[rtduino][bluepill] 增加英语readme (#6425)

* [rtduino][bluepill] update readme

bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README.md

@@ -1,12 +1,14 @@
-# STM32F103 Blue-Pill开发板的Arduino生态兼容说明
+# The Arduino Compatible of STM32 Blue Pill Board
 
-## 1 RTduino - RT-Thread的Arduino生态兼容层
+**English** | [中文](README_zh.md)
 
-STM32F103 Blue-Pill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 RTduino - Arduino Ecosystem Compatibility Layer for RT-Thread
 
-### 1.1 如何开启针对本BSP的Arduino生态兼容层
+STM32 Blue Pill board has support [RTduino](https://github.com/RTduino/RTduino). Users can use Arduino APIs, third party libraries and programming method to program on Blue Pill board.
 
-Env 工具下敲入 menuconfig 命令，或者 RT-Thread Studio IDE 下选择 RT-Thread Settings：
+### 1.1 How to Enable RTduino
+
+Please go to the [RTduino repository](https://github.com/RTduino/RTduino) to see the details.
 
 ```Kconfig
 Hardware Drivers Config --->
@@ -14,50 +16,62 @@ Hardware Drivers Config --->
         [*] Support Arduino
 ```
 
-## 2 Arduino引脚排布
+## 2 Arduino Pinout
 
 ![blue-pill-f103-pinout](blue-pill-f103-pinout.png)
 
