ST X-NUCLEO-GFX01M1, Руководство пользователя

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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
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