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串口触摸屏初始化时频繁触控panel导致触控失效

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Randy

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Feb 10, 2007, 8:06:24 PM2/10/07
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小弟的公司使用串口触摸屏，当wince系统启动过程中，触摸屏驱动会向触摸屏控制ic发送信息，读取控制ic的硬件信息，如果此时读取的信息有误，触
摸屏就会失效。但是我们测试发现，如果在启动过程中频繁点击触摸屏，触摸屏信息会和控制器芯片反馈回来的正确id信息混合，导致驱动验证信息失效。所以
想问问论坛的高手们，有没有办法可以从串口驱动程序这面解决这个问题，另外触摸屏驱动程序厂家已经针对这个问题更改了两个星期都没有什么进展，我们对他
们已经不抱什么希望了。

ZhouShaohui

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Mar 20, 2007, 11:01:10 PM3/20/07
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触摸屏信息会和控制器芯片反馈回来的信息应该可以从数据包上区分的吧，怎么会混呢。

"Randy" <rand...@yahoo.com> 写入消息新闻:1171155984.8...@p10g2000cwp.googlegroups.com...

dangx...@126.com

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Mar 26, 2007, 10:33:58 PM3/26/07
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应该从软件上把 两种信息分开来,避免同时操作!
On 10 Feb 2007 17:06:24 -0800
"Randy" <rand...@yahoo.com> wrote:


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<dangx...@126.com>

dangx...@126.com

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Mar 26, 2007, 10:37:44 PM3/26/07
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应该分开来处理吧!在获得正确ID信息之前不允许触摸屏生效!

On 10 Feb 2007 17:06:24 -0800
"Randy" <rand...@yahoo.com> wrote:


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<dangx...@126.com>

Dang, Forward

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Mar 26, 2007, 10:42:18 PM3/26/07
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应该分开来处理吧!在获得正确ID信息之前不允许触摸屏生效!

On 10 Feb 2007 17:06:24 -0800
"Randy" <rand...@yahoo.com> wrote:


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<dangx...@126.com>

Zebra

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Apr 21, 2007, 5:47:29 AM4/21/07
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In general, the simple way is to delay your driver to get any information
from the touch controller until your OS boots ready, then reset the serial
port and start to get the data from touch controller.

We use this method to avoid a lot of problem when OS is booting and user
touched the touch film.

-Zebra,
eMVP
Techware

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