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Author Topic: Mitutoyo spc protocol  (Read 9727 times)
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fernandodiaz
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« on: October 21, 2007, 01:12:18 01:12 »

Hi here i make one interpreter to mitutoyo SPC interface (calipers micrometers rules etc)
only conect pic direct to instument 3 pin wires and send serial rs232 readout  very short code each 200ms update  and send   made in Mexico.
enjoy .......



   'include "proton_4.inc"   ' MITUTOYO
   'DEVICE 16F877
   device 16f84A
DIM TEMP  AS BYTE ' var del loop  ' total de lineas de codigo 77
DIM TEMP1 AS BYTE
DIM SIGNO AS BIT  ' SIGNO DE LA  MEDIDA
dim D5Y6  as byte ' digitos
dim D3Y4  as byte ' digitos
dim D1Y2  as byte ' digitos
DIM PUNTO AS BYTE ' POSICION DEL PUNTO Y UNIDADES MM 0 INCH
  
INPUT   PORTA.0  ' Request  
INPUT   PORTB.7  ' clock pin
INPUT   PORTB.6  ' data  pin
OUTPUT  PORTA.1  ' SERIAL OUTPUT
OPTION_REG.7 = 0 ' PULLUP ENABLE pullup da 160ua
x: '@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
low portA.0
SIGNO = 0   ' PONER A 0 TODAS
D5Y6  = 0
D3Y4  = 0
D1Y2  = 0
PUNTO = 0    
'______________________________INICIO_____________________
  'request on pin  to 2.5v  a 0v dc resistencia de 100k
FOR TEMP = 1 TO 19 'EN TOTAL 19 CLOCKS IGNORADOS-1 INTERRUP TOTAL DE INTERRUP = 52 CLOCKS
@ BTFSC 06,7 ; BRINCA SI 0
@ GOTO $-1
@ BTFSS 06,7 ; BRINCA SI 1
@ GOTO $-1
NEXT TEMP
gosub checarelojL ' 1 0 1  ret  CHECA SI ES POS O NEGATVO BIT 20
@ BTFSC 06,6 ; BRINCA SI VALE 0 DATA
@ BSF SIGNO  ; PONE EN 1 VAR TIPO BIT
gosub checarelojh
gosub ddr '______   ____   _____
D5Y6 = TEMP1
gosub ddr
D3Y4 = TEMP1
gosub ddr
D1Y2 = TEMP1
gosub ddr
PUNTO = TEMP1
input portA.0  
'______________________TERMINA______________________________
    
TEMP = D1Y2
GOSUB CONVIERTE
 D1Y2 = TEMP
          
       TEMP = D3Y4
       GOSUB CONVIERTE
        D3Y4 = TEMP
                
            TEMP = D5Y6
             GOSUB CONVIERTE
              D5Y6 = TEMP

                TEMP = PUNTO  ' FLOTATE POS Y UIDADES MM INCH
                GOSUB CONVIERTE
                PUNTO = TEMP
 
'rsout dec signo," ",dec D5Y6," ",DEC D3Y4," ",DEC D1Y2 ' ," ",dec punto


 SEROUT PORTA.1,16468,[dec signo," ",dec2 D5Y6,"",DEC2 D3Y4,"",DEC2 D1Y2,13]   '"  ",DEC2 PUNTO, 13] '84 o 16468 - 9600 BAUD


 delayms 200
GOTO X
end



CHECARELOJL: ' subrutina para checado de reloj
@ BTFSC 06,7  ; BRINCA SI 0
@ GOTO $-1
return
CHECARELOJH: ' subrutina para checado de reloj
@ BTFSS 06,7  ; BRINCA SI 1
@ GOTO $-1
return

CONVIERTE:  
TEMP = ((TEMP & %1111) * 10) + (TEMP >> 4) 'COVIERTE bcd Binary Coded Decimal A digitos
RETURN
 
 
 DDR:
FOR TEMP = 1 TO 7
gosub checarelojL
@ BTFSC 06,6  ; BRINCA SI VALE 0 DATA
@ BSF TEMP1,7 ; PONE EN 1 VAR
@ RRF TEMP1
gosub checarelojh
NEXT TEMP  
gosub checarelojL    ' el octavo bit
@ BTFSC 06,6  ; octabo bit
@ BSF TEMP1,7 ; PONE EN 1 VAR  
gosub checarelojh
return
« Last Edit: July 03, 2011, 04:08:19 16:08 by fernandodiaz » Logged
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