vpd
- Following 0 users
- Followed by 0 users
- Votes 0
- Subscriptions 2
Activity overview
Latest activity by vpd-
vpd commented,
I want to rise the problem again. Now I have a NHD-7.0-800480EF-ATXL-CTP that had been working inside our testbench for several months and now it's touch suddenly stopped functioning. I want to und...
-
vpd commented,
We used this driver:http://lxr.free-electrons.com/source/drivers/input/touchscreen/edt-ft5x06.c?v=3.12
-
vpd commented,
Michael,Ops! Sorry, that was a graceful explanation but it's not true I made a conclusion comparing two different timings but once programmers added delays on ARM linux nothing actually changed.B...
-
vpd commented,
Michael,It seems we found a reason of the strange behavior. The problem is how fast I2C host goes to reading stage of I2C transfer after finishing its write state. FocalTech chip in 4.3" display is...
-
vpd commented,
To say trouth, the marking on PCB is as follows:1) 4.3" - WAKE2) 7" - RSTHowever, i see /WAKE signal in both datasheets. That's why I was confused.Ok, we will try to issue a reset to wake signal. A...
-
vpd commented,
Michael,Unfortunately, the WAKE signal is poorly documented. As I could understand, it is either interrupt to Touch MCU or just a reset. It is called /WAKE in datasheet but actually on the ribbon p...
-
vpd commented,
Michael,1) We use the same code to work with both displays. As you understand this code is either linux or u-boot (based on the same linux) i2c bus framework that has been testing for many years.2)...
-
vpd commented,
We have three displays with the same behavior.We tried to write to mode register hoping that it will hear and exit test mode but that didn't help.
-
vpd commented,
Michael,We could set up 7" sensivity and now it works with 4 mm glass cover. However, for this case threshold is too close to sensor noise margin. Spontaneous cursor movement can be seen with a thr...
-
vpd created a post,
Capacitive touch problems under linux (FT5x06)
Hi,now we are prototyping couple of devices using TI AM3358 Starter Kit. (http://www.ti.com/tool/tmdssk3358)Original kit goes with resistive touch but we purchased couple of displays with capacitiv...