hola a todos tengo un problemita
necesito contruir un detector de nivel para tanque de agua
y kiero que a cierto nivel bajo ensienda una bomba y cuando este lleno este se apaque,
tengo el programa de lo que es un medidor de distancia
pero quiero ver si me ayudan para agregarle codigo para hacer esas interrupciones !!
gracias
;********************************************************
;
; Ultrasonic Range Meter Version 2
;
; Device : PIC16F873
; Author : Seiichi Inoue
;********************************************************
list p=pic16f873
include p16f873.inc
__config _hs_osc & _wdt_off & _pwrte_on & _lvp_off
errorlevel -302 ;Suppress bank warning
;**************** Label Definition ********************
cblock h'20'
s_count ;Send-out time counter
s_adj ;Adjustment data address
s_adj_count ;Rotate value save adr
s_digit ;Digit cont work address
g_time1 ;Guard timer address 1
g_time2 ;Guard timer address 2
p_countl ;Propagation L cnt adr
p_counth ;Propagation H cnt adr
digit_cnt ;Digit counter head adr
disp_ha ;Digit head address
disp_u ;1st digit address
disp_t ;10th digit address
disp_h ;100th digit address
seg7_ha ;7 segLED table head adr
seg70 ;Pattern 0 set adr
seg71 ;Pattern 1 set adr
seg72 ;Pattern 2 set adr
seg73 ;Pattern 3 set adr
seg74 ;Pattern 4 set adr
seg75 ;Pattern 5 set adr
seg76 ;Pattern 6 set adr
seg77 ;Pattern 7 set adr
seg78 ;Pattern 8 set adr
seg79 ;Pattern 9 set adr
seg7a ;Pattern A set adr
seg7b ;Pattern B set adr
endc
ra1 equ h'01' ;RA1 port designation
ra2 equ h'02' ;RA2 port designation
ra3 equ h'03' ;RA3 port designation
ra5 equ h'05' ;RA5 port designation
ccp1 equ h'02' ;CCP1(RC2) designation
seg7_0 equ b'01000000' ;-gfedcba Pattern 0
seg7_1 equ b'01111001' ; Pattern 1
seg7_2 equ b'00100100' ; Pattern 2
seg7_3 equ b'00110000' ; Pattern 3
seg7_4 equ b'00011001' ; Pattern 4
seg7_5 equ b'00010010' ; Pattern 5
seg7_6 equ b'00000010' ; Pattern 6
seg7_7 equ b'01111000' ; Pattern 7
seg7_8 equ b'00000000' ; Pattern 8
seg7_9 equ b'00010000' ; Pattern 9
seg7_a equ b'01111111' ; Detect error
seg7_b equ b'00100011' ; Illegal int
;**************** Program Start ***********************
org 0 ;Reset Vector
goto init
org 4 ;Interrupt Vector
goto int
;**************** Initial Process *********************
init
;*** Port initialization
bsf status,rp0 ;Change to Bank1
movlw b'00000001' ;AN0 to input mode
movwf trisa ;Set TRISA register
clrf trisb ;RB port to output mode
movlw b'00000100' ;RC2/CCP1 to input mode
movwf trisc ;Set TRISC register
;*** Ultrasonic sending period initialization (Timer0)
movlw b'11010111' ;T0CS=0,PSA=0,PS=1:256
movwf option_reg ;Set OPTION_REG register
bcf status,rp0 ;Change to Bank0
clrf tmr0 ;Clear TMR0 register
;*** Capture mode initialization (Timer1)
