Rev.: 01
1 EB-STM32DISCOVERY-LCD Overview
The EB-STM32DISCOVERY-LCD is an extension board for the STM32VLDISCOVERY Development Board.
Figure 1. LCD connector expansion board for STM32VLDISCOVERY
The expansion board has build in LED backlight driver circuit and 60pin FPC connector for the Kentec LCDs
(3.5 inch: K350QVG-V2-F; 4.3 inch: K430WQC-V3-FF; 5.0 inch: K50DWN2-V1-FF; 7.0 inch: K70DWN2-V1-FF;
9.0 inch: K90DWN2-V1-FF).
2 EB-STM32DISCOVERY-LCD Dimensions
Figure 2. Outline Dimensions
STM32VLDISCOVERY LCD Interface Expansion Board
(EB-STM32DISCOVERY-LCD) User Guide
Rev.: 01
3 EB-STM32DISCOVERY-LCD Interface
Table 1-1. Main Interface Signal P1 (28pin header connect to STM32VLDISCOVERY MCU board)
Pin STM32VLDISCOVERY
PIN Symbol
EB-STM32DISCOVERY-LCD
Symbol Description
1 GND GND Ground (0V)
2 NC NC No connection
3 3V3 3V3 Power supply (+3.3V)
4 VBAT NC No connection
5 PC13 NC No connection
6 PC14 NC No connection
7 PC15 NC No connection
8 PD0 NC No connection
9 PD1 NC No connection
10 RST NC No connection
11 PC0 D0 LCD parallel data bus bit 0
12 PC1 D1 LCD parallel data bus bit 1
13 PC2 D2 LCD parallel data bus bit 2
14 PC3 D3 LCD parallel data bus bit 3
15 PA0 NC No connection
16 PA1 NC No connection
17 PA2 NC No connection
18 PA3 NC No connection
19 PA4 NC No connection
20 PA5 SCL LCD serial clock input
21 PA6 NC No connection
22 PA7 SDA LCD serial data input
23 PC4 D4 LCD parallel data bus bit 4
24 PC5 D5 LCD parallel data bus bit 5
25 PB0 RD LCD parallel data read control signal
26 PB1 WR LCD parallel data write control signal
27 PB2 NC No connection
28 GND GND Ground (0V)
Table 1-2. Main Interface Signal P2 (6pin header connect to STM32DISCOVERY MCU board)
Pin STM32DISCOVERY
PIN Symbol
EB-STM32DISCOVERY-LCD
Symbol Description
1 PB10 D10 LCD parallel data bus bit 10
2 PB11 D11 LCD parallel data bus bit 11
3 PB12 D12 LCD parallel data bus bit 12
4 PB13 D13 LCD parallel data bus bit 13
5 PB14 D14 LCD parallel data bus bit 14
6 PB15 D15 LCD parallel data bus bit 15
Rev.: 01
Table 1-3. Main Interface Signal P3 (28pin header connect to STM32DISCOVERY MCU board)
Pin STM32DISCOVERY
PIN Symbol
EB-STM32DISCOVERY-LCD
Symbol Description
1 GND GND Ground (0V)
2 PC6 D6 LCD parallel data bus bit 6
3 PC7 D7 LCD parallel data bus bit 7
4 PC8 NC No connection
5 PC9 NC No connection
6 PA8 NC No connection, (optional for LCD backlight control by R37)
7 PA9 NC No connection
8 PA10 NC No connection
9 PA11 NC No connection
10 PA12 NC No connection
11 PA13 NC No connection
12 PA14 NC No connection
13 PA15 NC No connection
14 PC10 RS LCD command/data select signal
15 PC11 CS LCD chip select signal
16 PC12 Reset LCD reset signal
17 PD2 NC No connection
18 PB3 NC No connection
19 PB4 NC No connection
20 PB5 NC No connection
21 PB6 NC No connection
22 PB7 NC No connection
23 Boot NC No connection
24 PB8 D8 LCD parallel data bus bit 8
25 PB9 D9 LCD parallel data bus bit 9
26 5V 5V Power supply for LCD backlight circuit (+5V)
27 NC NC No connection
28 GND GND Ground (0V)
Table 2. LCD Interface Signal (CN1 60pin ZIF connector to LCD module)
Pin Symbol Description
1, 2 LED_K LED power supply (-)
3, 4 LED_A LED power supply (+)
5 GND Ground (0V)
6 XR
7 YD
8 XL
9 YU
4-wire resistor touch screen terminal
10 GND Ground (0V)
Rev.: 01
Continued Table 2, LCD Interface Signal (60pin ZIF connector to LCD module)
11~13
NC No Connection
14 Reset Reset input signal for LCD
15 CS Chip select for LCD
16~19
NC No Connection
20 D0 Data bit 0, default connected to GND on MCU board
21~25
D1~D5 Data bit 1 ~ bit 5
26, 27
NC No Connection
28~30
D6~D8 Data bit 6 ~ bit 8
31 D9 Data bit 9, default connected to GND on MCU board
32, 33
D10, D11 Data bit 10 ~ bit 11
34, 35
NC No Connection
36~41
D12~D17 Data bit 12 ~ bit 17
42~44
GND Ground (0V)
45, 46
AVDD Power supply (3.3V)
47, 48
VCC Power supply (3.3V)
49 RS Command/Data select signal for LCD
50 RD Read control signal for LCD
51 WR Write control signal for LCD
52 PS0
53 PS1
54 PS2
55 PS3
LCD interface select pin for K350QVG-V2-F, default set to i8080 16-bit parallel.
