UTTP-WF57-WF70-EX01

2014
UTTP-WF57-WF70-EX01
WF57 and WF70
executive board
Features


Allows to develop applications with
Winstar WF57Q, WF70Q, WF57E and
WF70A series TFTs.
Allows to test 5.7” and 7.0” Winstar
and AMT Capacitive touch panels.
Description
The WF57 and WF70 executive board
helps to familiarize to Winstar 5.7” and
7.0” TFT displays to develop your
application. WF57 and WF70 executive
board is a part of Unisystem TFT Test
Platform.
unisystem.pl
2014-02-27
Datasheet
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UTTP-WF57-WF70-EX01
1. Detailed description
WF57 and WF70 executive board allows to develop user’s applications with Unisystem TFT Test
Platform (UTTP). WF57E display should be connected to 32 pin CN10 ZIF connector. WF70A display
should be connected to 32 pin CN12 ZIF connector. WF57Q and WF70Q TFTs has 36 pin user
interface connector and should be connected to CN5.
WF57E and WF70A displays required external current source to power backlight LEDs. Unisystem TFT
Test Platform (UTTP) has LED driver on board. Connect backlight cable to CN1 or CN2 (depend on
display type), and set current value by setting jumper on CN3. WF57Q and WF70Q display has built-in
LED backlight driver. This means from the user point of view backlight control task refers to control
PWM pin.
Executive board is designed for TFT displays with mounting frame. There are mounting holes on the
board which allows to mount TFT.
CN4 is used to connect executive board to main board of UTTP. On CN11 and CN13 SPI and I2C
interface pins and GPIO pins are available. Two of GPIO signals are able to be set as ADC input
signals. It enables to extend UTTP capabilities and build user’s application.
U1 is STMPE610 controller for resistive touch panels (RTP). In case of WF57E TFT display resistive
touch panel should be connected to CN7. In case of WF70A TFT display resistive touch panel should
be connected to CN6.
It is also possible to connect capacitive touch panels (CTP) to the executive board. CN9 and CN14
allows to connect AMT CTP. CN8 and CN15 allows to connect Winstar CTP.
2. Pin configuration
CN10 is a ZIF (zero insertion force) connector used to connect 32 pin (0.5mm pitch) FFC from WF57E
TFT display. General pin description is shown in Table 1.
Table 1. CN1 pin configuration
Pin no
Symbol
Name and function
1
2
3
4
5
6
7-22
23
24
25
26
27
28
29-32
GND
VDD
NC
D/C
WR
RD
DB0 – DB15
NC
NC
CS
RESET
RL
UD
NC
Ground
Power supply
Not connected
Data/Command select
Write strobe signal
Read strobe signal
Data Bus
Not connected
Not connected
Chip select
Hardware reset
Scan direction
Scan direction
Not connected
Note: In table 1 is general description of 5.7” Winstar TFT display. Refer to the specified TFT
datasheet for more details.
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UTTP-WF57-WF70-EX01
CN12 is used to connect 32 pin (0.5mm pitch) FFC from TFT WF70A series display. General pin
description is shown in Table 2.
Table 2. CN12 pin configuration
Pin no
Symbol
Name and function
1
2
3-18
19
20
21
22
23
24
25-30
31
32
VDD
VDD
DB0-DB15
CS
RS
E
R/W
NC
RST
NC
GND
GND
Power supply
Power supply
Backlight control signal
Chip select
Register select
Enable
Read/Write
Not connected
Hardware reset
Not connected
Ground
Ground
Note: In table 2 is general description of 7.0” Winstar TFT display. Refer to the specified TFT
datasheet for more details.
CN5 connector is used to connect 36 pin (0.5mm pitch) FFC from TFT WFxxQ series display. General
pin description is shown in Table 3.
Table 3. CN5 pin configuration
Pin no
Symbol
1
2
3
4
5
6
7-22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
GND
VDD
BL_E
D/C
WR
RD
DB0 – DB15
NC
NC / CTP_INIT
CS
RESET
NC/DISP_ON/LR
NC/UD
NC / TP1
NC / TP2
NC / TP3
NC / TP4
VLEDVLEDVLED+
VLED+
Name and function
Ground
Power supply
Backlight control signal
Data/Command select
Write strobe signal
Read strobe signal
Data Bus
Not connected
Not connected / capacitive touch panel external interrupt
Chip select
Hardware reset
Not connected / Display ON signal / Left-Right display direction
Not connected / Up-Down display direction
Not connected / Touch panel PIN
Not connected / Touch panel PIN
Not connected / Touch panel PIN
Not connected / Touch panel PIN
Backlight - LED inverter (GND)
Backlight - LED inverter (GND)
Backlight + LED inverter (5V)
Backlight + LED inverter (5V)
Note: Touch panel pins variants depend on touch panel type (RTP or CTP). Refer to the Touch
panel configuration section for more details or refer to the specified TFT datasheet.
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UTTP-WF57-WF70-EX01
CN4 is IDC connector used to connect executive board to main board of Unisystem TFT Test Platform.
CN4 contains all signals required to drive LCD TFT and some more signals which can be used to
develop users application. Pin configuration of CN4 is shown in Table 4.