movlw b'00000001' ;Pre=1:1 TMR1=Int TMR1=ON
movwf t1con ;Set T1CON register
clrf ccp1con ;CCP1 off
;*** A/D converter initialization
movlw b'01000001' ;ADCS=01 CHS=AN0 ADON=ON
movwf adcon0 ;Set ADCON0 register
bsf status,rp0 ;Change to Bank1
movlw b'00001110' ;ADFM=0 PCFG=1110
movwf adcon1 ;Set ADCON1 register
bcf status,rp0 ;Change to Bank0
;*** Display initialization (Timer2)
movlw disp_u ;Set digit head address
movwf disp_ha ;Save digit head sddress
movlw h'0a' ;"Detect error" data
movwf disp_u ;Set 1st digit
movwf disp_t ;Set 10th digit
movwf disp_h ;Set 100th digit
movlw d'3' ;Digit counter
movwf digit_cnt ;Set digit counter
movlw seg70 ;Set 7seg head address
movwf seg7_ha ;Save 7seg head address
movlw seg7_0 ;Set 7segment pattern 0
movwf seg70 ;Save pattern 0
movlw seg7_1 ;Set 7segment pattern 1
movwf seg71 ;Save pattern 1
movlw seg7_2 ;Set 7segment pattern 2
movwf seg72 ;Save pattern 2
movlw seg7_3 ;Set 7segment pattern 3
movwf seg73 ;Save pattern 3
movlw seg7_4 ;Set 7segment pattern 4
movwf seg74 ;Save pattern 4
movlw seg7_5 ;Set 7segment pattern 5
movwf seg75 ;Save pattern 5
movlw seg7_6 ;Set 7segment pattern 6
movwf seg76 ;Save pattern 6
movlw seg7_7 ;Set 7segment pattern 7
movwf seg77 ;Save pattern 7
movlw seg7_8 ;Set 7segment pattern 8
movwf seg78 ;Save pattern 8
movlw seg7_9 ;Set 7segment pattern 9
movwf seg79 ;Save pattern 9
movlw seg7_a ;Set 7segment pattern A
movwf seg7a ;Save pattern A
movlw seg7_b ;Set 7segment pattern B
movwf seg7b ;Save pattern B
movlw b'00011110' ;OPS=1:4,T2=ON,EPS=1:16
movwf t2con ;Set T2CON register
bsf status,rp0 ;Change to Bank1
movlw d'157' ;157x64=10048usec
movwf pr2 ;Set PR2 register
bsf pie1,tmr2ie ;TMR2IE=ON
bcf status,rp0 ;Change to Bank0
;*** Interruption control
movlw b'11100000' ;GIE=ON,PEIE=ON,T0IE=ON
movwf intcon ;Set INTCON register
wait
goto $ ;Interruption wait
;*************** Interruption Process *****************
int
movfw pir1 ;Read PIR1 register
btfsc pir1,ccp1if ;Capture occurred ?
goto capture ;Yes. "Capture"
btfsc pir1,tmr2if ;TMR2 time out ?
goto led_cont ;Yes. "LED display"
movfw intcon ;Read INTCON register
btfsc intcon,t0if ;TMR0 time out ?
goto send ;Yes. "Pulse send"
;*************** Illegal interruption *****************
illegal
movlw h'0b' ;Set Illegal disp digit
addwf seg7_ha,w ;Seg7 H.Adr + digit
movwf fsr ;Set FSR register
movfw indf ;Read seg7 data
movwf portb ;Write LED data
bcf porta,ra1 ;RA1=ON
bcf porta,ra2 ;RA2=ON
bcf porta,ra3 ;RA3=ON
goto $ ;Stop
;************ END of Interruption Process **************
int_end
retfie
;*************** Pulse send-out Process ****************
send
bcf intcon,t0if ;Clear TMR0 int flag
clrf tmr0 ;Timer0 clear
;*** Received Pulse detection check
movfw portc ;Read PORTC register
btfsc portc,ccp1 ;Detected ?
