The related pinout for the TFT LCD display connector is listed in Table 26.
Table 26. TFT LCD display connector pinout
Connector Pin number Pin name Signal name STM32 pin Function
CN7
1 GND - - Ground
2 FMARK LCD_TE PD3 Tearing effect
3 DB15 LCD_D15 PD10 FMC_D15
4 DB14 LCD_D14 PD9 FMC_D14
5 DB13 LCD_13 PD8 FMC_D13
6 DB12 LCD_D12 PE15 FMC_D12
7 DB11 LCD_D11 PE14 FMC_D11
8 DB10 LCD_D10 PE13 FMC_D10
9 DB9 LCD_D9 PE12 FMC_D9
10 DB8 LCD_D8 PE11 FMC_D8
11 DB7 LCD_D7 PE10 FMC_D7
12 DB6 LCD_D6 PE9 FMC_D6
13 DB5 LCD_D5 PE8 FMC_D5
14 DB4 LCD_D4 PE7 FMC_D4
15 DB3 LCD_D3 PD1 FMC_D3
16 DB2 LCD_D2 PD0 FMC_D2
17 DB1 LCD_D1 PD15 FMC_D1
18 DB0 LCD_D0 PD14 FMC_D0
19 /RD LCD_NOE PD4 FMC_NOE
20 /WR LCD_NWE PD5 FMC_NWE
21 RS LCD_A0_RS PF0 FMC_RS
22 /CS LCD_NE1_CS PC7 FMC_NE
23 RESET LCD_RST PH13 RESET
24 IM - -
8/16 bit mode
selection
25 IOVCC 3V3 - Power
26 VCI 3V3 - Power
27 GND GND - Ground
28 LEDA LED_A - LED anode
29 LEDK LED_K - LED cathode
Table 27 shows the LCD connection for the backlight management.
Table 27. LCD backlight management
Pin number
Pin name Signal name STM32 pin Function
1 EN LCD_BL_CTRL PI3 Backlight enable
15.10 Touch panel connector (CN4)
The touch panel connector CN4 is designed to connect the touch panel.
UM3143
Touch panel connector (CN4)
UM3143 - Rev 1
page 35/53
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