FAQ-01

General

What is SGTools?

• SGTools is an UI development software dedicated for TOPWAY Smart LCD.
• SGTools is an upgraded version over the previous RGTools.
• It supports all the Smart LCD with resistive touch or capacitive touch.

How many background image can be store in to Smart LCD?

• Most of the Smart LCD is having 256Mbyte Flash (vary by model) in the Smart LCD
• The no. of background image can be preload is depends on the display resolutions (vary by model)
• The Smart LCD is showing the interface by PAGE and pages can share the same background image
• The maximum no. of PAGE is up to 1000
• It should be good enough for most of the UI design

Smart LCD resolutions	No. of background picture
800x600	~270
800X480	~330
480X272	~1000

What kind of image can be use in the SGTools?

Background Image

• Recommend 24bit BMP
• Recommend matched resolution image
• SGTools will resize the un-matched resolution to fit the screen

Icons

• Recommend 24bit BMP
• Limit to 1/4 of the Smart LCD display resolutions

Animations

• Recommend 24bit BMP, Animated GIF supported
• Limit to 1/4 of the Smart LCD display resolutions

USB issue during display project download

Power off Smart LCD

• Ensure the Smart LCD is totally power off
• Disconnect the power supply cable of the Smart LCD

Cable issue

• Use a good quality USB cable
• Ensure USB power supply(500mA/5V USB supply)
• A dual USB-A to micro-USB cable, may help in some case

PC USB terminal

• Try another the USB terminal
• Connect to the PC motherboard directly (back side of the is better than the front)

Smart LCD cannot be recognized by PC…

Smart LCD USB access locked

• In case no USB device found on the PC (Smart LCD connected), it is possible than the Smart LCD USB access locked
• Connect the RS-232 terminal to the PCB
• In TOPWAY Command Tools, use the “Unlock USB drive” command with the correct password to unlock the USB access

Smart LCD USB access locked (forgot password)

• In case no USB device found on the PC (Smart LCD connected), it is possible the Smart LCD USB access locked
• Connect the RS-232 terminal to the PCB
• In TOPWAY Command Tools, use the “Format USB drive” command to format the USB drive and the USB access will be unlock at the same time

Abnormal USB drive found

• In case no USB device found on the PC (Smart LCD connected), it is possible the Smart LCD USB drive was corrupted during previous download
• Use PC format tools to format the drive with FAT32 filesystem

Display Project Configuration

How to config the screen saver?

• To Set the Screen Saver Mode...

• The Screen Saver Mode can be config in the SGTools Menu ⇒ Tools ⇒ Project Setting

Note. Dim down backlight can further extend the backlight LEDs life.

How to wake up form screen saver?

• To Wake-up form Screen Saver...
• Anywhere on screen being touched
• A page jump command received
• A data on screen was updated

How to shorten the power up “Starting RTC” time?

Install RTC battery

• Operate with RTC battery installed can shorten the power up time

RTC Mode Setting

• The RTC mode can be config in the SGTools Menu ⇒ Tools ⇒ Project Setting

• RTC Mode as follow

RTC Mode	Operating with RTC battery	Operating without RTC battery	Descriptions
Enable	1st power up takes 6s; next power up takes 1s	every power up takes 6s	RTC run with correct init
Disable	every power up takes 1s	every power up takes 1s	RTC stop
Engineering Mode	every power up takes 1s	every power up takes 1s	RTC run without init RTC might not run correctly NOT suggest for production setting

UI Elements and Functions

How to calibrate the resistive touch panel?

Power-on Calibration

• Touch and hold the top-right corner of the RTP
• Power on the Smart LCD
• The display will enter the calibrate mode
• Touch the cross on screen to do the calibration

Command Calibration

• Power on the Smart LCD
• Use a E4 command to enter the calibration mode (AA E4 55 AA 5A A5 CC 33 C3 3C)
• The display will enter the calibrate mode
• Touch the cross on screen to do the calibration

How to show Value with decimal point?

Integer Value (VP_N16, VP_N32, VP_N64)

• Data Type can be Signed or Un-signed
• Config the Integer Digits and Decimal Digits in the Number elements
• It will show integers with decimal point.

VP's value(10's)	Interger Digits	Decimal Digits	Display Result
15	Auto	3	0.015
23762	Auto	3	23.782
5629	5	1	00562.9
-87913	3	2	-879.13
-13277	2	2	-99.99
1758	3	0	999

Note. Over range value will show its max value

Floating Value (VP_N32)

• Data Type should be Floating Value
• Float type value is suggested to select: Integer Digits=Auto, Decimal Digits=1~9. to prevent over maximum value presentation error

Note. Float type value might rounded or truncated due to hex-dec conversion

How to hide an element in page?

Real Time Properties Control

• Enable VP is can be use to hide an element in page
• Enable VP is none by default (element operate normally)
• It can assign a VP address (VP_N16, VP_N32, VP_N64) to it as its Enable control register
• The VP value set to 1 as enable at power-on.
• It can be disabled (hidden) by a zero value

How to display Chinese Char?

• Smart LCD support GB2312, GBK, BIG5
• GB2312 support the most command 6763 simplified Chinese
• Select a Chinese Font Char set in the String ElementConfig a VP_STR with it
• Send a GB code string to the VP_STR to display it on screen

Note. It can generate custom font in SGTools (Menu ⇒ Tools ⇒ Font Setting ⇒ Font Config <2>)

Communications

How to config the terminal buadrate?

By Project setting

• The terminal baudrate can be config in the SGTools (Menu ⇒ Tools ⇒ Project Setting)

• default is115200 baud per second

By Command

• It is also possible to change the baudrate by using command.
• Use a E0 command to set sys config (AA E0 55 AA 5A A5 07 83 00 CC 33 C3 3C)
• Baud rate will back to project setting after next power on

How to resolve communication issue?

Physical Connections

• Check the terminal connections cable
• Ensure the GND is connection
• Confirm the cross wiring (Tx to Rx )

Smart LCD TX ⇒ PC Rx

Smart LCD Rx ⇐ PC Tx

Smart LCD RTS ⇒ PC CTS

Signal Levels

• Check the terminal signal of the Smart LCD
• There are three kind of Smart LCD terminal (depends on model) UART (3.3V) / RS-232C (±12V) / RS-485 (3.3V)
• The host and the Smart LCD must be have the same signal levels
• Only Smart LCD with RS-232C can interface to PC RS-232C signal(±12V)

Byte Packet Config

• Check the baud rate (115200 by default)
• Check the no. of bit, parity and stop bit (8N1 by default)
• All the command are in hex/binary (NOT ASCII)

What is the function of terminal RTS signal?

RTS signal

• RTS is an output signal of the Smart LCD, working like a busy signal
• It will be set, while the Smart LCD input buffer full When RTS set, host should stop sending data/command to prevent data/command lost
• As Smart LCD is having 32kbyte (various by model) input buffer
• In most of the case, it may not necessary to use RTS signal