The Touchscreen does not react

Error:

The Input LED displays entries at the touch but the cursor does not react.

Possible Causes:

1. BIOS settings regarding onboard interfaces have changed ( buffer battery empty?)
   
2. Configuration of interfaces in operating system is flawed
   
3. The touchscreen driver ist set up incorrectly
   

Correction:

1. BIOS:

noax IPCs use either one (serie P4/P5) or two (serie P6) of the four onboard interfaces for internal purposes.

The touchscreen communicates with the IPC via the interface referred to as COM4 in BIOS. The serial interfaces should be set up as follows in BIOS:

1. COM1: Address 3F8 / Interrupt 4
2. COM2: Address 2F8 / Interrupt 3
3. COM3: Address 3E8 / Interrupt 11
4. COM4: Address 2E8 / Interrupt 10

If the CMOS clock was also reset, this is likely caused by a faulty clock battery. In this case, please apply to the noax Service Department.

2. Operating System

The settings of all Com Ports in the operating system should correspond to the settings in BIOS.

Please remember that if COM ports in BIOS have been set to "disabled", the numbering in the operating system may shift as the "missing" ports are "filled" with the nearest higher ones. If for example COM2 is disabled in BIOS, under some circumstande, e.g. under Windows 2000, the BIOS-COM3 may shift to COM2 and the BIOS-COM4 to COM3 !! In this case, an allocation is only possible through a comparison of assigned resources.

The touchscreen driver communicates with the hardware via (BIOS-)COM4 with 9600 baud (bps) , 8 data bits, 1 stop bit and no parity (8,n,1).

The protocol for transmission with the touch controller is SC3 - serial .

Note:

Starting with touch driver V. 3.05.18, these values can be subsequently altered in the driver configuration, too. If an earlier version of the driver with flawed values was installed which does not work due to this, the installation has to be repeated, and during this process the correct values for protocol and COM port according to the enclosed documentation have to be entered.