On Wed, Oct 6, 2010 at 5:33 PM, Paul Schwarz <[email protected]>wrote:
> Hi Group, > > I pose the following dilemma and look forward to enthusiastic discussions. > > As mentioned in a previous e-mail to you'll, we have developed an embedded > PC with a touch screen. This device runs on a RMI, Alchemy processor > (AU1250) and its touch screen is connected to this CPU via an ADS7843 chip > and through the SPI bus. So far so good and pretty standard. The system > originally ran on WinCE5.0 (Booooo!) and we are currently porting it to > Linux. > Which Linux distribution you are using ?Have to added the Driver properly? I guess ad7843 is Ti's Chipset and it's driver is freely available for download. > Now the problem that we are facing is that after the first 3-4 touch > events, > no more touch events are recorded after that and the sensitivity of the > clicks is very weak. Lastly, when the screen is touched while a video is > playing the video and audio pause for the duration of the touch. > > How you are testing these (Touch Events), Are you trying with any standalone application or with the Operating System features ? Which tool you are using for the Calibration of TS. One of the reasons for why we are having problems with the screen's > response, could be that the aforementioned SPI connection is multiplexed > (74CBELV3257) with an on-board battery and RTC (DS1339) - see page 9 of the > attached schematics. > You cant send the files as attachment here.So provide some other source for reviewing the schematics. > > > > -- Siji Sunny Net4uonline Pvt.Ltd Mumbai -- http://mm.glug-bom.org/mailman/listinfo/linuxers
