STM32F412RGT6 Detailed explanation of pin function specifications and circuit principle instructions

The model "STM32F412RGT6" belongs to STMicroelectronics, a well-known semiconductor company. It is part of their STM32 family of microcontrollers.

Package:

The STM32F412RGT6 comes in a LQFP (Low-profile Quad Flat Package) with 100 pins.

Detailed Pin Function Specifications:

Below is a detailed list of the pin functions for STM32F412RGT6. The following table describes the pinout for all 100 pins of this microcontroller:

Pin Number Pin Name Pin Function Description 1 VDD Power Supply (3.3V) Power supply for the device. 2 VSS Ground Ground pin for the device. 3 NRST Reset Input Active low reset pin. This pin is used to reset the microcontroller. 4 BOOT0 Boot Configuration Used to configure the boot mode of the microcontroller (e.g., flash or system memory boot). 5 PA0 GPIO, ADC Input General-purpose input/output, can be configured as ADC channel for analog-to-digital conversion. 6 PA1 GPIO, ADC Input General-purpose input/output, can be configured as ADC channel for analog-to-digital conversion. 7 PA2 GPIO, USART2_TX General-purpose input/output, can function as USART2 transmit pin. 8 PA3 GPIO, USART2_RX General-purpose input/output, can function as USART2 receive pin. 9 PA4 GPIO, SPI1_NSS General-purpose input/output, can be configured as SPI1 chip select (NSS) pin. 10 PA5 GPIO, SPI1_SCK General-purpose input/output, can be configured as SPI1 clock pin (SCK). 11 PA6 GPIO, SPI1_MISO General-purpose input/output, can be configured as SPI1 MISO pin (Master In Slave Out). 12 PA7 GPIO, SPI1_MOSI General-purpose input/output, can be configured as SPI1 MOSI pin (Master Out Slave In). 13 PA8 GPIO, USART1_TX General-purpose input/output, can function as USART1 transmit pin. 14 PA9 GPIO, USART1_RX General-purpose input/output, can function as USART1 receive pin. 15 PA10 GPIO, USART1_CTS General-purpose input/output, can function as USART1 Clear To Send (CTS) pin. 16 PA11 GPIO, USART1_RTS General-purpose input/output, can function as USART1 Request To Send (RTS) pin. 17 PA12 GPIO, SPI1_NSS General-purpose input/output, can be configured as SPI1 chip select (NSS) pin. 18 PA13 GPIO, SWDIO General-purpose input/output, used for serial wire debug (SWD) interface . 19 PA14 GPIO, SWCLK General-purpose input/output, used for serial wire clock (SWCLK) in the debug interface. 20 PA15 GPIO, USART1_CTS General-purpose input/output, can function as USART1 Clear To Send (CTS) pin. 21 PB0 GPIO, SPI2_NSS General-purpose input/output, can be configured as SPI2 chip select (NSS) pin. 22 PB1 GPIO, SPI2_SCK General-purpose input/output, can be configured as SPI2 clock pin (SCK). 23 PB2 GPIO, SPI2_MISO General-purpose input/output, can be configured as SPI2 MISO pin (Master In Slave Out). 24 PB3 GPIO, SPI2_MOSI General-purpose input/output, can be configured as SPI2 MOSI pin (Master Out Slave In). 25 PB4 GPIO, I2C1_SCL General-purpose input/output, can be configured as I2C1 clock pin (SCL). 26 PB5 GPIO, I2C1_SDA General-purpose input/output, can be configured as I2C1 data pin (SDA). 27 PB6 GPIO, USART1_TX General-purpose input/output, can function as USART1 transmit pin. 28 PB7 GPIO, USART1_RX General-purpose input/output, can function as USART1 receive pin. 29 PB8 GPIO, I2C2_SCL General-purpose input/output, can be configured as I2C2 clock pin (SCL). 30 PB9 GPIO, I2C2_SDA General-purpose input/output, can be configured as I2C2 data pin (SDA). 31 PC13 GPIO, EXTI Input General-purpose input/output, can be configured as an external interrupt (EXTI) pin. 32 PC14 GPIO, JTAG_TDI General-purpose input/output, used for JTAG interface (Test Data Input). 33 PC15 GPIO, JTAG_TDO General-purpose input/output, used for JTAG interface (Test Data Output). 34 PD0 GPIO, CAN1_RX General-purpose input/output, can be configured as CAN1 receive pin. 35 PD1 GPIO, CAN1_TX General-purpose input/output, can be configured as CAN1 transmit pin. 36 PD2 GPIO, USART2_TX General-purpose input/output, can function as USART2 transmit pin. 37 PD3 GPIO, USART2_RX General-purpose input/output, can function as USART2 receive pin. 38 PD4 GPIO, SPI1_NSS General-purpose input/output, can be configured as SPI1 chip select (NSS) pin. 39 PD5 GPIO, SPI1_SCK General-purpose input/output, can be configured as SPI1 clock pin (SCK). 40 PD6 GPIO, SPI1_MISO General-purpose input/output, can be configured as SPI1 MISO pin (Master In Slave Out). 41 PD7 GPIO, SPI1_MOSI General-purpose input/output, can be configured as SPI1 MOSI pin (Master Out Slave In). 42 PD8 GPIO, CAN2_RX General-purpose input/output, can be configured as CAN2 receive pin. 43 PD9 GPIO, CAN2_TX General-purpose input/output, can be configured as CAN2 transmit pin. 44 PD10 GPIO, UART4_TX General-purpose input/output, can function as UART4 transmit pin. 45 PD11 GPIO, UART4_RX General-purpose input/output, can function as UART4 receive pin. 46 PD12 GPIO, UART4_CTS General-purpose input/output, can function as UART4 Clear To Send (CTS) pin. 47 PD13 GPIO, UART4_RTS General-purpose input/output, can function as UART4 Request To Send (RTS) pin. 48 PD14 GPIO, I2C3_SCL General-purpose input/output, can be configured as I2C3 clock pin (SCL). 49 PD15 GPIO, I2C3_SDA General-purpose input/output, can be configured as I2C3 data pin (SDA). 50-100 Reserved Unused pins These pins are generally unused or reserved for specific configurations or future use.

