ST 32F412GDISCOVERY, Руководство пользователя

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Hardware layout and configuration UM2032
24/40 UM2032 Rev 3
5.13 Quad-SPI NOR Flash memory
A 128-Mbit Quad-SPI NOR Flash memory is connected to the Quad-SPI interface of the
STM32F412ZGT6 microcontroller.
Note that QSPI_CLK (port PB2) is sampled by the STM32F412ZGT6 at start-up as the
BOOT1 bit. If necessary, the user can set the BOOT1 state by fitting one of the resistors
R100 or R104. By default R100 and R104 are not fitted. Refer to
Section 5.7: Boot options
for more details.
Limitations: The Quad-SPI memory is not working when the STM32 is supplied with 2 V.
5.14 Virtual COM port
The serial interface USART2 is directly available through a USB Virtual COM port of the
ST-LINK/V2-1. The USB connector is CN6.
5.15 ARDUINO
®
Uno V3 connectors
CN1, CN2, CN11 and CN12 are female connectors compatible with ARDUINO
®
Uno V3
standard. Most shields designed for ARDUINO
®
Uno V3 can fit to the
32F412GDISCOVERY Discovery kit.
Caution: The I/Os of STM32 microcontroller are 3.3 V compatible instead of 5 V for ARDUINO
®
Uno
V3.
Table 7. ARDUINO
®
Uno V3 compatible connectors
Left connectors Right connectors
CN No.
Pin
No.
Pin name STM32 pin Function Function
STM32
pin
Pin
name
Pin No. CN No.
- - - - - I2C2_SCL PB10 D15 10
CN12
Digital
- I2C2_SDA PB9 D14 9
- - - - - AVDD - AVDD 8
- - - - - Ground - GND 7
CN2
Power
1 - -
Not
connected
SPI1_SCK PA5 D13 6
2 IOREF - 3.3 V SPI1_MISO PA6 D12 5
3 NRST NRST Reset
TIM3_CH2,
SPI1_MOSI
PA7 D11 4