In message <3C7AA49D.8020809 at embeddededge.com> you wrote: > > memory spaces. A common mistake is people map things like GPIO into > application space, and then think they can atomically update the > registers. This doesnt' work because there may be drivers that > also do the same thing.
...and things get even worse when you happen to use the RISC timers for one or more PWM channels: you'll see completely asynchronous updates of PBDAT :-( Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de "Engineering without management is art." - Jeff Johnson ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
