Fun project- I didn't even realize this was possible with non-realtime Linux. Apparently you can turn off all interrupts for awhile on the Pi without bad effect other than the system being unresponsive. Probably date/time clock gets slow (?)
Fun project- I didn't even realize this was possible with non-realtime Linux. Apparently you can turn off all interrupts for awhile on the Pi without bad effect other than the system being unresponsive. Probably date/time clock gets slow (?)
Hah, what a totally excellent Pi project! 
Of course one wouldn't do it that way if the goal were to develop a serious logic analyzer, but what's important about rgh's demonstration is that it's sure to inspire many other projects based on no-hardware sampling or timing. And for an interesting range of simple tasks, his project may even end up producing a satisfactory tool.
It's great to see people go outside the envelope, just because they can!
Morgaine.
Great - proper software with the OS in it's proper place (shut down for a while) 
And just imagine what the same attitude might achieve with access to ALL of the chip !
Michael Kellett
Oh we're in the realms of serious heresy there, no doubt about it.
Half the LKML peeps probably threw themselves off bridges the instant that the news came in. 
Oh we're in the realms of serious heresy there, no doubt about it.
Half the LKML peeps probably threw themselves off bridges the instant that the news came in.
