README.md 3.8 KB
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:
- 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.