Pull-up resistors's problem

[drizzle]

hi

Some materials said that we cansolve the bus'es stuck at fault problem by putting pull-up resistors on bus
why?
and also the practise can deal with the bus'es low power too.
why?

anyone can explain it for me?


thanks

drizzle

 

[drizzle]

Am i describe it clearly?

Why nobody suggests some advices?

 

[seanwu]

I dont agree with the issue. Probably it is true in special case.