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[Ardunio] stm32-blue-pill对接RTdunio软件包 (#6241)
按照pinout布局图重新设计Arduino引脚布局和功能 - 目前PB0（D12, PWM）和PA15（D5，PWM）测试不通过 参考：stm32duino/Arduino_Core_STM32#1082 (comment)
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‎bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/README.md‎

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@@ -20,55 +20,43 @@ Hardware Drivers Config --->
2020

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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`
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| Arduino引脚编号 | STM32引脚编号 | 5V容忍 | 备注 |
24-
| --------------- | ------------- | ------ | ------------------------------------------------------------ |
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| 0 (D0) | -- | | 该引脚在UNO板中为串口RX引脚，不可当做普通IO |
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| 1 (D1) | -- | | 该引脚在UNO板中为串口TX引脚，不可当做普通IO |
27-
| 2 (D2) | 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 |
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| 3 (D3) | 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 |
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| 4 (D4) | PB7 | 是 | |
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| 5 (D5) | PB6 | 是 | |
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| 6 (D6) | PB5 | 否 | PWM3-CH2（定时器3发生） |
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| 7 (D7) | PB4 | 是 | PWM3-CH1（定时器3发生） |
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| 8 (D8) | PB3 | 是 | PWM2-CH2（定时器2发生） |
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| 9 (D9) | PA15 | 是 | PWM2-CH1（定时器2发生） |
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| 10 (D10) | PA12 | 是 | USB-DB，不可当做普通IO |
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| 11 (D11) | PA11 | 是 | USB-DM，不可当做普通IO |
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| 12 (D12) | PA10 | 是 | UART1-RX，被RT-Thread的UART设备框架uart1接管，不可当做普通IO |
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| 13 (D13) | PA9 | 是 | UART1-RX，被RT-Thread的UART设备框架uart1接管，不可当做普通IO |
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| 14 (D14) | PA8 | 是 | PWM1-CH1（定时器1发生） |
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| 15 (D15) | PB15 | 是 | |
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| 16 (D16) | PB14 | 是 | |
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| 17 (D17) | PB13 | 是 | PWM1-CH1N（定时器1发生） |
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| 18 (D18) | PB12 | 是 | |
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| 19 (D19) | PC13 | 否 | 板载LED默认引脚 |
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| 20 (D20) | PC14 | 否 | |
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| 21 (D21) | PC15 | 否 | |
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| 22 (D22) | PA2 | 否 | UART2-TX，被RT-Thread的UART设备框架uart2接管，不可当做普通IO |
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| 23 (D23) | PA3 | 否 | UART2-RX，被RT-Thread的UART设备框架uart2接管，不可当做普通IO |
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| 24 (D24) | PA5 | 否 | SPI-SCK， SPI功能尚未完全实现，目前仅作普通IO使用 |
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| 25 (D25) | PA6 | 否 | SPI-MISO，SPI功能尚未完全实现，目前仅作普通IO使用 |
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| 26 (D26) | PA7 | 否 | SPI-MOSI，SPI功能尚未完全实现，目前仅作普通IO使用 |
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| 27 (D27) | PB10 | 是 | UART3-TX，被RT-Thread的UART设备框架uart3接管，不可当做普通IO |
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| 28 (D28) | PB11 | 是 | UART3-RX，被RT-Thread的UART设备框架uart3接管，不可当做普通IO |
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| A0 | PA0 | 否 | ADC |
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| A1 | PA1 | 否 | ADC |
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| A2 | PA4 | 否 | ADC |
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| A3 | PB0 | 否 | ADC |
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| A4 | PB1 | 否 | ADC |
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| A5 | -- | | 芯片内部参考电压 ADC |
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| A6 | -- | | 芯片内部温度 ADC |
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| Arduino引脚编号 | STM32引脚编号 | 5V容忍 | 备注 |
