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README

STM32G474 Nucleo开发板的Arduino生态兼容说明

中文 | English

1 RTduino - RT-Thread的Arduino生态兼容层

STM32G474 Nucleo开发板已经完整适配了RTduino软件包,即RT-Thread的Arduino生态兼容层。用户可以按照Arduino的编程习惯来操作该BSP,并且可以使用大量Arduino社区丰富的库,是对RT-Thread生态的极大增强。更多信息,请参见RTduino软件包说明文档

1.1 如何开启针对本BSP的Arduino生态兼容层

Env 工具下敲入 menuconfig 命令,或者 RT-Thread Studio IDE 下选择 RT-Thread Settings:

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

2 Arduino引脚排布

更多引脚布局相关信息参见 pins_arduino.cpins_arduino.h

stm32g474-nucleo-pinout.jpg nucleo_g474re_arduino_left.jpg nucleo_g474re_arduino_right.jpg

Arduino引脚编号 STM32引脚编号 5V容忍 备注
0 (D0) PC5
1 (D1) PC4
2 (D2) PA10 Serial2-RX,默认被RT-Thread的UART设备框架uart1接管
3 (D3) PB3 PWM2-CH2,默认被RT-Thread的PWM设备框架pwm2接管
4 (D4) PB5
5 (D5) PB4 PWM3-CH1,默认被RT-Thread的PWM设备框架pwm3接管
6 (D6) PB10 PWM2-CH3,默认被RT-Thread的PWM设备框架pwm2接管
7 (D7) PA8
8 (D8) PA9 Serial2-TX,默认被RT-Thread的UART设备框架uart1接管
9 (D9) PC7 PWM8-CH2,默认被RT-Thread的PWM设备框架pwm8接管
10 (D10) PB6 PWM4-CH1,默认被RT-Thread的PWM设备框架pwm4接管
11 (D11) PA7 PWM3-CH2,默认被RT-Thread的PWM设备框架pwm3接管
12 (D12) PA6
13 (D13) PA5 板载用户LED
14 (D14) PB9 I2C1-SDA,默认被RT-Thread的I2C设备框架i2c1接管
15 (D15) PB8 I2C1-SCL,默认被RT-Thread的I2C设备框架i2c1接管
16 (D16) PC13
17 (A0) PA0 ADC1-CH1,默认被RT-Thread的ADC设备框架adc1接管
18 (A1) PA1 ADC1-CH2,默认被RT-Thread的ADC设备框架adc1接管
19 (A2) PA4 ADC2-CH17,默认被RT-Thread的ADC设备框架adc2接管
20 (A3) PB0 ADC1-CH15,默认被RT-Thread的ADC设备框架adc1接管
21 (A4) PC1 ADC1-CH7,默认被RT-Thread的ADC设备框架adc1接管
22 (A5) PC0 ADC1-CH6,默认被RT-Thread的ADC设备框架adc1接管
23 (A6) -- 芯片内部参考电压 ADC,默认被RT-Thread的ADC设备框架adc1接管
24 (A7) -- 芯片内部温度 ADC,默认被RT-Thread的ADC设备框架adc1接管

注意:

  1. 驱动舵机和analogWrite函数要选择不同定时器发生的PWM信号引脚,由于STM32的定时器4个通道需要保持相同的频率,如果采用相同的定时器发生的PWM分别驱动舵机和analogWrite,可能会导致舵机失效。

参考资料:

  1. stm32-nucleo-64-boards-mb1136-stmicroelectronics.pdf
  2. ST-Nucleo-G474RE
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