PIC microcontroller software simulation IIC read and write routines

I2C Bus Program ; This is an EEPROM read and write program ; The special storage RAM unit Wequ0 F0equ0 rtCCequ1 Pcequ2 F2equ2 F3equ3 F4equ4 Raequ5 Rbequ6 Rcequ7 Pclathequ0ah iNTConequ0bh Pirlequ0ch Tmr1lequ0eh Tmr1hequ0fh T1conequ10h Tmr2equ11h T2conequ12h Sspbufequ13h Sspconequ14h Ccpr1lequ15h Ccpr1hequ16h Ccpconequ17h Adcon0equ1fh ; ; In the bank1 trISAequ85h Trisbequ86h Triscequ87h Pconequ8eh Pie1equ8ch Pr2equ92h Sspaddequ93h Sspstatequ94h Adcon1equ9fh ; ;------------------------------------------------- ------- ; The general storage RAM unit ; Temp6equ76h Temp7equ77h ; eepCTRequ6dh; EEPROM control words buffer Eepaddrequ6eh; EEPROM address buffer Eepdataequ6fh; EEPROM data buffer ; ;------------------------------------------------- ------- ; The bits of a RAM unit Sclequ3; RC Sdaequ4; RC ; Pdequ3; status Toequ4; status ; Rbifequ0; INTCON Intifequ1; INTCON Rtifequ2; INTCON Rbieequ3; INTCON Intieequ4; INTCON Rtieequ5; INTCON Adieequ6; INTCON Gieequ7; INTCON ; ;------------------------------------------------- --------- ; The contact Sda_inequ10h Sda_outequ00h ; ;------------------------------------------------- --------- Org000h Gotomain_program ;------------------------------------------------- ------- ; The son-program area ;------------------------------------------------- ------- Org005h ;------------------------------------------------- ------- Make_s Bsf rc, sda Bsff3,5 ;bsf rc, sda MOVlwsda_out MOVwf trisc Bcff3,5 Nop Ack_check Bsff3,5 ;bcf rc, sda MOVlwsda_in MOVwf trisc Bcff3,5 Nop M_start Bsf rc, scl Nop Btfss rc, sda Gotomake_s M_start0 Bsf rc, scl Bcf rc, sda Bsff3,5 ;bsf rc, sda MOVlwsda_out MOVwf trisc Bcff3,5 MOVlw10100000b Btfsc sign, read_b MOVlw10100001b MOVwf 6dh MOVlw 6dh MOVwff4 W_byte Bsff3,5 ;bsf rc, sda MOVlwsda_out MOVwf trisc Bcff3,5 MOVlw 08h MOVwftemp2 Bit_loop Nop Rlff0 Bcf rc, scl Btfssf3,0 Goto^+3 Bsf rc, sda Goto^+2 Bcf rc, sda Nop Bsf rc, scl Decfsz temp2 Gotobit_loop Nop Bcf rc, scl Bsff3,5 ;bcf rc, sda MOVlwsda_in MOVwf trisc Bcff3,5 Bsf rc, scl Nop Btfsc rc, sda Gotom_start0 Bcf rc, scl Return ; W_stop M_stop Bcf rc, sda Bsff3,5 ;bsf rc, sda MOVlwsda_out MOVwf trisc Bcff3,5 Nop Bsf rc, scl Nop Bsf rc, sda Nop Bcf rc, scl Return ; Rd_bytes Nop Rnxtb Bcf rc, scl Bsff3,5 ;bcf rc, sda MOVlwsda_in MOVwf trisc Bcff3,5 MOVlw 08h MOVwftemp2 Rnx Bcf rc, scl Nop Bcff3,0 Btfsc rc, sda Bsff3,0 Rlff0 Bsf rc, scl Nop Decfsz temp2 Gotonx Incff4,1 Bsff3,5 ;bsf rc, sda MOVlwsda_out MOVwf trisc Bcff3,5 Bcf rc, scl Decfsz temp4 Gotot_ackg R_stop Gotom_stop T_ackg Bcf rc, sda Nop Bsf rc, scl Nop Gotonnxtb ;----------------------------- Delay_1ms MOVlw .1 MOVwftemp6 delay_publIC MOVlw .223 MOVwftemp7 Public_2 Crrwdt Decfsz temp7,1 Gotopublic_2 Decfsz temp6,1 Gotodelay_public Return ;----------------------------- ;----------------------------- ; The main program area ;----------------------------- Main_program Bsff3,5 MOVlw 0fh MOVwf 81h MOVlwsda_in MOVwf trisc Bcff3,5; bank0 Reset_delay MOVlw 20h MOVwff4 Next Clrff0 Incff4,1 MOVlw 80h; clr 20h--7fh ram Crrz Xorwff4,w Skpz Gotonext ;----------------------- Clrf intcon Bsff3,5 MOVlw 0fh MOVwf 81h Bcff3,5; bank0 ; ;--------------------------- Read_eeprom_repair Bcf rc, eneep Calldelay_1ms ; Callack_check MOVf address, 0 MOVwf 6eh Incff4 Callw_byte Bsfsign, read_b Callack_check Bcfsign, read_b MOVlw 20h MOVwff4 MOVlw .8 MOVwftemp4 Callrd_bytes Nop Nop Nop Nop Calldelay_1ms Bsf rc, eneep ; Write_eeprom_repair Bcf rc, eneep Calldelay_1ms ; Callack_check MOVf address, 0 MOVwf 6eh Incff4 Callw_byte MOVlw 40h MOVwff4 MOVlw .8 MOVwftemp4 Write_option Callw_byte Incff4,1 Decfsz temp4 Gotowrite_option Callw_stop Nop Nop Nop Nop Calldelay_1ms Bsf rc, eneep ; Loop Gotoloop End

