;I2C总线程序
;thisiseepromread&writeprogramm
;thespecialstoreramunit
wequ0
f0equ0
rtCCequ1
pcequ2
f2equ2
f3equ3
f4equ4
raequ5
rbequ6
rcequ7
pclathequ0ah
iNTConequ0bh
pir1equ0ch
tmr1lequ0eh
tmr1hequ0fh
t1conequ10h
tmr2equ11h
t2conequ12h
sspbufequ13h
sspconequ14h
ccpr1lequ15h
ccpr1hequ16h
ccpconequ17h
adcon0equ1fh
;
;inthebank1
trISAequ85h
trisbequ86h
triscequ87h
pconequ8eh
pie1equ8ch
pr2equ92h
sspaddequ93h
sspstatequ94h
adcon1equ9fh
;
;——————————————————–
;thegenaralstoreramunit
;
temp6equ76h
temp7equ77h
;
eepCTRequ6dh;eepromcontrolwordsbuffer
eepaddrequ6eh;eepromaddressbuffer
eepdataequ6fh;eepromdatabuffer
;
;——————————————————–
;thebitsoframunit
sclequ3;rc
sdaequ4;rc
;
pdequ3;status
toequ4;status
;
rbifequ0;intcon
inTIfequ1;intcon
rTIfequ2;intcon
rbieequ3;intcon
inTIeequ4;intcon
rTIeequ5;intcon
adieequ6;intcon
gieequ7;intcon
;
;———————————————————-
;Thecontact
sda_inequ10h
sda_outequ00h
;
;———————————————————-
org000h
gotomain_program
;——————————————————–
;theson-programarea
;——————————————————–
org005h
;——————————————————–
make_s
bsfrc，sda
bsff3，5
;bsfrc，sda
MOVlwsda_out
MOVwftrisc
bcff3，5
nop
ack_check
bsff3，5
;bcfrc，sda
MOVlwsda_in
MOVwftrisc
bcff3，5
nop
m_start
bsfrc，scl
nop
btfssrc，sda
gotomake_s
m_start0
bsfrc，scl
bcfrc，sda
bsff3，5
;bsfrc，sda
MOVlwsda_out
MOVwftrisc
bcff3，5
MOVlw10100000b
btfscsign，read_b
MOVlw10100001b
MOVwf6dh
MOVlw6dh
MOVwff4
w_byte
bsff3，5
;bsfrc，sda
MOVlwsda_out
MOVwftrisc
bcff3，5
MOVlw08h
MOVwftemp2
bit_loop
nop
rlff0
bcfrc，scl
btfssf3，0
goto^+3
bsfrc，sda
goto^+2
bcfrc，sda
nop
bsfrc，scl
decfsztemp2
gotobit_loop
nop
bcfrc，scl
bsff3，5
;bcfrc，sda
MOVlwsda_in
MOVwftrisc
bcff3，5
bsfrc，scl
nop
btfscrc，sda
gotom_start0
bcfrc，scl
return
;
w_stop
m_stop
bcfrc，sda
bsff3，5
;bsfrc，sda
MOVlwsda_out
MOVwftrisc
bcff3，5
nop
bsfrc，scl
nop
bsfrc，sda
nop
bcfrc，scl
return
;
rd_bytes
nop
rnxtb
bcfrc，scl
bsff3，5
;bcfrc，sda
MOVlwsda_in
MOVwftrisc
bcff3，5
MOVlw08h
MOVwftemp2
rnx
bcfrc，scl
nop
bcff3，0
btfscrc，sda
bsff3，0
rlff0
bsfrc，scl
nop
decfsztemp2
gotornx
incff4，1
bsff3，5
;bsfrc，sda
MOVlwsda_out
MOVwftrisc
bcff3，5
bcfrc，scl
decfsztemp4
gotot_ackg
r_stop
gotom_stop
t_ackg
bcfrc，sda
nop
bsfrc，scl
nop
gotornxtb
;—————————–
delay_1ms
MOVlw.1
MOVwftemp6
delay_publIC
MOVlw.223
MOVwftemp7
public_2
clrwdt
decfsztemp7，1
gotopublic_2
decfsztemp6，1
gotodelay_public
return
;—————————–
;—————————–
;themainprogramarea
;—————————–
main_program
bsff3，5
MOVlw0fh
MOVwf81h
MOVlwsda_in
MOVwftrisc
bcff3，5;bank0
reset_delay
MOVlw20h
MOVwff4
next
clrff0
incff4，1
MOVlw80h;clr20h–7fhram
clrz
xorwff4，w
skpz
gotonext
;———————–
clrfintcon
bsff3，5
MOVlw0fh
MOVwf81h
bcff3，5;bank0
;
;—————————
read_eeprom_repair
bcfrc，eneep
calldelay_1ms
;
callack_check
MOVfaddress，0
MOVwf6eh
incff4
callw_byte
bsfsign，read_b
callack_check
bcfsign，read_b
MOVlw20h
MOVwff4
MOVlw.8
MOVwftemp4
callrd_bytes
nop
nop
nop
nop
calldelay_1ms
bsfrc，eneep
;
write_eeprom_repair
bcfrc，eneep
calldelay_1ms
;
callack_check
MOVfaddress，0
MOVwf6eh
incff4
callw_byte
MOVlw40h
MOVwff4
MOVlw.8
MOVwftemp4
write_option
callw_byte
incff4，1
decfsztemp4
gotowrite_option
callw_stop
nop
nop
nop
nop
calldelay_1ms
bsfrc，eneep
;
loop
gotoloop
end
