"System UI stopped" using TouchScreen 4.3"

[eduardo.andrade]

Hi,

I'm trying to use a LCD 4.3" with resistive Touch Screen Panel.

I changed the LCD configuration on .fex file and it's working very well.
The configuration of ctp_para was disabled, and the rtp_para enabled.

Code Select Expand


[ctp_para]
ctp_used            = 0

[rtp_para]
rtp_used = 1
rtp_screen_size = 5
rtp_regidity_level = 5
rtp_press_threshold_enable = 0
rtp_press_threshold = 0x1f40
rtp_sensitive_level = 0xf
rtp_exchange_x_y_flag = 0



However when I connect the TS pins, the system give me the error: "SystemUI stopped"
I can even click on the OK button of the message, but the error occurs again and again.

If any pin (X+, X-, Y+ or Y-) is disconnected, the error doesn't appear anymore.


I think its something similar to:
https://www.olimex.com/forum/index.php?topic=2897.msg12095#msg12095


But I don't know from where to start to solve this problem.

Can anyone tell me any tip, or any other documentation that could help?

Thanks