View source for 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

{| class="wikitable"
|+
!Smart LCD resolutions
!No. of background picture
|-
|800x600
|~270
|-
|800X480
|~330
|-
|480X272
|~1000
|}

=== What kind of image can be use in the SGTools? ===
<u>Background Image</u>

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

<u>Icons</u>

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

<u>Animations</u>

* 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

[[File:Unlock usb drive.png]]

=== 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

[[File:Format usb drive.png]]

=== 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

[[File:Screen saver mode.png]]

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? ===
<u>Install RTC battery</u>

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

<u>RTC Mode Setting</u>

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

[[File:RTC mode.png]]

* RTC Mode as follow

{| class="wikitable"
|+
!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? ===
<u>Power-on Calibration</u>

* 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

<u>Command Calibration</u>

* 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? ===
<u>Integer Value (VP_N16, VP_N32, VP_N64)</u>

* 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.
{| class="wikitable"
|+
!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

<u>Floating Value (VP_N32)</u>

* 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? ===
<u>Real Time Properties Control</u>

* 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? ===
<u>By Project setting</u>

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

[[File:SGT Project Baud Rate.png|223x223px]]

* default is115200 baud per second

<u>By Command</u>

* 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? ===
<u>Physical Connections</u>

* 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
|}
<u>Signal Levels</u>

* 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)

<u>Byte Packet Config</u>

* 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? ===
<u>RTS signal</u>

* 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