diff options
Diffstat (limited to 'nuttx/arch/arm/src/stm32/stm32f40xxx_rcc.c')
-rw-r--r-- | nuttx/arch/arm/src/stm32/stm32f40xxx_rcc.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32f40xxx_rcc.c b/nuttx/arch/arm/src/stm32/stm32f40xxx_rcc.c index 4c74fa912..46e847e54 100644 --- a/nuttx/arch/arm/src/stm32/stm32f40xxx_rcc.c +++ b/nuttx/arch/arm/src/stm32/stm32f40xxx_rcc.c @@ -86,7 +86,7 @@ static inline void rcc_reset(void) regval = getreg32(STM32_RCC_CR); regval &= ~(RCC_CR_HSEON|RCC_CR_CSSON|RCC_CR_PLLON); putreg32(regval, STM32_RCC_CR); - + /* Reset PLLCFGR register to reset default */ putreg32(RCC_PLLCFG_RESET, STM32_RCC_PLLCFG); @@ -586,7 +586,7 @@ static inline void rcc_enableapb2(void) * * Description: * Called to change to new clock based on settings in board.h - * + * * NOTE: This logic would need to be extended if you need to select low- * power clocking modes! ****************************************************************************/ @@ -598,7 +598,7 @@ static void stm32_stdclockconfig(void) volatile int32_t timeout; /* Enable External High-Speed Clock (HSE) */ - + regval = getreg32(STM32_RCC_CR); regval |= RCC_CR_HSEON; /* Enable HSE */ putreg32(regval, STM32_RCC_CR); @@ -642,7 +642,7 @@ static void stm32_stdclockconfig(void) putreg32(regval, STM32_PWR_CR); /* Set the HCLK source/divider */ - + regval = getreg32(STM32_RCC_CFGR); regval &= ~RCC_CFGR_HPRE_MASK; regval |= STM32_RCC_CFGR_HPRE; @@ -654,7 +654,7 @@ static void stm32_stdclockconfig(void) regval &= ~RCC_CFGR_PPRE2_MASK; regval |= STM32_RCC_CFGR_PPRE2; putreg32(regval, STM32_RCC_CFGR); - + /* Set the PCLK1 divider */ regval = getreg32(STM32_RCC_CFGR); @@ -673,13 +673,13 @@ static void stm32_stdclockconfig(void) regval = getreg32(STM32_RCC_CR); regval |= RCC_CR_PLLON; putreg32(regval, STM32_RCC_CR); - + /* Wait until the PLL is ready */ - + while ((getreg32(STM32_RCC_CR) & RCC_CR_PLLRDY) == 0) { } - + #if defined(CONFIG_STM32_STM32F429) /* Enable the Over-drive to extend the clock frequency to 180 Mhz */ @@ -716,7 +716,7 @@ static void stm32_stdclockconfig(void) putreg32(regval, STM32_RCC_CFGR); /* Wait until the PLL source is used as the system clock source */ - + while ((getreg32(STM32_RCC_CFGR) & RCC_CFGR_SWS_MASK) != RCC_CFGR_SWS_PLL) { } |