-该BSP遵照Arduino UNO板的引脚排列方式，并扩展增加了Blue-pill自身的板载资源功能引脚。详见 `pins_arduino.c`
-
-| Arduino引脚编号 | STM32引脚编号 | 5V容忍 | 备注                                           |
-| ----------- | --------- | ---- | -------------------------------------------- |
-| 0 (D0)      | PB7       | 是    |                                                 |
-| 1 (D1)      | PB6       | 是    |                                                 |
-| 2 (D2)      | PB5       | 否    | PWM3-CH2，默认被RT-Thread的PWM设备框架pwm3接管    |
-| 3 (D3)      | PB4       | 是    | PWM3-CH1，默认被RT-Thread的PWM设备框架pwm3接管    |
-| 4 (D4)      | PB3       | 是    | PWM2-CH2，默认被RT-Thread的PWM设备框架pwm2接管    |
-| 5 (D5)      | PA15      | 是    | PWM2-CH1，默认被RT-Thread的PWM设备框架pwm2接管    |
-| 6 (D6)      | PA8       | 是    |                                                 |
-| 7 (D7)      | PB12      | 是    |                                                 |
-| 8 (D8)      | PC13      | 否    |                                                 |
-| 9 (D9)      | PC14      | 否    |                                                 |
-| 10 (D10)    | PC15      | 否    |                                                 |
-| 11 (D11)    | PA0       | 否    |                                                 |
-| 12 (D12)    | PB0       | 否    | PWM3-CH3，默认被RT-Thread的PWM设备框架pwm3接管    |
-| 13 (D13)    | PB1       | 否    | PWM3-CH4，默认被RT-Thread的PWM设备框架pwm3接管    |
-| 14 (D14)    | PB9       | 是    | I2C-SDA，默认被RT-Thread的I2C设备框架i2c1总线接管  |
-| 15 (D15)    | PB8       | 是    | I2C-SCL，默认被RT-Thread的I2C设备框架i2c1总线接管  |
-| 16 (D16)    | PA12      | 是    | USB-DP，默认被 [TinyUSB软件包](https://github.com/RT-Thread-packages/tinyusb) 接管|
-| 17 (D17)    | PA11      | 是    | USB-DM，默认被 [TinyUSB软件包](https://github.com/RT-Thread-packages/tinyusb) 接管|
-| 18 (D18)    | PA10      | 是    | UART1-RX，默认被RT-Thread的UART设备框架uart1接管  |
-| 19 (D19)    | PA9       | 是    | UART1-TX，默认被RT-Thread的UART设备框架uart1接管  |
-| 20 (D20)    | PA2       | 否    | UART2-TX，默认被RT-Thread的UART设备框架uart2接管  |
-| 21 (D21)    | PA3       | 否    | UART2-RX，默认被RT-Thread的UART设备框架uart2接管  |
-| 22 (D22)    | PB10      | 是    | UART3-TX，默认被RT-Thread的UART设备框架uart3接管  |
-| 23 (D23)    | PB11      | 是    | UART3-RX，默认被RT-Thread的UART设备框架uart3接管  |
-| 24 (D24)    | PB15      | 是    | SPI-MOSI，默认被RT-Thread的SPI设备框架spi2接管    |
-| 25 (D25)    | PB14      | 是    | SPI-MISO，默认被RT-Thread的SPI设备框架spi2接管    |
-| 26 (D26)    | PB13      | 是    | SPI-SCK ，默认被RT-Thread的SPI设备框架spi2接管    |
-| 27 (A0)     | PA1       | 否    | ADC1-CH1，默认被RT-Thread的ADC设备框架adc1接管    |
-| 28 (A1)     | PA4       | 否    | ADC1-CH4，默认被RT-Thread的ADC设备框架adc1接管    |
-| 29 (A2)     | PA5       | 否    | ADC1-CH5，默认被RT-Thread的ADC设备框架adc1接管    |
-| 30 (A3)     | PA6       | 否    | ADC1-CH6，默认被RT-Thread的ADC设备框架adc1接管    |
-| 31 (A4)     | PA7       | 否    | ADC1-CH7，默认被RT-Thread的ADC设备框架adc1接管    |
-| 32 (A5)     | --        |       | 芯片内部参考电压 ADC                             |
-| 33 (A6)     | --        |       | 芯片内部温度 ADC                                 |
-
-
-> 注意：
+| Arduino Pin | STM32 Pin | 5V Tolerate | 备注                                                                                                          |
+| ----------- | --------- | ----------- | ----------------------------------------------------------------------------------------------------------- |
+| 0 (D0)      | PB7       | Yes         |                                                                                                             |
+| 1 (D1)      | PB6       | Yes         |                                                                                                             |
+| 2 (D2)      | PB5       | No          | PWM3-CH2. Token over by RT-Thread PWM device by default                                                     |
+| 3 (D3)      | PB4       | Yes         | PWM3-CH1. Token over by RT-Thread PWM device by default                                                     |
+| 4 (D4)      | PB3       | Yes         | PWM2-CH2. Token over by RT-Thread PWM device by default                                                     |
+| 5 (D5)      | PA15      | Yes         | PWM2-CH1. Token over by RT-Thread PWM device by default                                                     |
+| 6 (D6)      | PA8       | Yes         |                                                                                                             |
+| 7 (D7)      | PB12      | Yes         |                                                                                                             |
+| 8 (D8)      | PC13      | No          |                                                                                                             |
+| 9 (D9)      | PC14      | No          |                                                                                                             |
