Arrays calling Arrays

[HenrikOlsson]

Hi,
I've never played with the 1-wire commands but according to the manual you should be able to use the STR modifier to send an array of bytes out. So, an educated guess is something like:

OWbuffer VAR BYTE[8]           ;Array for outgoing data
 
'Assign values for sensor 1 to the array.
OWbuffer[0]= $26 : OWbuffer[1]= $7A
OWbuffer[2]= $BA : OWbuffer[3]= $11 
OWbuffer[4]= $01 : OWbuffer[5]= $00
OWbuffer[6]= $00 : OWbuffer[7]= $D8
 
GOSUB OWRoutine    'Send it
 
'Assign values for sensor 2 to the array.
OWbuffer[0]= $26 : OWbuffer[1]= $A7
OWbuffer[2]= $AB : OWbuffer[3]= $11
OWbuffer[4]= $10 : OWbuffer[5]= $00
OWbuffer[6]= $00 : OWbuffer[7]= $E8
 
GOSUB OWRoutine    'Send it
END
 
OWRoutine:
  OWOUT DataPin,1,[MatchRom, STR OWBuffer \8, ConvertV]
RETURN

This way you only have one "instance" of the OWOUT command which should save you a couple of words compared to having 26 of them (if that's what you currently have).

/Henrik.

[MOUNTAIN747]

Henrik,
thanks for the reply. I've tried String modifiers to send 1-wire and it doesn't work. I use String modifiers to recieve data and it works fine. It seems the method should work in both directions.

OWIN DataPin, 2, [STR DSbuffer\9 ] this work fine - recieve data from 1-Wire device

OWOUT DataPin, 1, [MatchRom, STR OWbuffer\8, ConverV] doesn't work - send 1-Wire
OWOUT DataPin, 1, [MatchRom, $26, $....... .......$D8, ConvertV] this works - send 1-Wire

I'm not sure if the PBP comand can handle the string not enclosed in brakets. I'll keep working with this and get back to you. Thanks agin.

[MOUNTAIN747]

OK, I got it. A small error in the method I was using to set up the 1-Wire command. The STR modifier works fine. This will save a lot of code space. Hanrik, thanks for your reply which make me work on the STR method until I got it right!

[HenrikOlsson]

Hi,
Great, I'm glad you got it going!

Another way might be to use the DATA statement to save the values for each sensor to onboard EEPROM and then use a FOR-NEXT loop to read them out and stuff them into the OWBuffer array. Depending on the number of sensor "strings" you have it probably save you even more code space - provided your chip has enough EEPROM space of course.

/Henrik.