-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Somebody in the thread at some point said:
|> Either disabling one interrupt or having them both issue the same is a |> valid solution to A5 situation. On A6, we removed the pullup and have |> the one interrupt drive push-pull. | | It's not clear to me that 'disabling' is an option. | The closest seems to be a setting called "GND" which presumably ties | the line to Ground. Seeing the interrupt is active-low, that would be | permanently asserted? You can select it to drive a source that is disabled from ever happening, obviously it's simpler to just get them to drive the same source in lockstep. | For wake-from-suspend we cannot do any tricks with polling. We have | to choose between wake-on-WUP_FF, or wake-on-CLICK. | Fortunately there are two accelerometers so we can get all the | functionality we are likely to want: Well, there is one more version-and-cpu-related quirk. On GTA02 A5, the INT1+INT2 net for the second accelerometer ends up on EINT16 / GPG8. Unfortunately on S3C2442, only EINT0-15 are usable as wake sources. On GTA02 A6+, we tried to fix this by bringing a copy of this interrupt signal to EINT8 / GPG0 which is a wake source. But, we stuck R1547 in the way which is marked as NC on the schematic version I am looking at. ~ Presumably it really isn't fitted breaking this fix. So only one accelerometer works for wake. | When the CPU is running we could take the same approach. Or we could | conceivably program WUP_FF_2 to have the same threshold as the first | click threshold. Then when it fires, set a timer for an appropriate | duration and poll the 'click' status after that duration. | It might not be worth the effort though. Not sure if or how the highpass filter can fit in there to allow threshold to wake on tap or shake. - -Andy -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkm3ZicACgkQOjLpvpq7dMpEdwCfUzh2y8Kx63Kpm9hOnDOIoPko /l0An3kNZkN5MtlcW4qV0qZSw/498zxH =gnIV -----END PGP SIGNATURE-----
