ST X-NUCLEO-GFX01M1 Manuale utente

Introduction

The X-NUCLEO-GFX01M1 expansion board adds graphic user interface (GUI) capability to STM32 Nucleo boards.

It features a 2.2” SPI QVGA TFT display as well as a 64-Mbit SPI NOR Flash memory for storing graphic images, texts and

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

X-NUCLEO-GFX01M1 uses the ST morpho connector. It is compatible with the NUCLEO-F030R8, NUCLEO-F070RB,

NUCLEO-F072RB, NUCLEO-F091RC, NUCLEO-F401RE, NUCLEO-F410RB, NUCLEO-F411RE, NUCLEO-F446RE,

NUCLEO-G071RB, NUCLEO-L053R8, NUCLEO-L073RZ, NUCLEO-L412RB-P, NUCLEO-L433RC-P, NUCLEO-L452RE,

NUCLEO-L452RE-P and NUCLEO-L476RG Nucleo boards.

Figure 1. X-NUCLEO-GFX01M1 top view Figure 2. X-NUCLEO-GFX01M1 bottom view

Pictures are not contractual.

SPI display expansion board for STM32 Nucleo

UM2750

User manual

UM2750 - Rev 1 - August 2020

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

1Features

• 2.2” SPI QVGA TFT LCD

• 64-Mbit SPI NOR Flash memory

• Joystick for easy menu navigation

• Compatible with selected STM32 Nucleo boards using the ST morpho interface

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Features

UM2750 - Rev 1 page 2/21

2Ordering information

To order the X-NUCLEO-GFX01M1 module, refer to Table 1.

Table 1. Ordering information

Order code Board reference Target STM32

X-NUCLEO-GFX01M1 MB1642 Not applicable

The STM32 Nucleo 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.

2.1 Product marking

The sticker located on the top or bottom side of the PCB board shows the information about product identification

such as board reference, revision and serial number.

The first identification line has the following format: “MBxxxx-Variant-yzz”, where “MBxxxx” is the board reference,

“Variant” (optional) identifies the mounting variant when several exist, "y" is the PCB revision and "zz" is the

assembly revision: for example B01.

The second identification line is the board serial number used for traceability.

Evaluation tools marked as “ES” or “E” are not yet qualified and therefore not ready to be used as reference

design or in production. Any consequences deriving from such usage will not be at ST charge. In no event, ST will

be liable for any customer usage of these engineering sample tools as reference designs or in production.

“E” or “ES” marking examples of location:

• On the targeted STM32 that is soldered on the board (For an illustration of STM32 marking, refer to the

STM32 datasheet “Package information” paragraph at the www.st.com website).

• Next to the evaluation tool ordering part number that is stuck or silk-screen printed on the board.

UM2750

Ordering information

UM2750 - Rev 1 page 3/21

3Development environment

3.1 Demonstration software

The demonstration software supporting the X-NUCLEO-GFX01M1 expansion board is available from the X-

CUBE-DISPLAY STM32Cube Expansion Package and must be programmed into the corresponding Nucleo

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

from www.st.com.

UM2750

Development environment

UM2750 - Rev 1 page 4/21

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-GFX01M1 expansion board, follow the steps below:

1. Plug the board on a compatible STM32 Nucleo development board

2. Download the evaluation firmware and full set of documentation from www.st.com/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

UM2750

Quick start

UM2750 - Rev 1 page 5/21

5Hardware layout and configuration

Figure 3 and Figure 4 help users to locate the different features on the X-NUCLEO-GFX01M1 board. The

mechanical dimensions of the X-NUCLEO-GFX01M1 product are shown in Figure 5.

Figure 3. X-NUCLEO-GFX01M1 PCB layout: top side

2.2" SPI QVGA

TFT LCD

Menu navigation

joystick

UM2750

Hardware layout and configuration

UM2750 - Rev 1 page 6/21

Figure 4. X-NUCLEO-GFX01M1 PCB layout: bottom side

64-Mbit SPI NOR

Flash memory

LCD ZIF

connector

ST morpho

connectors

UM2750

Hardware layout and configuration

UM2750 - Rev 1 page 7/21

Figure 5. X-NUCLEO-GFX01M1 mechanical drawing

UM2750

Hardware layout and configuration

UM2750 - Rev 1 page 8/21

5.1 Power supply

The X-NUCLEO-GFX01M1 is directly powered by a 3.3 V power supply provided by the Nucleo 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.

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. 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(1) (2) Reset active low

7 - 28 - - - Not connected

29 SDO SPIA_MISO_PA6_PB14 PA6(1)

PB14(2) SPI master in/slave out

30 SDI SPIA_MOSI_PA7_PB15 PA7(1)

PB15(2) SPI master out/slave in

31 RD - - Not connected

32 RS/SCL SPIA_SCK_PA5_PB13 PA5(1)

PB13(2) SPI serial clock

33 WR SPIA_DCX_PB3_PB3 PB3(1) (2) SPI write enable

34 CS SPIA_NCS_PB5_PB5 PB5(1) (2) SPI chip select active high

35 FMARK DISP_TE_PA0 PA0(1) (2) Tearing effect output pin to synchronize MCU on frame

writing

36 VCC 3V3 - 3.3V 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 NUCLEO-F030R8, NUCLEO-F070RB, NUCLEO-F072RB, NUCLEO-F091RC, NUCLEO-F401RE,

NUCLEO-F410RB, NUCLEO-F411RE, NUCLEO-F446RE, NUCLEO-G071RB, NUCLEO-L053R8, NUCLEO-L073RZ,

NUCLEO-L452RE and NUCLEO-L476RG.

2. STM32 GPIO for NUCLEO-L412RB-P, NUCLEO-L433RC-P and NUCLEO-L452RE-P.

UM2750

Power supply

UM2750 - Rev 1 page 9/21

5.3 SPI NOR Flash memory (U1)

5.3.1 Description

The 64-Mbit SPI NOR Flash memory is connected to a second SPI interface (SPIB) of the STM32 device and can

be used to store graphic objects. The use of a second 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 SPI interface.

5.3.3 I/O interface

Table 3. I/O configuration of the NOR Flash memory

Pin number Pin name Signal name STM32 GPIO Function

1 CS# SPIB_NCS_PB9_PB7 PB9(1)

PB7(2) SPI chip select active high

2 SO SPIB_MISO_PC2_PA6 PC2(1)

PA6(2) SPI master in/slave out

3 WP# - - Write protection feature disabled

4 GND GND - Ground

5 SI SPIB_MOSI_PC3_PA12 PC3(1)

PA12(2) SPI master out/slave in

6 SCLK SPIB_SCK_PB13_PA5 PB13(1)

PA5(2) SPI chip select active low

7 HOLD# - - Pause feature disabled

8 VCC 3V3 - 3.3V power supply

1. STM32 GPIO for NUCLEO-F030R8, NUCLEO-F070RB, NUCLEO-F072RB, NUCLEO-F091RC, NUCLEO-F401RE,

NUCLEO-F410RB, NUCLEO-F411RE, NUCLEO-F446RE, NUCLEO-G071RB, NUCLEO-L053R8, NUCLEO-L073RZ,

NUCLEO-L452RE and NUCLEO-L476RG.

2. STM32 GPIO for NUCLEO-L412RB-P, NUCLEO-L433RC-P and NUCLEO-L452RE-P.

5.4 Joystick (B1)

5.4.1 Description

The joystick (B1) allows the navigation within the menu displayed on the LCD.

5.4.2 I/O interface

Table 4. I/O configuration of the joystick

Pin number Pin name Signal name STM32 GPIO Function

1 LEFT KEY_LEFT_PC9 PC9 Joystick left direction (active low)

2 CENTER KEY_CENTER_PC8 PC8 Joystick center (active low)

3 DOWN KEY_DOWN_PC10 PC10 Joystick down direction (active low)

4 UP KEY_UP_PC12 PC12 Joystick up direction (active low)

5 COMMON GND - Common connected to ground

6 RIGHT KEY_RIGHT_PC11 PC11 Joystick right direction (active low)

UM2750

SPI NOR Flash memory (U1)

UM2750 - Rev 1 page 10/21

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