STM32F4xx HAL Documentation
Hardware Abstraction Layer for STM32F4 familiy
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RCC Extended MCOx Clock Config
Collaboration diagram for RCC Extended MCOx Clock Config:

Macros

#define __HAL_RCC_MCO1_CONFIG(__MCOCLKSOURCE__, __MCODIV__)
 Macro to configure the MCO1 clock.
 
#define __HAL_RCC_MCO2_CONFIG(__MCOCLKSOURCE__, __MCODIV__)
 Macro to configure the MCO2 clock.
 

Detailed Description

Macro Definition Documentation

◆ __HAL_RCC_MCO1_CONFIG

#define __HAL_RCC_MCO1_CONFIG ( __MCOCLKSOURCE__,
__MCODIV__ )

#include <stm32f4xx_hal_rcc.h>

Value:
MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO1 | RCC_CFGR_MCO1PRE), ((__MCOCLKSOURCE__) | (__MCODIV__)))

Macro to configure the MCO1 clock.

Parameters
__MCOCLKSOURCE__specifies the MCO clock source. This parameter can be one of the following values:
  • RCC_MCO1SOURCE_HSI: HSI clock selected as MCO1 source
  • RCC_MCO1SOURCE_LSE: LSE clock selected as MCO1 source
  • RCC_MCO1SOURCE_HSE: HSE clock selected as MCO1 source
  • RCC_MCO1SOURCE_PLLCLK: main PLL clock selected as MCO1 source
__MCODIV__specifies the MCO clock prescaler. This parameter can be one of the following values:
  • RCC_MCODIV_1: no division applied to MCOx clock
  • RCC_MCODIV_2: division by 2 applied to MCOx clock
  • RCC_MCODIV_3: division by 3 applied to MCOx clock
  • RCC_MCODIV_4: division by 4 applied to MCOx clock
  • RCC_MCODIV_5: division by 5 applied to MCOx clock

Definition at line 1113 of file stm32f4xx_hal_rcc.h.

◆ __HAL_RCC_MCO2_CONFIG

#define __HAL_RCC_MCO2_CONFIG ( __MCOCLKSOURCE__,
__MCODIV__ )

#include <stm32f4xx_hal_rcc.h>

Value:
MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO2 | RCC_CFGR_MCO2PRE), ((__MCOCLKSOURCE__) | ((__MCODIV__) << 3U)));

Macro to configure the MCO2 clock.

Parameters
__MCOCLKSOURCE__specifies the MCO clock source. This parameter can be one of the following values:
  • RCC_MCO2SOURCE_SYSCLK: System clock (SYSCLK) selected as MCO2 source
  • RCC_MCO2SOURCE_PLLI2SCLK: PLLI2S clock selected as MCO2 source, available for all STM32F4 devices except STM32F410xx
  • RCC_MCO2SOURCE_I2SCLK: I2SCLK clock selected as MCO2 source, available only for STM32F410Rx devices
  • RCC_MCO2SOURCE_HSE: HSE clock selected as MCO2 source
  • RCC_MCO2SOURCE_PLLCLK: main PLL clock selected as MCO2 source
__MCODIV__specifies the MCO clock prescaler. This parameter can be one of the following values:
  • RCC_MCODIV_1: no division applied to MCOx clock
  • RCC_MCODIV_2: division by 2 applied to MCOx clock
  • RCC_MCODIV_3: division by 3 applied to MCOx clock
  • RCC_MCODIV_4: division by 4 applied to MCOx clock
  • RCC_MCODIV_5: division by 5 applied to MCOx clock
Note
For STM32F410Rx devices, to output I2SCLK clock on MCO2, you should have at least one of the SPI clocks enabled (SPI1, SPI2 or SPI5).

Definition at line 1134 of file stm32f4xx_hal_rcc.h.