mbed library sources
Dependents: frdm_kl05z_gpio_test
Fork of mbed-src by
targets/cmsis/TARGET_STM/TARGET_NUCLEO_F411RE/stm32f4xx_hal_rcc.c@323:9e901b0a5aa1, 2014-09-13 (annotated)
- Committer:
- shaoziyang
- Date:
- Sat Sep 13 14:25:46 2014 +0000
- Revision:
- 323:9e901b0a5aa1
- Parent:
- 235:685d5f11838f
test with CLOCK_SETUP = 0
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 235:685d5f11838f | 1 | /** |
mbed_official | 235:685d5f11838f | 2 | ****************************************************************************** |
mbed_official | 235:685d5f11838f | 3 | * @file stm32f4xx_hal_rcc.c |
mbed_official | 235:685d5f11838f | 4 | * @author MCD Application Team |
mbed_official | 235:685d5f11838f | 5 | * @version V1.1.0 |
mbed_official | 235:685d5f11838f | 6 | * @date 19-June-2014 |
mbed_official | 235:685d5f11838f | 7 | * @brief RCC HAL module driver. |
mbed_official | 235:685d5f11838f | 8 | * This file provides firmware functions to manage the following |
mbed_official | 235:685d5f11838f | 9 | * functionalities of the Reset and Clock Control (RCC) peripheral: |
mbed_official | 235:685d5f11838f | 10 | * + Initialization and de-initialization functions |
mbed_official | 235:685d5f11838f | 11 | * + Peripheral Control functions |
mbed_official | 235:685d5f11838f | 12 | * |
mbed_official | 235:685d5f11838f | 13 | @verbatim |
mbed_official | 235:685d5f11838f | 14 | ============================================================================== |
mbed_official | 235:685d5f11838f | 15 | ##### RCC specific features ##### |
mbed_official | 235:685d5f11838f | 16 | ============================================================================== |
mbed_official | 235:685d5f11838f | 17 | [..] |
mbed_official | 235:685d5f11838f | 18 | After reset the device is running from Internal High Speed oscillator |
mbed_official | 235:685d5f11838f | 19 | (HSI 16MHz) with Flash 0 wait state, Flash prefetch buffer, D-Cache |
mbed_official | 235:685d5f11838f | 20 | and I-Cache are disabled, and all peripherals are off except internal |
mbed_official | 235:685d5f11838f | 21 | SRAM, Flash and JTAG. |
mbed_official | 235:685d5f11838f | 22 | (+) There is no prescaler on High speed (AHB) and Low speed (APB) busses; |
mbed_official | 235:685d5f11838f | 23 | all peripherals mapped on these busses are running at HSI speed. |
mbed_official | 235:685d5f11838f | 24 | (+) The clock for all peripherals is switched off, except the SRAM and FLASH. |
mbed_official | 235:685d5f11838f | 25 | (+) All GPIOs are in input floating state, except the JTAG pins which |
mbed_official | 235:685d5f11838f | 26 | are assigned to be used for debug purpose. |
mbed_official | 235:685d5f11838f | 27 | |
mbed_official | 235:685d5f11838f | 28 | [..] |
mbed_official | 235:685d5f11838f | 29 | Once the device started from reset, the user application has to: |
mbed_official | 235:685d5f11838f | 30 | (+) Configure the clock source to be used to drive the System clock |
mbed_official | 235:685d5f11838f | 31 | (if the application needs higher frequency/performance) |
mbed_official | 235:685d5f11838f | 32 | (+) Configure the System clock frequency and Flash settings |
mbed_official | 235:685d5f11838f | 33 | (+) Configure the AHB and APB busses prescalers |
mbed_official | 235:685d5f11838f | 34 | (+) Enable the clock for the peripheral(s) to be used |
mbed_official | 235:685d5f11838f | 35 | (+) Configure the clock source(s) for peripherals which clocks are not |
mbed_official | 235:685d5f11838f | 36 | derived from the System clock (I2S, RTC, ADC, USB OTG FS/SDIO/RNG) |
mbed_official | 235:685d5f11838f | 37 | |
mbed_official | 235:685d5f11838f | 38 | @endverbatim |
mbed_official | 235:685d5f11838f | 39 | ****************************************************************************** |
mbed_official | 235:685d5f11838f | 40 | * @attention |
mbed_official | 235:685d5f11838f | 41 | * |
mbed_official | 235:685d5f11838f | 42 | * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2> |
mbed_official | 235:685d5f11838f | 43 | * |
mbed_official | 235:685d5f11838f | 44 | * Redistribution and use in source and binary forms, with or without modification, |
mbed_official | 235:685d5f11838f | 45 | * are permitted provided that the following conditions are met: |
mbed_official | 235:685d5f11838f | 46 | * 1. Redistributions of source code must retain the above copyright notice, |
mbed_official | 235:685d5f11838f | 47 | * this list of conditions and the following disclaimer. |
mbed_official | 235:685d5f11838f | 48 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
mbed_official | 235:685d5f11838f | 49 | * this list of conditions and the following disclaimer in the documentation |
mbed_official | 235:685d5f11838f | 50 | * and/or other materials provided with the distribution. |
mbed_official | 235:685d5f11838f | 51 | * 3. Neither the name of STMicroelectronics nor the names of its contributors |
mbed_official | 235:685d5f11838f | 52 | * may be used to endorse or promote products derived from this software |
mbed_official | 235:685d5f11838f | 53 | * without specific prior written permission. |
mbed_official | 235:685d5f11838f | 54 | * |
mbed_official | 235:685d5f11838f | 55 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
mbed_official | 235:685d5f11838f | 56 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
mbed_official | 235:685d5f11838f | 57 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
mbed_official | 235:685d5f11838f | 58 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
mbed_official | 235:685d5f11838f | 59 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
mbed_official | 235:685d5f11838f | 60 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
mbed_official | 235:685d5f11838f | 61 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
mbed_official | 235:685d5f11838f | 62 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
mbed_official | 235:685d5f11838f | 63 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
mbed_official | 235:685d5f11838f | 64 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
mbed_official | 235:685d5f11838f | 65 | * |
mbed_official | 235:685d5f11838f | 66 | ****************************************************************************** |
mbed_official | 235:685d5f11838f | 67 | */ |
mbed_official | 235:685d5f11838f | 68 | |
mbed_official | 235:685d5f11838f | 69 | /* Includes ------------------------------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 70 | #include "stm32f4xx_hal.h" |
mbed_official | 235:685d5f11838f | 71 | |
mbed_official | 235:685d5f11838f | 72 | /** @addtogroup STM32F4xx_HAL_Driver |
mbed_official | 235:685d5f11838f | 73 | * @{ |
mbed_official | 235:685d5f11838f | 74 | */ |
mbed_official | 235:685d5f11838f | 75 | |
mbed_official | 235:685d5f11838f | 76 | /** @defgroup RCC |
mbed_official | 235:685d5f11838f | 77 | * @brief RCC HAL module driver |
mbed_official | 235:685d5f11838f | 78 | * @{ |
mbed_official | 235:685d5f11838f | 79 | */ |
mbed_official | 235:685d5f11838f | 80 | |
mbed_official | 235:685d5f11838f | 81 | #ifdef HAL_RCC_MODULE_ENABLED |
mbed_official | 235:685d5f11838f | 82 | |
mbed_official | 235:685d5f11838f | 83 | /* Private typedef -----------------------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 84 | /* Private define ------------------------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 85 | #define HSE_TIMEOUT_VALUE HSE_STARTUP_TIMEOUT |
mbed_official | 235:685d5f11838f | 86 | #define HSI_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */ |
mbed_official | 235:685d5f11838f | 87 | #define LSI_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */ |
mbed_official | 235:685d5f11838f | 88 | #define PLL_TIMEOUT_VALUE ((uint32_t)100) /* 100 ms */ |
mbed_official | 235:685d5f11838f | 89 | #define CLOCKSWITCH_TIMEOUT_VALUE ((uint32_t)5000) /* 5 s */ |
mbed_official | 235:685d5f11838f | 90 | |
mbed_official | 235:685d5f11838f | 91 | /* Private macro -------------------------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 92 | #define __MCO1_CLK_ENABLE() __GPIOA_CLK_ENABLE() |
mbed_official | 235:685d5f11838f | 93 | #define MCO1_GPIO_PORT GPIOA |
mbed_official | 235:685d5f11838f | 94 | #define MCO1_PIN GPIO_PIN_8 |
mbed_official | 235:685d5f11838f | 95 | |
mbed_official | 235:685d5f11838f | 96 | #define __MCO2_CLK_ENABLE() __GPIOC_CLK_ENABLE() |
mbed_official | 235:685d5f11838f | 97 | #define MCO2_GPIO_PORT GPIOC |
mbed_official | 235:685d5f11838f | 98 | #define MCO2_PIN GPIO_PIN_9 |
mbed_official | 235:685d5f11838f | 99 | |
mbed_official | 235:685d5f11838f | 100 | /* Private variables ---------------------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 101 | const uint8_t APBAHBPrescTable[16] = {0, 0, 0, 0, 1, 2, 3, 4, 1, 2, 3, 4, 6, 7, 8, 9}; |
mbed_official | 235:685d5f11838f | 102 | |
mbed_official | 235:685d5f11838f | 103 | /* Private function prototypes -----------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 104 | /* Private functions ---------------------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 105 | |
mbed_official | 235:685d5f11838f | 106 | /** @defgroup RCC_Private_Functions |
mbed_official | 235:685d5f11838f | 107 | * @{ |
mbed_official | 235:685d5f11838f | 108 | */ |
mbed_official | 235:685d5f11838f | 109 | |
mbed_official | 235:685d5f11838f | 110 | /** @defgroup RCC_Group1 Initialization and de-initialization functions |
mbed_official | 235:685d5f11838f | 111 | * @brief Initialization and Configuration functions |
mbed_official | 235:685d5f11838f | 112 | * |
mbed_official | 235:685d5f11838f | 113 | @verbatim |
mbed_official | 235:685d5f11838f | 114 | =============================================================================== |
mbed_official | 235:685d5f11838f | 115 | ##### Initialization and de-initialization functions ##### |
mbed_official | 235:685d5f11838f | 116 | =============================================================================== |
mbed_official | 235:685d5f11838f | 117 | [..] |
mbed_official | 235:685d5f11838f | 118 | This section provides functions allowing to configure the internal/external oscillators |
mbed_official | 235:685d5f11838f | 119 | (HSE, HSI, LSE, LSI, PLL, CSS and MCO) and the System busses clocks (SYSCLK, AHB, APB1 |
mbed_official | 235:685d5f11838f | 120 | and APB2). |
mbed_official | 235:685d5f11838f | 121 | |
mbed_official | 235:685d5f11838f | 122 | [..] Internal/external clock and PLL configuration |
mbed_official | 235:685d5f11838f | 123 | (#) HSI (high-speed internal), 16 MHz factory-trimmed RC used directly or through |
mbed_official | 235:685d5f11838f | 124 | the PLL as System clock source. |
mbed_official | 235:685d5f11838f | 125 | |
mbed_official | 235:685d5f11838f | 126 | (#) LSI (low-speed internal), 32 KHz low consumption RC used as IWDG and/or RTC |
mbed_official | 235:685d5f11838f | 127 | clock source. |
mbed_official | 235:685d5f11838f | 128 | |
mbed_official | 235:685d5f11838f | 129 | (#) HSE (high-speed external), 4 to 26 MHz crystal oscillator used directly or |
mbed_official | 235:685d5f11838f | 130 | through the PLL as System clock source. Can be used also as RTC clock source. |
