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[RTduino][stm32g474-nucleo] update readme

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Meco Man 2023-04-09 19:11:48 -04:00 committed by Man, Jianting (Meco)
parent 0e5ee77c39
commit 24c3d7d72a
2 changed files with 13 additions and 5 deletions
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8
bsp/stm32/stm32g474-st-nucleo/applications/arduino_pinout/README.md
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@ -53,6 +53,10 @@ For additional information on pin layout, refer to [pins_arduino.c](pins_arduino
| 23 (A6) | -- | | On-chip reference voltage ADC, default controlled by RT-Thread's ADC device framework adc1 |
| 24 (A7) | -- | | On-chip temperature sensor ADC, default controlled by RT-Thread's ADC device framework adc1 |
> Notice:
>
> 1. Don't use a same hardware timer to drive PWM (analogRead) and servos at same time, because hardware timers can only generate a same frequency for 4 PWM channels. Otherwise, it could cause a failure when drive servos.
> References:
> 1.[stm32-nucleo-64-boards-mb1136-stmicroelectronics.pdf](https://www.st.com/resource/en/user_manual/dm00105823-stm32-nucleo-64-boards-mb1136-stmicroelectronics.pdf)
> 2.[ST-Nucleo-G474RE](https://os.mbed.com/platforms/ST-Nucleo-G474RE)
> 1. [stm32-nucleo-64-boards-mb1136-stmicroelectronics.pdf](https://www.st.com/resource/en/user_manual/dm00105823-stm32-nucleo-64-boards-mb1136-stmicroelectronics.pdf)
> 2. [ST-Nucleo-G474RE](https://os.mbed.com/platforms/ST-Nucleo-G474RE)

10
bsp/stm32/stm32g474-st-nucleo/applications/arduino_pinout/README_zh.md
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@ -54,6 +54,10 @@ Hardware Drivers Config --->
| 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 |
> References:
> 1.[stm32-nucleo-64-boards-mb1136-stmicroelectronics.pdf](https://www.st.com/resource/en/user_manual/dm00105823-stm32-nucleo-64-boards-mb1136-stmicroelectronics.pdf)
> 2.[ST-Nucleo-G474RE](https://os.mbed.com/platforms/ST-Nucleo-G474RE)
> 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](https://www.st.com/resource/en/user_manual/dm00105823-stm32-nucleo-64-boards-mb1136-stmicroelectronics.pdf)
> 2. [ST-Nucleo-G474RE](https://os.mbed.com/platforms/ST-Nucleo-G474RE)