Collaboration diagram for Get Clock source:
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Macros | |
| #define | __HAL_RCC_SYSCLK_CONFIG(__SYSCLKSOURCE__) MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, (__SYSCLKSOURCE__)) |
| Macro to configure the system clock source. More... | |
| #define | __HAL_RCC_GET_SYSCLK_SOURCE() ((uint32_t)(READ_BIT(RCC->CFGR,RCC_CFGR_SWS))) |
| Macro to get the clock source used as system clock. More... | |
Detailed Description
Macro Definition Documentation
◆ __HAL_RCC_GET_SYSCLK_SOURCE
| #define __HAL_RCC_GET_SYSCLK_SOURCE | ( | ) | ((uint32_t)(READ_BIT(RCC->CFGR,RCC_CFGR_SWS))) |
Macro to get the clock source used as system clock.
- Return values
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The clock source used as system clock. The returned value can be one of the following: - RCC_SYSCLKSOURCE_STATUS_HSI HSI used as system clock
- RCC_SYSCLKSOURCE_STATUS_HSE HSE used as system clock
- RCC_SYSCLKSOURCE_STATUS_PLLCLK PLL used as system clock
◆ __HAL_RCC_SYSCLK_CONFIG
| #define __HAL_RCC_SYSCLK_CONFIG | ( | __SYSCLKSOURCE__ | ) | MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, (__SYSCLKSOURCE__)) |
Macro to configure the system clock source.
- Parameters
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<strong>SYSCLKSOURCE</strong> specifies the system clock source. This parameter can be one of the following values: - RCC_SYSCLKSOURCE_HSI HSI oscillator is used as system clock source.
- RCC_SYSCLKSOURCE_HSE HSE oscillator is used as system clock source.
- RCC_SYSCLKSOURCE_PLLCLK PLL output is used as system clock source.