mbed_official | 235:685d5f11838f | 131 | |
mbed_official | 235:685d5f11838f | 132 | (#) LSE (low-speed external), 32 KHz oscillator used as RTC clock source. |
mbed_official | 235:685d5f11838f | 133 | |
mbed_official | 235:685d5f11838f | 134 | (#) PLL (clocked by HSI or HSE), featuring two different output clocks: |
mbed_official | 235:685d5f11838f | 135 | (++) The first output is used to generate the high speed system clock (up to 168 MHz) |
mbed_official | 235:685d5f11838f | 136 | (++) The second output is used to generate the clock for the USB OTG FS (48 MHz), |
mbed_official | 235:685d5f11838f | 137 | the random analog generator (<=48 MHz) and the SDIO (<= 48 MHz). |
mbed_official | 235:685d5f11838f | 138 | |
mbed_official | 235:685d5f11838f | 139 | (#) CSS (Clock security system), once enable using the macro __HAL_RCC_CSS_ENABLE() |
mbed_official | 235:685d5f11838f | 140 | and if a HSE clock failure occurs(HSE used directly or through PLL as System |
mbed_official | 235:685d5f11838f | 141 | clock source), the System clockis automatically switched to HSI and an interrupt |
mbed_official | 235:685d5f11838f | 142 | is generated if enabled. The interrupt is linked to the Cortex-M4 NMI |
mbed_official | 235:685d5f11838f | 143 | (Non-Maskable Interrupt) exception vector. |
mbed_official | 235:685d5f11838f | 144 | |
mbed_official | 235:685d5f11838f | 145 | (#) MCO1 (microcontroller clock output), used to output HSI, LSE, HSE or PLL |
mbed_official | 235:685d5f11838f | 146 | clock (through a configurable prescaler) on PA8 pin. |
mbed_official | 235:685d5f11838f | 147 | |
mbed_official | 235:685d5f11838f | 148 | (#) MCO2 (microcontroller clock output), used to output HSE, PLL, SYSCLK or PLLI2S |
mbed_official | 235:685d5f11838f | 149 | clock (through a configurable prescaler) on PC9 pin. |
mbed_official | 235:685d5f11838f | 150 | |
mbed_official | 235:685d5f11838f | 151 | [..] System, AHB and APB busses clocks configuration |
mbed_official | 235:685d5f11838f | 152 | (#) Several clock sources can be used to drive the System clock (SYSCLK): HSI, |
mbed_official | 235:685d5f11838f | 153 | HSE and PLL. |
mbed_official | 235:685d5f11838f | 154 | The AHB clock (HCLK) is derived from System clock through configurable |
mbed_official | 235:685d5f11838f | 155 | prescaler and used to clock the CPU, memory and peripherals mapped |
mbed_official | 235:685d5f11838f | 156 | on AHB bus (DMA, GPIO...). APB1 (PCLK1) and APB2 (PCLK2) clocks are derived |
mbed_official | 235:685d5f11838f | 157 | from AHB clock through configurable prescalers and used to clock |
mbed_official | 235:685d5f11838f | 158 | the peripherals mapped on these busses. You can use |
mbed_official | 235:685d5f11838f | 159 | "HAL_RCC_GetSysClockFreq()" function to retrieve the frequencies of these clocks. |
mbed_official | 235:685d5f11838f | 160 | |
mbed_official | 235:685d5f11838f | 161 | -@- All the peripheral clocks are derived from the System clock (SYSCLK) except: |
mbed_official | 235:685d5f11838f | 162 | (+@) I2S: the I2S clock can be derived either from a specific PLL (PLLI2S) or |
mbed_official | 235:685d5f11838f | 163 | from an external clock mapped on the I2S_CKIN pin. |
mbed_official | 235:685d5f11838f | 164 | You have to use __HAL_RCC_PLLI2S_CONFIG() macro to configure this clock. |
mbed_official | 235:685d5f11838f | 165 | (+@) SAI: the SAI clock can be derived either from a specific PLL (PLLI2S) or (PLLSAI) or |
mbed_official | 235:685d5f11838f | 166 | from an external clock mapped on the I2S_CKIN pin. |
mbed_official | 235:685d5f11838f | 167 | You have to use __HAL_RCC_PLLI2S_CONFIG() macro to configure this clock. |
mbed_official | 235:685d5f11838f | 168 | (+@) RTC: the RTC clock can be derived either from the LSI, LSE or HSE clock |
mbed_official | 235:685d5f11838f | 169 | divided by 2 to 31. You have to use __HAL_RCC_RTC_CONFIG() and __HAL_RCC_RTC_ENABLE() |
mbed_official | 235:685d5f11838f | 170 | macros to configure this clock. |
mbed_official | 235:685d5f11838f | 171 | (+@) USB OTG FS, SDIO and RTC: USB OTG FS require a frequency equal to 48 MHz |
mbed_official | 235:685d5f11838f | 172 | to work correctly, while the SDIO require a frequency equal or lower than |
mbed_official | 235:685d5f11838f | 173 | to 48. This clock is derived of the main PLL through PLLQ divider. |
mbed_official | 235:685d5f11838f | 174 | (+@) IWDG clock which is always the LSI clock. |
mbed_official | 235:685d5f11838f | 175 | |
mbed_official | 235:685d5f11838f | 176 | (#) For the STM32F405xx/07xx and STM32F415xx/17xx devices, the maximum |
mbed_official | 235:685d5f11838f | 177 | frequency of the SYSCLK and HCLK is 168 MHz, PCLK2 84 MHz and PCLK1 42 MHz. |
mbed_official | 235:685d5f11838f | 178 | Depending on the device voltage range, the maximum frequency should |
mbed_official | 235:685d5f11838f | 179 | be adapted accordingly (refer to the product datasheets for more details). |
mbed_official | 235:685d5f11838f | 180 | |
mbed_official | 235:685d5f11838f | 181 | (#) For the STM32F42xxx and STM32F43xxx devices, the maximum frequency |
mbed_official | 235:685d5f11838f | 182 | of the SYSCLK and HCLK is 180 MHz, PCLK2 90 MHz and PCLK1 45 MHz. |
mbed_official | 235:685d5f11838f | 183 | Depending on the device voltage range, the maximum frequency should |
mbed_official | 235:685d5f11838f | 184 | be adapted accordingly (refer to the product datasheets for more details). |
mbed_official | 235:685d5f11838f | 185 | |
mbed_official | 235:685d5f11838f | 186 | (#) For the STM32F401xx, the maximum frequency of the SYSCLK and HCLK is 84 MHz, |
mbed_official | 235:685d5f11838f | 187 | PCLK2 84 MHz and PCLK1 42 MHz. |
mbed_official | 235:685d5f11838f | 188 | Depending on the device voltage range, the maximum frequency should |
mbed_official | 235:685d5f11838f | 189 | be adapted accordingly (refer to the product datasheets for more details). |
mbed_official | 235:685d5f11838f | 190 | @endverbatim |
mbed_official | 235:685d5f11838f | 191 | * @{ |
mbed_official | 235:685d5f11838f | 192 | */ |
mbed_official | 235:685d5f11838f | 193 | |
mbed_official | 235:685d5f11838f | 194 | /** |
mbed_official | 235:685d5f11838f | 195 | * @brief Resets the RCC clock configuration to the default reset state. |
mbed_official | 235:685d5f11838f | 196 | * @note The default reset state of the clock configuration is given below: |
mbed_official | 235:685d5f11838f | 197 | * - HSI ON and used as system clock source |
mbed_official | 235:685d5f11838f | 198 | * - HSE, PLL and PLLI2S OFF |
mbed_official | 235:685d5f11838f | 199 | * - AHB, APB1 and APB2 prescaler set to 1. |
mbed_official | 235:685d5f11838f | 200 | * - CSS, MCO1 and MCO2 OFF |
mbed_official | 235:685d5f11838f | 201 | * - All interrupts disabled |
mbed_official | 235:685d5f11838f | 202 | * @note This function doesn't modify the configuration of the |
mbed_official | 235:685d5f11838f | 203 | * - Peripheral clocks |
mbed_official | 235:685d5f11838f | 204 | * - LSI, LSE and RTC clocks |
mbed_official | 235:685d5f11838f | 205 | * @param None |
mbed_official | 235:685d5f11838f | 206 | * @retval None |
mbed_official | 235:685d5f11838f | 207 | */ |
mbed_official | 235:685d5f11838f | 208 | void HAL_RCC_DeInit(void) |
mbed_official | 235:685d5f11838f | 209 | { |
mbed_official | 235:685d5f11838f | 210 | /* Set HSION bit */ |
mbed_official | 235:685d5f11838f | 211 | SET_BIT(RCC->CR, RCC_CR_HSION | RCC_CR_HSITRIM_4); |
mbed_official | 235:685d5f11838f | 212 | |
mbed_official | 235:685d5f11838f | 213 | /* Reset CFGR register */ |
mbed_official | 235:685d5f11838f | 214 | CLEAR_REG(RCC->CFGR); |
mbed_official | 235:685d5f11838f | 215 | |
mbed_official | 235:685d5f11838f | 216 | /* Reset HSEON, CSSON, PLLON, PLLI2S */ |
mbed_official | 235:685d5f11838f | 217 | CLEAR_BIT(RCC->CR, RCC_CR_HSEON | RCC_CR_CSSON | RCC_CR_PLLON| RCC_CR_PLLI2SON); |
mbed_official | 235:685d5f11838f | 218 | |
mbed_official | 235:685d5f11838f | 219 | /* Reset PLLCFGR register */ |
mbed_official | 235:685d5f11838f | 220 | CLEAR_REG(RCC->PLLCFGR); |
mbed_official | 235:685d5f11838f | 221 | SET_BIT(RCC->PLLCFGR, RCC_PLLCFGR_PLLM_4 | RCC_PLLCFGR_PLLN_6 | RCC_PLLCFGR_PLLN_7 | RCC_PLLCFGR_PLLQ_2); |
mbed_official | 235:685d5f11838f | 222 | |
mbed_official | 235:685d5f11838f | 223 | /* Reset PLLI2SCFGR register */ |
mbed_official | 235:685d5f11838f | 224 | CLEAR_REG(RCC->PLLI2SCFGR); |
mbed_official | 235:685d5f11838f | 225 | SET_BIT(RCC->PLLI2SCFGR, RCC_PLLI2SCFGR_PLLI2SN_6 | RCC_PLLI2SCFGR_PLLI2SN_7 | RCC_PLLI2SCFGR_PLLI2SR_1); |
mbed_official | 235:685d5f11838f | 226 | |
mbed_official | 235:685d5f11838f | 227 | /* Reset HSEBYP bit */ |
mbed_official | 235:685d5f11838f | 228 | CLEAR_BIT(RCC->CR, RCC_CR_HSEBYP); |
mbed_official | 235:685d5f11838f | 229 | |
mbed_official | 235:685d5f11838f | 230 | /* Disable all interrupts */ |
mbed_official | 235:685d5f11838f | 231 | CLEAR_REG(RCC->CIR); |
mbed_official | 235:685d5f11838f | 232 | } |
mbed_official | 235:685d5f11838f | 233 | |
mbed_official | 235:685d5f11838f | 234 | /** |
mbed_official | 235:685d5f11838f | 235 | * @brief Initializes the RCC Oscillators according to the specified parameters in the |
mbed_official | 235:685d5f11838f | 236 | * RCC_OscInitTypeDef. |
mbed_official | 235:685d5f11838f | 237 | * @param RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef structure that |
mbed_official | 235:685d5f11838f | 238 | * contains the configuration information for the RCC Oscillators. |
mbed_official | 235:685d5f11838f | 239 | * @note The PLL is not disabled when used as system clock. |
mbed_official | 235:685d5f11838f | 240 | * @retval HAL status |
mbed_official | 235:685d5f11838f | 241 | */ |
mbed_official | 235:685d5f11838f | 242 | HAL_StatusTypeDef HAL_RCC_OscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) |
mbed_official | 235:685d5f11838f | 243 | { |
mbed_official | 235:685d5f11838f | 244 | uint32_t tickstart = 0; |
mbed_official | 235:685d5f11838f | 245 | |
mbed_official | 235:685d5f11838f | 246 | /* Check the parameters */ |
mbed_official | 235:685d5f11838f | 247 | assert_param(IS_RCC_OSCILLATORTYPE(RCC_OscInitStruct->OscillatorType)); |
mbed_official | 235:685d5f11838f | 248 | /*------------------------------- HSE Configuration ------------------------*/ |
mbed_official | 235:685d5f11838f | 249 | if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSE) == RCC_OSCILLATORTYPE_HSE) |
mbed_official | 235:685d5f11838f | 250 | { |
mbed_official | 235:685d5f11838f | 251 | /* Check the parameters */ |
mbed_official | 235:685d5f11838f | 252 | assert_param(IS_RCC_HSE(RCC_OscInitStruct->HSEState)); |
mbed_official | 235:685d5f11838f | 253 | /* When the HSE is used as system clock or clock source for PLL in these cases HSE will not disabled */ |
mbed_official | 235:685d5f11838f | 254 | if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_HSE) || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLL) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSE))) |
mbed_official | 235:685d5f11838f | 255 | { |
mbed_official | 235:685d5f11838f | 256 | if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) && (RCC_OscInitStruct->HSEState != RCC_HSE_ON)) |
