MOD5441X 1-Wire Search ROM mode

Discussion to talk about software related topics only.
Post Reply
glenwinn
Posts: 1
Joined: Tue Sep 02, 2014 3:58 pm

MOD5441X 1-Wire Search ROM mode

Post by glenwinn »

Has anyone successfully written a routine that uses the 1-Wire Search ROM Accelerator mode in the MOD5441X? The documentation does not specify how to do it and I haven't be able to figure it out.
mbrown
Posts: 61
Joined: Tue Jan 29, 2013 7:12 pm

Re: MOD5441X 1-Wire Search ROM mode

Post by mbrown »

I'll agree the documentation in the reference manual is a little sparse on this mode. According to 36.4.1.4, it looks like you'd reset the bus, issue the search ROM command (0xF0) and set the SRA bit... but what the advanced searching is supposed to do I honestly have no idea.

I don't know that any one of us knows everything about the one-wire bus, and looking at the documentation from the 5441x platform, they lean on maxim's documentation for 1-wire. This is their app note on the search algorithm, http://www.maximintegrated.com/en/app-n ... mvp/id/187. I'd take a look at that and start there.

If that kind of searching isn't what you're trying to do, what are you trying to do?
Post Reply