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| ----------- | --------- | ---- | -------------------------------------------- |
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| 0 (D0) | PB7 | 是 | |
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| 1 (D1) | PB6 | 是 | |
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| 2 (D2) | PB5 | 否 | PWM3-CH2（定时器3发生） |
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| 3 (D3) | PB4 | 是 | PWM3-CH1（定时器3发生） |
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| 4 (D4) | PB3 | 是 | PWM2-CH2（定时器2发生） |
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| 5 (D5) | PA15 | 是 | PWM2-CH1（定时器2发生） |
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| 6 (D6) | PA8 | 是 | |
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| 7 (D7) | PB12 | 是 | |
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| 8 (D8) | PC13 | 否 | |
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| 9 (D9) | PC14 | 否 | |
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| 10 (D10) | PC15 | 否 | |
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| 11 (D11) | PA0 | 否 | |
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| 12 (D12) | PB0 | 否 | PWM3-CH3（定时器3发生） |
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| 13 (D13) | PB1 | 否 | PWM3-CH4（定时器3发生） |
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| A0 | PA1 | 否 | ADC1-CH1 |
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| A1 | PA4 | 否 | ADC1-CH4 |
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| A2 | PA5 | 否 | ADC1-CH5 |
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| A3 | PA6 | 否 | ADC1-CH6 |
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| A4 | PA7 | 否 | ADC1-CH7 |
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| A5 | -- | | 芯片内部参考电压 ADC |
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| A6 | -- | | 芯片内部温度 ADC |
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| -- | PB9 | 是 | I2C-SDA，被RT-Thread的I2C设备框架i2c1总线接管，不可当做普通IO |
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| -- | PB8 | 是 | I2C-SCL，被RT-Thread的I2C设备框架i2c1总线接管，不可当做普通IO |
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| -- | PA12 | 是 | USB-DP，被TinyUSB接管，不可当做普通IO |
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| -- | PA11 | 是 | USB-DM，被TinyUSB接管，不可当做普通IO |
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| -- | PA10 | 是 | UART1-RX，被RT-Thread的UART设备框架uart1接管，不可当做普通IO |
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| -- | PA9 | 是 | UART1-TX，被RT-Thread的UART设备框架uart1接管，不可当做普通IO |
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| -- | PA2 | 否 | UART2-TX，被RT-Thread的UART设备框架uart2接管，不可当做普通IO |
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| -- | PA3 | 否 | UART2-RX，被RT-Thread的UART设备框架uart2接管，不可当做普通IO |
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| -- | PB10 | 是 | UART3-TX，被RT-Thread的UART设备框架uart3接管，不可当做普通IO |
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| -- | PB11 | 是 | UART3-RX，被RT-Thread的UART设备框架uart3接管，不可当做普通IO |
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| -- | PB15 | 是 | SPI-MOSI，SPI功能尚未完全实现 |
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| -- | PB14 | 是 | SPI-MISO，SPI功能尚未完全实现 |
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| -- | PB13 | 是 | SPI-SCK ，SPI功能尚未完全实现 |
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> 注意：
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>
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>
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> 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。
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> 4. D10引脚是PWM反相位引脚(也就是常说的互补输出引脚CHxN)。但是这里不用考虑到占空比互补问题（CHx-20%，CHxN-80%），直接正常使用即可。
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> 4. STM32的PA15引脚默认作为JTAG下载使用，但是如果采用SWD调试时，PA15(D9)可以作为普通的IO口使用，但是需要设置一些寄存器。
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> 参考资料
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>
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> 1. 暂无
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## 3 I2C总线
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STM32F103 Blue-Pill板的I2C总线是板上丝印的 `SCL/D3` 和 `SDA/D2` 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。