mbed_official | 235:685d5f11838f | 257 | { |
mbed_official | 235:685d5f11838f | 258 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 259 | } |
mbed_official | 235:685d5f11838f | 260 | } |
mbed_official | 235:685d5f11838f | 261 | else |
mbed_official | 235:685d5f11838f | 262 | { |
mbed_official | 235:685d5f11838f | 263 | /* Reset HSEON and HSEBYP bits before configuring the HSE --------------*/ |
mbed_official | 235:685d5f11838f | 264 | __HAL_RCC_HSE_CONFIG(RCC_HSE_OFF); |
mbed_official | 235:685d5f11838f | 265 | |
mbed_official | 235:685d5f11838f | 266 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 267 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 268 | |
mbed_official | 235:685d5f11838f | 269 | /* Wait till HSE is disabled */ |
mbed_official | 235:685d5f11838f | 270 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) |
mbed_official | 235:685d5f11838f | 271 | { |
mbed_official | 235:685d5f11838f | 272 | if((HAL_GetTick() - tickstart ) > HSE_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 273 | { |
mbed_official | 235:685d5f11838f | 274 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 275 | } |
mbed_official | 235:685d5f11838f | 276 | } |
mbed_official | 235:685d5f11838f | 277 | |
mbed_official | 235:685d5f11838f | 278 | /* Set the new HSE configuration ---------------------------------------*/ |
mbed_official | 235:685d5f11838f | 279 | __HAL_RCC_HSE_CONFIG(RCC_OscInitStruct->HSEState); |
mbed_official | 235:685d5f11838f | 280 | |
mbed_official | 235:685d5f11838f | 281 | /* Check the HSE State */ |
mbed_official | 235:685d5f11838f | 282 | if((RCC_OscInitStruct->HSEState) == RCC_HSE_ON) |
mbed_official | 235:685d5f11838f | 283 | { |
mbed_official | 235:685d5f11838f | 284 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 285 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 286 | |
mbed_official | 235:685d5f11838f | 287 | /* Wait till HSE is ready */ |
mbed_official | 235:685d5f11838f | 288 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET) |
mbed_official | 235:685d5f11838f | 289 | { |
mbed_official | 235:685d5f11838f | 290 | if((HAL_GetTick() - tickstart ) > HSE_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 291 | { |
mbed_official | 235:685d5f11838f | 292 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 293 | } |
mbed_official | 235:685d5f11838f | 294 | } |
mbed_official | 235:685d5f11838f | 295 | } |
mbed_official | 235:685d5f11838f | 296 | else |
mbed_official | 235:685d5f11838f | 297 | { |
mbed_official | 235:685d5f11838f | 298 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 299 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 300 | |
mbed_official | 235:685d5f11838f | 301 | /* Wait till HSE is bypassed or disabled */ |
mbed_official | 235:685d5f11838f | 302 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) != RESET) |
mbed_official | 235:685d5f11838f | 303 | { |
mbed_official | 235:685d5f11838f | 304 | if((HAL_GetTick() - tickstart ) > HSE_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 305 | { |
mbed_official | 235:685d5f11838f | 306 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 307 | } |
mbed_official | 235:685d5f11838f | 308 | } |
mbed_official | 235:685d5f11838f | 309 | } |
mbed_official | 235:685d5f11838f | 310 | } |
mbed_official | 235:685d5f11838f | 311 | } |
mbed_official | 235:685d5f11838f | 312 | /*----------------------------- HSI Configuration --------------------------*/ |
mbed_official | 235:685d5f11838f | 313 | if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_HSI) == RCC_OSCILLATORTYPE_HSI) |
mbed_official | 235:685d5f11838f | 314 | { |
mbed_official | 235:685d5f11838f | 315 | /* Check the parameters */ |
mbed_official | 235:685d5f11838f | 316 | assert_param(IS_RCC_HSI(RCC_OscInitStruct->HSIState)); |
mbed_official | 235:685d5f11838f | 317 | assert_param(IS_RCC_CALIBRATION_VALUE(RCC_OscInitStruct->HSICalibrationValue)); |
mbed_official | 235:685d5f11838f | 318 | |
mbed_official | 235:685d5f11838f | 319 | /* Check if HSI is used as system clock or as PLL source when PLL is selected as system clock */ |
mbed_official | 235:685d5f11838f | 320 | if((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_HSI) || ((__HAL_RCC_GET_SYSCLK_SOURCE() == RCC_CFGR_SWS_PLL) && ((RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) == RCC_PLLCFGR_PLLSRC_HSI))) |
mbed_official | 235:685d5f11838f | 321 | { |
mbed_official | 235:685d5f11838f | 322 | /* When HSI is used as system clock it will not disabled */ |
mbed_official | 235:685d5f11838f | 323 | if((__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) && (RCC_OscInitStruct->HSIState != RCC_HSI_ON)) |
mbed_official | 235:685d5f11838f | 324 | { |
mbed_official | 235:685d5f11838f | 325 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 326 | } |
mbed_official | 235:685d5f11838f | 327 | /* Otherwise, just the calibration is allowed */ |
mbed_official | 235:685d5f11838f | 328 | else |
mbed_official | 235:685d5f11838f | 329 | { |
mbed_official | 235:685d5f11838f | 330 | /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/ |
mbed_official | 235:685d5f11838f | 331 | __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue); |
mbed_official | 235:685d5f11838f | 332 | } |
mbed_official | 235:685d5f11838f | 333 | } |
mbed_official | 235:685d5f11838f | 334 | else |
mbed_official | 235:685d5f11838f | 335 | { |
mbed_official | 235:685d5f11838f | 336 | /* Check the HSI State */ |
mbed_official | 235:685d5f11838f | 337 | if((RCC_OscInitStruct->HSIState)!= RCC_HSI_OFF) |
mbed_official | 235:685d5f11838f | 338 | { |
mbed_official | 235:685d5f11838f | 339 | /* Enable the Internal High Speed oscillator (HSI). */ |
mbed_official | 235:685d5f11838f | 340 | __HAL_RCC_HSI_ENABLE(); |
mbed_official | 235:685d5f11838f | 341 | |
mbed_official | 235:685d5f11838f | 342 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 343 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 344 | |
mbed_official | 235:685d5f11838f | 345 | /* Wait till HSI is ready */ |
mbed_official | 235:685d5f11838f | 346 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET) |
mbed_official | 235:685d5f11838f | 347 | { |
mbed_official | 235:685d5f11838f | 348 | if((HAL_GetTick() - tickstart ) > HSI_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 349 | { |
mbed_official | 235:685d5f11838f | 350 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 351 | } |
mbed_official | 235:685d5f11838f | 352 | } |
mbed_official | 235:685d5f11838f | 353 | |
mbed_official | 235:685d5f11838f | 354 | /* Adjusts the Internal High Speed oscillator (HSI) calibration value.*/ |
mbed_official | 235:685d5f11838f | 355 | __HAL_RCC_HSI_CALIBRATIONVALUE_ADJUST(RCC_OscInitStruct->HSICalibrationValue); |
mbed_official | 235:685d5f11838f | 356 | } |
mbed_official | 235:685d5f11838f | 357 | else |
mbed_official | 235:685d5f11838f | 358 | { |
mbed_official | 235:685d5f11838f | 359 | /* Disable the Internal High Speed oscillator (HSI). */ |
mbed_official | 235:685d5f11838f | 360 | __HAL_RCC_HSI_DISABLE(); |
mbed_official | 235:685d5f11838f | 361 | |
mbed_official | 235:685d5f11838f | 362 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 363 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 364 | |
mbed_official | 235:685d5f11838f | 365 | /* Wait till HSI is ready */ |
mbed_official | 235:685d5f11838f | 366 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) != RESET) |
mbed_official | 235:685d5f11838f | 367 | { |
mbed_official | 235:685d5f11838f | 368 | if((HAL_GetTick() - tickstart ) > HSI_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 369 | { |
mbed_official | 235:685d5f11838f | 370 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 371 | } |
mbed_official | 235:685d5f11838f | 372 | } |
mbed_official | 235:685d5f11838f | 373 | } |
mbed_official | 235:685d5f11838f | 374 | } |
mbed_official | 235:685d5f11838f | 375 | } |
mbed_official | 235:685d5f11838f | 376 | /*------------------------------ LSI Configuration -------------------------*/ |
mbed_official | 235:685d5f11838f | 377 | if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSI) == RCC_OSCILLATORTYPE_LSI) |
mbed_official | 235:685d5f11838f | 378 | { |
mbed_official | 235:685d5f11838f | 379 | /* Check the parameters */ |
mbed_official | 235:685d5f11838f | 380 | assert_param(IS_RCC_LSI(RCC_OscInitStruct->LSIState)); |
mbed_official | 235:685d5f11838f | 381 | |
mbed_official | 235:685d5f11838f | 382 | /* Check the LSI State */ |
mbed_official | 235:685d5f11838f | 383 | if((RCC_OscInitStruct->LSIState)!= RCC_LSI_OFF) |
mbed_official | 235:685d5f11838f | 384 | { |
mbed_official | 235:685d5f11838f | 385 | /* Enable the Internal Low Speed oscillator (LSI). */ |
mbed_official | 235:685d5f11838f | 386 | __HAL_RCC_LSI_ENABLE(); |
mbed_official | 235:685d5f11838f | 387 | |
mbed_official | 235:685d5f11838f | 388 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 389 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 390 | |
mbed_official | 235:685d5f11838f | 391 | /* Wait till LSI is ready */ |
mbed_official | 235:685d5f11838f | 392 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) == RESET) |
mbed_official | 235:685d5f11838f | 393 | { |
mbed_official | 235:685d5f11838f | 394 | if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 395 | { |
mbed_official | 235:685d5f11838f | 396 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 397 | } |
mbed_official | 235:685d5f11838f | 398 | } |
mbed_official | 235:685d5f11838f | 399 | } |
mbed_official | 235:685d5f11838f | 400 | else |
mbed_official | 235:685d5f11838f | 401 | { |
mbed_official | 235:685d5f11838f | 402 | /* Disable the Internal Low Speed oscillator (LSI). */ |
mbed_official | 235:685d5f11838f | 403 | __HAL_RCC_LSI_DISABLE(); |
mbed_official | 235:685d5f11838f | 404 | |
mbed_official | 235:685d5f11838f | 405 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 406 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 407 | |
mbed_official | 235:685d5f11838f | 408 | /* Wait till LSI is ready */ |
mbed_official | 235:685d5f11838f | 409 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSIRDY) != RESET) |
mbed_official | 235:685d5f11838f | 410 | { |
mbed_official | 235:685d5f11838f | 411 | if((HAL_GetTick() - tickstart ) > LSI_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 412 | { |
mbed_official | 235:685d5f11838f | 413 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 414 | } |
mbed_official | 235:685d5f11838f | 415 | } |
mbed_official | 235:685d5f11838f | 416 | } |
mbed_official | 235:685d5f11838f | 417 | } |
mbed_official | 235:685d5f11838f | 418 | /*------------------------------ LSE Configuration -------------------------*/ |
mbed_official | 235:685d5f11838f | 419 | if(((RCC_OscInitStruct->OscillatorType) & RCC_OSCILLATORTYPE_LSE) == RCC_OSCILLATORTYPE_LSE) |
mbed_official | 235:685d5f11838f | 420 | { |
mbed_official | 235:685d5f11838f | 421 | /* Check the parameters */ |
mbed_official | 235:685d5f11838f | 422 | assert_param(IS_RCC_LSE(RCC_OscInitStruct->LSEState)); |
