• 2008-12-29 12:32:22     AD7877 doesn't work when setting bus_num=1

    2008-12-29 12:32:22     AD7877 doesn't work when setting bus_num=1

    Jimmy Dullaert (BELGIUM)

    Message: 67157   

    Hi,

    With the 2008r1.5 release the AD7877 doesn't  work when the AD7877 is set to bus_num=1. In release 2007 this does work correctly.

  • RE: AD7877-the S/W pointer is appearing away from point of cotact coordinates on touch panel?

    Hi Anoop,

    For me this looks like a tslib configuration problem.

    I guess you are using tslib, and utilize ts_calibrate tool.

    http://manpages.ubuntu.com/manpages/natty/man1/ts_calibrate.1.html

    This tool generates a calibration file that afterwards needs…

  • 2010-05-07 07:54:03     Events from AD7877 stops

    2010-05-07 07:54:03     Events from AD7877 stops

    Martin Jensby (DENMARK)

    Message: 89215   

    Hey

    Anyone that might be able to help with this little problem.

    We are using the GPIO4 on the AD7877 touch controller,

    The AD7877 driver have been modified as…

  • AD7877 Linux Driver Support.

    Hi ..

    we are using AD7877 as the touch screen controller IC in point of sale application;

    The processor is i.MX6SL; we have used the linux driver for AD7877 given in ADI website.

    We are observing few issue in the application-

    1. we are unable to…

  • 2008-02-08 18:05:39     ad7877 touchscreen with microwindows

    2008-02-08 18:05:39     ad7877 touchscreen with microwindows

    Bill Fassler (UNITED STATES)

    Message: 50864    I see on www.microwindows.org that there is some mention of adding

    touchscreen support as far back aas 2003. Although other than the nxcal (which…

  • 2007-08-23 17:14:03     where can I get a hold of the ad7877 touchscreen?

    2007-08-23 17:14:03     where can I get a hold of the ad7877 touchscreen?

    Bill Fassler (UNITED STATES)

    Message: 43342    This is mentioned in the docs, but it isn't listed on the "buy_stuff" page.  Is it readily available?

    Bill

    QuoteReply…

  • RE: Using the BF548 TouchScreen Driver Example

    Hi Yan,

    There are few things you need to take care of. Firstly, the x and y values returned by AD7877 callback are not real coordinates. You need to convert them to real coordinates. Secondly there is a flag called STOPACQ_FLAG_ID which need to be commented…

  • 2008-03-27 03:58:52     Using the gpio's on the AD7877? [SOLVED]

    2008-03-27 03:58:52     Using the gpio's on the AD7877? [SOLVED]

    Mark Urup (DENMARK)

    Message: 53102    I've looked through the datasheet of the ad7877 touchscreen chip, and it has four pins that can be used as gpio's.

    I would really like to…

  • 2010-02-09 02:53:24     AD7877 touchscreen driver

    2010-02-09 02:53:24     AD7877 touchscreen driver

    Peter Gombos (HUNGARY)

    Message: 85787   

    Hi,

    I work with the AD7877 touchscreen driver (with Hitachi TX09 LCD).

    If I press the touchscreen continuously sometimes I got touchscreen release event. I checked…

  • BF548 touch screen issues

    Are there any known problems/errata with the AD7877? I haven't spent much time but the touch screen demo is not working and any quick pointers would be helpful...

    Thanks in advance