On 14.04.2009 00:06, Joerg Reisenweber wrote: > Am Mo 13. April 2009 schrieb morphis: >> On 09.04.2009 06:25, Nelson Castillo wrote: >>> On Wed, Apr 8, 2009 at 11:16 AM, Nelson Castillo >>> <[email protected]> wrote: >>> (cut) >>>>> Sorry I forgot to add the link. Here it is: >>>>> > http://git.gnufiish.org/?p=gnufiish.git;a=blob;f=arch/arm/mach-s3c2440/mach-glofiish.c;h=bdf4d1e2d235a47ddc0c282d33fd7df1fa94036a;hb=HEAD >>> >>> BTW, I'm working on this code now and I had trouble with "delay". Thus >>> I checked yours to see what you were using. >>> >>> 376 .delay = 10000, >>> 377 .presc = 50000000 / 1000000, /* 50 MHz PCLK / 1MHz */ >>> 378 //.presc = 0xff, /* slow as we can go */ >>> >>> You might want to use the original .presc until you get the TS to work >>> the first time... I tested with the values you have and the TS >>> wouldn't work for me. >> >> Ok, I merged with current andy-tracking to get a current ts filter chain >> but it is still the result. I produced a little example for the current >> problem with touch_test.py. I only pressed my finger on one point of the >> screen. The app reports: >> Move: (352, 242) >> Down: (352, 242) >> Move: (380, 253) >> Move: (394, 257) >> Move: (409, 268) >> Move: (420, 284) >> Move: (426, 291) >> Move: (429, 295) >> Move: (430, 298) >> Move: (433, 301) >> Move: (433, 302) >> Move: (434, 302) >> Move: (434, 303) >> Move: (433, 303) >> Move: (434, 303) >> Move: (433, 303) >> Move: (436, 304) >> Move: (435, 304) >> Move: (434, 304) >> Move: (433, 304) >> Move: (430, 304) >> Move: (431, 304) >> Move: (434, 304) >> Move: (433, 304) >> Move: (434, 304) >> Move: (435, 303) >> Move: (436, 303) >> Move: (434, 300) >> Move: (430, 292) >> Up: (430, 292) >> >> So the cursor moves up to top left corner while I am press one point of >> the screen. Any hints which calibration of the filters is wrong? >> >> > As your finger doesn't create a point of contact on ts, but rather a quite > large area, this dump looks quite smooth and reasonable. > Before complaining about performance of a particular subsystem, it's > mandatory > to learn basics about it's operation principles. > > /j >
Sorry, I don't complain about the performance of any particular subsystem. I know about the fact that I don't get exactly one point for one touch with my finger on the ts. The problem is I am not very familiar with this stuff. It is my first time.