56, 57
NC No connection
58~60
GND Ground (0V)
Rev.: 01
4 Schematics
1 2 3 4
A
B
C
D
4321
D
C
B
ATitle
Number RevisionSize
A4
Date: 23-Aug-2011 Sheet of
File: D:\KentecDisplay\Element14\TopRun\ST\PCB\STM32DiscoveryLCD.ddbDrawn By:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
P1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
P3
GND
3V3
VBAT
PC13
PC14
PC15
PD0
PD1
RST
PC0
PC1
PC2
PC3
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PC4
PC5
PB0
PB1
PB2
GND GND
PC6
PC7
PC8
PC9
PA8
PA9
PA10
PA11
PA12
PA13
PA14
PA15
PC10
PC11
PC12
PD2
PB3
PB4
PB5
PB6
PB7
Boot
PB8
PB9
5V
GND
1
2
3
4
5
6
P2
PB10
PB11
PB12
PB13
PB14
PB15
LED-K
1
LED-K
2
LED-A
3
LED-A
4
GND
5
XR
6
YD
7
XL
8
YU
9
GND
10
NC
11
NC
12
NC
13
RESET
14
CS
15
SPCLK
16
SPSDA
17
NC
18
NC
19
D0
20
D1
21
D2
22
D3
23
D4
24
D5
25
NC
26
NC
27
D6
28
D7
29
D8
30
D9
31
D10
32
D11
33
NC
34
NC
35
D12
36
D13
37
D14
38
D15
39
D16
40
D17
41
HSYNC
42
VSYNC
43
DCLK
44
AVDD
45
AVDD
46
VCC
47
VCC
48
DC
49
RD
50
WR
51
PS0
52
PS1
53
PS2
54
PS3
55
WSYNC
56
NC
57
OE(DEN)
58
GND
59
GND
60
CN1
3V3
PS0
PS1
PS2
PS3
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
R13
R14
R15
R16
R17
R18
R19
R20
R21
R22
R23
R24
R25
3V3
5V
R26
R27
R28
R29
R30
R31
R32
R33
3V3
RESET
CS
GND
5V
LED-A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
CN2
CON40
XR
YD
XL
YU
GND
GND
RS
RD
WR
3V3
GND
LED-K
5V
5V
BL_EN
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
GND
RESET
CS
RS
WR
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
RD
XR
YD
XL
YU
LED-K
LED-A
LED-K
LED-A
L1
22uH
C3
4.7uF D1 C4
1.0uF
R35
15R(for 20mA)
R36
100K
R34 NC
5V
VIN
1
GND
2
EN
3FB 4
SW 5
GND 0
U1
PT4110
SW
D2
C1
0.1uF C2
0.1uF
3V3 5V
LED-A
LED-K
R37
NC
PA8
+Vcc
1
X+
2
Y+
3
X-
4
Y-
5
GND
6
Vbat
7
AUX
8Vref 9
+Vcc 10
PENIRQ 11
DOUT 12
BUSY 13
DIN 14
CS 15
DCLK 16
U2
R38
2K
C5
0.1
XR
YU
XL
YD
3V3
R50 0
R39
2K
C6
1uF
C7
1uF
C8
1uF
C9
1uF R40
R41
R42
R43
R44
R45
PA7
PA6
PA5
PA4
PA2
PA3
R46
R47
R48
R49
TP_CLK
TP_CS
TP_DIN
TP_BUSY
TP_DOUT
TP_INT
SDA
SCL
PS3 PS0PS1PS2
0000
0 0 0 1
0 0 01
0 0 11
16-bit 6800 parallel interface
8-bit 6800 parallel interface
16-bit 8080 parallel interface
8-bit 8080 parallel interface
0111
1 1 1 1
3 wire SPI
4 wire SPI
Interface Mode
DB[17:10], DB[8:1]
DB[17:10]
CS, SCL, SDA
DB[17:10], DB[8:1]
DB[17:10]
CS, RS, SCL, SDA
Data Bus
0R
0R
0R
0R
0R 0R
0R
0R
0R
0R
0R
0R
0R 0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
0R
NC
NC
NC
NC
Reserved for resistive touch controler
Figure 3. Expansion board schematic
4 Components Location
Figure 4. Expansion board components layout
5 LCD driver code examples
Bellow attachment is the source code for the K350QVG-V2-F.
NO.
Document Attachment
1 Source code package
