andy at openmoko.com
Fri Aug 29 10:17:19 CEST 2008
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Somebody in the thread at some point said:
| On Thu, Aug 28, 2008 at 12:29:22AM +0800, matt_hsu wrote:
|> Michael 'Mickey' Lauer wrote:
|>> Am Mittwoch 27 August 2008 17:43:45 schrieb Andy Green:
|>>> What I did was change the timer used in the resource for fiq on 2.6.27
|>>> and it seemed to be OK then. We don't use the PWM for LEDs due to
|> IIRC, we don't use PWM to drive LED due to suspend/resume. Since PWM
|> logic becomes odd after resuming.
|> In consequence, LEDs can't be blinking anymore after resuming. I sent
|> the patch to fix the PWM issue.
|> It should be worked if we use PWM for LEDs
| please also consider PWM for the vibrator. the vibrator is not
| strong in GTA02 than it did in GTA01. This is probably due to the
fact that it
| now runs on Vbatt rather than IO_3V3 (i thought it is just not good to
| high-current consumer like an electrical motor off a digital power lane).
| However, the higher voltage (it is within spec of the vibrator) seems
to make the
| vibration less powerful. I suspect it is moving too fast to resonate.
| Having PWM on the vibrator would allow us to try to optimize the
| for maximum vibration.
We should have "PWM" on there Harald by FIQ, it should be similar
functionality as hardware PWM.
It should respond to
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