Table 4. CN4 pin configuration
Pin no
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
Symbol Name and function
GND
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
GPIO5
GPIO4
GPIO3
GPIO2
GPIO1
GPIO0
SCL
GND
Ground
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
Data bit
General purpose IO (ADC INPUT)
General purpose IO
General purpose IO
General purpose IO
General purpose IO
General purpose IO (ADC INPUT)
I2C clock signal
Ground
Pin no
Symbol
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
GND
BLLED+
BLLEDVSUP
VSUP
+5V
+5V
+3V3
+3V3
GND
BL_PWM
TPIRQ
NOE
NWE
LCD_CS
LCD_RS
LCD_RST
GND
NSS2
NSS1
MOSI1
MISO1
SCK1
SDA
GND
Name and function
Ground
External positive backlight voltage
External negative backlight voltage
UTTP supply voltage
UTTP supply voltage
+5 V supply voltage
+5 V supply voltage
+3.3 V supply voltage
+3.3 V supply voltage
Ground
Backlight PWM signal
RTP External interrupt signal
FSMC output enable signal
FSMC write enable signal
LCD chip select
LCD register select signal
LCD reset signal
Ground
SPI slave select 2
SPI slave select 1
SPI MOSI signal
SPI MISO signal
SPI SCK signal
I2C data signal
Ground
CN4 pinout is universal to whole Unisystem TFT Test Platform. Therefore, some of the signals in
WF57 and WF70 executive board are redundant. Minimum set of pins to drive WF57 and WF70
series displays are in bold in Table 4.
WF57 and WF70 executive board contains two 10 pin pinheads (CN11 and CN13) with additional
signals. Pin description is shown in Table 5.
Table 5. CN11 and CN13pin configuration
Pin no
1
2
3
4
5
6
7
8
9
10
CN11 symbol CN11 name and function
GND
+5V
+3V3
NSS2
NSS1
MOSI1
MISO1
SCK1
SDA
SCL
Ground
+5 V supply voltage
+3.3 V supply voltage
SPI slave select 2
SPI slave select 1
SPI MOSI signal
SPI MISO signal
SPI SCK signal
I2C data signal
I2C clock signal
CN13 symbol CN13 name and function
GND
+5V
+3V3
GPIO5
GPIO4
GPIO3
GPIO2
GPIO1
GPIO0
GND
Ground
+5 V supply voltage
+3.3 V supply voltage
General purpose IO (ADC INPUT)
General purpose IO
General purpose IO
General purpose IO
General purpose IO
General purpose IO (ADC INPUT)
Ground
Note: I2C bus share lines with RTP controller and CTP. Please take this into account while adding
additional devices to the bus.
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UTTP-WF57-WF70-EX01
CN9 and CN14 (10 pin ZIF connectors) are used to connect AMT CTP. CN8 and CN15 ZIF connector are
used to connect Winstar CTP. Pinout of mentioned connector is shown Table 6.
Table 6. Capacitive Touch Panel connectors configuration
Pin
no
CN9, CN14
symbol
1
2
3
4
5
6
7
8
9
10
+5V
NC
NC
GND
SCL
SDA
NC
NC
INT
NC
CN9, CN14 name
and function
+5 V supply voltage
Not connected
Not connected
Ground
I2C clock signal
I2C data signal
Not connected
Not connected
TP Interrupt
Not connected
CN8, CN15
symbol
GND
+3V3
SCL
NC
SDA
NC
RST
WAKE
INT
GND
CN8, CN15 name
and function
Ground
+3.3 V supply voltage
I2C clock signal
Not connected
I2C data signal
Not connected
Reset signal
Wake up signal
Interrupt signal
Ground
CN6 and CN7 (4 pin ZIF connector) is used to connect Winstar 5.7” and 7.0” RTP. Pinout of CN6 and
CN7 is shown in Table 7.
Table 7. CN6 and CN7 .3 pinout description
Pin no
CN6 symbol
1
2
3
4
YU
XL
YD
XR
CN6 name and function
CN7 symbol CN7 name and function
RTP Up Y electrode
RTP Left X electrode
RTP Down Y electrode
RTP Right X electrode
XL
YD
XR
YU
RTP Left X electrode
RTP Down Y electrode
RTP Right X electrode
RTP Up Y electrode
3. Connection
Connection method is shown on figure 1. WF57E should be connected to CN10 ZIF connector.
WF70A should be connected to CN12 ZIF connector. WFxxQ series TFT should be connected to CN5
ZIF connector. CN4 should be connected to Unisystem TFT Test Main Board. TFT can be positioned
with using proper mounting holes.
Figure 1. Connection WF35 and WF43 executive board to TFT and Unisystem TFT Test Main Board.
In this way connected TFT is ready to operate in Unisystem TFT Test Platform.
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UTTP-WF57-WF70-EX01
4. Touch panel configuration
WF57 and WF70 executive board allows to connect touch panels in various configuration. All touch
panels are connected to I2C bus. In case of resistive touch panels, they are connected to U1 resistive
touch panel controller, and then U1 is connected to I2C bus. Touch panels should be connected to
corresponding ZIF connectors. Connection schematic is shown in Figure 2.
