5.1
Power supply
The X-NUCLEO-GFX01Mx is directly powered by a 3.3 V power supply provided by the Nucleo-64 development
board through pin 16 of the CN2 connector.
5.2
SPI QVGA TFT LCD (LCD1)
5.2.1
Description
The SPI QVGA TFT LCD is connected to a first SPI interface (SPIA) of the STM32 device.
feature each a different LCD with a different controller IC.
Refer to the product history for details.
5.2.2
Operating voltage
The LCD is designed to operate only with a 3.3 V compatible SPI and GPIO interface.
5.2.3
I/O interface
Table 2.
X-NUCLEO-GFX01M1 I/O configuration of the LCD
Pin number Pin name
Signal name
STM32 GPIO
Function
1
LED_K4
-
-
Display backlight LED4 cathode
2
IM0
GND
-
System interface selection: 4-line 8-bit data SPI mode
3
IM1
3V3
-
4
IM2
3V3
-
5
IM3
3V3
-
6
RESET
DISP_NRESET_PA1
PA1
Reset active low
7 - 28
-
-
-
Not connected
29
SDO
SPIA_MISO_PA6_PB14
PA6
PB14
SPI master in/slave out
30
SDI
SPIA_MOSI_PA7_PB15
PA7
PB15
SPI master out/slave in
31
RD
-
-
Not connected
32
RS/SCL
SPIA_SCK_PA5_PB13
PA5
PB13
SPI serial clock
33
WR
SPIA_DCX_PB3_PB3
PB3
SPI write enable
34
CS
SPIA_NCS_PB5_PB5
PB5
SPI chip select active high
35
FMARK
DISP_TE_PA0
PA0
Tearing effect output pin to synchronize MCU on frame
writing
36
VCC
3V3
-
3.3 V power supply
37
GND
GND
-
Ground
38
LED_A
3V3
-
Display backlight LED common anode
39
LED_K1
-
-
Display backlight LED1 cathode
40
LED_K2
-
-
Display backlight LED2 cathode
41
LED_K3
-
-
Display backlight LED3 cathode
42 - 45
-
-
-
Not connected
1. STM32 GPIO for
,
,
,
,
,
,
2. STM32 GPIO for
,
UM2750
Power supply
UM2750
-
Rev 2
page 9/31