FAQs

How do I sign with an STU-540 tablet operating in serial mode?

How do I sign with an STU-540 tablet which is operating serially?

The STU-540 can be configured with images ready for immediate display. This avoids the delay sending the image to the STU-540 every time a signature is captured.

See below for instructions to achieve this, with reference to these pages:

• STU Serial Connection
• STU-540 Operating Modes

Solution

1. Upload images to the STU-540

This is a one-time operation to predefine the images in the STU-540 non-volatile memory.
The procedure is as follows:

1. Check that the STU-540 is in HID (non-serial) mode. (see Verify HID Mode below)
    

2. Go to Start -> Wacom Signature SDK -> Signature Mode Image Uploader (starts: C:\Program Files (x86)\Common Files\WacomGSS\wgssStuImgUploader.exe)

3. Modify as required or keep the defaults.
    

4. Select:

   • Tablets...Upload current screen (as the STU-540 is updated the signature capture screen will be displayed)
   • File...Save As (save the configuration file for later use, e.g. save to file C:\config\STU-540.config)

2. Set the STU-540 to serial mode

See Switch to Serial Mode below

3. Configure the Signature SDK

Set the following registry values:

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Florentis\sd

Set these registry values using the correct COM port and configuration filename:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Florentis\sd]
"stuPort"="COM5"
"stuSigModeConfig"="c:\\\\config\\\\STU-540.config,1"
"stuBaudRate"=dword:0001f400

4. Test Signature Capture

• Start sign pro PDF
• Select Help... Tablet Diagnostics
• The menu option will immediately start signature capture.

If you are unable to capture a signature, check the registry settings and verify that the STU-540 is in serial mode.

1. Verify HID Mode

Run the command:

C:\serial-samples>query.exe
STU query sample

Device: 056a:00a8:0103
Status.statusCode                         = Ready
Status.lastResultCode                     = None
Status.statusWord                         = 00

When query displays the STU information a USB connection has been made.

If the device is in serial mode the result will be:

C:\serial-samples>query.exe
STU query sample

No USB devices found

2. Verify Serial Mode

Run the command:

C:\serial-samples>getSerialPorts.exe
COM5  virtual
COM1  physical

The result shows the virtual port connected to the STU.

Run the command, substituting the correct com number (com5 in this example):
 

C:\serial-samples>query.exe com5 128000
STU query sample

connecting to com5  128000
Status.statusCode                         = Ready
Status.lastResultCode                     = None
Status.statusWord                         = 00
HidInformation                            = 056a:00a8:0103

3. Switch to Serial Mode

Verify that the STU-540 is in HID mode, see Verify HID Mode

Run the command:

C:\serial-samples>hid2serial.exe
STU HID2serial sample

Device: 056a:00a8:0103
Status.statusCode                       = 0
Status.lastResultCode                   = 0
Status.statusWord                       = 00
Information.modelName                   = STU-540
Information.firmwareMajorVersion        = 01
Information.firmwareMinorVersion        = 03
Information.secureIc                    = 0
Information.secureVersion               = 0.0.0.0
setDefaultMode()...
Done!
Status.statusCode                       = 0
Status.lastResultCode                   = 0
Status.statusWord                       = 00
Rebooting device

4. Switch to HID Mode

Verify that the STU-540 is in Serial mode, see Verify Serial Mode

Run the command, substituting the correct com number (com5 in this example):  

C:\serial-samples>getSerialPorts.exe
COM5  virtual
COM1  physical

C:\serial-samples>serial2hid.exe com5 128000
serial to hid STU query sample
serial2hid serialPort baudRate

Information.modelName                   = STU-540
Information.firmwareMajorVersion        = 01
Information.firmwareMinorVersion        = 03