Exported_Macros_Helper

Defines
#define	__LL_USART_DIV_SAMPLING8_100(__PERIPHCLK__, __BAUDRATE__)   ((uint32_t)((((uint64_t)(__PERIPHCLK__))*25)/(2*((uint64_t)(__BAUDRATE__)))))
	Compute USARTDIV value according to Peripheral Clock and expected Baud Rate in 8 bits sampling mode (32 bits value of USARTDIV is returned)
#define	__LL_USART_DIVMANT_SAMPLING8(__PERIPHCLK__, __BAUDRATE__)   (__LL_USART_DIV_SAMPLING8_100((__PERIPHCLK__), (__BAUDRATE__))/100)
#define	__LL_USART_DIVFRAQ_SAMPLING8(__PERIPHCLK__, __BAUDRATE__)
#define	__LL_USART_DIV_SAMPLING8(__PERIPHCLK__, __BAUDRATE__)
#define	__LL_USART_DIV_SAMPLING16_100(__PERIPHCLK__, __BAUDRATE__)   ((uint32_t)((((uint64_t)(__PERIPHCLK__))*25)/(4*((uint64_t)(__BAUDRATE__)))))
	Compute USARTDIV value according to Peripheral Clock and expected Baud Rate in 16 bits sampling mode (32 bits value of USARTDIV is returned)
#define	__LL_USART_DIVMANT_SAMPLING16(__PERIPHCLK__, __BAUDRATE__)   (__LL_USART_DIV_SAMPLING16_100((__PERIPHCLK__), (__BAUDRATE__))/100)
#define	__LL_USART_DIVFRAQ_SAMPLING16(__PERIPHCLK__, __BAUDRATE__)
#define	__LL_USART_DIV_SAMPLING16(__PERIPHCLK__, __BAUDRATE__)

---

Define Documentation

#define __LL_USART_DIV_SAMPLING16	(		__PERIPHCLK__,
			__BAUDRATE__
	)

Value:

(((__LL_USART_DIVMANT_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) << 4) + \
                                                                            (__LL_USART_DIVFRAQ_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) & 0xF0)) + \
                                                                           (__LL_USART_DIVFRAQ_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) & 0x0F))

Definition at line 383 of file stm32f4xx_ll_usart.h.

Referenced by LL_USART_SetBaudRate().

#define __LL_USART_DIV_SAMPLING16_100	(		__PERIPHCLK__,
			__BAUDRATE__
	)		((uint32_t)((((uint64_t)(__PERIPHCLK__))*25)/(4*((uint64_t)(__BAUDRATE__)))))

Compute USARTDIV value according to Peripheral Clock and expected Baud Rate in 16 bits sampling mode (32 bits value of USARTDIV is returned)

Parameters:

__PERIPHCLK__	Peripheral Clock frequency used for USART instance
__BAUDRATE__	Baud rate value to achieve

Return values:

USARTDIV

value to be used for BRR register filling in OverSampling_16 case

Definition at line 377 of file stm32f4xx_ll_usart.h.

#define __LL_USART_DIV_SAMPLING8	(		__PERIPHCLK__,
			__BAUDRATE__
	)

Value:

(((__LL_USART_DIVMANT_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) << 4) + \
                                                                            ((__LL_USART_DIVFRAQ_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) & 0xF8) << 1)) + \
                                                                           (__LL_USART_DIVFRAQ_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) & 0x07))

Definition at line 366 of file stm32f4xx_ll_usart.h.

Referenced by LL_USART_SetBaudRate().

#define __LL_USART_DIV_SAMPLING8_100	(		__PERIPHCLK__,
			__BAUDRATE__
	)		((uint32_t)((((uint64_t)(__PERIPHCLK__))*25)/(2*((uint64_t)(__BAUDRATE__)))))

Compute USARTDIV value according to Peripheral Clock and expected Baud Rate in 8 bits sampling mode (32 bits value of USARTDIV is returned)

Parameters:

__PERIPHCLK__	Peripheral Clock frequency used for USART instance
__BAUDRATE__	Baud rate value to achieve

Return values:

USARTDIV

value to be used for BRR register filling in OverSampling_8 case

Definition at line 360 of file stm32f4xx_ll_usart.h.

#define __LL_USART_DIVFRAQ_SAMPLING16	(		__PERIPHCLK__,
			__BAUDRATE__
	)

Value:

((((__LL_USART_DIV_SAMPLING16_100((__PERIPHCLK__), (__BAUDRATE__)) - (__LL_USART_DIVMANT_SAMPLING16((__PERIPHCLK__), (__BAUDRATE__)) * 100)) * 16)\
                                                                         + 50) / 100)

Definition at line 379 of file stm32f4xx_ll_usart.h.

#define __LL_USART_DIVFRAQ_SAMPLING8	(		__PERIPHCLK__,
			__BAUDRATE__
	)

Value:

((((__LL_USART_DIV_SAMPLING8_100((__PERIPHCLK__), (__BAUDRATE__)) - (__LL_USART_DIVMANT_SAMPLING8((__PERIPHCLK__), (__BAUDRATE__)) * 100)) * 8)\
                                                                         + 50) / 100)

Definition at line 362 of file stm32f4xx_ll_usart.h.

#define __LL_USART_DIVMANT_SAMPLING16	(		__PERIPHCLK__,
			__BAUDRATE__
	)		(__LL_USART_DIV_SAMPLING16_100((__PERIPHCLK__), (__BAUDRATE__))/100)

Definition at line 378 of file stm32f4xx_ll_usart.h.

#define __LL_USART_DIVMANT_SAMPLING8	(		__PERIPHCLK__,
			__BAUDRATE__
	)		(__LL_USART_DIV_SAMPLING8_100((__PERIPHCLK__), (__BAUDRATE__))/100)

Definition at line 361 of file stm32f4xx_ll_usart.h.