mbed_official | 235:685d5f11838f | 423 | |
mbed_official | 235:685d5f11838f | 424 | /* Enable Power Clock*/ |
mbed_official | 235:685d5f11838f | 425 | __PWR_CLK_ENABLE(); |
mbed_official | 235:685d5f11838f | 426 | |
mbed_official | 235:685d5f11838f | 427 | /* Enable write access to Backup domain */ |
mbed_official | 235:685d5f11838f | 428 | PWR->CR |= PWR_CR_DBP; |
mbed_official | 235:685d5f11838f | 429 | |
mbed_official | 235:685d5f11838f | 430 | /* Wait for Backup domain Write protection disable */ |
mbed_official | 235:685d5f11838f | 431 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 432 | |
mbed_official | 235:685d5f11838f | 433 | while((PWR->CR & PWR_CR_DBP) == RESET) |
mbed_official | 235:685d5f11838f | 434 | { |
mbed_official | 235:685d5f11838f | 435 | if((HAL_GetTick() - tickstart ) > DBP_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 436 | { |
mbed_official | 235:685d5f11838f | 437 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 438 | } |
mbed_official | 235:685d5f11838f | 439 | } |
mbed_official | 235:685d5f11838f | 440 | |
mbed_official | 235:685d5f11838f | 441 | /* Reset LSEON and LSEBYP bits before configuring the LSE ----------------*/ |
mbed_official | 235:685d5f11838f | 442 | __HAL_RCC_LSE_CONFIG(RCC_LSE_OFF); |
mbed_official | 235:685d5f11838f | 443 | |
mbed_official | 235:685d5f11838f | 444 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 445 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 446 | |
mbed_official | 235:685d5f11838f | 447 | /* Wait till LSE is ready */ |
mbed_official | 235:685d5f11838f | 448 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET) |
mbed_official | 235:685d5f11838f | 449 | { |
mbed_official | 235:685d5f11838f | 450 | if((HAL_GetTick() - tickstart ) > LSE_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 451 | { |
mbed_official | 235:685d5f11838f | 452 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 453 | } |
mbed_official | 235:685d5f11838f | 454 | } |
mbed_official | 235:685d5f11838f | 455 | |
mbed_official | 235:685d5f11838f | 456 | /* Set the new LSE configuration -----------------------------------------*/ |
mbed_official | 235:685d5f11838f | 457 | __HAL_RCC_LSE_CONFIG(RCC_OscInitStruct->LSEState); |
mbed_official | 235:685d5f11838f | 458 | /* Check the LSE State */ |
mbed_official | 235:685d5f11838f | 459 | if((RCC_OscInitStruct->LSEState) == RCC_LSE_ON) |
mbed_official | 235:685d5f11838f | 460 | { |
mbed_official | 235:685d5f11838f | 461 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 462 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 463 | |
mbed_official | 235:685d5f11838f | 464 | /* Wait till LSE is ready */ |
mbed_official | 235:685d5f11838f | 465 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) == RESET) |
mbed_official | 235:685d5f11838f | 466 | { |
mbed_official | 235:685d5f11838f | 467 | if((HAL_GetTick() - tickstart ) > LSE_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 468 | { |
mbed_official | 235:685d5f11838f | 469 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 470 | } |
mbed_official | 235:685d5f11838f | 471 | } |
mbed_official | 235:685d5f11838f | 472 | } |
mbed_official | 235:685d5f11838f | 473 | else |
mbed_official | 235:685d5f11838f | 474 | { |
mbed_official | 235:685d5f11838f | 475 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 476 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 477 | |
mbed_official | 235:685d5f11838f | 478 | /* Wait till LSE is ready */ |
mbed_official | 235:685d5f11838f | 479 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_LSERDY) != RESET) |
mbed_official | 235:685d5f11838f | 480 | { |
mbed_official | 235:685d5f11838f | 481 | if((HAL_GetTick() - tickstart ) > LSE_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 482 | { |
mbed_official | 235:685d5f11838f | 483 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 484 | } |
mbed_official | 235:685d5f11838f | 485 | } |
mbed_official | 235:685d5f11838f | 486 | } |
mbed_official | 235:685d5f11838f | 487 | } |
mbed_official | 235:685d5f11838f | 488 | /*-------------------------------- PLL Configuration -----------------------*/ |
mbed_official | 235:685d5f11838f | 489 | /* Check the parameters */ |
mbed_official | 235:685d5f11838f | 490 | assert_param(IS_RCC_PLL(RCC_OscInitStruct->PLL.PLLState)); |
mbed_official | 235:685d5f11838f | 491 | if ((RCC_OscInitStruct->PLL.PLLState) != RCC_PLL_NONE) |
mbed_official | 235:685d5f11838f | 492 | { |
mbed_official | 235:685d5f11838f | 493 | /* Check if the PLL is used as system clock or not */ |
mbed_official | 235:685d5f11838f | 494 | if(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL) |
mbed_official | 235:685d5f11838f | 495 | { |
mbed_official | 235:685d5f11838f | 496 | if((RCC_OscInitStruct->PLL.PLLState) == RCC_PLL_ON) |
mbed_official | 235:685d5f11838f | 497 | { |
mbed_official | 235:685d5f11838f | 498 | /* Check the parameters */ |
mbed_official | 235:685d5f11838f | 499 | assert_param(IS_RCC_PLLSOURCE(RCC_OscInitStruct->PLL.PLLSource)); |
mbed_official | 235:685d5f11838f | 500 | assert_param(IS_RCC_PLLM_VALUE(RCC_OscInitStruct->PLL.PLLM)); |
mbed_official | 235:685d5f11838f | 501 | assert_param(IS_RCC_PLLN_VALUE(RCC_OscInitStruct->PLL.PLLN)); |
mbed_official | 235:685d5f11838f | 502 | assert_param(IS_RCC_PLLP_VALUE(RCC_OscInitStruct->PLL.PLLP)); |
mbed_official | 235:685d5f11838f | 503 | assert_param(IS_RCC_PLLQ_VALUE(RCC_OscInitStruct->PLL.PLLQ)); |
mbed_official | 235:685d5f11838f | 504 | |
mbed_official | 235:685d5f11838f | 505 | /* Disable the main PLL. */ |
mbed_official | 235:685d5f11838f | 506 | __HAL_RCC_PLL_DISABLE(); |
mbed_official | 235:685d5f11838f | 507 | |
mbed_official | 235:685d5f11838f | 508 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 509 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 510 | |
mbed_official | 235:685d5f11838f | 511 | /* Wait till PLL is ready */ |
mbed_official | 235:685d5f11838f | 512 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET) |
mbed_official | 235:685d5f11838f | 513 | { |
mbed_official | 235:685d5f11838f | 514 | if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 515 | { |
mbed_official | 235:685d5f11838f | 516 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 517 | } |
mbed_official | 235:685d5f11838f | 518 | } |
mbed_official | 235:685d5f11838f | 519 | |
mbed_official | 235:685d5f11838f | 520 | /* Configure the main PLL clock source, multiplication and division factors. */ |
mbed_official | 235:685d5f11838f | 521 | __HAL_RCC_PLL_CONFIG(RCC_OscInitStruct->PLL.PLLSource, |
mbed_official | 235:685d5f11838f | 522 | RCC_OscInitStruct->PLL.PLLM, |
mbed_official | 235:685d5f11838f | 523 | RCC_OscInitStruct->PLL.PLLN, |
mbed_official | 235:685d5f11838f | 524 | RCC_OscInitStruct->PLL.PLLP, |
mbed_official | 235:685d5f11838f | 525 | RCC_OscInitStruct->PLL.PLLQ); |
mbed_official | 235:685d5f11838f | 526 | /* Enable the main PLL. */ |
mbed_official | 235:685d5f11838f | 527 | __HAL_RCC_PLL_ENABLE(); |
mbed_official | 235:685d5f11838f | 528 | |
mbed_official | 235:685d5f11838f | 529 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 530 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 531 | |
mbed_official | 235:685d5f11838f | 532 | /* Wait till PLL is ready */ |
mbed_official | 235:685d5f11838f | 533 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET) |
mbed_official | 235:685d5f11838f | 534 | { |
mbed_official | 235:685d5f11838f | 535 | if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 536 | { |
mbed_official | 235:685d5f11838f | 537 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 538 | } |
mbed_official | 235:685d5f11838f | 539 | } |
mbed_official | 235:685d5f11838f | 540 | } |
mbed_official | 235:685d5f11838f | 541 | else |
mbed_official | 235:685d5f11838f | 542 | { |
mbed_official | 235:685d5f11838f | 543 | /* Disable the main PLL. */ |
mbed_official | 235:685d5f11838f | 544 | __HAL_RCC_PLL_DISABLE(); |
mbed_official | 235:685d5f11838f | 545 | |
mbed_official | 235:685d5f11838f | 546 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 547 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 548 | |
mbed_official | 235:685d5f11838f | 549 | /* Wait till PLL is ready */ |
mbed_official | 235:685d5f11838f | 550 | while(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) != RESET) |
mbed_official | 235:685d5f11838f | 551 | { |
mbed_official | 235:685d5f11838f | 552 | if((HAL_GetTick() - tickstart ) > PLL_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 553 | { |
mbed_official | 235:685d5f11838f | 554 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 555 | } |
mbed_official | 235:685d5f11838f | 556 | } |
mbed_official | 235:685d5f11838f | 557 | } |
mbed_official | 235:685d5f11838f | 558 | } |
mbed_official | 235:685d5f11838f | 559 | else |
mbed_official | 235:685d5f11838f | 560 | { |
mbed_official | 235:685d5f11838f | 561 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 562 | } |
mbed_official | 235:685d5f11838f | 563 | } |
mbed_official | 235:685d5f11838f | 564 | return HAL_OK; |
mbed_official | 235:685d5f11838f | 565 | } |
mbed_official | 235:685d5f11838f | 566 | |
mbed_official | 235:685d5f11838f | 567 | /** |
mbed_official | 235:685d5f11838f | 568 | * @brief Initializes the CPU, AHB and APB busses clocks according to the specified |
mbed_official | 235:685d5f11838f | 569 | * parameters in the RCC_ClkInitStruct. |
mbed_official | 235:685d5f11838f | 570 | * @param RCC_ClkInitStruct: pointer to an RCC_OscInitTypeDef structure that |
mbed_official | 235:685d5f11838f | 571 | * contains the configuration information for the RCC peripheral. |
mbed_official | 235:685d5f11838f | 572 | * @param FLatency: FLASH Latency, this parameter depend on device selected |
mbed_official | 235:685d5f11838f | 573 | * |
mbed_official | 235:685d5f11838f | 574 | * @note The SystemCoreClock CMSIS variable is used to store System Clock Frequency |
mbed_official | 235:685d5f11838f | 575 | * and updated by HAL_RCC_GetHCLKFreq() function called within this function |
mbed_official | 235:685d5f11838f | 576 | * |
mbed_official | 235:685d5f11838f | 577 | * @note The HSI is used (enabled by hardware) as system clock source after |
mbed_official | 235:685d5f11838f | 578 | * startup from Reset, wake-up from STOP and STANDBY mode, or in case |
mbed_official | 235:685d5f11838f | 579 | * of failure of the HSE used directly or indirectly as system clock |
mbed_official | 235:685d5f11838f | 580 | * (if the Clock Security System CSS is enabled). |
mbed_official | 235:685d5f11838f | 581 | * |
mbed_official | 235:685d5f11838f | 582 | * @note A switch from one clock source to another occurs only if the target |
mbed_official | 235:685d5f11838f | 583 | * clock source is ready (clock stable after startup delay or PLL locked). |
mbed_official | 235:685d5f11838f | 584 | * If a clock source which is not yet ready is selected, the switch will |
mbed_official | 235:685d5f11838f | 585 | * occur when the clock source will be ready. |
mbed_official | 235:685d5f11838f | 586 | * |
mbed_official | 235:685d5f11838f | 587 | * @note Depending on the device voltage range, the software has to set correctly |
