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doc: stm32f0: rcc: add groups and tags for bus prescalers

This commit is contained in:
Karl Palsson 2019-06-11 21:04:08 +00:00 committed by Karl Palsson
parent e8f03b4615
commit cfdb9b7856
2 changed files with 7 additions and 1 deletions
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6
include/libopencm3/stm32/f0/rcc.h
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@ -137,14 +137,19 @@ Control</b>
#define RCC_CFGR_PPRE_SHIFT 8
#define RCC_CFGR_PPRE (7 << RCC_CFGR_PPRE_SHIFT)
/** @defgroup rcc_cfgr_apb1pre RCC_CFGR APB prescale Factors
@{*/
#define RCC_CFGR_PPRE_NODIV (0 << RCC_CFGR_PPRE_SHIFT)
#define RCC_CFGR_PPRE_DIV2 (4 << RCC_CFGR_PPRE_SHIFT)
#define RCC_CFGR_PPRE_DIV4 (5 << RCC_CFGR_PPRE_SHIFT)
#define RCC_CFGR_PPRE_DIV8 (6 << RCC_CFGR_PPRE_SHIFT)
#define RCC_CFGR_PPRE_DIV16 (7 << RCC_CFGR_PPRE_SHIFT)
/**@}*/
#define RCC_CFGR_HPRE_SHIFT 4
#define RCC_CFGR_HPRE (0xf << RCC_CFGR_HPRE_SHIFT)
/** @defgroup rcc_cfgr_ahbpre RCC_CFGR AHB prescale Factors
@{*/
#define RCC_CFGR_HPRE_NODIV (0x0 << RCC_CFGR_HPRE_SHIFT)
#define RCC_CFGR_HPRE_DIV2 (0x8 << RCC_CFGR_HPRE_SHIFT)
#define RCC_CFGR_HPRE_DIV4 (0x9 << RCC_CFGR_HPRE_SHIFT)
@ -154,6 +159,7 @@ Control</b>
#define RCC_CFGR_HPRE_DIV128 (0xd << RCC_CFGR_HPRE_SHIFT)
#define RCC_CFGR_HPRE_DIV256 (0xe << RCC_CFGR_HPRE_SHIFT)
#define RCC_CFGR_HPRE_DIV512 (0xf << RCC_CFGR_HPRE_SHIFT)
/**@}*/
#define RCC_CFGR_SWS_SHIFT 2
#define RCC_CFGR_SWS (3 << RCC_CFGR_SWS_SHIFT)

2
lib/stm32/f0/rcc.c
View File

@ -467,7 +467,7 @@ void rcc_set_pllxtpre(uint32_t pllxtpre)
/*---------------------------------------------------------------------------*/
/** @brief RCC Set the APB Prescale Factor.
*
* @param[in] ppre1 Unsigned int32. APB prescale factor @ref rcc_cfgr_apb1pre
* @param[in] ppre Unsigned int32. APB prescale factor @ref rcc_cfgr_apb1pre
*/
void rcc_set_ppre(uint32_t ppre)