From f217c7a99c4a1ded3f9c53a121433cc66d3c2063 Mon Sep 17 00:00:00 2001 From: gdisirio Date: Fri, 13 Nov 2009 21:16:50 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1286 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- .../stm32lib/src/stm32f10x_rcc.c | 1447 -------------------- 1 file changed, 1447 deletions(-) delete mode 100644 demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_rcc.c (limited to 'demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_rcc.c') diff --git a/demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_rcc.c b/demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_rcc.c deleted file mode 100644 index d506eb9fb..000000000 --- a/demos/ARMCM3-STM32F103-GCC/stm32lib/src/stm32f10x_rcc.c +++ /dev/null @@ -1,1447 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f10x_rcc.c - * @author MCD Application Team - * @version V3.1.0 - * @date 06/19/2009 - * @brief This file provides all the RCC firmware functions. - ****************************************************************************** - * @copy - * - * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS - * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE - * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY - * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING - * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE - * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. - * - *

© COPYRIGHT 2009 STMicroelectronics

- */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f10x_rcc.h" - -/** @addtogroup STM32F10x_StdPeriph_Driver - * @{ - */ - -/** @defgroup RCC - * @brief RCC driver modules - * @{ - */ - -/** @defgroup RCC_Private_TypesDefinitions - * @{ - */ - -/** - * @} - */ - -/** @defgroup RCC_Private_Defines - * @{ - */ - -/* ------------ RCC registers bit address in the alias region ----------- */ -#define RCC_OFFSET (RCC_BASE - PERIPH_BASE) - -/* --- CR Register ---*/ - -/* Alias word address of HSION bit */ -#define CR_OFFSET (RCC_OFFSET + 0x00) -#define HSION_BitNumber 0x00 -#define CR_HSION_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (HSION_BitNumber * 4)) - -/* Alias word address of PLLON bit */ -#define PLLON_BitNumber 0x18 -#define CR_PLLON_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (PLLON_BitNumber * 4)) - -#ifdef STM32F10X_CL - /* Alias word address of PLL2ON bit */ - #define PLL2ON_BitNumber 0x1A - #define CR_PLL2ON_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (PLL2ON_BitNumber * 4)) - - /* Alias word address of PLL3ON bit */ - #define PLL3ON_BitNumber 0x1C - #define CR_PLL3ON_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (PLL3ON_BitNumber * 4)) -#endif /* STM32F10X_CL */ - -/* Alias word address of CSSON bit */ -#define CSSON_BitNumber 0x13 -#define CR_CSSON_BB (PERIPH_BB_BASE + (CR_OFFSET * 32) + (CSSON_BitNumber * 4)) - -/* --- CFGR Register ---*/ - -/* Alias word address of USBPRE bit */ -#define CFGR_OFFSET (RCC_OFFSET + 0x04) - -#ifndef STM32F10X_CL - #define USBPRE_BitNumber 0x16 - #define CFGR_USBPRE_BB (PERIPH_BB_BASE + (CFGR_OFFSET * 32) + (USBPRE_BitNumber * 4)) -#else - #define OTGFSPRE_BitNumber 0x16 - #define CFGR_OTGFSPRE_BB (PERIPH_BB_BASE + (CFGR_OFFSET * 32) + (OTGFSPRE_BitNumber * 4)) -#endif /* STM32F10X_CL */ - -/* --- BDCR Register ---*/ - -/* Alias word address of RTCEN bit */ -#define BDCR_OFFSET (RCC_OFFSET + 0x20) -#define RTCEN_BitNumber 0x0F -#define BDCR_RTCEN_BB (PERIPH_BB_BASE + (BDCR_OFFSET * 32) + (RTCEN_BitNumber * 4)) - -/* Alias word address of BDRST bit */ -#define BDRST_BitNumber 0x10 -#define BDCR_BDRST_BB (PERIPH_BB_BASE + (BDCR_OFFSET * 32) + (BDRST_BitNumber * 4)) - -/* --- CSR Register ---*/ - -/* Alias word address of LSION bit */ -#define CSR_OFFSET (RCC_OFFSET + 0x24) -#define LSION_BitNumber 0x00 -#define CSR_LSION_BB (PERIPH_BB_BASE + (CSR_OFFSET * 32) + (LSION_BitNumber * 4)) - -#ifdef STM32F10X_CL -/* --- CFGR2 Register ---*/ - - /* Alias word address of I2S2SRC bit */ - #define CFGR2_OFFSET (RCC_OFFSET + 0x2C) - #define I2S2SRC_BitNumber 0x11 - #define CFGR2_I2S2SRC_BB (PERIPH_BB_BASE + (CFGR2_OFFSET * 32) + (I2S2SRC_BitNumber * 4)) - - /* Alias word address of I2S3SRC bit */ - #define I2S3SRC_BitNumber 0x12 - #define CFGR2_I2S3SRC_BB (PERIPH_BB_BASE + (CFGR2_OFFSET * 32) + (I2S3SRC_BitNumber * 4)) -#endif /* STM32F10X_CL */ - -/* ---------------------- RCC registers bit mask ------------------------ */ - -/* CR register bit mask */ -#define CR_HSEBYP_Reset ((uint32_t)0xFFFBFFFF) -#define CR_HSEBYP_Set ((uint32_t)0x00040000) -#define CR_HSEON_Reset ((uint32_t)0xFFFEFFFF) -#define CR_HSEON_Set ((uint32_t)0x00010000) -#define CR_HSITRIM_Mask ((uint32_t)0xFFFFFF07) - -/* CFGR register bit mask */ -#ifndef STM32F10X_CL - #define CFGR_PLL_Mask ((uint32_t)0xFFC0FFFF) -#else - #define CFGR_PLL_Mask ((uint32_t)0xFFC2FFFF) -#endif /* STM32F10X_CL */ - -#define CFGR_PLLMull_Mask ((uint32_t)0x003C0000) -#define CFGR_PLLSRC_Mask ((uint32_t)0x00010000) -#define CFGR_PLLXTPRE_Mask ((uint32_t)0x00020000) -#define CFGR_SWS_Mask ((uint32_t)0x0000000C) -#define CFGR_SW_Mask ((uint32_t)0xFFFFFFFC) -#define CFGR_HPRE_Reset_Mask ((uint32_t)0xFFFFFF0F) -#define CFGR_HPRE_Set_Mask ((uint32_t)0x000000F0) -#define CFGR_PPRE1_Reset_Mask ((uint32_t)0xFFFFF8FF) -#define CFGR_PPRE1_Set_Mask ((uint32_t)0x00000700) -#define CFGR_PPRE2_Reset_Mask ((uint32_t)0xFFFFC7FF) -#define CFGR_PPRE2_Set_Mask ((uint32_t)0x00003800) -#define CFGR_ADCPRE_Reset_Mask ((uint32_t)0xFFFF3FFF) -#define CFGR_ADCPRE_Set_Mask ((uint32_t)0x0000C000) - -/* CSR register bit mask */ -#define CSR_RMVF_Set ((uint32_t)0x01000000) - -#ifdef STM32F10X_CL -/* CFGR2 register bit mask */ - #define CFGR2_PREDIV1SRC ((uint32_t)0x00010000) - #define CFGR2_PREDIV1 ((uint32_t)0x0000000F) - #define CFGR2_PREDIV2 ((uint32_t)0x000000F0) - #define CFGR2_PLL2MUL ((uint32_t)0x00000F00) - #define CFGR2_PLL3MUL ((uint32_t)0x0000F000) -#endif /* STM32F10X_CL */ - -/* RCC Flag Mask */ -#define FLAG_Mask ((uint8_t)0x1F) - -#ifndef HSI_Value -/* Typical Value of the HSI in Hz */ - #define HSI_Value ((uint32_t)8000000) -#endif /* HSI_Value */ - -/* CIR register byte 2 (Bits[15:8]) base address */ -#define CIR_BYTE2_ADDRESS ((uint32_t)0x40021009) - -/* CIR register byte 3 (Bits[23:16]) base address */ -#define CIR_BYTE3_ADDRESS ((uint32_t)0x4002100A) - -/* CFGR register byte 4 (Bits[31:24]) base address */ -#define CFGR_BYTE4_ADDRESS ((uint32_t)0x40021007) - -/* BDCR register base address */ -#define BDCR_ADDRESS (PERIPH_BASE + BDCR_OFFSET) - -#ifndef HSEStartUp_TimeOut -/* Time out for HSE start up */ - #define HSEStartUp_TimeOut ((uint16_t)0x0500) -#endif /* HSEStartUp_TimeOut */ - -/** - * @} - */ - -/** @defgroup RCC_Private_Macros - * @{ - */ - -/** - * @} - */ - -/** @defgroup RCC_Private_Variables - * @{ - */ - -static __I uint8_t APBAHBPrescTable[16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9}; -static __I uint8_t ADCPrescTable[4] = {2, 4, 6, 8}; - -/** - * @} - */ - -/** @defgroup RCC_Private_FunctionPrototypes - * @{ - */ - -/** - * @} - */ - -/** @defgroup RCC_Private_Functions - * @{ - */ - -/** - * @brief Resets the RCC clock configuration to the default reset state. - * @param None - * @retval None - */ -void RCC_DeInit(void) -{ - /* Set HSION bit */ - RCC->CR |= (uint32_t)0x00000001; - - /* Reset SW, HPRE, PPRE1, PPRE2, ADCPRE and MCO bits */ -#ifndef STM32F10X_CL - RCC->CFGR &= (uint32_t)0xF8FF0000; -#else - RCC->CFGR &= (uint32_t)0xF0FF0000; -#endif /* STM32F10X_CL */ - - /* Reset HSEON, CSSON and PLLON bits */ - RCC->CR &= (uint32_t)0xFEF6FFFF; - - /* Reset HSEBYP bit */ - RCC->CR &= (uint32_t)0xFFFBFFFF; - - /* Reset PLLSRC, PLLXTPRE, PLLMUL and USBPRE/OTGFSPRE bits */ - RCC->CFGR &= (uint32_t)0xFF80FFFF; - -#ifndef STM32F10X_CL - /* Disable all interrupts and clear pending bits */ - RCC->CIR = 0x009F0000; -#else - /* Reset PLL2ON and PLL3ON bits */ - RCC->CR &= (uint32_t)0xEBFFFFFF; - - /* Disable all interrupts and clear pending bits */ - RCC->CIR = 0x00FF0000; - - /* Reset CFGR2 register */ - RCC->CFGR2 = 0x00000000; -#endif /* STM32F10X_CL */ -} - -/** - * @brief Configures the External High Speed oscillator (HSE). - * @note HSE can not be stopped if it is used directly or through the PLL as system clock. - * @param RCC_HSE: specifies the new state of the HSE. - * This parameter can be one of the following values: - * @arg RCC_HSE_OFF: HSE oscillator OFF - * @arg RCC_HSE_ON: HSE oscillator ON - * @arg RCC_HSE_Bypass: HSE oscillator bypassed with external clock - * @retval None - */ -void RCC_HSEConfig(uint32_t RCC_HSE) -{ - /* Check the parameters */ - assert_param(IS_RCC_HSE(RCC_HSE)); - /* Reset HSEON and HSEBYP bits before configuring the HSE ------------------*/ - /* Reset HSEON bit */ - RCC->CR &= CR_HSEON_Reset; - /* Reset HSEBYP bit */ - RCC->CR &= CR_HSEBYP_Reset; - /* Configure HSE (RCC_HSE_OFF is already covered by the code section above) */ - switch(RCC_HSE) - { - case RCC_HSE_ON: - /* Set HSEON bit */ - RCC->CR |= CR_HSEON_Set; - break; - - case RCC_HSE_Bypass: - /* Set HSEBYP and HSEON bits */ - RCC->CR |= CR_HSEBYP_Set | CR_HSEON_Set; - break; - - default: - break; - } -} - -/** - * @brief Waits for HSE start-up. - * @param None - * @retval An ErrorStatus enumuration value: - * - SUCCESS: HSE oscillator is stable and ready to use - * - ERROR: HSE oscillator not yet ready - */ -ErrorStatus RCC_WaitForHSEStartUp(void) -{ - __IO uint32_t StartUpCounter = 0; - ErrorStatus status = ERROR; - FlagStatus HSEStatus = RESET; - - /* Wait till HSE is ready and if Time out is reached exit */ - do - { - HSEStatus = RCC_GetFlagStatus(RCC_FLAG_HSERDY); - StartUpCounter++; - } while((StartUpCounter != HSEStartUp_TimeOut) && (HSEStatus == RESET)); - - if (RCC_GetFlagStatus(RCC_FLAG_HSERDY) != RESET) - { - status = SUCCESS; - } - else - { - status = ERROR; - } - return (status); -} - -/** - * @brief Adjusts the Internal High Speed oscillator (HSI) calibration value. - * @param HSICalibrationValue: specifies the calibration trimming value. - * This parameter must be a number between 0 and 0x1F. - * @retval None - */ -void RCC_AdjustHSICalibrationValue(uint8_t HSICalibrationValue) -{ - uint32_t tmpreg = 0; - /* Check the parameters */ - assert_param(IS_RCC_CALIBRATION_VALUE(HSICalibrationValue)); - tmpreg = RCC->CR; - /* Clear HSITRIM[4:0] bits */ - tmpreg &= CR_HSITRIM_Mask; - /* Set the HSITRIM[4:0] bits according to HSICalibrationValue value */ - tmpreg |= (uint32_t)HSICalibrationValue << 3; - /* Store the new value */ - RCC->CR = tmpreg; -} - -/** - * @brief Enables or disables the Internal High Speed oscillator (HSI). - * @note HSI can not be stopped if it is used directly or through the PLL as system clock. - * @param NewState: new state of the HSI. This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_HSICmd(FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_FUNCTIONAL_STATE(NewState)); - *(__IO uint32_t *) CR_HSION_BB = (uint32_t)NewState; -} - -/** - * @brief Configures the PLL clock source and multiplication factor. - * @note This function must be used only when the PLL is disabled. - * @param RCC_PLLSource: specifies the PLL entry clock source. - * For @b STM32_Connectivity_line_devices, this parameter can be one of the - * following values: - * @arg RCC_PLLSource_HSI_Div2: HSI oscillator clock divided by 2 selected as PLL clock entry - * @arg RCC_PLLSource_PREDIV1: PREDIV1 clock selected as PLL clock entry - * For @b other_STM32_devices, this parameter can