2008-12-29 12:32:22 AD7877 doesn't work when setting bus_num=1
Jimmy Dullaert (BELGIUM)
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.
For me this looks like a tslib configuration problem.
I guess you are using tslib, and utilize ts_calibrate tool.
This tool generates a calibration file that afterwards needs…
2010-05-07 07:54:03 Events from AD7877 stops
Martin Jensby (DENMARK)
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…
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
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?
Message: 43342 This is mentioned in the docs, but it isn't listed on the "buy_stuff" page. Is it readily available?
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]
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
Peter Gombos (HUNGARY)
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…
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