Re: One Question about WM9712 touch screen interrupt (windows mobile and PXA270)
- From: "K. S. Huang" <ksh_AT_bsquare_DOT_com>
- Date: Wed, 27 Dec 2006 12:06:49 +0800
At first, you should make sure your interrupt route to IRQ or PenDown signal
from the WM9712.
For PenDown signel the signale will be asserted whenever you touch down the
screen and
For IRQ mode you will need to write 0x0 to WM97_GPIO_PIN_STATUS(0x54) to
clear the IRQ status.
<black02@xxxxxxx> ׫??ì¶à]¼þÐÂÂ?:1167145429.252357.133240@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
I had initialized and configured the WM9712 codec for touch screen.
When I hit the screen first time, it will make a interrupt from WM9712.
After that, there are not any interrupt generated. I know I need clear
the interrupt in the ISR. But I'm not familiar with the WM9712. What
should I do in the ISR for clear interrupt and prepore for the next
interrupt?
Thanks!!
.
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