be one of the following values: - * @arg RCC_PLLSource_HSI_Div2: HSI oscillator clock divided by 2 selected as PLL clock entry - * @arg RCC_PLLSource_HSE_Div1: HSE oscillator clock selected as PLL clock entry - * @arg RCC_PLLSource_HSE_Div2: HSE oscillator clock divided by 2 selected as PLL clock entry - * @param RCC_PLLMul: specifies the PLL multiplication factor. - * For @b STM32_Connectivity_line_devices, this parameter can be RCC_PLLMul_x where x:{[4,9], 6_5} - * For @b other_STM32_devices, this parameter can be RCC_PLLMul_x where x:[2,16] - * @retval None - */ -void RCC_PLLConfig(uint32_t RCC_PLLSource, uint32_t RCC_PLLMul) -{ - uint32_t tmpreg = 0; - - /* Check the parameters */ - assert_param(IS_RCC_PLL_SOURCE(RCC_PLLSource)); - assert_param(IS_RCC_PLL_MUL(RCC_PLLMul)); - - tmpreg = RCC->CFGR; - /* Clear PLLSRC, PLLXTPRE and PLLMUL[3:0] bits */ - tmpreg &= CFGR_PLL_Mask; - /* Set the PLL configuration bits */ - tmpreg |= RCC_PLLSource | RCC_PLLMul; - /* Store the new value */ - RCC->CFGR = tmpreg; -} - -/** - * @brief Enables or disables the PLL. - * @note The PLL can not be disabled if it is used as system clock. - * @param NewState: new state of the PLL. This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_PLLCmd(FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - *(__IO uint32_t *) CR_PLLON_BB = (uint32_t)NewState; -} - -#ifdef STM32F10X_CL -/** - * @brief Configures the PREDIV1 division factor. - * @note - * - This function must be used only when the PLL is disabled. - * - This function applies only to STM32 Connectivity line devices. - * @param RCC_PREDIV1_Source: specifies the PREDIV1 clock source. - * This parameter can be one of the following values: - * @arg RCC_PREDIV1_Source_HSE: HSE selected as PREDIV1 clock - * @arg RCC_PREDIV1_Source_PLL2: PLL2 selected as PREDIV1 clock - * @param RCC_PREDIV1_Div: specifies the PREDIV1 clock division factor. - * This parameter can be RCC_PREDIV1_Divx where x:[1,16] - * @retval None - */ -void RCC_PREDIV1Config(uint32_t RCC_PREDIV1_Source, uint32_t RCC_PREDIV1_Div) -{ - uint32_t tmpreg = 0; - - /* Check the parameters */ - assert_param(IS_RCC_PREDIV1_SOURCE(RCC_PREDIV1_Source)); - assert_param(IS_RCC_PREDIV1(RCC_PREDIV1_Div)); - - tmpreg = RCC->CFGR2; - /* Clear PREDIV1[3:0] and PREDIV1SRC bits */ - tmpreg &= ~(CFGR2_PREDIV1 | CFGR2_PREDIV1SRC); - /* Set the PREDIV1 clock source and division factor */ - tmpreg |= RCC_PREDIV1_Source | RCC_PREDIV1_Div ; - /* Store the new value */ - RCC->CFGR2 = tmpreg; -} - - -/** - * @brief Configures the PREDIV2 division factor. - * @note - * - This function must be used only when both PLL2 and PLL3 are disabled. - * - This function applies only to STM32 Connectivity line devices. - * @param RCC_PREDIV2_Div: specifies the PREDIV2 clock division factor. - * This parameter can be RCC_PREDIV2_Divx where x:[1,16] - * @retval None - */ -void RCC_PREDIV2Config(uint32_t RCC_PREDIV2_Div) -{ - uint32_t tmpreg = 0; - - /* Check the parameters */ - assert_param(IS_RCC_PREDIV2(RCC_PREDIV2_Div)); - - tmpreg = RCC->CFGR2; - /* Clear PREDIV2[3:0] bits */ - tmpreg &= ~CFGR2_PREDIV2; - /* Set the PREDIV2 division factor */ - tmpreg |= RCC_PREDIV2_Div; - /* Store the new value */ - RCC->CFGR2 = tmpreg; -} - -/** - * @brief Configures the PLL2 multiplication factor. - * @note - * - This function must be used only when the PLL2 is disabled. - * - This function applies only to STM32 Connectivity line devices. - * @param RCC_PLL2Mul: specifies the PLL2 multiplication factor. - * This parameter can be RCC_PLL2Mul_x where x:{[8,14], 16, 20} - * @retval None - */ -void RCC_PLL2Config(uint32_t RCC_PLL2Mul) -{ - uint32_t tmpreg = 0; - - /* Check the parameters */ - assert_param(IS_RCC_PLL2_MUL(RCC_PLL2Mul)); - - tmpreg = RCC->CFGR2; - /* Clear PLL2Mul[3:0] bits */ - tmpreg &= ~CFGR2_PLL2MUL; - /* Set the PLL2 configuration bits */ - tmpreg |= RCC_PLL2Mul; - /* Store the new value */ - RCC->CFGR2 = tmpreg; -} - - -/** - * @brief Enables or disables the PLL2. - * @note - * - The PLL2 can not be disabled if it is used indirectly as system clock - * (i.e. it is used as PLL clock entry that is used as System clock). - * - This function applies only to STM32 Connectivity line devices. - * @param NewState: new state of the PLL2. This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_PLL2Cmd(FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - *(__IO uint32_t *) CR_PLL2ON_BB = (uint32_t)NewState; -} - - -/** - * @brief Configures the PLL3 multiplication factor. - * @note - * - This function must be used only when the PLL3 is disabled. - * - This function applies only to STM32 Connectivity line devices. - * @param RCC_PLL3Mul: specifies the PLL3 multiplication factor. - * This parameter can be RCC_PLL3Mul_x where x:{[8,14], 16, 20} - * @retval None - */ -void RCC_PLL3Config(uint32_t RCC_PLL3Mul) -{ - uint32_t tmpreg = 0; - - /* Check the parameters */ - assert_param(IS_RCC_PLL3_MUL(RCC_PLL3Mul)); - - tmpreg = RCC->CFGR2; - /* Clear PLL3Mul[3:0] bits */ - tmpreg &= ~CFGR2_PLL3MUL; - /* Set the PLL3 configuration bits */ - tmpreg |= RCC_PLL3Mul; - /* Store the new value */ - RCC->CFGR2 = tmpreg; -} - - -/** - * @brief Enables or disables the PLL3. - * @note This function applies only to STM32 Connectivity line devices. - * @param NewState: new state of the PLL3. This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_PLL3Cmd(FunctionalState NewState) -{ - /* Check the parameters */ - - assert_param(IS_FUNCTIONAL_STATE(NewState)); - *(__IO uint32_t *) CR_PLL3ON_BB = (uint32_t)NewState; -} -#endif /* STM32F10X_CL */ - -/** - * @brief Configures the system clock (SYSCLK). - * @param RCC_SYSCLKSource: specifies the clock source used as system clock. - * This