To Next Page

To Previous Page

6.13 Quad-SPI NOR Flash memory

By default, two 512-Mbit Quad-SPI NOR Flash memories (MT25QL512ABB8ESF-0SIT from MICRON) are

connected to the STM32H745XIH6/STM32H750XBH6 Quad-SPI interface. A single 1-Gbit Quad-SPI NOR Flash

memory (MT25TL01GHBB8ESF-0SIT from MICRON) can also be plugged on the board. In this case, configure

the board as follows:

• U1/U2/R14/R3/R2/R9/SB2/C15 ON

• R53/R62/R54/R56/R60/SB8/SB48 OFF

6.14 Virtual COM port

The USART3 serial interface is directly available as a virtual COM port of the PC, connected to the STLINK-V3

USB connector ( CN14). The virtual COM port settings as the following:

• 115200 baud

• 8-bit data

• No parity

• 1 stop bit

• no flow control

6.15

RGB LCD display

The on-board color display is a 4.3 inch 480x272 LCD-TFT with capacitive touchpanel. It is connected to the

STM32H745XIH6/STM32H750XBH6 LCD interface.

6.16 Buttons and LEDs

The black button (B2), located on the board top side, is the reset of the STM32H745XIH6 and STM32H750XBH6

microcontrollers. Refer to Figure 4. STM32H745I-DISCO and STM32H750B-DK Discovery board top layout. The

blue button (B1), located on the top side, is available to be used as a digital input or as Wakeup alternate function.

Table 5 summarizes the assignment of the control ports to the LED indicators.

Table 5. Assignment of control ports to LED

reference Color Name Comment

B1 BLUE USER Wakeup alternate function

B2 BLACK RESET -

LD1 GREEN VBUS USB FS PA9

LD2 GREEN/RED STLK COM Green when communication ongoing

LD3 RED STLK Over Current -

LD4 GREEN PWR -

LD5 GREEN OTG Over Current PH11

LD6 RED USER1 PJ2

LD7 GREEN USER2 PI13

LD8 GREEN ARDUINO PD3

UM2488

Quad-SPI NOR Flash memory

UM2488 - Rev 4

page 15/55

ST STM32H745I-DISCO User Manual

Questions and Answers: