USARTEx Slave Select Management

Defines
#define	USART_NSS_HARD   0x00000000U
#define	USART_NSS_SOFT   USART_CR2_DIS_NSS

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Define Documentation

#define USART_NSS_HARD   0x00000000U

SPI slave selection depends on NSS input pin

Definition at line 57 of file stm32h7xx_hal_usart_ex.h.

#define USART_NSS_SOFT   USART_CR2_DIS_NSS

SPI slave is always selected and NSS input pin is ignored

Definition at line 58 of file stm32h7xx_hal_usart_ex.h.