宏定义
#define	LL_USART_POLARITY_LOW 0x00000000U
#define	LL_USART_POLARITY_HIGH USART_CR2_CPOL

宏定义文档

#define LL_USART_POLARITY_HIGH USART_CR2_CPOL

传输窗口外SCLK引脚上的稳定高电平值

Definition at line 372 of file stm32g4xx_ll_usart.h.

#define LL_USART_POLARITY_LOW 0x00000000U

传输窗口外SCLK引脚上的稳定低电平值

Definition at line 371 of file stm32g4xx_ll_usart.h.