One wire protocol an exercise

Below the test setup with my new digimess 25Mhz scoop:

After exploring the the basic functionality I wrote my first program. It is an implementation of the Dallas one wire protocol without the possibility to read from the slave. On the picture below you can see a scoop capture. I will need the protocol in my final project so this exercise was worth to do. This protocol is defined in one of my publications and can be found on this link:

http://sites.google.com/site/guyvo67/

(LOWBP.PDF)

We also changed the type of IC for master into ATMEGA644 because this one can be mounted on a DIL feet and is easy to replace instead of using a SMD like one. The development kit drawings are almost finished so I expect it ready for half of December. In the next blog I present the development kit layout.