goto detect_off ;Yes. Detected
movlw h'0a' ;"Detect error" data
movwf disp_u ;Set 1st digit
movwf disp_t ;Set 10th digit
movwf disp_h ;Set 100th digit
;*** Receive pulse detector off
detect_off
bcf porta,ra5 ;Set detector OFF
;*** Capture start
clrf tmr1h ;Clear TMR1H register
clrf tmr1l ;Clear TMR1L register
clrf ccpr1h ;Clear CCPR1H register
clrf ccpr1l ;Clear CCPR1L register
movlw b'00000101' ;CCP1M=0101(Capture)
movwf ccp1con ;Set CCP1CON register
bsf status,rp0 ;Change to Bank1
bsf pie1,ccp1ie ;CCP1 interruptin enable
bcf status,rp0 ;Change to Bank0
bcf pir1,ccp1if ;Clear CCP1 int flag
;*** Pulse sending ( 0.5 msec )
bsf portc,4 ;Start sending
movlw d'100' ;Set send-out timer
movwf s_count ;Set count
s_loop
nop ;Time adjust
nop ;Time adjust
decfsz s_count,f ;End ?
goto s_loop ;No. Continue
bcf portc,4 ;Stop sending
;*** Get adjustment data
bsf adcon0,go ;Start A/D convert
ad_check
btfsc adcon0,go ;A/D convert end ?
goto ad_check ;No. Again
movfw adresh ;Read ADRESH register
movwf s_adj ;Save converted data
movlw d'5' ;Set rotate value
movwf s_adj_count ;Save rotate value
ad_rotate
rrf s_adj,f ;Rotate right 1 bit
decfsz s_adj_count,f ;End ?
goto ad_rotate ;No. Continue
movfw s_adj ;Read rotated value
andlw b'00000111' ;Pick-up 3 bits
addlw d'54' ;(0 to 7) + 54 = 54 to 61
movwf s_adj ;Save adjustment data
;*** Capture guard timer ( 1 milisecound )
movlw d'2' ;Set loop counter1
movwf g_time1 ;Save loop counter1
g_loop1 movlw d'124' ;Set loop counter2
movwf g_time2 ;Save loop counter2
g_loop2 nop ;Time adjust
decfsz g_time2,f ;g_time2 - 1 = 0 ?
goto g_loop2 ;No. Continue
decfsz g_time1,f ;g_time1 - 1 = 0 ?
goto g_loop1 ;No. Continue
;*** Receive pulse detector on
bsf porta,ra5 ;Set detector ON
goto int_end
;****************** Capture Process ********************
capture
bcf pir1,ccp1if ;Clear CCP1 int flag
clrf p_countl ;Clear L count
clrf p_counth ;Clear H count
clrf ccp1con ;CCP1 off
division
movfw s_adj ;Read adjustment data
subwf ccpr1l,f ;Capture - adjust
btfsc status,z ;Result = 0 ?
goto division2 ;Yes. "R = 0"
btfsc status,c ;Result < 0 ?
goto division1 ;No. "R > 0"
goto division3 ;Yes."R < 0"
division1 ;( R > 0 )
movlw d'1' ;Set increment value
addwf p_countl,f ;Increment L count
btfss status,c ;Overflow ?
goto division ;No. Continue
incf p_counth,f ;Increment H count
goto division ;Jump next
division2 ;( R = 0 )
movfw ccpr1h ;Read CCPR1H
btfss status,z ;CCPR1H = 0 ?
goto division1 ;No. Next
movlw d'1' ;Set increment value
addwf p_countl,f ;Increment L count
btfss status,c ;Overflow ?
goto digit_set ;Jump to digit set
incf p_counth,f ;Increment H count
goto digit_set ;Jump to digit set
division3 ;( R < 0 )
movfw ccpr1h ;Read CCPR1H
btfss status,z ;CCPR1H = 0 ?
goto division4 ;No. Borrow process
goto digit_set ;Jump to digit set
division4
decf ccpr1h,f ;CCPR1H - 1
movlw d'255' ;Borrow value
addwf ccpr1l,f ;CCPR1L + 255
incf ccpr1l,f ;CCPR1L + 1
goto division1 ;Next
;**************** Digit Set Process ********************
digit_set
clrf disp_u ;Clear 1st digit
clrf disp_t ;Clear 10th digit
clrf disp_h ;Clear 100th digit
;*** 100th digit
digit_h
movlw d'100' ;Divide value
subwf p_countl,f ;Digit - divide
btfsc status,z ;Result = 0 ?
