ds1820 litle problems....

fiew questions....

i have 8 ds1820 on link

1 can I use skip rom to invoke conversion, (to avoid 8 match rom conversion commands) in all sensors ? than reading I will do with match-rom....
2 how to sense/check if is the sensor on link ? but with match rom....

3 i saw that exist label after owin/out to check sensor existance, but for me this do error:
"Symbol not previusly defined (OWRDONE)
argument out of range ('389 not betveen -128 and 127)"


4 i searched from auto sensor discovery sub-s but i never foud something to start up, i sow text in ds's pdf but is to dificoult to understean evriting, with my english.... to start from scratch... (am I writed understundible that :-)


part of sensor reading code......

Code:

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GetTemp:
FOR B = 0 TO BR_SENS
FOR A = 0 TO 7 ' load ROM pattern
  READ eeROMS+(B*8)+A,ID[A]
NEXT A
OWOUT OW1,1,[MatchROM,STR ID\8,ConvertTemp]
NEXT B

PAUSE 500

LCDOUT $FE,1

FOR B = 0 TO BR_SENS
    FOR A = 0 TO 7 ' load ROM pattern
        READ eeROMS+(B*8)+A,ID[A]
    NEXT A
    OWOUT OW1,1,[MatchROM,STR ID\8,ReadScratch]
    OWIN OW1,2,[tInLow,tInHigh]',NIJE_TU

OWPRESENT[B] = DA
GOTO TU_JE
NIJE_TU:
OWPRESENT[B] = NE
TU_JE:

    TMINUS[B] = MINUS
    t05[B] = NUL5
    W = tempIn
'    tempIn = tempIn/2    ' DJELIL0 BI SE NA POLA ZA STUPANJ ALI OVAKO IMAMO SVE <<1
'FORMAT:        BIT 7 = +-, BIT 6-1 STUPNJEVI, BIT 0 = .5/.0 ZBOG BROJANJA I KOMPARACIJE
  ' tRESTO[b] = W|%00000001                            ' tRESTO IF .5
    IF !TMINUS[B] THEN NoNeg1
    tempIn = tempIn | $FF00                    ' extend sign bits for negs
    NoNeg1:
    TEMPERATURA[B] = tempIn.lowbyte  ' save Celsius value
    TEMP_DISP[B]=TEMPERATURA[B]&%11111110      ' IDVOJI 6 TEMP.BITOVA U "D"
    TEMP_DISP[B]=TEMP_DISP[B]>>1
    IF TMINUS[B] THEN TEMP_DISP[B]=TEMP_DISP[B]|128  'PRIPREMI ZA SDEC PRIKAZ NA DISP.
   
'IF tRESTO[b] THEN TEMPERATURA[B] = TEMPERATURA[B] | %01000000          'PAKIRANJE


tIND[B]=$0

GOSUB KOMP_TEMP

        ' SETIRATI INDIKATOR PO FLAGU !

IF LCD_PRIKAZ = 2 THEN
  IF B = 1 THEN LCDOUT $FE,$01,$FE,$02, BIN16 W
ENDIF   
'PRIKAZ NA LCD...............  SVIH 8 TEMPERATURA
IF LCD_PRIKAZ = 1 THEN
    SELECT CASE B
      CASE 0,1
        C = $2
      CASE 2,3
        C = $C0
      CASE 4,5
        C = $90
      CASE 6,7
        C = $D0
    END select
  LCDOUT $FE,C     
    SELECT CASE B
      CASE 1,3,5,7
        FOR A = 1 TO 8
          LCDOUT $FE,$14 
        NEXT A       
    END SELECT

     
'    IF W = 65535 OR W = 0 THEN
'        lcdout "T-ERR ",5
'    ELSE
      IF !tMINUS[B] THEN lcdout "+"
      lcdout SDEC2 TEMP_DISP[B],".",#(t05[B]*5),DegSym,tIND[B]
'    ENDIF
 ENDIF
'--------------  LCD END

NEXT B

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