GPIO设置 TX配置为 复用推挽 RX配置为 开漏输入
USART配置
引脚定义
IO |
USART |
重定义 |
重定义 |
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PA8 |
USART1_CK |
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PA9 |
USART1_TX |
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PB6 |
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PA10 |
USART1_RX |
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PB7 |
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PA11 |
USART1_CTS |
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PA12 |
USART1_RTS |
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PA0 |
USART2_CTS |
PD3 |
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PA1 |
USART2_RTS |
PD4 |
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PA2 |
USART2_TX |
PD5 |
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PA3 |
USART2_RX |
PD6 |
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PA4 |
USART2_CK |
PD7 |
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PB10 |
USART3_TX |
PD8 |
PC10 |
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PB11 |
USART3_RX |
PD9 |
PC11 |
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PB12 |
USART3_CK |
PD10 |
PC12 |
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PB13 |
USART3_CTS |
PD11 |
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PB14 |
USART3_RTS |
PD12 |
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