................... } .................... .................... } .................... 0290: SLEEP .................... void clear_mem (void) .................... { .................... for (q=0;q<=250;q++) * 012A: CLRF 05 012C: MOVF 05,W 012E: SUBLW FA 0130: BNC 013E .................... { .................... write_ext_eeprom(q,0xff); 0132: MOVFF 05,09 0136: SETF 0A 0138: RCALL 00E8 013A: INCF 05,F 013C: BRA 012C .................... } 013E: GOTO 020A (RETURN) .................... } .................... Configuration Fuses: Word 1: C800 INTRC_IO FCMEN IESO Word 2: 1E17 NOPUT BROWNOUT BORV27 NOWDT WDT32768 Word 3: 0500 CCP2C1 NOPBADEN LPT1OSC NOMCLR Word 4: 0081 STVREN NOLVP NOXINST NODEBUG Word 5: C00F NOPROTECT NOCPB NOCPD Word 6: E00F NOWRT NOWRTC NOWRTB NOWRTD Word 7: 400F NOEBTR NOEBTRB