parameter can be one of the following values: - * @arg RCC_SYSCLKSource_HSI: HSI selected as system clock - * @arg RCC_SYSCLKSource_HSE: HSE selected as system clock - * @arg RCC_SYSCLKSource_PLLCLK: PLL selected as system clock - * @retval None - */ -void RCC_SYSCLKConfig(uint32_t RCC_SYSCLKSource) -{ - uint32_t tmpreg = 0; - /* Check the parameters */ - assert_param(IS_RCC_SYSCLK_SOURCE(RCC_SYSCLKSource)); - tmpreg = RCC->CFGR; - /* Clear SW[1:0] bits */ - tmpreg &= CFGR_SW_Mask; - /* Set SW[1:0] bits according to RCC_SYSCLKSource value */ - tmpreg |= RCC_SYSCLKSource; - /* Store the new value */ - RCC->CFGR = tmpreg; -} - -/** - * @brief Returns the clock source used as system clock. - * @param None - * @retval The clock source used as system clock. The returned value can - * be one of the following: - * - 0x00: HSI used as system clock - * - 0x04: HSE used as system clock - * - 0x08: PLL used as system clock - */ -uint8_t RCC_GetSYSCLKSource(void) -{ - return ((uint8_t)(RCC->CFGR & CFGR_SWS_Mask)); -} - -/** - * @brief Configures the AHB clock (HCLK). - * @param RCC_SYSCLK: defines the AHB clock divider. This clock is derived from - * the system clock (SYSCLK). - * This parameter can be one of the following values: - * @arg RCC_SYSCLK_Div1: AHB clock = SYSCLK - * @arg RCC_SYSCLK_Div2: AHB clock = SYSCLK/2 - * @arg RCC_SYSCLK_Div4: AHB clock = SYSCLK/4 - * @arg RCC_SYSCLK_Div8: AHB clock = SYSCLK/8 - * @arg RCC_SYSCLK_Div16: AHB clock = SYSCLK/16 - * @arg RCC_SYSCLK_Div64: AHB clock = SYSCLK/64 - * @arg RCC_SYSCLK_Div128: AHB clock = SYSCLK/128 - * @arg RCC_SYSCLK_Div256: AHB clock = SYSCLK/256 - * @arg RCC_SYSCLK_Div512: AHB clock = SYSCLK/512 - * @retval None - */ -void RCC_HCLKConfig(uint32_t RCC_SYSCLK) -{ - uint32_t tmpreg = 0; - /* Check the parameters */ - assert_param(IS_RCC_HCLK(RCC_SYSCLK)); - tmpreg = RCC->CFGR; - /* Clear HPRE[3:0] bits */ - tmpreg &= CFGR_HPRE_Reset_Mask; - /* Set HPRE[3:0] bits according to RCC_SYSCLK value */ - tmpreg |= RCC_SYSCLK; - /* Store the new value */ - RCC->CFGR = tmpreg; -} - -/** - * @brief Configures the Low Speed APB clock (PCLK1). - * @param RCC_HCLK: defines the APB1 clock divider. This clock is derived from - * the AHB clock (HCLK). - * This parameter can be one of the following values: - * @arg RCC_HCLK_Div1: APB1 clock = HCLK - * @arg RCC_HCLK_Div2: APB1 clock = HCLK/2 - * @arg RCC_HCLK_Div4: APB1 clock = HCLK/4 - * @arg RCC_HCLK_Div8: APB1 clock = HCLK/8 - * @arg RCC_HCLK_Div16: APB1 clock = HCLK/16 - * @retval None - */ -void RCC_PCLK1Config(uint32_t RCC_HCLK) -{ - uint32_t tmpreg = 0; - /* Check the parameters */ - assert_param(IS_RCC_PCLK(RCC_HCLK)); - tmpreg = RCC->CFGR; - /* Clear PPRE1[2:0] bits */ - tmpreg &= CFGR_PPRE1_Reset_Mask; - /* Set PPRE1[2:0] bits according to RCC_HCLK value */ - tmpreg |= RCC_HCLK; - /* Store the new value */ - RCC->CFGR = tmpreg; -} - -/** - * @brief Configures the High Speed APB clock (PCLK2). - * @param RCC_HCLK: defines the APB2 clock divider. This clock is derived from - * the AHB clock (HCLK). - * This parameter can be one of the following values: - * @arg RCC_HCLK_Div1: APB2 clock = HCLK - * @arg RCC_HCLK_Div2: APB2 clock = HCLK/2 - * @arg RCC_HCLK_Div4: APB2 clock = HCLK/4 - * @arg RCC_HCLK_Div8: APB2 clock = HCLK/8 - * @arg RCC_HCLK_Div16: APB2 clock = HCLK/16 - * @retval None - */ -void RCC_PCLK2Config(uint32_t RCC_HCLK) -{ - uint32_t tmpreg = 0; - /* Check the parameters */ - assert_param(IS_RCC_PCLK(RCC_HCLK)); - tmpreg = RCC->CFGR; - /* Clear PPRE2[2:0] bits */ - tmpreg &= CFGR_PPRE2_Reset_Mask; - /* Set PPRE2[2:0] bits according to RCC_HCLK value */ - tmpreg |= RCC_HCLK << 3; - /* Store the new value */ - RCC->CFGR = tmpreg; -} - -/** - * @brief Enables or disables the specified RCC interrupts. - * @param RCC_IT: specifies the RCC interrupt sources to be enabled or disabled. - * - * For @b STM32_Connectivity_line_devices, this parameter can be any combination - * of the following values - * @arg RCC_IT_LSIRDY: LSI ready interrupt - * @arg RCC_IT_LSERDY: LSE ready interrupt - * @arg RCC_IT_HSIRDY: HSI ready interrupt - * @arg RCC_IT_HSERDY: HSE ready interrupt - * @arg RCC_IT_PLLRDY: PLL ready interrupt - * @arg RCC_IT_PLL2RDY: PLL2 ready interrupt - * @arg RCC_IT_PLL3RDY: PLL3 ready interrupt - * - * For @b other_STM32_devices, this parameter can be any combination of the - * following values - * @arg RCC_IT_LSIRDY: LSI ready interrupt - * @arg RCC_IT_LSERDY: LSE ready interrupt - * @arg RCC_IT_HSIRDY: HSI ready interrupt - * @arg RCC_IT_HSERDY: HSE ready interrupt - * @arg RCC_IT_PLLRDY: PLL ready interrupt - * - * @param NewState: new state of the specified RCC interrupts. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_ITConfig(uint8_t RCC_IT, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_RCC_IT(RCC_IT)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if (NewState != DISABLE) - { - /* Perform Byte access to RCC_CIR bits to enable the selected interrupts */ - *(__IO uint8_t *) CIR_BYTE2_ADDRESS |= RCC_IT; - } - else - { - /* Perform Byte access to RCC_CIR bits to disable the selected interrupts */ - *(__IO uint8_t *) CIR_BYTE2_ADDRESS &= (uint8_t)~RCC_IT; - } -} - -#ifndef STM32F10X_CL -/** - * @brief Configures the USB clock (USBCLK). - * @param RCC_USBCLKSource: specifies the USB clock source. This clock is - * derived from the PLL output. - * This parameter can be one of the following values: - * @arg RCC_USBCLKSource_PLLCLK_1Div5: PLL clock divided by 1,5 selected as USB - * clock source - * @arg RCC_USBCLKSource_PLLCLK_Div1: PLL clock selected as USB clock source - * @retval None - */ -void RCC_USBCLKConfig(uint32_t RCC_USBCLKSource) -{ - /* Check the parameters */ - assert_param(IS_RCC_USBCLK_SOURCE(RCC_USBCLKSource)); - - *(__IO uint32_t *) CFGR_USBPRE_BB = RCC_USBCLKSource; -} -#else -/** - * @brief Configures the USB OTG FS clock (OTGFSCLK). - * This function applies only to STM32 Connectivity line devices. - * @param RCC_OTGFSCLKSource: specifies the USB OTG FS clock source. - * This clock is derived from the PLL output. - * This parameter can be one of the following values: - * @arg RCC_OTGFSCLKSource_PLLVCO_Div3: PLL VCO clock divided by 2 selected as USB OTG FS clock source - * @arg RCC_OTGFSCLKSource_PLLVCO_Div2: PLL VCO clock divided by 2 selected as USB OTG FS clock source - * @retval None - */ -void RCC_OTGFSCLKConfig(uint32_t RCC_OTGFSCLKSource) -{ - /* Check the parameters */ - assert_param(IS_RCC_OTGFSCLK_SOURCE(RCC_OTGFSCLKSource)); - - *(__IO uint32_t *) CFGR_OTGFSPRE_BB = RCC_OTGFSCLKSource; -} -#endif /* STM32F10X_CL */ - -/** - * @brief Configures the ADC clock (ADCCLK). - * @param RCC_PCLK2: defines the ADC clock divider. This clock is derived from - * the APB2 clock (PCLK2). - * This parameter can be one of the following values: - * @arg RCC_PCLK2_Div2: ADC clock = PCLK2/2 - * @arg RCC_PCLK2_Div4: ADC clock = PCLK2/4 - * @arg RCC_PCLK2_Div6: ADC clock = PCLK2/6 - * @arg RCC_PCLK2_Div8: ADC clock = PCLK2/8 - * @retval None - */ -void RCC_ADCCLKConfig(uint32_t RCC_PCLK2) -{ - uint32_t tmpreg = 0; - /* Check the parameters */ - assert_param(IS_RCC_ADCCLK(RCC_PCLK2)); - tmpreg = RCC->CFGR; - /* Clear ADCPRE[1:0] bits */ - tmpreg &= CFGR_ADCPRE_Reset_Mask; - /* Set ADCPRE[1:0] bits according to RCC_PCLK2 value */ - tmpreg |= RCC_PCLK2; - /* Store the new value */ - RCC->CFGR = tmpreg; -} - -#ifdef STM32F10X_CL -/** - * @brief Configures the I2S2 clock source(I2S2CLK). - * @note - * - This function must be called before enabling I2S2 APB clock. - * - This function applies only to STM32 Connectivity line devices. - * @param RCC_I2S2CLKSource: specifies the I2S2 clock source. - * This parameter can be one of the following values: - * @arg RCC_I2S2CLKSource_SYSCLK: system clock selected as I2S2 clock entry - * @arg RCC_I2S2CLKSource_PLL3_VCO: PLL3 VCO clock selected as I2S2 clock entry - * @retval None - */ -void RCC_I2S2CLKConfig(uint32_t RCC_I2S2CLKSource) -{ - /* Check the parameters */ - assert_param(IS_RCC_I2S2CLK_SOURCE(RCC_I2S2CLKSource)); - - *(__IO uint32_t *) CFGR2_I2S2SRC_BB = RCC_I2S2CLKSource; -} - -/** - * @brief Configures the I2S3 clock source(I2S2CLK). - * @note - * - This function must be called before enabling I2S3 APB clock. - * - This function applies only to STM32 Connectivity line devices. - * @param RCC_I2S3CLKSource: specifies the I2S3 clock source. - * This parameter can be one of the following values: - * @arg RCC_I2S3CLKSource_SYSCLK: system clock selected as I2S3 clock entry - * @arg RCC_I2S3CLKSource_PLL3_VCO: PLL3 VCO clock selected as I2S3 clock entry - * @retval None - */ -void RCC_I2S3CLKConfig(uint32_t RCC_I2S3CLKSource) -{ - /* Check the parameters */ - assert_param(IS_RCC_I2S3CLK_SOURCE(RCC_I2S3CLKSource)); - - *(__IO uint32_t *) CFGR2_I2S3SRC_BB = RCC_I2S3CLKSource; -} -#endif /* STM32F10X_CL */ - -/** - * @brief Configures the External Low Speed oscillator (LSE). - * @param RCC_LSE: specifies the new state of the LSE. - * This parameter can be one of the following values: - * @arg RCC_LSE_OFF: LSE oscillator OFF - * @arg RCC_LSE_ON: LSE oscillator ON - * @arg RCC_LSE_Bypass: LSE oscillator bypassed with external clock - * @retval None - */ -void RCC_LSEConfig(uint8_t RCC_LSE) -{ - /* Check the parameters */ - assert_param(IS_RCC_LSE(RCC_LSE)); - /* Reset LSEON and LSEBYP bits before configuring the LSE ------------------*/ - /* Reset LSEON bit */ - *(__IO uint8_t *) BDCR_ADDRESS = RCC_LSE_OFF; - /* Reset LSEBYP bit */ - *(__IO uint8_t *) BDCR_ADDRESS = RCC_LSE_OFF; - /* Configure LSE (RCC_LSE_OFF is already covered by the code section above) */ - switch(RCC_LSE) - { - case RCC_LSE_ON: - /* Set LSEON bit */ - *(__IO uint8_t *) BDCR_ADDRESS = RCC_LSE_ON; - break; - - case RCC_LSE_Bypass: - /* Set LSEBYP and LSEON bits */ - *(__IO uint8_t *) BDCR_ADDRESS = RCC_LSE_Bypass | RCC_LSE_ON; - break; - - default: - break; - } -} - -/** - * @brief Enables or disables the Internal Low Speed oscillator (LSI). - * @note LSI can not be disabled if the IWDG is running. - * @param NewState: new state of the LSI. This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_LSICmd(FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_FUNCTIONAL_STATE(NewState)); - *(__IO uint32_t *) CSR_LSION_BB = (uint32_t)NewState; -} - -/** - * @brief Configures the RTC clock (RTCCLK). - * @note Once the RTC clock is selected it can’t be changed unless the Backup domain is reset. - * @param RCC_RTCCLKSource: specifies the RTC clock source. - * This parameter can be one of the following values: - * @arg RCC_RTCCLKSource_LSE: LSE selected as RTC clock - * @arg RCC_RTCCLKSource_LSI: LSI selected as RTC clock - * @arg RCC_RTCCLKSource_HSE_Div128: HSE clock divided by 128 selected as RTC clock - * @retval None - */ -void RCC_RTCCLKConfig(uint32_t RCC_RTCCLKSource) -{ - /* Check the parameters */ - assert_param(IS_RCC_RTCCLK_SOURCE(RCC_RTCCLKSource)); - /* Select the RTC clock source */ - RCC->BDCR |= RCC_RTCCLKSource; -} - -/** - * @brief Enables or disables the RTC clock. - * @note This function must be used only after the RTC clock was selected using the RCC_RTCCLKConfig function. - * @param NewState: new state of the RTC clock. This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_RTCCLKCmd(FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_FUNCTIONAL_STATE(NewState)); - *(__IO uint32_t *) BDCR_RTCEN_BB = (uint32_t)NewState; -} - -/** - * @brief Returns the frequencies of different on chip clocks. - * @param RCC_Clocks: pointer to a RCC_ClocksTypeDef structure which will hold - * the clocks frequencies. - * @retval None - */ -void RCC_GetClocksFreq(RCC_ClocksTypeDef* RCC_Clocks) -{ - uint32_t tmp = 0, pllmull = 0, pllsource = 0, presc = 0; - -#ifdef STM32F10X_CL - uint32_t prediv1source = 0, prediv1factor = 0, prediv2factor = 0, pll2mull = 0; -#endif /* STM32F10X_CL */ - - /* Get SYSCLK source -------------------------------------------------------*/ - tmp = RCC->CFGR & CFGR_SWS_Mask; - - switch (tmp) - { - case 0x00: /* HSI used as system clock */ - RCC_Clocks->SYSCLK_Frequency = HSI_Value; - break; - case 0x04: /* HSE used as system clock */ - RCC_Clocks->SYSCLK_Frequency = HSE_Value; - break; - case 0x08: /* PLL used as system clock */ - - /* Get PLL clock source and multiplication factor ----------------------*/ - pllmull = RCC->CFGR & CFGR_PLLMull_Mask; - pllsource = RCC->CFGR & CFGR_PLLSRC_Mask; - -#ifndef STM32F10X_CL - pllmull = ( pllmull >> 18) + 2; - - if (pllsource == 0x00) - {/* HSI oscillator clock divided by 2 selected as PLL clock entry */ - RCC_Clocks->SYSCLK_Frequency = (HSI_Value >> 1) * pllmull; - } - else - {/* HSE selected as PLL clock entry */ - if ((RCC->CFGR & CFGR_PLLXTPRE_Mask) != (uint32_t)RESET) - {/* HSE oscillator clock divided by 2 */ - RCC_Clocks->SYSCLK_Frequency = (HSE_Value >> 1) * pllmull; - } - else - { - RCC_Clocks->SYSCLK_Frequency = HSE_Value * pllmull; - } - } -#else - pllmull = pllmull >> 18; - - if (pllmull != 0x0D) - { - pllmull += 2; - } - else - { /* PLL multiplication factor = PLL input clock * 6.5 */ - pllmull = 13 / 2; - } - - if (pllsource == 0x00) - {/* HSI oscillator clock divided by 2 selected as PLL clock entry */ - RCC_Clocks->SYSCLK_Frequency = (HSI_Value >> 1) * pllmull; - } - else - {/* PREDIV1 selected as PLL clock entry */ - - /* Get PREDIV1 clock source and division factor */ - prediv1source = RCC->CFGR2 & CFGR2_PREDIV1SRC; - prediv1factor = (RCC->CFGR2 & CFGR2_PREDIV1) + 1; - - if (prediv1source == 0) - { /* HSE oscillator clock selected as PREDIV1 clock entry */ - RCC_Clocks->SYSCLK_Frequency = (HSE_Value / prediv1factor) * pllmull; - } - else - {/* PLL2 clock selected as PREDIV1 clock entry */ - - /* Get PREDIV2 division factor and PLL2 multiplication factor */ - prediv2factor = ((RCC->CFGR2 & CFGR2_PREDIV2) >> 4) + 1; - pll2mull = ((RCC->CFGR2 & CFGR2_PLL2MUL) >> 8 ) + 2; - RCC_Clocks->SYSCLK_Frequency = (((HSE_Value / prediv2factor) * pll2mull) / prediv1factor) * pllmull; - } - } -#endif /* STM32F10X_CL */ - break; - - default: - RCC_Clocks->SYSCLK_Frequency = HSI_Value; - break; - } - - /* Compute HCLK, PCLK1, PCLK2 and ADCCLK clocks frequencies ----------------*/ - /* Get HCLK prescaler */ - tmp = RCC->CFGR & CFGR_HPRE_Set_Mask; - tmp = tmp >> 4; - presc = APBAHBPrescTable[tmp]; - /* HCLK clock frequency */ - RCC_Clocks->HCLK_Frequency = RCC_Clocks->SYSCLK_Frequency >> presc; - /* Get PCLK1 prescaler */ - tmp = RCC->CFGR & CFGR_PPRE1_Set_Mask; - tmp = tmp >> 8; - presc = APBAHBPrescTable[tmp]; - /* PCLK1 clock frequency */ - RCC_Clocks->PCLK1_Frequency = RCC_Clocks->HCLK_Frequency >> presc; - /* Get PCLK2 prescaler */ - tmp = RCC->CFGR & CFGR_PPRE2_Set_Mask; - tmp = tmp >> 11; - presc = APBAHBPrescTable[tmp]; - /* PCLK2 clock frequency */ - RCC_Clocks->PCLK2_Frequency = RCC_Clocks->HCLK_Frequency >> presc; - /* Get ADCCLK prescaler */ - tmp = RCC->CFGR & CFGR_ADCPRE_Set_Mask; - tmp = tmp >> 14; - presc = ADCPrescTable[tmp]; - /* ADCCLK clock frequency */ - RCC_Clocks->ADCCLK_Frequency = RCC_Clocks->PCLK2_Frequency / presc; -} - -/** - * @brief Enables or disables the AHB peripheral clock. - * @param RCC_AHBPeriph: specifies the AHB peripheral to gates its clock. - * - * For @b STM32_Connectivity_line_devices, this parameter can be any combination - * of the following values: - * @arg RCC_AHBPeriph_DMA1 - * @arg RCC_AHBPeriph_DMA2 - * @arg RCC_AHBPeriph_SRAM - * @arg RCC_AHBPeriph_FLITF - * @arg RCC_AHBPeriph_CRC - * @arg RCC_AHBPeriph_OTG_FS - * @arg RCC_AHBPeriph_ETH_MAC - * @arg RCC_AHBPeriph_ETH_MAC_Tx - * @arg RCC_AHBPeriph_ETH_MAC_Rx - * - * For @b other_STM32_devices, this parameter can be any combination of the - * following values: - * @arg RCC_AHBPeriph_DMA1 - * @arg RCC_AHBPeriph_DMA2 - * @arg RCC_AHBPeriph_SRAM - * @arg RCC_AHBPeriph_FLITF - * @arg RCC_AHBPeriph_CRC - * @arg RCC_AHBPeriph_FSMC - * @arg RCC_AHBPeriph_SDIO - * - * @note SRAM and FLITF clock can be disabled only during sleep mode. - * @param NewState: new state of the specified peripheral clock. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_AHBPeriphClockCmd(uint32_t RCC_AHBPeriph, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_RCC_AHB_PERIPH(RCC_AHBPeriph)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - RCC->AHBENR |= RCC_AHBPeriph; - } - else - { - RCC->AHBENR &= ~RCC_AHBPeriph; - } -} - -/** - * @brief Enables or disables the High Speed APB (APB2) peripheral clock. - * @param RCC_APB2Periph: specifies the APB2 peripheral to gates its clock. - * This parameter can be any combination of the following values: - * @arg RCC_APB2Periph_AFIO, RCC_APB2Periph_GPIOA, RCC_APB2Periph_GPIOB, - * RCC_APB2Periph_GPIOC, RCC_APB2Periph_GPIOD, RCC_APB2Periph_GPIOE, - * RCC_APB2Periph_GPIOF, RCC_APB2Periph_GPIOG, RCC_APB2Periph_ADC1, - * RCC_APB2Periph_ADC2, RCC_APB2Periph_TIM1, RCC_APB2Periph_SPI1, - * RCC_APB2Periph_TIM8, RCC_APB2Periph_USART1, RCC_APB2Periph_ADC3 - * @param NewState: new state of the specified peripheral clock. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_APB2PeriphClockCmd(uint32_t RCC_APB2Periph, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_RCC_APB2_PERIPH(RCC_APB2Periph)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if (NewState != DISABLE) - { - RCC->APB2ENR |= RCC_APB2Periph; - } - else - { - RCC->APB2ENR &= ~RCC_APB2Periph; - } -} - -/** - * @brief Enables or disables the Low Speed APB (APB1) peripheral clock. - * @param RCC_APB1Periph: specifies the APB1 peripheral to gates its clock. - * This parameter can be any combination of the following values: - * @arg RCC_APB1Periph_TIM2, RCC_APB1Periph_TIM3, RCC_APB1Periph_TIM4, - * RCC_APB1Periph_TIM5, RCC_APB1Periph_TIM6, RCC_APB1Periph_TIM7, - * RCC_APB1Periph_WWDG, RCC_APB1Periph_SPI2, RCC_APB1Periph_SPI3, - * RCC_APB1Periph_USART2, RCC_APB1Periph_USART3, RCC_APB1Periph_USART4, - * RCC_APB1Periph_USART5, RCC_APB1Periph_I2C1, RCC_APB1Periph_I2C2, - * RCC_APB1Periph_USB, RCC_APB1Periph_CAN1, RCC_APB1Periph_BKP, - * RCC_APB1Periph_PWR, RCC_APB1Periph_DAC - * @param NewState: new state of the specified peripheral clock. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_APB1PeriphClockCmd(uint32_t RCC_APB1Periph, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_RCC_APB1_PERIPH(RCC_APB1Periph)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if (NewState != DISABLE) - { - RCC->APB1ENR |= RCC_APB1Periph; - } - else - { - RCC->APB1ENR &= ~RCC_APB1Periph; - } -} - -#ifdef STM32F10X_CL -/** - * @brief Forces or releases AHB peripheral reset. - * @note This function applies only to STM32 Connectivity line devices. - * @param RCC_AHBPeriph: specifies the AHB peripheral to reset. - * This parameter can be any combination of the following values: - * @arg RCC_AHBPeriph_OTG_FS - * @arg RCC_AHBPeriph_ETH_MAC - * @param NewState: new state of the specified peripheral reset. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_AHBPeriphResetCmd(uint32_t RCC_AHBPeriph, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_RCC_AHB_PERIPH_RESET(RCC_AHBPeriph)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - RCC->AHBRSTR |= RCC_AHBPeriph; - } - else - { - RCC->AHBRSTR &= ~RCC_AHBPeriph; - } -} -#endif /* STM32F10X_CL */ - -/** - * @brief Forces or releases High Speed APB (APB2) peripheral reset. - * @param RCC_APB2Periph: specifies the APB2 peripheral to reset. - * This parameter can be any combination of the following values: - * @arg RCC_APB2Periph_AFIO, RCC_APB2Periph_GPIOA, RCC_APB2Periph_GPIOB, - * RCC_APB2Periph_GPIOC, RCC_APB2Periph_GPIOD, RCC_APB2Periph_GPIOE, - * RCC_APB2Periph_GPIOF, RCC_APB2Periph_GPIOG, RCC_APB2Periph_ADC1, - * RCC_APB2Periph_ADC2, RCC_APB2Periph_TIM1, RCC_APB2Periph_SPI1, - * RCC_APB2Periph_TIM8, RCC_APB2Periph_USART1, RCC_APB2Periph_ADC3 - * @param NewState: new state of the specified peripheral reset. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_APB2PeriphResetCmd(uint32_t RCC_APB2Periph, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_RCC_APB2_PERIPH(RCC_APB2Periph)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if (NewState != DISABLE) - { - RCC->APB2RSTR |= RCC_APB2Periph; - } - else - { - RCC->APB2RSTR &= ~RCC_APB2Periph; - } -} - -/** - * @brief Forces or releases Low Speed APB (APB1) peripheral reset. - * @param RCC_APB1Periph: specifies the APB1 peripheral to reset. - * This parameter can be any combination of the following values: - * @arg RCC_APB1Periph_TIM2, RCC_APB1Periph_TIM3, RCC_APB1Periph_TIM4, - * RCC_APB1Periph_TIM5, RCC_APB1Periph_TIM6, RCC_APB1Periph_TIM7, - * RCC_APB1Periph_WWDG, RCC_APB1Periph_SPI2, RCC_APB1Periph_SPI3, - * RCC_APB1Periph_USART2, RCC_APB1Periph_USART3, RCC_APB1Periph_USART4, - * RCC_APB1Periph_USART5, RCC_APB1Periph_I2C1, RCC_APB1Periph_I2C2, - * RCC_APB1Periph_USB, RCC_APB1Periph_CAN1, RCC_APB1Periph_BKP, - * RCC_APB1Periph_PWR, RCC_APB1Periph_DAC - * @param NewState: new state of the specified peripheral clock. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_APB1PeriphResetCmd(uint32_t RCC_APB1Periph, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_RCC_APB1_PERIPH(RCC_APB1Periph)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - if (NewState != DISABLE) - { - RCC->APB1RSTR |= RCC_APB1Periph; - } - else - { - RCC->APB1RSTR &= ~RCC_APB1Periph; - } -} - -/** - * @brief Forces or releases the Backup domain reset. - * @param NewState: new state of the Backup domain reset. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_BackupResetCmd(FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_FUNCTIONAL_STATE(NewState)); - *(__IO uint32_t *) BDCR_BDRST_BB = (uint32_t)NewState; -} - -/** - * @brief Enables or disables the Clock Security System. - * @param NewState: new state of the Clock Security System.. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void RCC_ClockSecuritySystemCmd(FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_FUNCTIONAL_STATE(NewState)); - *(__IO uint32_t *) CR_CSSON_BB = (uint32_t)NewState; -} - -/** - * @brief Selects the clock source to output on MCO pin. - * @param RCC_MCO: specifies the clock source to output. - * - * For @b STM32_Connectivity_line_devices, this parameter can be one of the - * following values: - * @arg RCC_MCO_NoClock: No clock selected - * @arg RCC_MCO_SYSCLK: System clock selected - * @arg RCC_MCO_HSI: HSI oscillator clock selected - * @arg RCC_MCO_HSE: HSE oscillator clock selected - * @arg RCC_MCO_PLLCLK_Div2: PLL clock divided by 2 selected - * @arg RCC_MCO_PLL2CLK: PLL2 clock selected - * @arg RCC_MCO_PLL3CLK_Div2: PLL3 clock divided by 2 selected - * @arg RCC_MCO_XT1: External 3-25 MHz oscillator clock selected - * @arg RCC_MCO_PLL3CLK: PLL3 clock selected - * - * For @b other_STM32_devices, this parameter can be one of the following values: - * @arg RCC_MCO_NoClock: No clock selected - * @arg RCC_MCO_SYSCLK: System clock selected - * @arg RCC_MCO_HSI: HSI oscillator clock selected - * @arg RCC_MCO_HSE: HSE oscillator clock selected - * @arg RCC_MCO_PLLCLK_Div2: PLL clock divided by 2 selected - * - * @retval None - */ -void RCC_MCOConfig(uint8_t RCC_MCO) -{ - /* Check the parameters */ - assert_param(IS_RCC_MCO(RCC_MCO)); - - /* Perform Byte access to MCO bits to select the MCO source */ - *(__IO uint8_t *) CFGR_BYTE4_ADDRESS = RCC_MCO; -} - -/** - * @brief Checks whether the specified RCC flag is set or not. - * @param RCC_FLAG: specifies the flag to check. - * - * For @b STM32_Connectivity_line_devices, this parameter can be one of the - * following values: - * @arg RCC_FLAG_HSIRDY: HSI oscillator clock ready - * @arg RCC_FLAG_HSERDY: HSE oscillator clock ready - * @arg RCC_FLAG_PLLRDY: PLL clock ready - * @arg RCC_FLAG_PLL2RDY: PLL2 clock ready - * @arg RCC_FLAG_PLL3RDY: PLL3 clock ready - * @arg RCC_FLAG_LSERDY: LSE oscillator clock ready - * @arg RCC_FLAG_LSIRDY: LSI oscillator clock ready - * @arg RCC_FLAG_PINRST: Pin reset - * @arg RCC_FLAG_PORRST: POR/PDR reset - * @arg RCC_FLAG_SFTRST: Software reset - * @arg RCC_FLAG_IWDGRST: Independent Watchdog reset - * @arg RCC_FLAG_WWDGRST: Window Watchdog reset - * @arg RCC_FLAG_LPWRRST: Low Power reset - * - * For @b other_STM32_devices, this parameter can be one of the following values: - * @arg RCC_FLAG_HSIRDY: HSI oscillator clock ready - * @arg RCC_FLAG_HSERDY: HSE oscillator clock ready - * @arg RCC_FLAG_PLLRDY: PLL clock ready - * @arg RCC_FLAG_LSERDY: LSE oscillator clock ready - * @arg RCC_FLAG_LSIRDY: LSI oscillator clock ready - * @arg RCC_FLAG_PINRST: Pin reset - * @arg RCC_FLAG_PORRST: POR/PDR reset - * @arg RCC_FLAG_SFTRST: Software reset - * @arg RCC_FLAG_IWDGRST: Independent Watchdog reset - * @arg RCC_FLAG_WWDGRST: Window Watchdog reset - * @arg RCC_FLAG_LPWRRST: Low Power reset - * - * @retval The new state of RCC_FLAG (SET or RESET). - */ -FlagStatus RCC_GetFlagStatus(uint8_t RCC_FLAG) -{ - uint32_t tmp = 0; - uint32_t statusreg = 0; - FlagStatus bitstatus = RESET; - /* Check the parameters */ - assert_param(IS_RCC_FLAG(RCC_FLAG)); - - /* Get the RCC register index */ - tmp = RCC_FLAG >> 5; - if (tmp == 1) /* The flag to check is in CR register */ - { - statusreg = RCC->CR; - } - else if (tmp == 2) /* The flag to check is in BDCR register */ - { - statusreg = RCC->BDCR; - } - else /* The flag to check is in CSR register */ - { - statusreg = RCC->CSR; - } - - /* Get the flag position */ - tmp = RCC_FLAG & FLAG_Mask; - if ((statusreg & ((uint32_t)1 << tmp)) != (uint32_t)RESET) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - - /* Return the flag status */ - return bitstatus; -} - -/** - * @brief Clears the RCC reset flags. - * @note The reset flags are: RCC_FLAG_PINRST, RCC_FLAG_PORRST, RCC_FLAG_SFTRST, - * RCC_FLAG_IWDGRST, RCC_FLAG_WWDGRST, RCC_FLAG_LPWRRST - * @param None - * @retval None - */ -void RCC_ClearFlag(void) -{ - /* Set RMVF bit to clear the reset flags */ - RCC->CSR |= CSR_RMVF_Set; -} - -/** - * @brief Checks whether the specified RCC interrupt has occurred or not. - * @param RCC_IT: specifies the RCC interrupt source to check. - * - * For @b STM32_Connectivity_line_devices, this parameter can be one of the - * following values: - * @arg RCC_IT_LSIRDY: LSI ready interrupt - * @arg RCC_IT_LSERDY: LSE ready interrupt - * @arg RCC_IT_HSIRDY: HSI ready interrupt - * @arg RCC_IT_HSERDY: HSE ready interrupt - * @arg RCC_IT_PLLRDY: PLL ready interrupt - * @arg RCC_IT_PLL2RDY: PLL2 ready interrupt - * @arg RCC_IT_PLL3RDY: PLL3 ready interrupt - * @arg RCC_IT_CSS: Clock Security System interrupt - * - * For @b other_STM32_devices, this parameter can be one of the following values: - * @arg RCC_IT_LSIRDY: LSI ready interrupt - * @arg RCC_IT_LSERDY: LSE ready interrupt - * @arg RCC_IT_HSIRDY: HSI ready interrupt - * @arg RCC_IT_HSERDY: HSE ready interrupt - * @arg RCC_IT_PLLRDY: PLL ready interrupt - * @arg RCC_IT_CSS: Clock Security System interrupt - * - * @retval The new state of RCC_IT (SET or RESET). - */ -ITStatus RCC_GetITStatus(uint8_t RCC_IT) -{ - ITStatus bitstatus = RESET; - /* Check the parameters */ - assert_param(IS_RCC_GET_IT(RCC_IT)); - - /* Check the status of the specified RCC interrupt */ - if ((RCC->CIR & RCC_IT) != (uint32_t)RESET) - { - bitstatus = SET; - } - else - { - bitstatus = RESET; - } - - /* Return the RCC_IT status */ - return bitstatus; -} - -/** - * @brief Clears the RCC’s interrupt pending bits. - * @param RCC_IT: specifies the interrupt pending bit to clear. - * - * For @b STM32_Connectivity_line_devices, this parameter can be any combination - * of the following values: - * @arg RCC_IT_LSIRDY: LSI ready interrupt - * @arg RCC_IT_LSERDY: LSE ready interrupt - * @arg RCC_IT_HSIRDY: HSI ready interrupt - * @arg RCC_IT_HSERDY: HSE ready interrupt - * @arg RCC_IT_PLLRDY: PLL ready interrupt - * @arg RCC_IT_PLL2RDY: PLL2 ready interrupt - * @arg RCC_IT_PLL3RDY: PLL3 ready interrupt - * @arg RCC_IT_CSS: Clock Security System interrupt - * - * For @b other_STM32_devices, this parameter can be any combination of the - * following values: - * @arg RCC_IT_LSIRDY: LSI ready interrupt - * @arg RCC_IT_LSERDY: LSE ready interrupt - * @arg RCC_IT_HSIRDY: HSI ready interrupt - * @arg RCC_IT_HSERDY: HSE ready interrupt - * @arg RCC_IT_PLLRDY: PLL ready interrupt - * - * @arg RCC_IT_CSS: Clock Security System interrupt - * @retval None - */ -void RCC_ClearITPendingBit(uint8_t RCC_IT) -{ - /* Check the parameters */ - assert_param(IS_RCC_CLEAR_IT(RCC_IT)); - - /* Perform Byte access to RCC_CIR[23:16] bits to clear the selected interrupt - pending bits */ - *(__IO uint8_t *) CIR_BYTE3_ADDRESS = RCC_IT; -} - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/******************* (C) COPYRIGHT 2009 STMicroelectronics *****END OF FILE****/ -- cgit v1.2.3