Pin Function FAQ for STM32F412RGT6:

Q: What is the maximum voltage supported on the I/O pins of STM32F412RGT6? A: The I/O pins of STM32F412RGT6 support a maximum voltage of 3.6V. Q: Can I use the PA0 pin as an analog input? A: Yes, PA0 can be configured as an analog input for ADC conversions. Q: How do I configure the microcontroller to boot from system memory? A: Set the BOOT0 pin high to configure the device to boot from system memory. Q: How do I reset the STM32F412RGT6 microcontroller? A: You can reset the microcontroller by pulling the NRST pin low. Q: What is the default state of PA13 and PA14? A: PA13 and PA14 are configured as SWDIO and SWCLK pins by default, used for serial wire debugging. Q: Can the STM32F412RGT6 support multiple UART interfaces? A: Yes, the STM32F412RGT6 supports up to 6 USART interfaces. Q: How do I use the SPI functionality on the STM32F412RGT6? A: You can configure the SPI pins (like PA5, PA6, PA7, etc.) to work as SPI interfaces for data communication. Q: Can I use the I2C interfaces for communication on STM32F412RGT6? A: Yes, the microcontroller supports multiple I2C interfaces, such as I2C1, I2C2, and I2C3. Q: Does the STM32F412RGT6 have a CAN interface? A: Yes, it has CAN1 and CAN2 interfaces for controller area network communication.

Q: What are the key features of the PA9 and PA10 pins?

A: PA9 and PA10 are used as USART1 TX and RX pins respectively.

Q: How many external interrupts can be configured on the STM32F412RGT6?

A: The microcontroller can configure up to 16 external interrupts (EXTI).

Q: What is the maximum clock frequency of STM32F412RGT6?

A: The microcontroller supports a maximum clock frequency of 100 MHz.

Q: Can I configure the PA4 pin as a GPIO pin?

A: Yes, PA4 can be configured as a GPIO pin, and it's also capable of functioning as an SPI1 chip select pin.

Q: How do I configure the pins for UART communication?

A: For UART communication, you can configure the corresponding pins, such as PA2/PA3 for USART2, as transmit and receive pins.

Q: Is the STM32F412RGT6 compatible with USB communication?

A: Yes, STM32F412RGT6 supports USB device communication with dedicated USB pins (not shown in this summary).

Q: Can I use PA6 and PA7 for SPI or USART?

A: PA6 and PA7 can be configured for both SPI and USART functions, depending on the desired communication interface.

Q: How can I use the external 32.768 kHz oscillator with the STM32F412RGT6?

A: The STM32F412RGT6 has pins for an external 32.768 kHz crystal oscillator for real-time clock (RTC) operation.

Q: Can the PA0 pin be used for interrupts?

A: Yes, PA0 can be configured to handle external interrupts.

Q: What is the role of PB8 and PB9 pins?

A: PB8 and PB9 are used as I2C2 SCL and SDA pins, respectively.

Q: Is there a bootloader available for STM32F412RGT6?

A: Yes, STM32F412RGT6 comes with a built-in bootloader that supports serial and USB communication for programming the device.

This is a detailed overview of the pin functionality and common FAQs for STM32F412RGT6. Let me know if you need more in-depth explanations or additional details!