May 23, 2005 #1 E etrobin Member level 1 Joined Feb 25, 2002 Messages 34 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 206 Dear all, Anyone show me how to control touch panel by FPGA or uP ??? Or where I can get detail info. about that ?? Thank you for reply regards, etrobin
Dear all, Anyone show me how to control touch panel by FPGA or uP ??? Or where I can get detail info. about that ?? Thank you for reply regards, etrobin
Jun 11, 2005 #2 W waterloo Newbie level 6 Joined Mar 13, 2003 Messages 14 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 125 you could look at TI's ADS7843 to see what's inside the touch screen IC. That's analog stuff, not suitable for FPGA.
you could look at TI's ADS7843 to see what's inside the touch screen IC. That's analog stuff, not suitable for FPGA.
Jun 11, 2005 #3 FoxyRick Advanced Member level 4 Joined Jan 8, 2004 Messages 1,249 Helped 321 Reputation 640 Reaction score 277 Trophy points 1,373 Location England, UK Activity points 12,979 The main methods for touch screens are resistive and capacitive. They are *definately* analogue systems. If you want info on capacitive touchscreen systems, try here: **broken link removed** They have some good technical docs on the theory. or here for ELO systems: **broken link removed** Cheers, Foxyrick
The main methods for touch screens are resistive and capacitive. They are *definately* analogue systems. If you want info on capacitive touchscreen systems, try here: **broken link removed** They have some good technical docs on the theory. or here for ELO systems: **broken link removed** Cheers, Foxyrick