Public Attributes | List of all members
UART_InitTypeDef Struct Reference
STM32F4xx_HAL_Driver | STM32F7xx_HAL_Driver | STM32H7xx_HAL_Driver » UART » UART Exported Types

UART Init Structure definition. More...

#include <stm32f4xx_hal_uart.h>

Public Attributes

uint32_t BaudRate
 
uint32_t ClockPrescaler
 
uint32_t HwFlowCtl
 
uint32_t Mode
 
uint32_t OneBitSampling
 
uint32_t OverSampling
 
uint32_t Parity
 
uint32_t StopBits
 
uint32_t WordLength
 

Detailed Description

UART Init Structure definition.

Definition at line 47 of file stm32f4xx_hal_uart.h.

Member Data Documentation

◆ BaudRate

uint32_t UART_InitTypeDef::BaudRate

This member configures the UART communication baud rate. The baud rate is computed using the following formula:

  • IntegerDivider = ((PCLKx) / (8 * (OVR8+1) * (huart->Init.BaudRate)))
  • FractionalDivider = ((IntegerDivider - ((uint32_t) IntegerDivider)) * 8 * (OVR8+1)) + 0.5 Where OVR8 is the "oversampling by 8 mode" configuration bit in the CR1 register.

This member configures the UART communication baud rate. The baud rate register is computed using the following formula:

  • If oversampling is 16 or in LIN mode, Baud Rate Register = ((uart_ker_ck) / ((huart->Init.BaudRate)))
  • If oversampling is 8, Baud Rate Register[15:4] = ((2 * uart_ker_ck) / ((huart->Init.BaudRate)))[15:4] Baud Rate Register[3] = 0 Baud Rate Register[2:0] = (((2 * uart_ker_ck) / ((huart->Init.BaudRate)))[3:0]) >> 1 where uart_ker_ck is the UART input clock

This member configures the UART communication baud rate. The baud rate register is computed using the following formula:

LPUART:

Baud Rate Register = ((256 * lpuart_ker_ckpres) / ((huart->Init.BaudRate))) where lpuart_ker_ck_pres is the UART input clock divided by a prescaler

UART:

  • If oversampling is 16 or in LIN mode, Baud Rate Register = ((uart_ker_ckpres) / ((huart->Init.BaudRate)))
  • If oversampling is 8, Baud Rate Register[15:4] = ((2 * uart_ker_ckpres) / ((huart->Init.BaudRate)))[15:4] Baud Rate Register[3] = 0 Baud Rate Register[2:0] = (((2 * uart_ker_ckpres) / ((huart->Init.BaudRate)))[3:0]) >> 1 where uart_ker_ck_pres is the UART input clock divided by a prescaler

This member configures the UART communication baud rate. The baud rate register is computed using the following formula:

LPUART:

Baud Rate Register = ((256 * lpuart_ker_ckpres) / ((huart->Init.BaudRate))) where lpuart_ker_ck_pres is the UART input clock divided by a prescaler

UART:

  • If oversampling is 16 or in LIN mode, Baud Rate Register = ((uart_ker_ckpres) / ((huart->Init.BaudRate)))
  • If oversampling is 8, Baud Rate Register[15:4] = ((2 * uart_ker_ckpres) / ((huart->Init.BaudRate)))[15:4] Baud Rate Register[3] = 0 Baud Rate Register[2:0] = (((2 * uart_ker_ckpres) / ((huart->Init.BaudRate)))[3:0]) >> 1 where uart_ker_ck_pres is the UART input clock divided by a prescaler

Definition at line 49 of file stm32f4xx_hal_uart.h.

◆ ClockPrescaler

uint32_t UART_InitTypeDef::ClockPrescaler

Specifies the prescaler value used to divide the UART clock source. This parameter can be a value of UART Clock Prescaler.

Definition at line 95 of file stm32h735/stm32h735g-dk/Drivers/STM32H7xx_HAL_Driver/Inc/stm32h7xx_hal_uart.h.

◆ HwFlowCtl

uint32_t UART_InitTypeDef::HwFlowCtl

Specifies whether the hardware flow control mode is enabled or disabled. This parameter can be a value of UART Hardware Flow Control

Specifies whether the hardware flow control mode is enabled or disabled. This parameter can be a value of UART Hardware Flow Control.

Definition at line 71 of file stm32f4xx_hal_uart.h.

◆ Mode

uint32_t UART_InitTypeDef::Mode

Specifies whether the Receive or Transmit mode is enabled or disabled. This parameter can be a value of UART Transfer Mode

Specifies whether the Receive or Transmit mode is enabled or disabled. This parameter can be a value of UART Transfer Mode.

Definition at line 68 of file stm32f4xx_hal_uart.h.

◆ OneBitSampling

uint32_t UART_InitTypeDef::OneBitSampling

Specifies whether a single sample or three samples' majority vote is selected. Selecting the single sample method increases the receiver tolerance to clock deviations. This parameter can be a value of UART One Bit Sampling Method.

Definition at line 82 of file stm32f7xx_hal_uart.h.

◆ OverSampling

uint32_t UART_InitTypeDef::OverSampling

Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher speed (up to fPCLK/8). This parameter can be a value of UART Over Sampling

Specifies whether the Over sampling 8 is enabled or disabled, to achieve higher speed (up to f_PCLK/8). This parameter can be a value of UART Over Sampling.

Definition at line 74 of file stm32f4xx_hal_uart.h.

◆ Parity

uint32_t UART_InitTypeDef::Parity

Specifies the parity mode. This parameter can be a value of UART Parity

Note
When parity is enabled, the computed parity is inserted at the MSB position of the transmitted data (9th bit when the word length is set to 9 data bits; 8th bit when the word length is set to 8 data bits).

Definition at line 61 of file stm32f4xx_hal_uart.h.

◆ StopBits

uint32_t UART_InitTypeDef::StopBits

Specifies the number of stop bits transmitted. This parameter can be a value of UART Number of Stop Bits

Specifies the number of stop bits transmitted. This parameter can be a value of UART Number of Stop Bits.

Definition at line 58 of file stm32f4xx_hal_uart.h.

◆ WordLength

uint32_t UART_InitTypeDef::WordLength

Specifies the number of data bits transmitted or received in a frame. This parameter can be a value of UART Word Length

Specifies the number of data bits transmitted or received in a frame. This parameter can be a value of UARTEx Word Length.

Definition at line 55 of file stm32f4xx_hal_uart.h.

The documentation for this struct was generated from the following files:

picovoice_driver
Author(s):
autogenerated on Fri Apr 1 2022 02:15:20