CCS PCH C Compiler, Version 5.048, 26145 28-Mar-23 11:59 Filename: C:\Users\soac-gj2\Desktop\i2c multi master\ccs\main.lst ROM used: 132 bytes (0%) Largest free fragment is 49020 RAM used: 6 (0%) at main() level 7 (0%) worst case Stack used: 0 locations Stack size: 31 * 0000: GOTO 0032 .................... #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 .................... .................... #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) * 000C: CLRF FEA 000E: MOVLW 06 0010: MOVWF FE9 0012: MOVF FEF,W 0014: BZ 0030 0016: MOVLW 02 0018: MOVWF 01 001A: CLRF 00 001C: DECFSZ 00,F 001E: BRA 001C 0020: DECFSZ 01,F 0022: BRA 001A 0024: MOVLW 97 0026: MOVWF 00 0028: DECFSZ 00,F 002A: BRA 0028 002C: DECFSZ FEF,F 002E: BRA 0016 0030: 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) .................... .................... #define EEPROM_ADDRESS BYTE .................... #define EEPROM_SIZE 256 .................... .................... void init_ext_eeprom() { .................... output_float(EEPROM_SCL); * 0004: BSF F94.3 .................... output_float(EEPROM_SDA); 0006: BSF F94.4 0008: GOTO 005C (RETURN) .................... } .................... .................... BOOLEAN ext_eeprom_ready() { .................... int1 ack; .................... i2c_start(); // If the write command is acknowledged, .................... ack = i2c_write(0xa0); // then the device is ready. .................... i2c_stop(); .................... return !ack; .................... } .................... .................... void write_ext_eeprom(BYTE address, BYTE data) { .................... while(!ext_eeprom_ready()); .................... i2c_start(); .................... i2c_write(0xa0); .................... i2c_write(address); .................... i2c_write(data); .................... i2c_stop(); .................... } .................... .................... .................... 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 main() * 0032: CLRF FF8 0034: BCF FD0.7 0036: MOVLW 70 0038: MOVWF FD3 003A: CLRF F9B 003C: MOVF FD3,W 003E: CLRF 04 0040: BCF FB8.3 0042: MOVLW 0C 0044: MOVWF FAF 0046: MOVLW A2 0048: MOVWF FAC 004A: MOVLW 90 004C: MOVWF FAB 004E: MOVF FC1,W 0050: ANDLW C0 0052: IORLW 0F 0054: MOVWF FC1 0056: MOVLW 07 0058: MOVWF FB4 .................... { .................... init_ext_eeprom(); 005A: BRA 0004 .................... .................... while(TRUE) .................... { .................... .................... //Example blinking LED program .................... output_low(LED); 005C: BCF F92.7 005E: BCF F89.7 .................... delay_ms(DELAY); 0060: MOVLW 02 0062: MOVWF 05 0064: MOVLW FA 0066: MOVWF 06 0068: RCALL 000C 006A: DECFSZ 05,F 006C: BRA 0064 .................... output_high(LED); 006E: BCF F92.7 0070: BSF F89.7 .................... delay_ms(DELAY); 0072: MOVLW 02 0074: MOVWF 05 0076: MOVLW FA 0078: MOVWF 06 007A: RCALL 000C 007C: DECFSZ 05,F 007E: BRA 0076 0080: BRA 005C .................... .................... //TODO: User Code .................... } .................... .................... } 0082: SLEEP 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