Hello Eugen,

E>>i have a problem i am using 3 ds18b20 and if i use a 8mhz crystal and use DEFINE OSC 8 it dosent work but if i change DEFINE OSC 8 to DEFINE OSC 16 then it works. can i slow down the owin and owout? i am using 3*15 meter cat5 cabel this is the program or what sould i do?<<

My knowledge has not been in this area, but one BIG question would rise in my head...

Baudrate... is the Baudrate accurate and stable at OSC 8 at the speed you are going? OSC 8 may be too slow to use a baud that will produce a guaranteed stable communication. Its like attempting to use 9600 baude with a 4mhz Crystal...Flakey, if not worthless.

Dwayne