rt-thread/bsp/wch/risc-v/ch32v307v-r1/applications/arduino_pinout

The Arduino Compatible for CH32V307V-R1

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1 RTduino - Arduino Ecosystem Compatibility Layer for RT-Thread

CH32V307V-R1 board has support RTduino. Users can use Arduino APIs, third party libraries and programming method to program on the board.

1.1 How to Enable RTduino

This board complies with Arduino UNO pins layout. For more details, Please go to the RTduino repository.

Hardware Drivers Config --->
    Onboard Peripheral Drivers --->
        [*] Compatible with Arduino Ecosystem (RTduino)

2 Arduino Pinout

For more information, please see pins_arduino.c and pins_arduino.h.

Arduino Pin	CH32 Pin	5V Tolerate	Note
0 (D0)	PA10	Yes	Serial-Rx. Token over by RT-Thread UART device by default
1 (D1)	PA9	Yes	Serial-Tx. Token over by RT-Thread UART device by default
2 (D2)	PA8	Yes	PWM1-CH1. Token over by RT-Thread PWM device by default
3 (D3)	PA7	No	PWM3-CH2. Token over by RT-Thread PWM device by default
4 (D4)	PA6	No	PWM3-CH1. Token over by RT-Thread PWM device by default
5 (D5)	PB5	Yes
6 (D6)	PB8	Yes	PWM4-CH3. Token over by RT-Thread PWM device by default
7 (D7)	PB9	Yes	PWM4-CH4. Token over by RT-Thread PWM device by default
8 (D8)	PB1	No	PWM3-CH4. Token over by RT-Thread PWM device by default
9 (D9)	PB0	No	PWM3-CH3. Token over by RT-Thread PWM device by default
10 (D10)	PB12	Yes
11 (D11)	PB15	Yes
12 (D12)	PB14	Yes
13 (D13)	PB13	Yes
14 (D14)	PB11	Yes	I2C-SDA. Token over by RT-Thread I2C device by default
15 (D15)	PB10	No	I2C-SCL. Token over by RT-Thread I2C device by default
A0	PA0	No	ADC1-CH0. Token over by RT-Thread ADC device by default
A1	PA1	No	ADC1-CH1. Token over by RT-Thread ADC device by default
A2	PA2	No	ADC1-CH2. Token over by RT-Thread ADC device by default
A3	PA3	No	ADC1-CH3. Token over by RT-Thread ADC device by default
A4	PA4	No	ADC1-CH4. Token over by RT-Thread ADC device by default
A5	PA5	No	ADC1-CH5. Token over by RT-Thread ADC device by default

Notice:

1. Don't use a same hardware timer to drive PWM (analogRead) and servos at same time, because hardware timers can only generate a same frequency for 4 PWM channels. Otherwise, it could cause a failure when drive servos.

3 Communication

3.1 I2C Bus

I2C bus is SCL/D15 and SDA/D14 pins. Users can directly include the #include <Wire.h>, which is the Arduino official I2C header file, to use the I2C bus.

3.2 SPI Bus

This board doesn't support Arduino SPI header file and functions.

3.3 Serial

This board supports to use Serial. method to operate uart1 device. See example.