mbed_official | 235:685d5f11838f | 588 | * HPRE[3:0] bits to ensure that HCLK not exceed the maximum allowed frequency |
mbed_official | 235:685d5f11838f | 589 | * (for more details refer to section above "Initialization/de-initialization functions") |
mbed_official | 235:685d5f11838f | 590 | * @retval None |
mbed_official | 235:685d5f11838f | 591 | */ |
mbed_official | 235:685d5f11838f | 592 | HAL_StatusTypeDef HAL_RCC_ClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t FLatency) |
mbed_official | 235:685d5f11838f | 593 | { |
mbed_official | 235:685d5f11838f | 594 | uint32_t tickstart = 0; |
mbed_official | 235:685d5f11838f | 595 | |
mbed_official | 235:685d5f11838f | 596 | /* Check the parameters */ |
mbed_official | 235:685d5f11838f | 597 | assert_param(IS_RCC_CLOCKTYPE(RCC_ClkInitStruct->ClockType)); |
mbed_official | 235:685d5f11838f | 598 | assert_param(IS_FLASH_LATENCY(FLatency)); |
mbed_official | 235:685d5f11838f | 599 | |
mbed_official | 235:685d5f11838f | 600 | /* To correctly read data from FLASH memory, the number of wait states (LATENCY) |
mbed_official | 235:685d5f11838f | 601 | must be correctly programmed according to the frequency of the CPU clock |
mbed_official | 235:685d5f11838f | 602 | (HCLK) and the supply voltage of the device. */ |
mbed_official | 235:685d5f11838f | 603 | |
mbed_official | 235:685d5f11838f | 604 | /* Increasing the CPU frequency */ |
mbed_official | 235:685d5f11838f | 605 | if(FLatency > (FLASH->ACR & FLASH_ACR_LATENCY)) |
mbed_official | 235:685d5f11838f | 606 | { |
mbed_official | 235:685d5f11838f | 607 | /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */ |
mbed_official | 235:685d5f11838f | 608 | __HAL_FLASH_SET_LATENCY(FLatency); |
mbed_official | 235:685d5f11838f | 609 | |
mbed_official | 235:685d5f11838f | 610 | /* Check that the new number of wait states is taken into account to access the Flash |
mbed_official | 235:685d5f11838f | 611 | memory by reading the FLASH_ACR register */ |
mbed_official | 235:685d5f11838f | 612 | if((FLASH->ACR & FLASH_ACR_LATENCY) != FLatency) |
mbed_official | 235:685d5f11838f | 613 | { |
mbed_official | 235:685d5f11838f | 614 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 615 | } |
mbed_official | 235:685d5f11838f | 616 | |
mbed_official | 235:685d5f11838f | 617 | /*-------------------------- HCLK Configuration --------------------------*/ |
mbed_official | 235:685d5f11838f | 618 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK) |
mbed_official | 235:685d5f11838f | 619 | { |
mbed_official | 235:685d5f11838f | 620 | assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider)); |
mbed_official | 235:685d5f11838f | 621 | MODIFY_REG(RCC->CFGR, RCC_CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider); |
mbed_official | 235:685d5f11838f | 622 | } |
mbed_official | 235:685d5f11838f | 623 | |
mbed_official | 235:685d5f11838f | 624 | /*------------------------- SYSCLK Configuration ---------------------------*/ |
mbed_official | 235:685d5f11838f | 625 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK) |
mbed_official | 235:685d5f11838f | 626 | { |
mbed_official | 235:685d5f11838f | 627 | assert_param(IS_RCC_SYSCLKSOURCE(RCC_ClkInitStruct->SYSCLKSource)); |
mbed_official | 235:685d5f11838f | 628 | |
mbed_official | 235:685d5f11838f | 629 | /* HSE is selected as System Clock Source */ |
mbed_official | 235:685d5f11838f | 630 | if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) |
mbed_official | 235:685d5f11838f | 631 | { |
mbed_official | 235:685d5f11838f | 632 | /* Check the HSE ready flag */ |
mbed_official | 235:685d5f11838f | 633 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET) |
mbed_official | 235:685d5f11838f | 634 | { |
mbed_official | 235:685d5f11838f | 635 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 636 | } |
mbed_official | 235:685d5f11838f | 637 | } |
mbed_official | 235:685d5f11838f | 638 | /* PLL is selected as System Clock Source */ |
mbed_official | 235:685d5f11838f | 639 | else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) |
mbed_official | 235:685d5f11838f | 640 | { |
mbed_official | 235:685d5f11838f | 641 | /* Check the PLL ready flag */ |
mbed_official | 235:685d5f11838f | 642 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET) |
mbed_official | 235:685d5f11838f | 643 | { |
mbed_official | 235:685d5f11838f | 644 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 645 | } |
mbed_official | 235:685d5f11838f | 646 | } |
mbed_official | 235:685d5f11838f | 647 | /* HSI is selected as System Clock Source */ |
mbed_official | 235:685d5f11838f | 648 | else |
mbed_official | 235:685d5f11838f | 649 | { |
mbed_official | 235:685d5f11838f | 650 | /* Check the HSI ready flag */ |
mbed_official | 235:685d5f11838f | 651 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET) |
mbed_official | 235:685d5f11838f | 652 | { |
mbed_official | 235:685d5f11838f | 653 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 654 | } |
mbed_official | 235:685d5f11838f | 655 | } |
mbed_official | 235:685d5f11838f | 656 | MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_ClkInitStruct->SYSCLKSource); |
mbed_official | 235:685d5f11838f | 657 | |
mbed_official | 235:685d5f11838f | 658 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 659 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 660 | |
mbed_official | 235:685d5f11838f | 661 | if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) |
mbed_official | 235:685d5f11838f | 662 | { |
mbed_official | 235:685d5f11838f | 663 | while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_HSE) |
mbed_official | 235:685d5f11838f | 664 | { |
mbed_official | 235:685d5f11838f | 665 | if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 666 | { |
mbed_official | 235:685d5f11838f | 667 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 668 | } |
mbed_official | 235:685d5f11838f | 669 | } |
mbed_official | 235:685d5f11838f | 670 | } |
mbed_official | 235:685d5f11838f | 671 | else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) |
mbed_official | 235:685d5f11838f | 672 | { |
mbed_official | 235:685d5f11838f | 673 | while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL) |
mbed_official | 235:685d5f11838f | 674 | { |
mbed_official | 235:685d5f11838f | 675 | if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 676 | { |
mbed_official | 235:685d5f11838f | 677 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 678 | } |
mbed_official | 235:685d5f11838f | 679 | } |
mbed_official | 235:685d5f11838f | 680 | } |
mbed_official | 235:685d5f11838f | 681 | else |
mbed_official | 235:685d5f11838f | 682 | { |
mbed_official | 235:685d5f11838f | 683 | while(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_HSI) |
mbed_official | 235:685d5f11838f | 684 | { |
mbed_official | 235:685d5f11838f | 685 | if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 686 | { |
mbed_official | 235:685d5f11838f | 687 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 688 | } |
mbed_official | 235:685d5f11838f | 689 | } |
mbed_official | 235:685d5f11838f | 690 | } |
mbed_official | 235:685d5f11838f | 691 | } |
mbed_official | 235:685d5f11838f | 692 | } |
mbed_official | 235:685d5f11838f | 693 | /* Decreasing the CPU frequency */ |
mbed_official | 235:685d5f11838f | 694 | else |
mbed_official | 235:685d5f11838f | 695 | { |
mbed_official | 235:685d5f11838f | 696 | /*-------------------------- HCLK Configuration --------------------------*/ |
mbed_official | 235:685d5f11838f | 697 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_HCLK) == RCC_CLOCKTYPE_HCLK) |
mbed_official | 235:685d5f11838f | 698 | { |
mbed_official | 235:685d5f11838f | 699 | assert_param(IS_RCC_HCLK(RCC_ClkInitStruct->AHBCLKDivider)); |
mbed_official | 235:685d5f11838f | 700 | MODIFY_REG(RCC->CFGR, RCC_CFGR_HPRE, RCC_ClkInitStruct->AHBCLKDivider); |
mbed_official | 235:685d5f11838f | 701 | } |
mbed_official | 235:685d5f11838f | 702 | |
mbed_official | 235:685d5f11838f | 703 | /*------------------------- SYSCLK Configuration -------------------------*/ |
mbed_official | 235:685d5f11838f | 704 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_SYSCLK) == RCC_CLOCKTYPE_SYSCLK) |
mbed_official | 235:685d5f11838f | 705 | { |
mbed_official | 235:685d5f11838f | 706 | assert_param(IS_RCC_SYSCLKSOURCE(RCC_ClkInitStruct->SYSCLKSource)); |
mbed_official | 235:685d5f11838f | 707 | |
mbed_official | 235:685d5f11838f | 708 | /* HSE is selected as System Clock Source */ |
mbed_official | 235:685d5f11838f | 709 | if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) |
mbed_official | 235:685d5f11838f | 710 | { |
mbed_official | 235:685d5f11838f | 711 | /* Check the HSE ready flag */ |
mbed_official | 235:685d5f11838f | 712 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSERDY) == RESET) |
mbed_official | 235:685d5f11838f | 713 | { |
mbed_official | 235:685d5f11838f | 714 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 715 | } |
mbed_official | 235:685d5f11838f | 716 | } |
mbed_official | 235:685d5f11838f | 717 | /* PLL is selected as System Clock Source */ |
mbed_official | 235:685d5f11838f | 718 | else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) |
mbed_official | 235:685d5f11838f | 719 | { |
mbed_official | 235:685d5f11838f | 720 | /* Check the PLL ready flag */ |
mbed_official | 235:685d5f11838f | 721 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_PLLRDY) == RESET) |
mbed_official | 235:685d5f11838f | 722 | { |
mbed_official | 235:685d5f11838f | 723 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 724 | } |
mbed_official | 235:685d5f11838f | 725 | } |
mbed_official | 235:685d5f11838f | 726 | /* HSI is selected as System Clock Source */ |
mbed_official | 235:685d5f11838f | 727 | else |
mbed_official | 235:685d5f11838f | 728 | { |
mbed_official | 235:685d5f11838f | 729 | /* Check the HSI ready flag */ |
mbed_official | 235:685d5f11838f | 730 | if(__HAL_RCC_GET_FLAG(RCC_FLAG_HSIRDY) == RESET) |
mbed_official | 235:685d5f11838f | 731 | { |
mbed_official | 235:685d5f11838f | 732 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 733 | } |
mbed_official | 235:685d5f11838f | 734 | } |
mbed_official | 235:685d5f11838f | 735 | MODIFY_REG(RCC->CFGR, RCC_CFGR_SW, RCC_ClkInitStruct->SYSCLKSource); |
mbed_official | 235:685d5f11838f | 736 | |
mbed_official | 235:685d5f11838f | 737 | /* Get Start Tick*/ |
mbed_official | 235:685d5f11838f | 738 | tickstart = HAL_GetTick(); |
mbed_official | 235:685d5f11838f | 739 | |
mbed_official | 235:685d5f11838f | 740 | if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_HSE) |
mbed_official | 235:685d5f11838f | 741 | { |
mbed_official | 235:685d5f11838f | 742 | while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_HSE) |
mbed_official | 235:685d5f11838f | 743 | { |
mbed_official | 235:685d5f11838f | 744 | if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 745 | { |
mbed_official | 235:685d5f11838f | 746 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 747 | } |
mbed_official | 235:685d5f11838f | 748 | } |
mbed_official | 235:685d5f11838f | 749 | } |
