GD32F103C8T6 Detailed explanation of pin function specifications and circuit principle instructions

The model you are referring to, GD32F103C8T6, is part of the GD32F1x0 series of microcontrollers developed by GigaDevice Semiconductor Inc., a company based in China. These microcontrollers are ARM Cortex-M3 based, widely used in embedded systems and various electronic applications.

1. Package Type and Pin Configuration:

The GD32F103C8T6 model typically comes in a LQFP-48 (Low-profile Quad Flat Package) package with 48 pins. It has several features like:

48 Pins in total. Power Supply: VDD and VSS pins. GPIO Pins: General Purpose Input/Output pins, which can be configured to perform different functions. Communication interface s: UART, SPI, I2C, etc. Analog Inputs: ADC channels. Timers: PWM outputs and other timer functionalities. Interrupts: External interrupts for processing signals.

2. Detailed Pin Function List (48 Pins for LQFP-48 Package):

Pin Pin Name Function Description 1 VSS Ground pin for the power supply. 2 VDD Power supply pin (3.3V). 3 PA13 SWDIO (Serial Wire Debug Data Input/Output) pin for debugging. 4 PA14 SWCLK (Serial Wire Debug Clock ) pin for debugging. 5 PA15 External interrupt or GPIO function. 6 PB3 External interrupt or GPIO function. 7 PB4 External interrupt or GPIO function. 8 PB5 External interrupt or GPIO function. 9 PB6 SPI1_MISO (Master In Slave Out) pin for SPI communication. 10 PB7 SPI1_MOSI (Master Out Slave In) pin for SPI communication. 11 PB8 SPI1_SCK (Clock) pin for SPI communication. 12 PB9 SPI1_NSS (Slave Select) pin for SPI communication. 13 PA0 Analog input for ADC channel 0. 14 PA1 Analog input for ADC channel 1. 15 PA2 Analog input for ADC channel 2. 16 PA3 Analog input for ADC channel 3. 17 PA4 GPIO or Timer function. 18 PA5 GPIO or Timer function. 19 PA6 GPIO or Timer function. 20 PA7 GPIO or Timer function. 21 PB0 External interrupt or GPIO function. 22 PB1 External interrupt or GPIO function. 23 PB2 External interrupt or GPIO function. 24 PC13 External interrupt or GPIO function. 25 PC14 External interrupt or GPIO function. 26 PC15 External interrupt or GPIO function. 27 PD0 External interrupt or GPIO function. 28 PD1 External interrupt or GPIO function. 29 PD2 External interrupt or GPIO function. 30 PD3 External interrupt or GPIO function. 31 PD4 External interrupt or GPIO function. 32 PD5 External interrupt or GPIO function. 33 PD6 External interrupt or GPIO function. 34 PD7 External interrupt or GPIO function. 35 PE0 External interrupt or GPIO function. 36 PE1 External interrupt or GPIO function. 37 PE2 External interrupt or GPIO function. 38 PE3 External interrupt or GPIO function. 39 PE4 External interrupt or GPIO function. 40 PE5 External interrupt or GPIO function. 41 PE6 External interrupt or GPIO function. 42 PE7 External interrupt or GPIO function. 43 PA8 External interrupt or GPIO function. 44 PA9 External interrupt or GPIO function. 45 PA10 External interrupt or GPIO function. 46 PA11 External interrupt or GPIO function. 47 PA12 External interrupt or GPIO function. 48 PB10 External interrupt or GPIO function.

3. FAQ (Frequently Asked Questions)

Q1: What is the function of PA13 in the GD32F103C8T6?

A1: PA13 is used for SWDIO, which is the data input/output pin for Serial Wire Debug, allowing communication with a debugger.

Q2: What is the purpose of PA14 in GD32F103C8T6?

A2: PA14 is used for SWCLK, which is the clock pin for Serial Wire Debug, ensuring proper synchronization during debugging.

Q3: How many GPIO pins does GD32F103C8T6 have?

A3: The GD32F103C8T6 has a total of 48 GPIO pins that can be configured for various input/output tasks.

Q4: What is the role of PB5 in the GD32F103C8T6?

A4: PB5 is a GPIO pin and can be used as a digital input/output or for external interrupts.

Q5: Does GD32F103C8T6 support SPI communication?

A5: Yes, it supports SPI communication through pins PB3 (MISO), PB4 (MOSI), PB5 (SCK), and PB9 (NSS).

Q6: What is the maximum operating frequency of the GD32F103C8T6?

A6: The GD32F103C8T6 operates at a maximum frequency of 72 MHz.

Q7: How many ADC channels are available in the GD32F103C8T6?

A7: The GD32F103C8T6 has 16 ADC channels for analog-to-digital conversion.

Q8: How can I use the PA0 pin on the GD32F103C8T6?

A8: PA0 is configured as an analog input for ADC channel 0, allowing you to read analog signals.

Q9: What timers are available in the GD32F103C8T6?

A9: The GD32F103C8T6 has three general-purpose timers and two advanced-control timers for PWM, input capture, and output compare.

Q10: Does GD32F103C8T6 support I2C communication?

A10: Yes, it supports I2C communication, with pins like PB6 (SCL) and PB7 (SDA).

Q11: What is the purpose of the PD7 pin?

A11: PD7 is a general-purpose input/output pin or can be used for external interrupts.

Q12: Can I use the PE2 pin for UART communication?

A12: Yes, PE2 is a part of the UART2 interface, typically used as the TX (transmit) pin.

Q13: How do I configure the PA1 pin for analog input?

A13: To configure PA1 for ADC input, set the pin to analog mode in the firmware, and use it for reading analog signals.

Q14: Is GD32F103C8T6 compatible with 3.3V logic?

A14: Yes, GD32F103C8T6 operates with a 3.3V supply, and its I/O pins are also 3.3V tolerant.

Q15: Can I use the PC13, PC14, and PC15 pins for external interrupts?

A15: Yes, these pins can be configured as external interrupt pins for triggering interrupts.

Q16: What is the voltage range supported by VDD in GD32F103C8T6?

A16: The VDD pin supports a voltage range of 2.6V to 3.6V.

Q17: How can I use PB8 and PB9 in the GD32F103C8T6?

A17: PB8 and PB9 are used for SPI communication, specifically as the SPI clock (SCK) and slave select (NSS) pins.

Q18: What are the timer channels available in the GD32F103C8T6?

A18: The GD32F103C8T6 has timer channels for PWM output on pins like PA6, PA7, and other pins.

Q19: Can I use the PD0 and PD1 pins as GPIO?

A19: Yes, both PD0 and PD1 can be used as GPIO pins for digital input or output.

Q20: What is the pin configuration for the SPI1 interface in GD32F103C8T6?

A20: SPI1 uses PB3 (MISO), PB4 (MOSI), PB5 (SCK), and PB9 (NSS) for communication.

This provides a detailed breakdown of the pin functions and the most commonly asked questions regarding the GD32F103C8T6.