goto digit_h2 ;Yes. "R = 0"
btfsc status,c ;Result < 0 ?
goto digit_h1 ;No. "R > 0"
goto digit_h3 ;Yes."R < 0"
digit_h1 ;( R > 0 )
incf disp_h,f ;Increment 100th count
goto digit_h ;Jump next
digit_h2 ;( R = 0 )
movfw p_counth ;Read H counter
btfss status,z ;H counter = 0 ?
goto digit_h1 ;No. Next
incf disp_h,f ;Increment 100th count
goto digit_t ;Jump to 10th digit pro
digit_h3 ;( R < 0 )
movfw p_counth ;Read H counter
btfss status,z ;H counter = 0 ?
goto digit_h4 ;No. Borrow process
movlw d'100' ;Divide value
addwf p_countl,f ;Return over sub value
goto digit_t ;Jump to 10th digit pro
digit_h4
decf p_counth,f ;H counter - 1
movlw d'255' ;Borrow value
addwf p_countl,f ;L counter + 255
incf p_countl,f ;L counter + 1
goto digit_h1 ;Next
;*** 10th digit
digit_t
;*** Range over check
movfw disp_h ;Read 100th digit
sublw d'9' ;9 - (100th digit)
btfsc status,z ;Result = 0 ?
goto digit_t0 ;Yes. "R = 0"
btfsc status,c ;Result < 0 ?
goto digit_t0 ;No. "R > 0"
movlw h'0a' ;"Detect error" data
movwf disp_u ;Set 1st digit
movwf disp_t ;Set 10th digit
movwf disp_h ;Set 100th digit
goto int_end
digit_t0
movlw d'10' ;Divide value
subwf p_countl,f ;Digit - divide
btfsc status,z ;Result = 0 ?
goto digit_t1 ;Yes. "R = 0"
btfsc status,c ;Result < 0 ?
goto digit_t1 ;No. "R > 0"
goto digit_t2 ;Yes."R < 0"
digit_t1 ;( R >= 0 )
incf disp_t,f ;Increment 10th count
goto digit_t ;Jump next
digit_t2 ;( R < 0 )
movlw d'10' ;Divide value
addwf p_countl,f ;Return over sub value
goto digit_u ;Jump to 1st digit pro
;*** 1st digit
digit_u
movfw p_countl ;Read propagetion counter
movwf disp_u ;Save 1st count
goto int_end
;**************** LED display control *****************
led_cont
bcf pir1,tmr2if ;Clear TMR2 int flag
movfw digit_cnt ;Read digit counter
movwf s_digit ;Save digit counter
decfsz s_digit,f ;1st digit ?
goto d_check1 ;No. Next
bsf porta,ra1 ;RA1=OFF
bsf porta,ra2 ;RA2=OFF
bcf porta,ra3 ;RA3=ON
goto c_digit ;Jump to digit cont
d_check1
decfsz s_digit,f ;10th digit ?
goto d_check2 ;No. 100th digit
bsf porta,ra1 ;RA1=OFF
bcf porta,ra2 ;RA2=ON
bsf porta,ra3 ;RA3=OFF
goto c_digit ;Jump to digit cont
d_check2
bcf porta,ra1 ;RA1=ON
bsf porta,ra2 ;RA2=OFF
bsf porta,ra3 ;RA3=OFF
c_digit
decf digit_cnt,w ;Digit count - 1
addwf disp_ha,w ;Digit H.Adr + count
movwf fsr ;Set FSR register
movfw indf ;Read digit
addwf seg7_ha,w ;Seg7 H.Adr + digit
movwf fsr ;Set FSR register
movfw indf ;Read seg7 data
movwf portb ;Write LED data
decfsz digit_cnt,f ;Digit count - 1
goto int_end ;Jump to interrupt end
movlw d'3' ;Initial value
movwf digit_cnt ;Set initial value
goto int_end ;Jump to interrupt end
;********************************************************
; END of Ultrasonic Range Meter
;********************************************************
end