Figure 2. Electrical schematic of touch panel connectors
Winstar 5.7” RTP should be connected to CN7. Winstar 7.0” RTP should be connected to CN6. Pinout
of CN6 and CN7 is shown in Table 7. RTP electrodes are connected to U1 pins. U1 is STMPE610
controller for resistive touch panels with I2C bus interface. Connection schematic is shown in Figure
3. For more details refer to STMPE610 datasheet.
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Figure 3. RTP controller - connection schematic
Note: For CTP and RTP interrupt signals are connected to different lines. It is GPIO1 (CTP) and
TPIRQ (RTP).
WFxxQ series TFTs are available in three touch panel configurations. It could be capacitive touch
panel (CTP), resistive touch panel (RTP) or none. Pins 24 and 29 to 32 of the display are related with
touch panels. Table 8 show dependences of TFT pin configurations for each touch panel.
Table 8. TFT pin configuration depended on TP
Pin
No TP
no symbol name and function
24
29
30
31
32
NC
NC
NC
NC
NC
Not connected
Not connected
Not connected
Not connected
Not connected
CTP
RTP
symbol
name and function
CTP_INT
CTP_SCL
CTP_SDA
CTP_RST
CTP_WAKE
CTP external interrupt
I2C clock signal
I2C data signal
CTP reset signal
CTP wake up signal
symbol
NC
X1
Y1
X2
Y2
name and function
Not connected
RTP electrode
RTP electrode
RTP electrode
RTP electrode
By default WFxxQ executive board is set in No TP configuration. To enable CTP or RTP SB1, SB2, SB3,
SB4 and SB5 have to be set on proper position. Bridge configuration is shown in Table 9.
Table 9. Soldering bridge configuration in case of TP
No TP
CTP
RTP
SB1
SB2
SB3
SB4
SB5
OFF
OFF
OFF
OFF
OFF
1-2
1-2
1-2
1-2
ON
2-3
2-3
2-3
2-3
OFF
When SB are set to RTP configuration RTP is connected to U1. U1 is STMPE610 driver for resistive
touch panels. In this case SDA, SCL and TPIRQ lines are used. For more details refer to STMPE610
datasheet.
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UTTP-WF57-WF70-EX01
When SB are set to CTP configuration CTP is connected to SDA, SCL, GPIO0, GPIO1 and GPIO3 pin,
where GPIO0 is connected to CTP_RST signal, GPIO1 is connected to CTP_INT signal and GPIO3 is
connected to CTP_WAKE signal.
Note: Before changing SB1-5 configuration make sure Unisystem TFT Test Main Board has proper
firmware.
SB configuration variants are show in Figure 4.
Figure 4. SB configuration example
5. Display direction configuration and display ON signal
In WFxxQ TFT displays it is possible to set display direction. This feature is available only in 5.7” an
7.0” Q series displays. Changing display direction is possible by setting high or low level on 27 th and
28th pin of TFT. User can change viewing direction by changing setting of voltage divider made of R2,
R3, R4 and R5. Connection diagram is shown in Figure 5.
Figure 5. Viewing direction configuration circuit
In case of 4.3” Q series displays pin 27 is DISP_ON signal used to turn on display. Pin 28 is not
connected. In case of 3.5” Q series displays pins 27 and 28 is not connected.
By default, mentioned voltage dividers are set floating.
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UTTP-WF57-WF70-EX01
Note: By default in WF57Q and WF70Q display direction is set by shorts on display controller
board. Please remove these shorts from the display before you will change R1-R4
configuration.
The WF57E has also option to change viewing direction. Changing display direction is possible by
setting high or low level on 27th and 28th pin of TFT. User can change viewing direction by changing
setting of voltage divider made of R7, R8, R10 and R11. Electrical connection is shown in Figure 6. By
default this voltage dividers are set floating.
Figure 6. WF57E viewing direction configuration circuit
6. Mechanical drawing
Figure 7. Mechanical drawing
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UTTP-WF57-WF70-EX01
7. Electrical connection
Figure 8. UTTP-WF57-WF70-EX01 - electrical connection
8. Related documents


Winstar, WFxxQ TFT datasheets.
Unisystem, Unisystem TFT Test Main Board datasheet.
9. Ordering information
PN
UTTP-WF57-WF70-EX01
Description
WF57 and WF70 executive board
UTTP-WF57-WF70-EX01 Rev.1.0
MOQ
1
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UTTP-WF57-WF70-EX01
10. Revision history
Date
Revision
27-Feb-2014
1
Changes
Initial release.
Table 10. Document revision history
11. Contact information
For Technical Support please contact: [email protected]
For Sales Support please contact: [email protected]
ul. Aleja Grunwaldzka 212
80-266 Gdańsk, Polska
NIP: 584-101-80-24
[email protected]
www.unisystem.pl
+48 58 761 54 20
11 z 11
+48 58 761 54 21
+48 58 761 54 22
UTTP-WF57-WF70-EX01 Rev.1.0
+48 607 506 680

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