Use of MATCHROM on one wire device

dbj

Still trying to make this work will tokenize but displays no DS2760 device found.

metron9

A quick look at the code Most of the code is commented out (I Think, never programmed using OWOUT or get commmands)
So it looks to me that char never gets any input. Also the commas at the end of the MatchRom don't seem right to me.


Maby add a debug instruction to see what char is at the point before it is compared with $30

Check_Device:
OWOUT OWpin, 8, [noparse][[/noparse]$30,$B9,$58,$F3,$10,$00,$00,$9D]' MatchROM,
'OWIN OWpin, [noparse][[/noparse]STR ROMData\8]

'OWOUT OW, 8, 8,[noparse][[/noparse]$30,$B9,$58,$F3,$10,$00,$00,$9D]' MatchROM,
'OWOUT OW, 8,[noparse][[/noparse]$30,$B9,$58,$F3,$10,$00,$00,$9D]' MatchROM,
'OWIN OW, %0010, [noparse][[/noparse]SPSTR 8] ' store in SPRAM
'GET idx, char ' read device type
IF (char <> $30) THEN ' if not $30, wrong device
DEBUG "No DS2760 found."
STOP ' stop program
ENDIF


perhaps

Check_Device:
    OWOUT OWpin, 8, [noparse][[/noparse]$30,$B9,$58,$F3,$10,$00,$00,$9D]  ' MatchROM
    OWIN  OWpin,  [noparse][[/noparse]STR ROMData\8]
    OWOUT OW, 8, 8,[noparse][[/noparse]$30,$B9,$58,$F3,$10,$00,$00,$9D]   ' MatchROM
    OWOUT OW, 8,[noparse][[/noparse]$30,$B9,$58,$F3,$10,$00,$00,$9D]       ' MatchROM
    OWIN  OW, %0010, [noparse][[/noparse]SPSTR 8]                    ' store in SPRAM
    GET idx, char                                 ' read device type
  IF (char <> $30) THEN                         ' if not $30, wrong device
    DEBUG "No DS2760 found."
    STOP                                        ' stop program
  ENDIF

Post Edited (metron9) : 11/11/2005 7:26:38 PM GMT