Helper Macros

Defines
#define	__LL_LPUART_DIV(__PERIPHCLK__, __PRESCALER__, __BAUDRATE__)
	Compute LPUARTDIV value according to Peripheral Clock and expected Baud Rate (20-bit value of LPUARTDIV is returned)

---

Define Documentation

#define __LL_LPUART_DIV	(		__PERIPHCLK__,
			__PRESCALER__,
			__BAUDRATE__
	)

Value:

(uint32_t)\
  ((((((uint64_t)(__PERIPHCLK__)/(uint64_t)(LPUART_PRESCALER_TAB[(uint16_t)(__PRESCALER__)]))\
      * LPUART_LPUARTDIV_FREQ_MUL) + (uint32_t)((__BAUDRATE__)/2U))/(__BAUDRATE__)) & LPUART_BRR_MASK)

Compute LPUARTDIV value according to Peripheral Clock and expected Baud Rate (20-bit value of LPUARTDIV is returned)

Parameters:

__PERIPHCLK__	Peripheral Clock frequency used for LPUART Instance
__PRESCALER__	This parameter can be one of the following values: LL_LPUART_PRESCALER_DIV1 LL_LPUART_PRESCALER_DIV2 LL_LPUART_PRESCALER_DIV4 LL_LPUART_PRESCALER_DIV6 LL_LPUART_PRESCALER_DIV8 LL_LPUART_PRESCALER_DIV10 LL_LPUART_PRESCALER_DIV12 LL_LPUART_PRESCALER_DIV16 LL_LPUART_PRESCALER_DIV32 LL_LPUART_PRESCALER_DIV64 LL_LPUART_PRESCALER_DIV128 LL_LPUART_PRESCALER_DIV256
__BAUDRATE__	Baud Rate value to achieve

Return values:

LPUARTDIV

value to be used for BRR register filling

Definition at line 468 of file stm32h7xx_ll_lpuart.h.

Referenced by LL_LPUART_SetBaudRate().