Dell Adapter

Laptop power adapter charger for Dell:

Laptop Model	Adapter Output
Latitude E5400 E5410 E5500 E5510	19.5v 4.62a, 7450
Studio XPS 16 (1645)1640 1645 1647	19.5v 4.62a, 7450
Studio XPS M1645 M1647	19.5v 4.62a, 7450
XPS 14 15 17 L501x L502x L702x L702x	19.5v 4.62a, 7450
Inspiron 1464 1564 1764	19.5v 4.62a, 7450
Inspiron 1525 1440 1526	19.5v 3.34a, 7450
Precision M4600 M6600	19.5v 6.7a, 7450
Inspiron N5050 N4010 N5110	19.5v 3.34a, 7450
Inspiron 14Z-N411Z 13Z N311Z	19.5v 4.62a, 7450
Inspiron 1545	19.5v 3.34a, 7450
Latitude E5420 E5530 E5430 E6420	19.5v 4.62a, 7450
Inspiron 1440 1525 1526 1545 1750	19.5v 3.34a, Octagon tip
Inspiron 1300 B120 B130	19v 3.16a/3.42, 5525
Inspiron 1525 1526 1545	19.5v 3.34a, 7450
Studio 1440 1440n 1440z 14z 14zn	19.5v 3.34a, 7450
Latitude E4300 E4310	19.5v 4.62a, 7450
Inspiron 13Z 13ZD 13ZR M301 M301z M301ZD M301ZR N301	19.5v 3.34a, 7450
Inspiron N301Z N301ZD N301ZR	19.5v 3.34a, 7450
Studio 1535 1536 1555 1557 1558	19.5v 4.62a, 7450
Latitude E5420 E5520 E6430 E6530 E6420 E6520	19.5v 4.62a, 7450
Inspiron Mini 10 10v 1010 1010n 1010v 1011 1011n 1011v	19v 1.58a, 5517
Inspiron 14V 14VR M4010 N4020 N4030	19.5v 4.62a, 7450
Inspiron N4110 N5110 N7110 M5010	19.5v 3.34a, 7450
630M 640M E1405	19.5v 4.62a, 7450
Inspiron 15-3521 17-3721	19.5v 3.34a, 7450
Latitude 120L	19.5v 3.34a, 7450
Vostro 1710 1710n 1720 1720n	19.5v 4.62a, 7450
Vostro 1500 1700 Inspiron 1520 1521 1720	19.5v 4.62a, 7450
Vostro 1400 1420 PP26L	19.5v 3.34a, 7450
Latitude D410	19.5v 3.34a, 7450
Inspiron 1120, 1121, M101	19.5v 3.34a, 7450
Inspiron Mini 1012 1018	19v 1.58a, 5517

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