mbed_official | 235:685d5f11838f | 750 | else if(RCC_ClkInitStruct->SYSCLKSource == RCC_SYSCLKSOURCE_PLLCLK) |
mbed_official | 235:685d5f11838f | 751 | { |
mbed_official | 235:685d5f11838f | 752 | while (__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_PLL) |
mbed_official | 235:685d5f11838f | 753 | { |
mbed_official | 235:685d5f11838f | 754 | if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 755 | { |
mbed_official | 235:685d5f11838f | 756 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 757 | } |
mbed_official | 235:685d5f11838f | 758 | } |
mbed_official | 235:685d5f11838f | 759 | } |
mbed_official | 235:685d5f11838f | 760 | else |
mbed_official | 235:685d5f11838f | 761 | { |
mbed_official | 235:685d5f11838f | 762 | while(__HAL_RCC_GET_SYSCLK_SOURCE() != RCC_CFGR_SWS_HSI) |
mbed_official | 235:685d5f11838f | 763 | { |
mbed_official | 235:685d5f11838f | 764 | if((HAL_GetTick() - tickstart ) > CLOCKSWITCH_TIMEOUT_VALUE) |
mbed_official | 235:685d5f11838f | 765 | { |
mbed_official | 235:685d5f11838f | 766 | return HAL_TIMEOUT; |
mbed_official | 235:685d5f11838f | 767 | } |
mbed_official | 235:685d5f11838f | 768 | } |
mbed_official | 235:685d5f11838f | 769 | } |
mbed_official | 235:685d5f11838f | 770 | } |
mbed_official | 235:685d5f11838f | 771 | |
mbed_official | 235:685d5f11838f | 772 | /* Program the new number of wait states to the LATENCY bits in the FLASH_ACR register */ |
mbed_official | 235:685d5f11838f | 773 | __HAL_FLASH_SET_LATENCY(FLatency); |
mbed_official | 235:685d5f11838f | 774 | |
mbed_official | 235:685d5f11838f | 775 | /* Check that the new number of wait states is taken into account to access the Flash |
mbed_official | 235:685d5f11838f | 776 | memory by reading the FLASH_ACR register */ |
mbed_official | 235:685d5f11838f | 777 | if((FLASH->ACR & FLASH_ACR_LATENCY) != FLatency) |
mbed_official | 235:685d5f11838f | 778 | { |
mbed_official | 235:685d5f11838f | 779 | return HAL_ERROR; |
mbed_official | 235:685d5f11838f | 780 | } |
mbed_official | 235:685d5f11838f | 781 | } |
mbed_official | 235:685d5f11838f | 782 | |
mbed_official | 235:685d5f11838f | 783 | /*-------------------------- PCLK1 Configuration ---------------------------*/ |
mbed_official | 235:685d5f11838f | 784 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK1) == RCC_CLOCKTYPE_PCLK1) |
mbed_official | 235:685d5f11838f | 785 | { |
mbed_official | 235:685d5f11838f | 786 | assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB1CLKDivider)); |
mbed_official | 235:685d5f11838f | 787 | MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE1, RCC_ClkInitStruct->APB1CLKDivider); |
mbed_official | 235:685d5f11838f | 788 | } |
mbed_official | 235:685d5f11838f | 789 | |
mbed_official | 235:685d5f11838f | 790 | /*-------------------------- PCLK2 Configuration ---------------------------*/ |
mbed_official | 235:685d5f11838f | 791 | if(((RCC_ClkInitStruct->ClockType) & RCC_CLOCKTYPE_PCLK2) == RCC_CLOCKTYPE_PCLK2) |
mbed_official | 235:685d5f11838f | 792 | { |
mbed_official | 235:685d5f11838f | 793 | assert_param(IS_RCC_PCLK(RCC_ClkInitStruct->APB2CLKDivider)); |
mbed_official | 235:685d5f11838f | 794 | MODIFY_REG(RCC->CFGR, RCC_CFGR_PPRE2, ((RCC_ClkInitStruct->APB2CLKDivider) << 3)); |
mbed_official | 235:685d5f11838f | 795 | } |
mbed_official | 235:685d5f11838f | 796 | |
mbed_official | 235:685d5f11838f | 797 | /* Configure the source of time base considering new system clocks settings*/ |
mbed_official | 235:685d5f11838f | 798 | HAL_InitTick (TICK_INT_PRIORITY); |
mbed_official | 235:685d5f11838f | 799 | |
mbed_official | 235:685d5f11838f | 800 | return HAL_OK; |
mbed_official | 235:685d5f11838f | 801 | } |
mbed_official | 235:685d5f11838f | 802 | |
mbed_official | 235:685d5f11838f | 803 | /** |
mbed_official | 235:685d5f11838f | 804 | * @} |
mbed_official | 235:685d5f11838f | 805 | */ |
mbed_official | 235:685d5f11838f | 806 | |
mbed_official | 235:685d5f11838f | 807 | /** @defgroup RCC_Group2 Peripheral Control functions |
mbed_official | 235:685d5f11838f | 808 | * @brief RCC clocks control functions |
mbed_official | 235:685d5f11838f | 809 | * |
mbed_official | 235:685d5f11838f | 810 | @verbatim |
mbed_official | 235:685d5f11838f | 811 | =============================================================================== |
mbed_official | 235:685d5f11838f | 812 | ##### Peripheral Control functions ##### |
mbed_official | 235:685d5f11838f | 813 | =============================================================================== |
mbed_official | 235:685d5f11838f | 814 | [..] |
mbed_official | 235:685d5f11838f | 815 | This subsection provides a set of functions allowing to control the RCC Clocks |
mbed_official | 235:685d5f11838f | 816 | frequencies. |
mbed_official | 235:685d5f11838f | 817 | |
mbed_official | 235:685d5f11838f | 818 | @endverbatim |
mbed_official | 235:685d5f11838f | 819 | * @{ |
mbed_official | 235:685d5f11838f | 820 | */ |
mbed_official | 235:685d5f11838f | 821 | |
mbed_official | 235:685d5f11838f | 822 | /** |
mbed_official | 235:685d5f11838f | 823 | * @brief Selects the clock source to output on MCO1 pin(PA8) or on MCO2 pin(PC9). |
mbed_official | 235:685d5f11838f | 824 | * @note PA8/PC9 should be configured in alternate function mode. |
mbed_official | 235:685d5f11838f | 825 | * @param RCC_MCOx: specifies the output direction for the clock source. |
mbed_official | 235:685d5f11838f | 826 | * This parameter can be one of the following values: |
mbed_official | 235:685d5f11838f | 827 | * @arg RCC_MCO1: Clock source to output on MCO1 pin(PA8). |
mbed_official | 235:685d5f11838f | 828 | * @arg RCC_MCO2: Clock source to output on MCO2 pin(PC9). |
mbed_official | 235:685d5f11838f | 829 | * @param RCC_MCOSource: specifies the clock source to output. |
mbed_official | 235:685d5f11838f | 830 | * This parameter can be one of the following values: |
mbed_official | 235:685d5f11838f | 831 | * @arg RCC_MCO1SOURCE_HSI: HSI clock selected as MCO1 source |
mbed_official | 235:685d5f11838f | 832 | * @arg RCC_MCO1SOURCE_LSE: LSE clock selected as MCO1 source |
mbed_official | 235:685d5f11838f | 833 | * @arg RCC_MCO1SOURCE_HSE: HSE clock selected as MCO1 source |
mbed_official | 235:685d5f11838f | 834 | * @arg RCC_MCO1SOURCE_PLLCLK: main PLL clock selected as MCO1 source |
mbed_official | 235:685d5f11838f | 835 | * @arg RCC_MCO2SOURCE_SYSCLK: System clock (SYSCLK) selected as MCO2 source |
mbed_official | 235:685d5f11838f | 836 | * @arg RCC_MCO2SOURCE_PLLI2SCLK: PLLI2S clock selected as MCO2 source |
mbed_official | 235:685d5f11838f | 837 | * @arg RCC_MCO2SOURCE_HSE: HSE clock selected as MCO2 source |
mbed_official | 235:685d5f11838f | 838 | * @arg RCC_MCO2SOURCE_PLLCLK: main PLL clock selected as MCO2 source |
mbed_official | 235:685d5f11838f | 839 | * @param RCC_MCODiv: specifies the MCOx prescaler. |
mbed_official | 235:685d5f11838f | 840 | * This parameter can be one of the following values: |
mbed_official | 235:685d5f11838f | 841 | * @arg RCC_MCODIV_1: no division applied to MCOx clock |
mbed_official | 235:685d5f11838f | 842 | * @arg RCC_MCODIV_2: division by 2 applied to MCOx clock |
mbed_official | 235:685d5f11838f | 843 | * @arg RCC_MCODIV_3: division by 3 applied to MCOx clock |
mbed_official | 235:685d5f11838f | 844 | * @arg RCC_MCODIV_4: division by 4 applied to MCOx clock |
mbed_official | 235:685d5f11838f | 845 | * @arg RCC_MCODIV_5: division by 5 applied to MCOx clock |
mbed_official | 235:685d5f11838f | 846 | * @retval None |
mbed_official | 235:685d5f11838f | 847 | */ |
mbed_official | 235:685d5f11838f | 848 | void HAL_RCC_MCOConfig(uint32_t RCC_MCOx, uint32_t RCC_MCOSource, uint32_t RCC_MCODiv) |
mbed_official | 235:685d5f11838f | 849 | { |
mbed_official | 235:685d5f11838f | 850 | GPIO_InitTypeDef GPIO_InitStruct; |
mbed_official | 235:685d5f11838f | 851 | /* Check the parameters */ |
mbed_official | 235:685d5f11838f | 852 | assert_param(IS_RCC_MCO(RCC_MCOx)); |
mbed_official | 235:685d5f11838f | 853 | assert_param(IS_RCC_MCODIV(RCC_MCODiv)); |
mbed_official | 235:685d5f11838f | 854 | /* RCC_MCO1 */ |
mbed_official | 235:685d5f11838f | 855 | if(RCC_MCOx == RCC_MCO1) |
mbed_official | 235:685d5f11838f | 856 | { |
mbed_official | 235:685d5f11838f | 857 | assert_param(IS_RCC_MCO1SOURCE(RCC_MCOSource)); |
mbed_official | 235:685d5f11838f | 858 | |
mbed_official | 235:685d5f11838f | 859 | /* MCO1 Clock Enable */ |
mbed_official | 235:685d5f11838f | 860 | __MCO1_CLK_ENABLE(); |
mbed_official | 235:685d5f11838f | 861 | |
mbed_official | 235:685d5f11838f | 862 | /* Configue the MCO1 pin in alternate function mode */ |
mbed_official | 235:685d5f11838f | 863 | GPIO_InitStruct.Pin = MCO1_PIN; |
mbed_official | 235:685d5f11838f | 864 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
mbed_official | 235:685d5f11838f | 865 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; |
mbed_official | 235:685d5f11838f | 866 | GPIO_InitStruct.Pull = GPIO_NOPULL; |
mbed_official | 235:685d5f11838f | 867 | GPIO_InitStruct.Alternate = GPIO_AF0_MCO; |
mbed_official | 235:685d5f11838f | 868 | HAL_GPIO_Init(MCO1_GPIO_PORT, &GPIO_InitStruct); |
mbed_official | 235:685d5f11838f | 869 | |
mbed_official | 235:685d5f11838f | 870 | /* Mask MCO1 and MCO1PRE[2:0] bits then Select MCO1 clock source and prescaler */ |
mbed_official | 235:685d5f11838f | 871 | MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO1 | RCC_CFGR_MCO1PRE), (RCC_MCOSource | RCC_MCODiv)); |
mbed_official | 235:685d5f11838f | 872 | } |
mbed_official | 235:685d5f11838f | 873 | else |
mbed_official | 235:685d5f11838f | 874 | { |
mbed_official | 235:685d5f11838f | 875 | assert_param(IS_RCC_MCO2SOURCE(RCC_MCOSource)); |
mbed_official | 235:685d5f11838f | 876 | |
mbed_official | 235:685d5f11838f | 877 | /* MCO2 Clock Enable */ |
mbed_official | 235:685d5f11838f | 878 | __MCO2_CLK_ENABLE(); |
mbed_official | 235:685d5f11838f | 879 | |
mbed_official | 235:685d5f11838f | 880 | /* Configue the MCO2 pin in alternate function mode */ |
mbed_official | 235:685d5f11838f | 881 | GPIO_InitStruct.Pin = MCO2_PIN; |
mbed_official | 235:685d5f11838f | 882 | GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; |
mbed_official | 235:685d5f11838f | 883 | GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; |
mbed_official | 235:685d5f11838f | 884 | GPIO_InitStruct.Pull = GPIO_NOPULL; |
mbed_official | 235:685d5f11838f | 885 | GPIO_InitStruct.Alternate = GPIO_AF0_MCO; |
mbed_official | 235:685d5f11838f | 886 | HAL_GPIO_Init(MCO2_GPIO_PORT, &GPIO_InitStruct); |
mbed_official | 235:685d5f11838f | 887 | |
mbed_official | 235:685d5f11838f | 888 | /* Mask MCO2 and MCO2PRE[2:0] bits then Select MCO2 clock source and prescaler */ |
mbed_official | 235:685d5f11838f | 889 | MODIFY_REG(RCC->CFGR, (RCC_CFGR_MCO2 | RCC_CFGR_MCO2PRE), (RCC_MCOSource | (RCC_MCODiv << 3))); |
mbed_official | 235:685d5f11838f | 890 | } |
mbed_official | 235:685d5f11838f | 891 | } |
mbed_official | 235:685d5f11838f | 892 | |
mbed_official | 235:685d5f11838f | 893 | /** |
mbed_official | 235:685d5f11838f | 894 | * @brief Enables the Clock Security System. |