‎bsp/stm32/stm32f103-blue-pill/applications/arduino_pinout/blue-pill-f103-pinout.png‎

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

Lines changed: 28 additions & 36 deletions
Original file line numberDiff line numberDiff line change
@@ -20,42 +20,34 @@
2020
*/
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const pin_map_t pin_map_table[]=
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{
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{D0}, /* RX */
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{D1}, /* TX */
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{D2}, /* I2C1-SDA */
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{D3}, /* I2C1-SCL */
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{D4, GET_PIN(B,7)},
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{D5, GET_PIN(B,6)},
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{D6, GET_PIN(B,5), "pwm3", 2},/* PWM */
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{D7, GET_PIN(B,4), "pwm3", 1}, /* PWM */
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{D8, GET_PIN(B,3), "pwm2", 2}, /* PWM */
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{D9, GET_PIN(A,15), "pwm2", 1}, /* PWM */
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{D10}, /* USB-DP */
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{D11}, /* USB-DM */
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{D12}, /* UART1-RX */
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{D13}, /* UART1-TX */
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{D14, GET_PIN(A,8), "pwm1", 1}, /* PWM */
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{D15, GET_PIN(B,15)},
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{D16, GET_PIN(B,14)},
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{D17, GET_PIN(B,13), "pwm1", -1}, /* PWM */
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{D18, GET_PIN(B,12)},
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{D19, GET_PIN(C,13)}, /* user led1 */
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{D20, GET_PIN(C,14)},
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{D21, GET_PIN(C,15)},
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{D22}, /* UART2-TX */
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{D23}, /* UART2-RX */
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/* The connection of RTdunio SPI has not been completed, *
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* and it can only be used as a common GPIO at present. */
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{D24, GET_PIN(A,5)}, /* SPI-SCK */
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{D25, GET_PIN(A,6)}, /* SPI-MISO */
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{D26, GET_PIN(A,7)}, /* SPI-MOSI */
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{D27}, /* UART3-TX */
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{D28}, /* UART3-RX */
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{A0, GET_PIN(A,0), "adc1", 0}, /* ADC */
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{A1, GET_PIN(A,1), "adc1", 1}, /* ADC */
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{A2, GET_PIN(A,4), "adc1", 4}, /* ADC */
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{A3, GET_PIN(B,0), "adc1", 8}, /* ADC */
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{A4, GET_PIN(B,1), "adc1", 9}, /* ADC */
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{D0, GET_PIN(B,7)},
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{D1, GET_PIN(B,6)},
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{D2, GET_PIN(B,5), "pwm3", 2},/* PWM */
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{D3, GET_PIN(B,4), "pwm3", 1}, /* PWM */
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{D4, GET_PIN(B,3), "pwm2", 2}, /* PWM */
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{D5, GET_PIN(A,15), "pwm2", 1}, /* PWM */
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{D6, GET_PIN(A,8)},
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{D7, GET_PIN(B,12)},
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{D8, GET_PIN(C,13)}, /* LED_BUILTIN */
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{D9, GET_PIN(C,14)},
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{D10, GET_PIN(C,15)},
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{D11, GET_PIN(A,0)},
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{D12, GET_PIN(B,0), "pwm3", 3}, /* PWM */
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{D13, GET_PIN(B,1), "pwm3", 4}, /* PWM */
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{A0, GET_PIN(A,1), "adc1", 1}, /* ADC */
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{A1, GET_PIN(A,4), "adc1", 4}, /* ADC */
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{A2, GET_PIN(A,5), "adc1", 5}, /* ADC */
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{A3, GET_PIN(A,6), "adc1", 6}, /* ADC */
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{A4, GET_PIN(A,7), "adc1", 7}, /* ADC */
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{A5, RT_NULL, "adc1", 17}, /* ADC, On-Chip: internal reference voltage, ADC_CHANNEL_VREFINT */
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{A6, RT_NULL, "adc1", 16} /* ADC, On-Chip: internal temperature sensor, ADC_CHANNEL_TEMPSENSOR */
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};
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/*
46+
* Before RTdunio is used, you can do some necessary initialization through this function
47+
*/
48+
void initVariant()
49+
{
50+
/* JTAG-DP Disabled and SW-DP enabled */
51+
__HAL_RCC_AFIO_CLK_ENABLE();
52+
__HAL_AFIO_REMAP_SWJ_NOJTAG();
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}

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

Lines changed: 15 additions & 23 deletions
Original file line numberDiff line numberDiff line change
@@ -26,34 +26,26 @@
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#define D11 (11)
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#define D12 (12)
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#define D13 (13)
29-
#define D14 (14)
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#define D15 (15)
31-
#define D16 (16)
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#define D17 (17)
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#define D18 (18)
34-
#define D19 (19)
35-
#define D20 (20)
36-
#define D21 (21)
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#define D22 (22)
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#define D23 (23)
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#define D24 (24)
40-
#define D25 (25)
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#define D26 (26)
42-
#define D27 (27)
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#define D28 (28)
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#define A0 (29)
45-
#define A1 (30)
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#define A2 (31)
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#define A3 (32)
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#define A4 (33)
49-
#define A5 (34)
50-
#define A6 (35)
29+
#define A0 (14)
30+
#define A1 (15)
31+
#define A2 (16)
32+
#define A3 (17)
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#define A4 (18)
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#define A5 (19)
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#define A6 (20)
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#define F_CPU 72000000L /* CPU: 72MHz */
53-
#define LED_BUILTIN D19 /* Default Built-in LED */
38+
#define LED_BUILTIN D8 /* Default Built-in LED */
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40+
/*
41+
* i2c1 - PB9-SDA PB8-SCL
42+
*/
5543
#define RTDUINO_DEFAULT_IIC_BUS_NAME "i2c1"
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45+
/*
46+
* uart2 - PA2-TX PA3-RX
47+
* uart3 - PB10-TX PB11-RX
48+
*/
5749
#define RTDUINO_SERIAL2_DEVICE_NAME "uart2"
5850
#define RTDUINO_SERIAL3_DEVICE_NAME "uart3"
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