2022-07-05 10:05:31 +08:00
|
|
|
|
# STM32F69 Discovery开发板的Arduino生态兼容说明
|
|
|
|
|
|
|
|
|
|
## 1 RTduino - RT-Thread的Arduino生态兼容层
|
|
|
|
|
|
|
|
|
|
STM32F469 Discovery开发板已经完整适配了[RTduino软件包](https://github.com/RTduino/RTduino),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](https://github.com/RTduino/RTduino)。
|
|
|
|
|
|
|
|
|
|
### 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:
|
|
|
|
|
|
|
|
|
|
```Kconfig
|
|
|
|
|
Hardware Drivers Config --->
|
|
|
|
|
Onboard Peripheral Drivers --->
|
|
|
|
|
[*] Support Arduino
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
## 2 Arduino引脚排布
|
|
|
|
|
|
|
|
|
|
![disco-f469-pinout](disco-f469-pinout.png)
|
|
|
|
|
|
|
|
|
|
该BSP遵照Arduino UNO板的引脚排列方式。详见 `pins_arduino.c`
|
|
|
|
|
|
|
|
|
|
| Arduino引脚编号 | STM32引脚编号 | 5V容忍 | 备注 |
|
|
|
|
|
| --------------- | ------------- | ------ | ------------------------------------------------------------ |
|
|
|
|
|
| 0 (D0) | -- | | 该引脚在UNO板中为串口RX引脚,不可当做普通IO |
|
|
|
|
|
| 1 (D1) | -- | | 该引脚在UNO板中为串口TX引脚,不可当做普通IO |
|
|
|
|
|
| 2 (D2) | PG13 | 是 | |
|
|
|
|
|
| 3 (D3) | PA1 | 是 | PWM(定时器2发生) |
|
|
|
|
|
| 4 (D4) | PG12 | 是 | |
|
|
|
|
|
| 5 (D5) | PA2 | 是 | PWM(定时器2发生) |
|
|
|
|
|
| 6 (D6) | PA6 | 是 | PWM(定时器3发生) |
|
|
|
|
|
| 7 (D7) | PG11 | 是 | |
|
|
|
|
|
| 8 (D8) | PG10 | 是 | |
|
|
|
|
|
| 9 (D9) | PA7 | 是 | PWM(定时器3发生) |
|
|
|
|
|
| 10 (D10) | PH6 | 是 | PWM(定时器12发生) |
|
|
|
|
|
| 11 (D11) | PB15 | 是 | PWM(定时器12发生) |
|
|
|
|
|
| 12 (D12) | PB14 | 是 | |
|
2022-08-08 22:00:03 +08:00
|
|
|
|
| 13 (D13) | PD3 | 是 | LED_BUILTIN |
|
2022-07-05 10:05:31 +08:00
|
|
|
|
| 14 (D14) | PB9 | 是 | I2C1-SDA,被RT-Thread的I2C设备框架i2c1总线接管,不可当做普通IO |
|
|
|
|
|
| 15 (D15) | PB8 | 是 | I2C1_SCL,被RT-Thread的I2C设备框架i2c1总线接管,不可当做普通IO |
|
|
|
|
|
| 16 (D16) | PA0 | 是 | Discovery板载用户按键(蓝色) |
|
|
|
|
|
| 17(D17) | PG6 | 是 | user LED1(用户LED) |
|
|
|
|
|
| 18(D18) | PD4 | 是 | user LED2(用户LED) |
|
|
|
|
|
| 19(D19) | PD5 | 是 | user LED3(用户LED) |
|
|
|
|
|
| 20(D20) | PK3 | 是 | user LED4(用户LED) |
|
|
|
|
|
| A0 | PB1 | 是 | ADC Channel_9 |
|
|
|
|
|
| A1 | PC2 | 是 | ADC Channel_12 |
|
|
|
|
|
| A2 | PC3 | 是 | ADC Channel_13 |
|
|
|
|
|
| A3 | PC4 | 是 | ADC Channel_14 |
|
|
|
|
|
| A4 | PC5 | 是 | ADC Channel_15 |
|
|
|
|
|
| A5 | PA4 | 是 | ADC Channel_4 |
|
|
|
|
|
| A6 | -- | | 芯片内部参考电压 ADC |
|
|
|
|
|
| A7 | -- | | 芯片内部温度 ADC |
|
|
|
|
|
|
|
|
|
|
> 注意:
|
|
|
|
|
>
|
|
|
|
|
> - 暂无
|
|
|
|
|
|
|
|
|
|
> 参考资料
|
|
|
|
|
>
|
|
|
|
|
> 【1】[STM32F469 Discovery官方资料](https://www.st.com/en/evaluation-tools/32f469idiscovery.html#documentation)
|
|
|
|
|
|
|
|
|
|
## 3 I2C总线
|
|
|
|
|
|
|
|
|
|
STM32F469 Discovery板的I2C总线是板上丝印的 `SCL/D15` 和 `SDA/D14` 引脚,这两个引脚是被RT-Thread I2C设备框架接管的,不需要直接操控这两个引脚,直接引用`#include <Wire.h>`(Arduino官方I2C头文件)即可使用。
|