RogerTango
Senior Member
Ive been looking at the I2C bus, and am getting ready to experiment with it some. Looks like it would be a lot better than serial coms so far.
However, I have a question...
Lest say I have these devices:
Master 1
Slave 1
Slave 2
Slave 3
Now, I know the masters talk to the slaves, but the slaves also talk to the master?
I know the slaves cannot talk to each other.
Lest say Master 1 wants to ask the temp from Slave 1, Slave 1 can respond to the master with the value, correct?
Then Master 1 wants to ask the time of day from Slave 2, then Slave 2 can respond with the information, correct?
All this on a 2 wire system seams very attractive, I just wanted to know that my understanding was correct.
It appears the slave cannot just call the master with new information, the master would have to poll the slave. All this is fine by me.
I am wanting to do a Picaxe I2C LCD interface too....
Oh, I just thought of another question... Can 2 masters reside on the same bus???
Thanks for your patience in reading my FNG post.
Andrew
However, I have a question...
Lest say I have these devices:
Master 1
Slave 1
Slave 2
Slave 3
Now, I know the masters talk to the slaves, but the slaves also talk to the master?
I know the slaves cannot talk to each other.
Lest say Master 1 wants to ask the temp from Slave 1, Slave 1 can respond to the master with the value, correct?
Then Master 1 wants to ask the time of day from Slave 2, then Slave 2 can respond with the information, correct?
All this on a 2 wire system seams very attractive, I just wanted to know that my understanding was correct.
It appears the slave cannot just call the master with new information, the master would have to poll the slave. All this is fine by me.
I am wanting to do a Picaxe I2C LCD interface too....
Oh, I just thought of another question... Can 2 masters reside on the same bus???
Thanks for your patience in reading my FNG post.
Andrew