rt-thread/bsp/raspberry-pico/applications/arduino_pinout/README.md

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# xxx 开发板的Arduino生态兼容说明
## 1 RTduino - RT-Thread的Arduino生态兼容层
xxx 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 --->
[*] 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.c](pins_arduino.c) 和 [pins_arduino.h](pins_arduino.h)。
![xxx-pinout](xxx-pinout.jpg)
| Arduino引脚编号 | STM32引脚编号 | 5V容忍 | 备注 |
| ------------------- | --------- | ---- | ------------------------------------------------------------------------- |
| 0 (D0) | P | 是/否 | Serial-TX默认被RT-Thread的UART设备框架uart1接管 |
| 1 (D1) | P | 是/否 | Serial-RX默认被RT-Thread的UART设备框架uart1接管 |
| 2 (D2) | P | 是/否 | |
| 3 (D3) | P | 是/否 | |
| 4 (D4) | P | 是/否 | |
| 5 (D5) | P | 是/否 | |
| 6 (D6) | P | 是/否 | |
| 7 (D7) | P | 是/否 | |
| 8 (D8) | P | 是/否 | Serial2-TX默认被RT-Thread的UART设备框架uart2接管 |
| 9 (D9) | P | 是/否 | Serial2-RX默认被RT-Thread的UART设备框架uart2接管 |
| 10 (D10) | P | 是/否 | |
| 11 (D11) | P | 是/否 | |
| 12 (D12) | P | 是/否 | |
| 13 (D13) | P | 是/否 | |
| 14 (D14) | P | 是/否 | |
| 15 (D15) | P | 是/否 | |
| 16 (D16) | P | 是/否 | |
| 17 (D17) | P | 是/否 | |
| 18 (D18) | P | 是/否 | |
| 19 (D19) | P | 是/否 | |
| 20 (D20) | P | 是/否 | |
| 21 (D21) | P | 是/否 | |
| 22 (D22) | P | 是/否 | |
| 23 (D23) | P | 是/否 | 板载用户LED |
| 24 (D24) | P | 是/否 | |
| 25 (D25) | P | 是/否 | |
> 注意:
>
> 1. xxxxxxxxx
> 2. xxxxxxxxx