+| 10 (D10)    | PC15      | No          |                                                                                                             |
+| 11 (D11)    | PA0       | No          |                                                                                                             |
+| 12 (D12)    | PB0       | No          | PWM3-CH3. Token over by RT-Thread PWM device by default                                                     |
+| 13 (D13)    | PB1       | No          | PWM3-CH4. Token over by RT-Thread PWM device by default                                                     |
+| 14 (D14)    | PB9       | Yes         | I2C-SDA. Token over by RT-Thread I2C device by default                                                      |
+| 15 (D15)    | PB8       | Yes         | I2C-SCL. Token over by RT-Thread I2C device by default                                                      |
+| 16 (D16)    | PA12      | Yes         | USB-DP. Token over by RT-Thread [TinyUSB](https://github.com/RT-Thread-packages/tinyusb) device by default. |
+| 17 (D17)    | PA11      | Yes         | USB-DM. Token over by RT-Thread [TinyUSB](https://github.com/RT-Thread-packages/tinyusb) device by default. |
+| 18 (D18)    | PA10      | Yes         | UART1-RX. Token over by RT-Thread UART device by default                                                    |
+| 19 (D19)    | PA9       | Yes         | UART1-TX. Token over by RT-Thread UART device by default                                                    |
+| 20 (D20)    | PA2       | No          | UART2-TX. Token over by RT-Thread UART device by default                                                    |
+| 21 (D21)    | PA3       | No          | UART2-RX. Token over by RT-Thread UART device by default                                                    |
+| 22 (D22)    | PB10      | Yes         | UART3-TX. Token over by RT-Thread UART device by default                                                    |
+| 23 (D23)    | PB11      | Yes         | UART3-RX. Token over by RT-Thread UART device by default                                                    |
+| 24 (D24)    | PB15      | Yes         | SPI-MOSI. Token over by RT-Thread SPI device by default                                                     |
+| 25 (D25)    | PB14      | Yes         | SPI-MISO. Token over by RT-Thread SPI device by default                                                     |
+| 26 (D26)    | PB13      | Yes         | SPI-SCK. Token over by RT-Thread SPI device by default                                                      |
+| 27 (A0)     | PA1       | No          | ADC1-CH1. Token over by RT-Thread ADC device by default                                                     |
+| 28 (A1)     | PA4       | No          | ADC1-CH4. Token over by RT-Thread ADC device by default                                                     |
+| 29 (A2)     | PA5       | No          | ADC1-CH5. Token over by RT-Thread ADC device by default                                                     |
+| 30 (A3)     | PA6       | No          | ADC1-CH6. Token over by RT-Thread ADC device by default                                                     |
+| 31 (A4)     | PA7       | No          | ADC1-CH7. Token over by RT-Thread ADC device by default                                                     |
+| 32 (A5)     | --        |             | ADC of chip internal reference voltage. Token over by RT-Thread ADC device by default                       |
+| 33 (A6)     | --        |             | ADC of chip internal temperature. Token over by RT-Thread ADC device by default                             |
+
+> Note:
 > 
-> 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。
+> 1. If you drive the servo and call the analogWrite function at the same time, you need to select the PWM signal pins generated by different timers. Since the 4 channels of the STM32 timer need to maintain the same frequency, if the PWM generated by the same timer is used to drive the servo and analogWrite respectively , it may cause the servo to fail.
+> 2. More information about Arduino pinout, please see [pins_arduino.c](pins_arduino.c) and [pins_arduino.h](pins_arduino.h)
+
+## 3 Communication
+
+### 3.1 I2C Bus
+
+I2C bus is `D14` and `D15` 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
+
+SPI bus is `D24`, `D25` and `D26` pins. Users can directly include the `#include <SPI.h>`, which is the Arduino official SPI header file, to use the SPI bus. In addition, chip select pin (SS) also is used, which is `D7` by default.
+
+### 3.3 USB
+
+This board supports USB virtual COM by default. See [example](https://github.com/RTduino/RTduino/tree/master/examples/USBSerial).

bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README_zh.md

@@ -0,0 +1,77 @@
+# STM32F103 Blue-Pill开发板的Arduino生态兼容说明
+
+[English](README.md) | **中文**
+
+## 1 RTduino - RT-Thread的Arduino生态兼容层
+
+STM32F103 Blue-Pill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
+
+![blue-pill-f103-pinout](blue-pill-f103-pinout.png)
+
+| Arduino引脚编号 | STM32引脚编号 | 5V容忍 | 备注                                                                        |
+| ----------- | --------- | ---- | ------------------------------------------------------------------------- |
+| 0 (D0)      | PB7       | 是    |                                                                           |
+| 1 (D1)      | PB6       | 是    |                                                                           |
+| 2 (D2)      | PB5       | 否    | PWM3-CH2，默认被RT-Thread的PWM设备框架pwm3接管                                       |
+| 3 (D3)      | PB4       | 是    | PWM3-CH1，默认被RT-Thread的PWM设备框架pwm3接管                                       |
+| 4 (D4)      | PB3       | 是    | PWM2-CH2，默认被RT-Thread的PWM设备框架pwm2接管                                       |
+| 5 (D5)      | PA15      | 是    | PWM2-CH1，默认被RT-Thread的PWM设备框架pwm2接管                                       |
+| 6 (D6)      | PA8       | 是    |                                                                           |
+| 7 (D7)      | PB12      | 是    |                                                                           |
+| 8 (D8)      | PC13      | 否    |                                                                           |
+| 9 (D9)      | PC14      | 否    |                                                                           |
+| 10 (D10)    | PC15      | 否    |                                                                           |
+| 11 (D11)    | PA0       | 否    |                                                                           |
+| 12 (D12)    | PB0       | 否    | PWM3-CH3，默认被RT-Thread的PWM设备框架pwm3接管                                       |
+| 13 (D13)    | PB1       | 否    | PWM3-CH4，默认被RT-Thread的PWM设备框架pwm3接管                                       |
+| 14 (D14)    | PB9       | 是    | I2C-SDA，默认被RT-Thread的I2C设备框架i2c1总线接管                                      |
+| 15 (D15)    | PB8       | 是    | I2C-SCL，默认被RT-Thread的I2C设备框架i2c1总线接管                                      |
+| 16 (D16)    | PA12      | 是    | USB-DP，默认被 [TinyUSB软件包](https://github.com/RT-Thread-packages/tinyusb) 接管 |
+| 17 (D17)    | PA11      | 是    | USB-DM，默认被 [TinyUSB软件包](https://github.com/RT-Thread-packages/tinyusb) 接管 |
+| 18 (D18)    | PA10      | 是    | UART1-RX，默认被RT-Thread的UART设备框架uart1接管                                     |
+| 19 (D19)    | PA9       | 是    | UART1-TX，默认被RT-Thread的UART设备框架uart1接管                                     |
+| 20 (D20)    | PA2       | 否    | UART2-TX，默认被RT-Thread的UART设备框架uart2接管                                     |
+| 21 (D21)    | PA3       | 否    | UART2-RX，默认被RT-Thread的UART设备框架uart2接管                                     |
+| 22 (D22)    | PB10      | 是    | UART3-TX，默认被RT-Thread的UART设备框架uart3接管                                     |
+| 23 (D23)    | PB11      | 是    | UART3-RX，默认被RT-Thread的UART设备框架uart3接管                                     |
+| 24 (D24)    | PB15      | 是    | SPI-MOSI，默认被RT-Thread的SPI设备框架spi2接管                                       |
+| 25 (D25)    | PB14      | 是    | SPI-MISO，默认被RT-Thread的SPI设备框架spi2接管                                       |
+| 26 (D26)    | PB13      | 是    | SPI-SCK ，默认被RT-Thread的SPI设备框架spi2接管                                       |
+| 27 (A0)     | PA1       | 否    | ADC1-CH1，默认被RT-Thread的ADC设备框架adc1接管                                       |
+| 28 (A1)     | PA4       | 否    | ADC1-CH4，默认被RT-Thread的ADC设备框架adc1接管                                       |
+| 29 (A2)     | PA5       | 否    | ADC1-CH5，默认被RT-Thread的ADC设备框架adc1接管                                       |
+| 30 (A3)     | PA6       | 否    | ADC1-CH6，默认被RT-Thread的ADC设备框架adc1接管                                       |
+| 31 (A4)     | PA7       | 否    | ADC1-CH7，默认被RT-Thread的ADC设备框架adc1接管                                       |
+| 32 (A5)     | --        |      | 芯片内部参考电压 ADC，默认被RT-Thread的ADC设备框架adc1接管                                   |
+| 33 (A6)     | --        |      | 芯片内部温度 ADC                                                                |
+
+> 注意：
+> 
+> 1. 如果同时驱动舵机和调度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。
+> 2. 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)
+
+## 3 通信
+
+### 3.1 I2C (Wire.h)
+
+I2C总线是 `D14` 和 `D15` 引脚，这两个引脚默认是被RT-Thread I2C设备框架接管的，直接引用`#include <Wire.h>`（Arduino官方I2C头文件）即可使用。
+
+### 3.2 SPI
+
+SPI总线是 `D24` 、`D25` 和 `D26` 引脚，这三个引脚默认是被RT-Thread SPI设备框架接管的，直接引用`#include <SPI.h>`（Arduino官方SPI头文件）即可使用。此外，还使用到了片选引脚(SS)，默认为 `D7`。
+
+### 3.3 USB
+
+默认支持USB虚拟串口，详见[例程](https://github.com/RTduino/RTduino/tree/master/examples/USBSerial)。

bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/pins_arduino.c

@@ -12,7 +12,7 @@
 #include "pins_arduino.h"
 
 /*
-    {Arduino Pin, RT-Thread Pin [, Device Name(PWM or ADC), Channel]}
+    {Arduino Pin, RT-Thread Pin [, Device Name, Channel]}
     [] means optional
     Digital pins must NOT give the device name and channel.
     Analog pins MUST give the device name and channel(ADC, PWM or DAC).

bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/pins_arduino.h

@@ -50,21 +50,16 @@
 #define F_CPU  72000000L /* CPU: 72MHz */
 #define LED_BUILTIN  D8 /* Default Built-in LED */
 
-/*
- * i2c1 - PB9-SDA PB8-SCL
- */
+/* i2c1 - PB9-SDA PB8-SCL */
 #define RTDUINO_DEFAULT_IIC_BUS_NAME            "i2c1"
 
-/*
- * uart2 - PA2-TX  PA3-RX
- * uart3 - PB10-TX PB11-RX
- */
+/* uart2 - PA2-TX  PA3-RX */
 #define RTDUINO_SERIAL2_DEVICE_NAME             "uart2"
+
+/* uart3 - PB10-TX PB11-RX */
 #define RTDUINO_SERIAL3_DEVICE_NAME             "uart3"
 
-/*
- * spi2 - PB13-SCK  PB14-MISO  PB15-MOSI
- */
+/* spi2 - PB13-SCK  PB14-MISO  PB15-MOSI */
 #define SS  D7 /* Chip select pin of default spi */
 #define RTDUINO_DEFAULT_SPI_BUS_NAME            "spi2"