mbed_official | 235:685d5f11838f | 895 | * @note If a failure is detected on the HSE oscillator clock, this oscillator |
mbed_official | 235:685d5f11838f | 896 | * is automatically disabled and an interrupt is generated to inform the |
mbed_official | 235:685d5f11838f | 897 | * software about the failure (Clock Security System Interrupt, CSSI), |
mbed_official | 235:685d5f11838f | 898 | * allowing the MCU to perform rescue operations. The CSSI is linked to |
mbed_official | 235:685d5f11838f | 899 | * the Cortex-M4 NMI (Non-Maskable Interrupt) exception vector. |
mbed_official | 235:685d5f11838f | 900 | * @param None |
mbed_official | 235:685d5f11838f | 901 | * @retval None |
mbed_official | 235:685d5f11838f | 902 | */ |
mbed_official | 235:685d5f11838f | 903 | void HAL_RCC_EnableCSS(void) |
mbed_official | 235:685d5f11838f | 904 | { |
mbed_official | 235:685d5f11838f | 905 | *(__IO uint32_t *) CR_CSSON_BB = (uint32_t)ENABLE; |
mbed_official | 235:685d5f11838f | 906 | } |
mbed_official | 235:685d5f11838f | 907 | |
mbed_official | 235:685d5f11838f | 908 | /** |
mbed_official | 235:685d5f11838f | 909 | * @brief Disables the Clock Security System. |
mbed_official | 235:685d5f11838f | 910 | * @param None |
mbed_official | 235:685d5f11838f | 911 | * @retval None |
mbed_official | 235:685d5f11838f | 912 | */ |
mbed_official | 235:685d5f11838f | 913 | void HAL_RCC_DisableCSS(void) |
mbed_official | 235:685d5f11838f | 914 | { |
mbed_official | 235:685d5f11838f | 915 | *(__IO uint32_t *) CR_CSSON_BB = (uint32_t)DISABLE; |
mbed_official | 235:685d5f11838f | 916 | } |
mbed_official | 235:685d5f11838f | 917 | |
mbed_official | 235:685d5f11838f | 918 | /** |
mbed_official | 235:685d5f11838f | 919 | * @brief Returns the SYSCLK frequency |
mbed_official | 235:685d5f11838f | 920 | * |
mbed_official | 235:685d5f11838f | 921 | * @note The system frequency computed by this function is not the real |
mbed_official | 235:685d5f11838f | 922 | * frequency in the chip. It is calculated based on the predefined |
mbed_official | 235:685d5f11838f | 923 | * constant and the selected clock source: |
mbed_official | 235:685d5f11838f | 924 | * @note If SYSCLK source is HSI, function returns values based on HSI_VALUE(*) |
mbed_official | 235:685d5f11838f | 925 | * @note If SYSCLK source is HSE, function returns values based on HSE_VALUE(**) |
mbed_official | 235:685d5f11838f | 926 | * @note If SYSCLK source is PLL, function returns values based on HSE_VALUE(**) |
mbed_official | 235:685d5f11838f | 927 | * or HSI_VALUE(*) multiplied/divided by the PLL factors. |
mbed_official | 235:685d5f11838f | 928 | * @note (*) HSI_VALUE is a constant defined in stm32f4xx_hal_conf.h file (default value |
mbed_official | 235:685d5f11838f | 929 | * 16 MHz) but the real value may vary depending on the variations |
mbed_official | 235:685d5f11838f | 930 | * in voltage and temperature. |
mbed_official | 235:685d5f11838f | 931 | * @note (**) HSE_VALUE is a constant defined in stm32f4xx_hal_conf.h file (default value |
mbed_official | 235:685d5f11838f | 932 | * 25 MHz), user has to ensure that HSE_VALUE is same as the real |
mbed_official | 235:685d5f11838f | 933 | * frequency of the crystal used. Otherwise, this function may |
mbed_official | 235:685d5f11838f | 934 | * have wrong result. |
mbed_official | 235:685d5f11838f | 935 | * |
mbed_official | 235:685d5f11838f | 936 | * @note The result of this function could be not correct when using fractional |
mbed_official | 235:685d5f11838f | 937 | * value for HSE crystal. |
mbed_official | 235:685d5f11838f | 938 | * |
mbed_official | 235:685d5f11838f | 939 | * @note This function can be used by the user application to compute the |
mbed_official | 235:685d5f11838f | 940 | * baudrate for the communication peripherals or configure other parameters. |
mbed_official | 235:685d5f11838f | 941 | * |
mbed_official | 235:685d5f11838f | 942 | * @note Each time SYSCLK changes, this function must be called to update the |
mbed_official | 235:685d5f11838f | 943 | * right SYSCLK value. Otherwise, any configuration based on this function will be incorrect. |
mbed_official | 235:685d5f11838f | 944 | * |
mbed_official | 235:685d5f11838f | 945 | * |
mbed_official | 235:685d5f11838f | 946 | * @param None |
mbed_official | 235:685d5f11838f | 947 | * @retval SYSCLK frequency |
mbed_official | 235:685d5f11838f | 948 | */ |
mbed_official | 235:685d5f11838f | 949 | uint32_t HAL_RCC_GetSysClockFreq(void) |
mbed_official | 235:685d5f11838f | 950 | { |
mbed_official | 235:685d5f11838f | 951 | uint32_t pllm = 0, pllvco = 0, pllp = 0; |
mbed_official | 235:685d5f11838f | 952 | uint32_t sysclockfreq = 0; |
mbed_official | 235:685d5f11838f | 953 | |
mbed_official | 235:685d5f11838f | 954 | /* Get SYSCLK source -------------------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 955 | switch (RCC->CFGR & RCC_CFGR_SWS) |
mbed_official | 235:685d5f11838f | 956 | { |
mbed_official | 235:685d5f11838f | 957 | case RCC_CFGR_SWS_HSI: /* HSI used as system clock source */ |
mbed_official | 235:685d5f11838f | 958 | { |
mbed_official | 235:685d5f11838f | 959 | sysclockfreq = HSI_VALUE; |
mbed_official | 235:685d5f11838f | 960 | break; |
mbed_official | 235:685d5f11838f | 961 | } |
mbed_official | 235:685d5f11838f | 962 | case RCC_CFGR_SWS_HSE: /* HSE used as system clock source */ |
mbed_official | 235:685d5f11838f | 963 | { |
mbed_official | 235:685d5f11838f | 964 | sysclockfreq = HSE_VALUE; |
mbed_official | 235:685d5f11838f | 965 | break; |
mbed_official | 235:685d5f11838f | 966 | } |
mbed_official | 235:685d5f11838f | 967 | case RCC_CFGR_SWS_PLL: /* PLL used as system clock source */ |
mbed_official | 235:685d5f11838f | 968 | { |
mbed_official | 235:685d5f11838f | 969 | /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLLM) * PLLN |
mbed_official | 235:685d5f11838f | 970 | SYSCLK = PLL_VCO / PLLP */ |
mbed_official | 235:685d5f11838f | 971 | pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM; |
mbed_official | 235:685d5f11838f | 972 | if (__RCC_PLLSRC() != 0) |
mbed_official | 235:685d5f11838f | 973 | { |
mbed_official | 235:685d5f11838f | 974 | /* HSE used as PLL clock source */ |
mbed_official | 235:685d5f11838f | 975 | pllvco = ((HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> POSITION_VAL(RCC_PLLCFGR_PLLN))); |
mbed_official | 235:685d5f11838f | 976 | } |
mbed_official | 235:685d5f11838f | 977 | else |
mbed_official | 235:685d5f11838f | 978 | { |
mbed_official | 235:685d5f11838f | 979 | /* HSI used as PLL clock source */ |
mbed_official | 235:685d5f11838f | 980 | pllvco = ((HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> POSITION_VAL(RCC_PLLCFGR_PLLN))); |
mbed_official | 235:685d5f11838f | 981 | } |
mbed_official | 235:685d5f11838f | 982 | pllp = ((((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >> POSITION_VAL(RCC_PLLCFGR_PLLP)) + 1 ) *2); |
mbed_official | 235:685d5f11838f | 983 | |
mbed_official | 235:685d5f11838f | 984 | sysclockfreq = pllvco/pllp; |
mbed_official | 235:685d5f11838f | 985 | break; |
mbed_official | 235:685d5f11838f | 986 | } |
mbed_official | 235:685d5f11838f | 987 | default: |
mbed_official | 235:685d5f11838f | 988 | { |
mbed_official | 235:685d5f11838f | 989 | sysclockfreq = HSI_VALUE; |
mbed_official | 235:685d5f11838f | 990 | break; |
mbed_official | 235:685d5f11838f | 991 | } |
mbed_official | 235:685d5f11838f | 992 | } |
mbed_official | 235:685d5f11838f | 993 | return sysclockfreq; |
mbed_official | 235:685d5f11838f | 994 | } |
mbed_official | 235:685d5f11838f | 995 | |
mbed_official | 235:685d5f11838f | 996 | /** |
mbed_official | 235:685d5f11838f | 997 | * @brief Returns the HCLK frequency |
mbed_official | 235:685d5f11838f | 998 | * @note Each time HCLK changes, this function must be called to update the |
mbed_official | 235:685d5f11838f | 999 | * right HCLK value. Otherwise, any configuration based on this function will be incorrect. |
mbed_official | 235:685d5f11838f | 1000 | * |
mbed_official | 235:685d5f11838f | 1001 | * @note The SystemCoreClock CMSIS variable is used to store System Clock Frequency |
mbed_official | 235:685d5f11838f | 1002 | * and updated within this function |
mbed_official | 235:685d5f11838f | 1003 | * @param None |
mbed_official | 235:685d5f11838f | 1004 | * @retval HCLK frequency |
mbed_official | 235:685d5f11838f | 1005 | */ |
mbed_official | 235:685d5f11838f | 1006 | uint32_t HAL_RCC_GetHCLKFreq(void) |
mbed_official | 235:685d5f11838f | 1007 | { |
mbed_official | 235:685d5f11838f | 1008 | SystemCoreClock = HAL_RCC_GetSysClockFreq() >> APBAHBPrescTable[(RCC->CFGR & RCC_CFGR_HPRE)>> POSITION_VAL(RCC_CFGR_HPRE)]; |
mbed_official | 235:685d5f11838f | 1009 | return SystemCoreClock; |
mbed_official | 235:685d5f11838f | 1010 | } |
mbed_official | 235:685d5f11838f | 1011 | |
mbed_official | 235:685d5f11838f | 1012 | /** |
mbed_official | 235:685d5f11838f | 1013 | * @brief Returns the PCLK1 frequency |
mbed_official | 235:685d5f11838f | 1014 | * @note Each time PCLK1 changes, this function must be called to update the |
mbed_official | 235:685d5f11838f | 1015 | * right PCLK1 value. Otherwise, any configuration based on this function will be incorrect. |
mbed_official | 235:685d5f11838f | 1016 | * @param None |
mbed_official | 235:685d5f11838f | 1017 | * @retval PCLK1 frequency |
mbed_official | 235:685d5f11838f | 1018 | */ |
mbed_official | 235:685d5f11838f | 1019 | uint32_t HAL_RCC_GetPCLK1Freq(void) |
mbed_official | 235:685d5f11838f | 1020 | { |
mbed_official | 235:685d5f11838f | 1021 | /* Get HCLK source and Compute PCLK1 frequency ---------------------------*/ |
mbed_official | 235:685d5f11838f | 1022 | return (HAL_RCC_GetHCLKFreq() >> APBAHBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE1)>> POSITION_VAL(RCC_CFGR_PPRE1)]); |
mbed_official | 235:685d5f11838f | 1023 | } |
mbed_official | 235:685d5f11838f | 1024 | |
mbed_official | 235:685d5f11838f | 1025 | /** |
mbed_official | 235:685d5f11838f | 1026 | * @brief Returns the PCLK2 frequency |
mbed_official | 235:685d5f11838f | 1027 | * @note Each time PCLK2 changes, this function must be called to update the |
mbed_official | 235:685d5f11838f | 1028 | * right PCLK2 value. Otherwise, any configuration based on this function will be incorrect. |
mbed_official | 235:685d5f11838f | 1029 | * @param None |
mbed_official | 235:685d5f11838f | 1030 | * @retval PCLK2 frequency |
mbed_official | 235:685d5f11838f | 1031 | */ |
mbed_official | 235:685d5f11838f | 1032 | uint32_t HAL_RCC_GetPCLK2Freq(void) |
mbed_official | 235:685d5f11838f | 1033 | { |
mbed_official | 235:685d5f11838f | 1034 | /* Get HCLK source and Compute PCLK2 frequency ---------------------------*/ |
mbed_official | 235:685d5f11838f | 1035 | return (HAL_RCC_GetHCLKFreq()>> APBAHBPrescTable[(RCC->CFGR & RCC_CFGR_PPRE2)>> POSITION_VAL(RCC_CFGR_PPRE2)]); |
mbed_official | 235:685d5f11838f | 1036 | } |
mbed_official | 235:685d5f11838f | 1037 | |
mbed_official | 235:685d5f11838f | 1038 | /** |
mbed_official | 235:685d5f11838f | 1039 | * @brief Configures the RCC_OscInitStruct according to the internal |
