ST X-NUCLEO-GFX02Z1 User manual

Introduction

The X-NUCLEO-GFX02Z1 expansion board adds graphic user interface (GUI) capability to STM32 Nucleo-144 boards.

It features a 2.2” 8-bit parallel interface TFT display as well as a 64-Mbit Q-SPI NOR Flash memory for storing graphic images,

texts and texture. The expansion board also offers a joystick for GUI navigation.

X-NUCLEO-GFX02Z1 features the Zio connector. It is compatible with the NUCLEO-F412ZG, NUCLEO-F413ZH, NUCLEO-

F446ZE, NUCLEO-F722ZE, NUCLEO-F746ZG, NUCLEO-F756ZG, NUCLEO-F767ZI, NUCLEO-H743ZI, NUCLEO-H723ZG,

NUCLEO-H753ZI, NUCLEO-H745ZI-Q, NUCLEO-H755ZI-Q, NUCLEO-H7A3ZI-Q, NUCLEO-L496ZG, NUCLEO-L496ZG-P,

NUCLEO-L4A6ZG, NUCLEO-L4P5ZG, NUCLEO-L4R5ZI, NUCLEO-L4R5ZI-P, NUCLEO-L552ZE-Q and NUCLEO-U575ZI-Q

Nucleo-144 boards.

Figure 1. X-NUCLEO-GFX02Z1 top view Figure 2. X-NUCLEO-GFX02Z1 bottom view

Pictures are not contractual.

Display expansion board for STM32 Nucleo-144

UM2905

User manual

UM2905 - Rev 2 - November 2021

For further information contact your local STMicroelectronics sales office. www.st.com

1Features

• 2.2” 8-bit parallel interface QVGA TFT LCD

• 64-Mbit Q-SPI NOR Flash memory

• Joystick for easy menu navigation

• Compatible with selected STM32 Nucleo-144 boards using the Zio connector

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Features

UM2905 - Rev 2 page 2/24

2Ordering information

To order the X-NUCLEO-GFX02Z1 module, refer to Table 1.

Table 1. Ordering information

Order code Board reference

X-NUCLEO-GFX02Z1 MB1818

The STM32 Nucleo-144 boards feature STM32 32-bit microcontrollers based on the Arm® Cortex®‑M processor.

Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.

UM2905

Ordering information

UM2905 - Rev 2 page 3/24

3Development environment

3.1 Demonstration software

The demonstration software supporting the X-NUCLEO-GFX02Z1 expansion board is available from the X-CUBE-

DISPLAY STM32Cube Expansion Package and must be programmed into the corresponding Nucleo-144 board.

The latest versions of the demonstration source code and associated documentation can be downloaded from

www.st.com.

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Development environment

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4Quick start

Before the first use, make sure that no damage occurred to the board during shipment:

• All socketed components must be firmly secured in their sockets

• Nothing should be loose in the board plastic bag or in the box

To start using the X-NUCLEO-GFX02Z1 expansion board, follow the steps below:

1. Plug the board onto a compatible STM32 Nucleo-144 development board

2. Download the evaluation firmware and full documentation set from www.st.com/en/product/x-cube-display

and program the target device

3. Evaluate the graphic possibilities of STM32 devices combined with the TouchGFX Engine graphic library in

X-CUBE-TOUCHGFX or develop your own application

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Quick start

UM2905 - Rev 2 page 5/24

5Hardware layout and configuration

Figure 3 and Figure 4 help users to locate the different features on the X-NUCLEO-GFX02Z1 board. The

mechanical dimensions of the X-NUCLEO-GFX02Z1 product are shown in Figure 5.

Figure 3. X-NUCLEO-GFX02Z1 PCB layout: top side

2.2" QVGA TFT

LCD (LCD1)

Menu navigation

joystick (B1)

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Hardware layout and configuration

UM2905 - Rev 2 page 6/24

Figure 4. X-NUCLEO-GFX02Z1 PCB layout: bottom side

64-Mbit Q-SPI NOR

Flash memory (U1)

LCD ZIF connector

(CN1)

ST Zio connectors

(CN7, CN8, CN9,

CN10)

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Hardware layout and configuration

UM2905 - Rev 2 page 7/24

Figure 5. X-NUCLEO-GFX02Z1 mechanical drawing

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Hardware layout and configuration

UM2905 - Rev 2 page 8/24

5.1 Power supply

The X-NUCLEO-GFX02Z1 is directly powered by a 3.3 V power supply provided by the Nucleo-144 development

board through pin 7 of the CN8 connector.

5.2 8-bit parallel interface QVGA TFT LCD (LCD1)

5.2.1 Description

The 8-bit parallel interface QVGA TFT LCD is connected to the 8-bit parallel interface (D0 to D7) of the STM32

device.

5.2.2 Operating voltage

The LCD is designed to operate only with a 3.3 V compatible interface.

5.2.3 I/O interface

Table 2. 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: 80 MCU 8-bit bus interface I

3 IM1 GND -

4 IM2 GND -

5 IM3 GND -

6 RESET DISP_NRESET PE11 Reset active low

7 - 20 - - - Not connected

21 DB7 DISP_D7 PE10

Data bus

22 DB6 DISP_D6 PE9

23 DB5 DISP_D5 PE8

24 DB4 DISP_D4 PE7

25 DB3 DISP_D3 PD1

26 DB2 DISP_D2 PD0

27 DB1 DISP_D1 PD15

28 DB0 DISP_D0 PD14

29 - - - Not connected

30 - - - Not connected

31 RD DISP_NOE PD4 Read enable

32 RS DISP_DCX PE4 Data or Command select

33 WR DISP_NWE PD5 Write enable

34 CS DISP_NE1 PD7 Chip select

35 FMARK DISP_TE PE13 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

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Power supply

UM2905 - Rev 2 page 9/24

Pin number Pin name Signal name STM32 GPIO Function

40 LED_K2 - - Display backlight LED2 cathode

41 LED_K3 - - Display backlight LED3 cathode

42 - - - Not connected

43 INT INT PE5 Reserved for touch panel

44 I2C_SCL I2C_SCL PF1(1)

PF14(2) Reserved for touch panel

45 I2C_SDA I2C_SDA PF0(1)

PF15(2) Reserved for touch panel

1. NUCLEO-F412ZG, NUCLEO-F413ZH, NUCLEO-F446ZE, NUCLEO-F722ZE, NUCLEO-F746ZG, NUCLEO-F756ZG,

NUCLEO-F767ZI, NUCLEO-H743ZI, NUCLEO-H723ZG, NUCLEO-H753ZI, NUCLEO-L496ZG, NUCLEO-L496ZG-P,

NUCLEO-L4A6ZG, NUCLEO-L4P5ZG, NUCLEO-L4R5ZI, NUCLEO-L4R5ZI-P, NUCLEO-L552ZE-Q, NUCLEO-U575ZI-Q.

2. NUCLEO-H745ZI-Q, NUCLEO-H755ZI-Q, NUCLEO-H7A3ZI-Q.

5.3 Q-SPI NOR Flash memory (U1)

5.3.1 Description

The 64-Mbit Q-SPI NOR Flash memory is connected to a Q-SPI interface of the STM32 device and can be used

to store graphic objects. The use of Q-SPI ensures optimum data transfer between the Flash memory and the

LCD display.

5.3.2 Operating voltage

The NOR Flash memory is designed to operate only with a 3.3 V Q-SPI interface.

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Q-SPI NOR Flash memory (U1)

UM2905 - Rev 2 page 10/24

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