mbed_official | 235:685d5f11838f | 1040 | * RCC configuration registers. |
mbed_official | 235:685d5f11838f | 1041 | * @param RCC_OscInitStruct: pointer to an RCC_OscInitTypeDef structure that |
mbed_official | 235:685d5f11838f | 1042 | * will be configured. |
mbed_official | 235:685d5f11838f | 1043 | * @retval None |
mbed_official | 235:685d5f11838f | 1044 | */ |
mbed_official | 235:685d5f11838f | 1045 | void HAL_RCC_GetOscConfig(RCC_OscInitTypeDef *RCC_OscInitStruct) |
mbed_official | 235:685d5f11838f | 1046 | { |
mbed_official | 235:685d5f11838f | 1047 | /* Set all possible values for the Oscillator type parameter ---------------*/ |
mbed_official | 235:685d5f11838f | 1048 | RCC_OscInitStruct->OscillatorType = RCC_OSCILLATORTYPE_HSE | RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSE | RCC_OSCILLATORTYPE_LSI; |
mbed_official | 235:685d5f11838f | 1049 | |
mbed_official | 235:685d5f11838f | 1050 | /* Get the HSE configuration -----------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 1051 | if((RCC->CR &RCC_CR_HSEBYP) == RCC_CR_HSEBYP) |
mbed_official | 235:685d5f11838f | 1052 | { |
mbed_official | 235:685d5f11838f | 1053 | RCC_OscInitStruct->HSEState = RCC_HSE_BYPASS; |
mbed_official | 235:685d5f11838f | 1054 | } |
mbed_official | 235:685d5f11838f | 1055 | else if((RCC->CR &RCC_CR_HSEON) == RCC_CR_HSEON) |
mbed_official | 235:685d5f11838f | 1056 | { |
mbed_official | 235:685d5f11838f | 1057 | RCC_OscInitStruct->HSEState = RCC_HSE_ON; |
mbed_official | 235:685d5f11838f | 1058 | } |
mbed_official | 235:685d5f11838f | 1059 | else |
mbed_official | 235:685d5f11838f | 1060 | { |
mbed_official | 235:685d5f11838f | 1061 | RCC_OscInitStruct->HSEState = RCC_HSE_OFF; |
mbed_official | 235:685d5f11838f | 1062 | } |
mbed_official | 235:685d5f11838f | 1063 | |
mbed_official | 235:685d5f11838f | 1064 | /* Get the HSI configuration -----------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 1065 | if((RCC->CR &RCC_CR_HSION) == RCC_CR_HSION) |
mbed_official | 235:685d5f11838f | 1066 | { |
mbed_official | 235:685d5f11838f | 1067 | RCC_OscInitStruct->HSIState = RCC_HSI_ON; |
mbed_official | 235:685d5f11838f | 1068 | } |
mbed_official | 235:685d5f11838f | 1069 | else |
mbed_official | 235:685d5f11838f | 1070 | { |
mbed_official | 235:685d5f11838f | 1071 | RCC_OscInitStruct->HSIState = RCC_HSI_OFF; |
mbed_official | 235:685d5f11838f | 1072 | } |
mbed_official | 235:685d5f11838f | 1073 | |
mbed_official | 235:685d5f11838f | 1074 | RCC_OscInitStruct->HSICalibrationValue = (uint32_t)((RCC->CR &RCC_CR_HSITRIM) >> POSITION_VAL(RCC_CR_HSITRIM)); |
mbed_official | 235:685d5f11838f | 1075 | |
mbed_official | 235:685d5f11838f | 1076 | /* Get the LSE configuration -----------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 1077 | if((RCC->BDCR &RCC_BDCR_LSEBYP) == RCC_BDCR_LSEBYP) |
mbed_official | 235:685d5f11838f | 1078 | { |
mbed_official | 235:685d5f11838f | 1079 | RCC_OscInitStruct->LSEState = RCC_LSE_BYPASS; |
mbed_official | 235:685d5f11838f | 1080 | } |
mbed_official | 235:685d5f11838f | 1081 | else if((RCC->BDCR &RCC_BDCR_LSEON) == RCC_BDCR_LSEON) |
mbed_official | 235:685d5f11838f | 1082 | { |
mbed_official | 235:685d5f11838f | 1083 | RCC_OscInitStruct->LSEState = RCC_LSE_ON; |
mbed_official | 235:685d5f11838f | 1084 | } |
mbed_official | 235:685d5f11838f | 1085 | else |
mbed_official | 235:685d5f11838f | 1086 | { |
mbed_official | 235:685d5f11838f | 1087 | RCC_OscInitStruct->LSEState = RCC_LSE_OFF; |
mbed_official | 235:685d5f11838f | 1088 | } |
mbed_official | 235:685d5f11838f | 1089 | |
mbed_official | 235:685d5f11838f | 1090 | /* Get the LSI configuration -----------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 1091 | if((RCC->CSR &RCC_CSR_LSION) == RCC_CSR_LSION) |
mbed_official | 235:685d5f11838f | 1092 | { |
mbed_official | 235:685d5f11838f | 1093 | RCC_OscInitStruct->LSIState = RCC_LSI_ON; |
mbed_official | 235:685d5f11838f | 1094 | } |
mbed_official | 235:685d5f11838f | 1095 | else |
mbed_official | 235:685d5f11838f | 1096 | { |
mbed_official | 235:685d5f11838f | 1097 | RCC_OscInitStruct->LSIState = RCC_LSI_OFF; |
mbed_official | 235:685d5f11838f | 1098 | } |
mbed_official | 235:685d5f11838f | 1099 | |
mbed_official | 235:685d5f11838f | 1100 | /* Get the PLL configuration -----------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 1101 | if((RCC->CR &RCC_CR_PLLON) == RCC_CR_PLLON) |
mbed_official | 235:685d5f11838f | 1102 | { |
mbed_official | 235:685d5f11838f | 1103 | RCC_OscInitStruct->PLL.PLLState = RCC_PLL_ON; |
mbed_official | 235:685d5f11838f | 1104 | } |
mbed_official | 235:685d5f11838f | 1105 | else |
mbed_official | 235:685d5f11838f | 1106 | { |
mbed_official | 235:685d5f11838f | 1107 | RCC_OscInitStruct->PLL.PLLState = RCC_PLL_OFF; |
mbed_official | 235:685d5f11838f | 1108 | } |
mbed_official | 235:685d5f11838f | 1109 | RCC_OscInitStruct->PLL.PLLSource = (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC); |
mbed_official | 235:685d5f11838f | 1110 | RCC_OscInitStruct->PLL.PLLM = (uint32_t)(RCC->PLLCFGR & RCC_PLLCFGR_PLLM); |
mbed_official | 235:685d5f11838f | 1111 | RCC_OscInitStruct->PLL.PLLN = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> POSITION_VAL(RCC_PLLCFGR_PLLN)); |
mbed_official | 235:685d5f11838f | 1112 | RCC_OscInitStruct->PLL.PLLP = (uint32_t)((((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) + RCC_PLLCFGR_PLLP_0) << 1) >> POSITION_VAL(RCC_PLLCFGR_PLLP)); |
mbed_official | 235:685d5f11838f | 1113 | RCC_OscInitStruct->PLL.PLLQ = (uint32_t)((RCC->PLLCFGR & RCC_PLLCFGR_PLLQ) >> POSITION_VAL(RCC_PLLCFGR_PLLQ)); |
mbed_official | 235:685d5f11838f | 1114 | } |
mbed_official | 235:685d5f11838f | 1115 | |
mbed_official | 235:685d5f11838f | 1116 | /** |
mbed_official | 235:685d5f11838f | 1117 | * @brief Configures the RCC_ClkInitStruct according to the internal |
mbed_official | 235:685d5f11838f | 1118 | * RCC configuration registers. |
mbed_official | 235:685d5f11838f | 1119 | * @param RCC_OscInitStruct: pointer to an RCC_ClkInitTypeDef structure that |
mbed_official | 235:685d5f11838f | 1120 | * will be configured. |
mbed_official | 235:685d5f11838f | 1121 | * @param pFLatency: Pointer on the Flash Latency. |
mbed_official | 235:685d5f11838f | 1122 | * @retval None |
mbed_official | 235:685d5f11838f | 1123 | */ |
mbed_official | 235:685d5f11838f | 1124 | void HAL_RCC_GetClockConfig(RCC_ClkInitTypeDef *RCC_ClkInitStruct, uint32_t *pFLatency) |
mbed_official | 235:685d5f11838f | 1125 | { |
mbed_official | 235:685d5f11838f | 1126 | /* Set all possible values for the Clock type parameter --------------------*/ |
mbed_official | 235:685d5f11838f | 1127 | RCC_ClkInitStruct->ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2; |
mbed_official | 235:685d5f11838f | 1128 | |
mbed_official | 235:685d5f11838f | 1129 | /* Get the SYSCLK configuration --------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 1130 | RCC_ClkInitStruct->SYSCLKSource = (uint32_t)(RCC->CFGR & RCC_CFGR_SW); |
mbed_official | 235:685d5f11838f | 1131 | |
mbed_official | 235:685d5f11838f | 1132 | /* Get the HCLK configuration ----------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 1133 | RCC_ClkInitStruct->AHBCLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_HPRE); |
mbed_official | 235:685d5f11838f | 1134 | |
mbed_official | 235:685d5f11838f | 1135 | /* Get the APB1 configuration ----------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 1136 | RCC_ClkInitStruct->APB1CLKDivider = (uint32_t)(RCC->CFGR & RCC_CFGR_PPRE1); |
mbed_official | 235:685d5f11838f | 1137 | |
mbed_official | 235:685d5f11838f | 1138 | /* Get the APB2 configuration ----------------------------------------------*/ |
mbed_official | 235:685d5f11838f | 1139 | RCC_ClkInitStruct->APB2CLKDivider = (uint32_t)((RCC->CFGR & RCC_CFGR_PPRE2) >> 3); |
mbed_official | 235:685d5f11838f | 1140 | |
mbed_official | 235:685d5f11838f | 1141 | /* Get the Flash Wait State (Latency) configuration ------------------------*/ |
mbed_official | 235:685d5f11838f | 1142 | *pFLatency = (uint32_t)(FLASH->ACR & FLASH_ACR_LATENCY); |
mbed_official | 235:685d5f11838f | 1143 | } |
mbed_official | 235:685d5f11838f | 1144 | |
mbed_official | 235:685d5f11838f | 1145 | /** |
mbed_official | 235:685d5f11838f | 1146 | * @brief This function handles the RCC CSS interrupt request. |
mbed_official | 235:685d5f11838f | 1147 | * @note This API should be called under the NMI_Handler(). |
mbed_official | 235:685d5f11838f | 1148 | * @param None |
mbed_official | 235:685d5f11838f | 1149 | * @retval None |
mbed_official | 235:685d5f11838f | 1150 | */ |
mbed_official | 235:685d5f11838f | 1151 | void HAL_RCC_NMI_IRQHandler(void) |
mbed_official | 235:685d5f11838f | 1152 | { |
mbed_official | 235:685d5f11838f | 1153 | /* Check RCC CSSF flag */ |
mbed_official | 235:685d5f11838f | 1154 | if(__HAL_RCC_GET_IT(RCC_IT_CSS)) |
mbed_official | 235:685d5f11838f | 1155 | { |
mbed_official | 235:685d5f11838f | 1156 | /* RCC Clock Security System interrupt user callback */ |
mbed_official | 235:685d5f11838f | 1157 | HAL_RCC_CCSCallback(); |
mbed_official | 235:685d5f11838f | 1158 | |
mbed_official | 235:685d5f11838f | 1159 | /* Clear RCC CSS pending bit */ |
mbed_official | 235:685d5f11838f | 1160 | __HAL_RCC_CLEAR_IT(RCC_IT_CSS); |
mbed_official | 235:685d5f11838f | 1161 | } |
mbed_official | 235:685d5f11838f | 1162 | } |
mbed_official | 235:685d5f11838f | 1163 | |
mbed_official | 235:685d5f11838f | 1164 | /** |
mbed_official | 235:685d5f11838f | 1165 | * @brief RCC Clock Security System interrupt callback |
mbed_official | 235:685d5f11838f | 1166 | * @param none |
mbed_official | 235:685d5f11838f | 1167 | * @retval none |
mbed_official | 235:685d5f11838f | 1168 | */ |
mbed_official | 235:685d5f11838f | 1169 | __weak void HAL_RCC_CCSCallback(void) |
mbed_official | 235:685d5f11838f | 1170 | { |
mbed_official | 235:685d5f11838f | 1171 | /* NOTE : This function Should not be modified, when the callback is needed, |
mbed_official | 235:685d5f11838f | 1172 | the HAL_RCC_CCSCallback could be implemented in the user file |
mbed_official | 235:685d5f11838f | 1173 | */ |
mbed_official | 235:685d5f11838f | 1174 | } |
mbed_official | 235:685d5f11838f | 1175 | |
mbed_official | 235:685d5f11838f | 1176 | /** |
mbed_official | 235:685d5f11838f | 1177 | * @} |
mbed_official | 235:685d5f11838f | 1178 | */ |
mbed_official | 235:685d5f11838f | 1179 | |
mbed_official | 235:685d5f11838f | 1180 | /** |
mbed_official | 235:685d5f11838f | 1181 | * @} |
mbed_official | 235:685d5f11838f | 1182 | */ |
mbed_official | 235:685d5f11838f | 1183 | |
mbed_official | 235:685d5f11838f | 1184 | #endif /* HAL_RCC_MODULE_ENABLED */ |
mbed_official | 235:685d5f11838f | 1185 | /** |
mbed_official | 235:685d5f11838f | 1186 | * @} |
mbed_official | 235:685d5f11838f | 1187 | */ |
mbed_official | 235:685d5f11838f | 1188 | |
mbed_official | 235:685d5f11838f | 1189 | /** |
mbed_official | 235:685d5f11838f | 1190 | * @} |
mbed_official | 235:685d5f11838f | 1191 | */ |
mbed_official | 235:685d5f11838f | 1192 | |
mbed_official | 235:685d5f11838f | 1193 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |