diff options
Diffstat (limited to 'Libraries/CMSIS/Device/Source/Templates')
| -rw-r--r-- | Libraries/CMSIS/Device/Source/Templates/iar/startup_stm32f072.s | 369 | ||||
| -rw-r--r-- | Libraries/CMSIS/Device/Source/Templates/system_stm32f0xx.c | 358 |
2 files changed, 0 insertions, 727 deletions
diff --git a/Libraries/CMSIS/Device/Source/Templates/iar/startup_stm32f072.s b/Libraries/CMSIS/Device/Source/Templates/iar/startup_stm32f072.s deleted file mode 100644 index 6e07b0d..0000000 --- a/Libraries/CMSIS/Device/Source/Templates/iar/startup_stm32f072.s +++ /dev/null @@ -1,369 +0,0 @@ -;******************** (C) COPYRIGHT 2014 STMicroelectronics ******************** -;* File Name : startup_stm32f072.s -;* Author : MCD Appl&ication Team -;* Version : V1.5.0 -;* Date : 24-December-2014 -;* Description : STM32F072 Devices Devices vector table for -;* EWARM toolchain. -;* This module performs: -;* - Set the initial SP -;* - Set the initial PC == iar_program_start, -;* - Set the vector table entries with the exceptions ISR -;* address. -;* After Reset the Cortex-M0 processor is in Thread mode, -;* priority is Privileged, and the Stack is set to Main. -;******************************************************************************* -; @attention -; -; Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); -; You may not use this file except in compliance with the License. -; You may obtain a copy of the License at: -; -; http://www.st.com/software_license_agreement_liberty_v2 -; -; Unless required by applicable law or agreed to in writing, software -; distributed under the License is distributed on an "AS IS" BASIS, -; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -; See the License for the specific language governing permissions and -; limitations under the License. -; -;******************************************************************************* -; -; -; The modules in this file are included in the libraries, and may be replaced -; by any user-defined modules that define the PUBLIC symbol _program_start or -; a user defined start symbol. -; To override the cstartup defined in the library, simply add your modified -; version to the workbench project. -; -; The vector table is normally located at address 0. -; When debugging in RAM, it can be located in RAM, aligned to at least 2^6. -; The name "__vector_table" has special meaning for C-SPY: -; it is where the SP start value is found, and the NVIC vector -; table register (VTOR) is initialized to this address if != 0. -; -; Cortex-M version -; - - MODULE ?cstartup - - ;; Forward declaration of sections. - SECTION CSTACK:DATA:NOROOT(3) - - SECTION .intvec:CODE:NOROOT(2) - - EXTERN __iar_program_start - EXTERN SystemInit - PUBLIC __vector_table - - DATA -__vector_table - DCD sfe(CSTACK) - DCD Reset_Handler ; Reset Handler - - DCD NMI_Handler ; NMI Handler - DCD HardFault_Handler ; Hard Fault Handler - DCD 0 ; Reserved - DCD 0 ; Reserved - DCD 0 ; Reserved - DCD 0 ; Reserved - DCD 0 ; Reserved - DCD 0 ; Reserved - DCD 0 ; Reserved - DCD SVC_Handler ; SVCall Handler - DCD 0 ; Reserved - DCD 0 ; Reserved - DCD PendSV_Handler ; PendSV Handler - DCD SysTick_Handler ; SysTick Handler - - ; External Interrupts - DCD WWDG_IRQHandler ; Window Watchdog - DCD PVD_VDDIO2_IRQHandler ; PVD and VDDIO2 through EXTI Line detect - DCD RTC_IRQHandler ; RTC through EXTI Line - DCD FLASH_IRQHandler ; FLASH - DCD RCC_CRS_IRQHandler ; RCC and CRS - DCD EXTI0_1_IRQHandler ; EXTI Line 0 and 1 - DCD EXTI2_3_IRQHandler ; EXTI Line 2 and 3 - DCD EXTI4_15_IRQHandler ; EXTI Line 4 to 15 - DCD TSC_IRQHandler ; TS - DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1 - DCD DMA1_Channel2_3_IRQHandler ; DMA1 Channel 2 and Channel 3 - DCD DMA1_Channel4_5_6_7_IRQHandler ; DMA1 Channel 4, Channel 5, Channel 6 and Channel 7 - DCD ADC1_COMP_IRQHandler ; ADC1, COMP1 and COMP2 - DCD TIM1_BRK_UP_TRG_COM_IRQHandler ; TIM1 Break, Update, Trigger and Commutation - DCD TIM1_CC_IRQHandler ; TIM1 Capture Compare - DCD TIM2_IRQHandler ; TIM2 - DCD TIM3_IRQHandler ; TIM3 - DCD TIM6_DAC_IRQHandler ; TIM6 and DAC - DCD TIM7_IRQHandler ; TIM7 - DCD TIM14_IRQHandler ; TIM14 - DCD TIM15_IRQHandler ; TIM15 - DCD TIM16_IRQHandler ; TIM16 - DCD TIM17_IRQHandler ; TIM17 - DCD I2C1_IRQHandler ; I2C1 - DCD I2C2_IRQHandler ; I2C2 - DCD SPI1_IRQHandler ; SPI1 - DCD SPI2_IRQHandler ; SPI2 - DCD USART1_IRQHandler ; USART1 - DCD USART2_IRQHandler ; USART2 - DCD USART3_4_IRQHandler ; USART3 and USART4 - DCD CEC_CAN_IRQHandler ; CEC and CAN - DCD USB_IRQHandler ; USB - -;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; -;; -;; Default interrupt handlers. -;; - THUMB - - PUBWEAK Reset_Handler - SECTION .text:CODE:NOROOT:REORDER(2) -Reset_Handler - - LDR R0, =sfe(CSTACK) ; set stack pointer - MSR MSP, R0 - -;;Check if boot space corresponds to test memory - LDR R0,=0x00000004 - LDR R1, [R0] - LSRS R1, R1, #24 - LDR R2,=0x1F - CMP R1, R2 - - BNE ApplicationStart -;; SYSCFG clock enable - LDR R0,=0x40021018 - LDR R1,=0x00000001 - STR R1, [R0] - -;; Set CFGR1 register with flash memory remap at address 0 - - LDR R0,=0x40010000 - LDR R1,=0x00000000 - STR R1, [R0] -ApplicationStart - LDR R0, =SystemInit - BLX R0 - LDR R0, =__iar_program_start - BX R0 - - PUBWEAK NMI_Handler - SECTION .text:CODE:NOROOT:REORDER(1) -NMI_Handler - B NMI_Handler - - - PUBWEAK HardFault_Handler - SECTION .text:CODE:NOROOT:REORDER(1) -HardFault_Handler - B HardFault_Handler - - - PUBWEAK SVC_Handler - SECTION .text:CODE:NOROOT:REORDER(1) -SVC_Handler - B SVC_Handler - - - PUBWEAK PendSV_Handler - SECTION .text:CODE:NOROOT:REORDER(1) -PendSV_Handler - B PendSV_Handler - - - PUBWEAK SysTick_Handler - SECTION .text:CODE:NOROOT:REORDER(1) -SysTick_Handler - B SysTick_Handler - - - PUBWEAK WWDG_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -WWDG_IRQHandler - B WWDG_IRQHandler - - - PUBWEAK PVD_VDDIO2_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -PVD_VDDIO2_IRQHandler - B PVD_VDDIO2_IRQHandler - - - PUBWEAK RTC_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -RTC_IRQHandler - B RTC_IRQHandler - - - PUBWEAK FLASH_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -FLASH_IRQHandler - B FLASH_IRQHandler - - - PUBWEAK RCC_CRS_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -RCC_CRS_IRQHandler - B RCC_CRS_IRQHandler - - - PUBWEAK EXTI0_1_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -EXTI0_1_IRQHandler - B EXTI0_1_IRQHandler - - - PUBWEAK EXTI2_3_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -EXTI2_3_IRQHandler - B EXTI2_3_IRQHandler - - - PUBWEAK EXTI4_15_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -EXTI4_15_IRQHandler - B EXTI4_15_IRQHandler - - - PUBWEAK TSC_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TSC_IRQHandler - B TSC_IRQHandler - - - PUBWEAK DMA1_Channel1_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -DMA1_Channel1_IRQHandler - B DMA1_Channel1_IRQHandler - - - PUBWEAK DMA1_Channel2_3_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -DMA1_Channel2_3_IRQHandler - B DMA1_Channel2_3_IRQHandler - - - PUBWEAK DMA1_Channel4_5_6_7_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -DMA1_Channel4_5_6_7_IRQHandler - B DMA1_Channel4_5_6_7_IRQHandler - - - PUBWEAK ADC1_COMP_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -ADC1_COMP_IRQHandler - B ADC1_COMP_IRQHandler - - - PUBWEAK TIM1_BRK_UP_TRG_COM_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM1_BRK_UP_TRG_COM_IRQHandler - B TIM1_BRK_UP_TRG_COM_IRQHandler - - - PUBWEAK TIM1_CC_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM1_CC_IRQHandler - B TIM1_CC_IRQHandler - - - PUBWEAK TIM2_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM2_IRQHandler - B TIM2_IRQHandler - - - PUBWEAK TIM3_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM3_IRQHandler - B TIM3_IRQHandler - - - PUBWEAK TIM6_DAC_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM6_DAC_IRQHandler - B TIM6_DAC_IRQHandler - - PUBWEAK TIM7_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM7_IRQHandler - B TIM7_IRQHandler - - PUBWEAK TIM14_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM14_IRQHandler - B TIM14_IRQHandler - - - PUBWEAK TIM15_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM15_IRQHandler - B TIM15_IRQHandler - - - PUBWEAK TIM16_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM16_IRQHandler - B TIM16_IRQHandler - - - PUBWEAK TIM17_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -TIM17_IRQHandler - B TIM17_IRQHandler - - - PUBWEAK I2C1_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -I2C1_IRQHandler - B I2C1_IRQHandler - - - PUBWEAK I2C2_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -I2C2_IRQHandler - B I2C2_IRQHandler - - - PUBWEAK SPI1_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -SPI1_IRQHandler - B SPI1_IRQHandler - - - PUBWEAK SPI2_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -SPI2_IRQHandler - B SPI2_IRQHandler - - - PUBWEAK USART1_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -USART1_IRQHandler - B USART1_IRQHandler - - - PUBWEAK USART2_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -USART2_IRQHandler - B USART2_IRQHandler - - - PUBWEAK USART3_4_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -USART3_4_IRQHandler - B USART3_4_IRQHandler - - - PUBWEAK CEC_CAN_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -CEC_CAN_IRQHandler - B CEC_CAN_IRQHandler - - PUBWEAK USB_IRQHandler - SECTION .text:CODE:NOROOT:REORDER(1) -USB_IRQHandler - B USB_IRQHandler - - END -;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE***** diff --git a/Libraries/CMSIS/Device/Source/Templates/system_stm32f0xx.c b/Libraries/CMSIS/Device/Source/Templates/system_stm32f0xx.c deleted file mode 100644 index e05ebe2..0000000 --- a/Libraries/CMSIS/Device/Source/Templates/system_stm32f0xx.c +++ /dev/null @@ -1,358 +0,0 @@ -/** - ****************************************************************************** - * @file system_stm32f0xx.c - * @author MCD Application Team - * @version V1.3.1 - * @date 17-January-2014 - * @brief CMSIS Cortex-M0 Device Peripheral Access Layer System Source File. - * This file contains the system clock configuration for STM32F0xx devices, - * and is generated by the clock configuration tool - * STM32F0xx_Clock_Configuration_V1.0.0.xls - * - * 1. This file provides two functions and one global variable to be called from - * user application: - * - SystemInit(): Setups the system clock (System clock source, PLL Multiplier - * and Divider factors, AHB/APBx prescalers and Flash settings), - * depending on the configuration made in the clock xls tool. - * This function is called at startup just after reset and - * before branch to main program. This call is made inside - * the "startup_stm32f0xx.s" file. - * - * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used - * by the user application to setup the SysTick - * timer or configure other parameters. - * - * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must - * be called whenever the core clock is changed - * during program execution. - * - * 2. After each device reset the HSI (8 MHz Range) is used as system clock source. - * Then SystemInit() function is called, in "startup_stm32f0xx.s" file, to - * configure the system clock before to branch to main program. - * - * 3. If the system clock source selected by user fails to startup, the SystemInit() - * function will do nothing and HSI still used as system clock source. User can - * add some code to deal with this issue inside the SetSysClock() function. - * - * 4. The default value of HSE crystal is set to 8MHz, refer to "HSE_VALUE" define - * in "stm32f0xx.h" file. When HSE is used as system clock source, directly or - * through PLL, and you are using different crystal you have to adapt the HSE - * value to your own configuration. - * - * 5. This file configures the system clock as follows: - *============================================================================= - * System Clock Configuration - *============================================================================= - * System Clock source | PLL(HSE) - *----------------------------------------------------------------------------- - * SYSCLK | 48000000 Hz - *----------------------------------------------------------------------------- - * HCLK | 48000000 Hz - *----------------------------------------------------------------------------- - * AHB Prescaler | 1 - *----------------------------------------------------------------------------- - * APB1 Prescaler | 1 - *----------------------------------------------------------------------------- - * APB2 Prescaler | 1 - *----------------------------------------------------------------------------- - * HSE Frequency | 8000000 Hz - *----------------------------------------------------------------------------- - * PLL MUL | 6 - *----------------------------------------------------------------------------- - * VDD | 3.3 V - *----------------------------------------------------------------------------- - * Flash Latency | 1 WS - *----------------------------------------------------------------------------- - *============================================================================= - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2> - * - * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); - * You may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.st.com/software_license_agreement_liberty_v2 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - ****************************************************************************** - */ - -/** @addtogroup CMSIS - * @{ - */ - -/** @addtogroup stm32f0xx_system - * @{ - */ - -/** @addtogroup STM32F0xx_System_Private_Includes - * @{ - */ - -#include "stm32f0xx.h" - -/** - * @} - */ - -/** @addtogroup STM32F0xx_System_Private_TypesDefinitions - * @{ - */ - -/** - * @} - */ - -/** @addtogroup STM32F0xx_System_Private_Defines - * @{ - */ -/** - * @} - */ - -/** @addtogroup STM32F0xx_System_Private_Macros - * @{ - */ - -/** - * @} - */ - -/** @addtogroup STM32F0xx_System_Private_Variables - * @{ - */ -uint32_t SystemCoreClock = 48000000; -__I uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; - -/** - * @} - */ - -/** @addtogroup STM32F0xx_System_Private_FunctionPrototypes - * @{ - */ - -static void SetSysClock(void); - -/** - * @} - */ - -/** @addtogroup STM32F0xx_System_Private_Functions - * @{ - */ - -/** - * @brief Setup the microcontroller system. - * Initialize the Embedded Flash Interface, the PLL and update the - * SystemCoreClock variable. - * @param None - * @retval None - */ -void SystemInit (void) -{ - /* Set HSION bit */ - RCC->CR |= (uint32_t)0x00000001; - -#if defined (STM32F031) || defined (STM32F072) || defined (STM32F042) - /* Reset SW[1:0], HPRE[3:0], PPRE[2:0], ADCPRE and MCOSEL[2:0] bits */ - RCC->CFGR &= (uint32_t)0xF8FFB80C; -#else - /* Reset SW[1:0], HPRE[3:0], PPRE[2:0], ADCPRE, MCOSEL[2:0], MCOPRE[2:0] and PLLNODIV bits */ - RCC->CFGR &= (uint32_t)0x08FFB80C; -#endif /* STM32F031*/ - - /* Reset HSEON, CSSON and PLLON bits */ - RCC->CR &= (uint32_t)0xFEF6FFFF; - - /* Reset HSEBYP bit */ - RCC->CR &= (uint32_t)0xFFFBFFFF; - - /* Reset PLLSRC, PLLXTPRE and PLLMUL[3:0] bits */ - RCC->CFGR &= (uint32_t)0xFFC0FFFF; - - /* Reset PREDIV1[3:0] bits */ - RCC->CFGR2 &= (uint32_t)0xFFFFFFF0; - - /* Reset USARTSW[1:0], I2CSW, CECSW and ADCSW bits */ - RCC->CFGR3 &= (uint32_t)0xFFFFFEAC; - - /* Reset HSI14 bit */ - RCC->CR2 &= (uint32_t)0xFFFFFFFE; - - /* Disable all interrupts */ - RCC->CIR = 0x00000000; - - /* Configure the System clock frequency, AHB/APBx prescalers and Flash settings */ - SetSysClock(); -} - -/** - * @brief Update SystemCoreClock according to Clock Register Values - * The SystemCoreClock variable contains the core clock (HCLK), it can - * be used by the user application to setup the SysTick timer or configure - * other parameters. - * - * @note Each time the core clock (HCLK) changes, this function must be called - * to update SystemCoreClock variable value. Otherwise, any configuration - * based on this variable will be incorrect. - * - * @note - The system frequency computed by this function is not the real - * frequency in the chip. It is calculated based on the predefined - * constant and the selected clock source: - * - * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) - * - * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) - * - * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) - * or HSI_VALUE(*) multiplied/divided by the PLL factors. - * - * (*) HSI_VALUE is a constant defined in stm32f0xx.h file (default value - * 8 MHz) but the real value may vary depending on the variations - * in voltage and temperature. - * - * (**) HSE_VALUE is a constant defined in stm32f0xx.h file (default value - * 8 MHz), user has to ensure that HSE_VALUE is same as the real - * frequency of the crystal used. Otherwise, this function may - * have wrong result. - * - * - The result of this function could be not correct when using fractional - * value for HSE crystal. - * @param None - * @retval None - */ -void SystemCoreClockUpdate (void) -{ - uint32_t tmp = 0, pllmull = 0, pllsource = 0, prediv1factor = 0; - - /* Get SYSCLK source -------------------------------------------------------*/ - tmp = RCC->CFGR & RCC_CFGR_SWS; - - switch (tmp) - { - case 0x00: /* HSI used as system clock */ - SystemCoreClock = HSI_VALUE; - break; - case 0x04: /* HSE used as system clock */ - SystemCoreClock = HSE_VALUE; - break; - case 0x08: /* PLL used as system clock */ - /* Get PLL clock source and multiplication factor ----------------------*/ - pllmull = RCC->CFGR & RCC_CFGR_PLLMULL; - pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; - pllmull = ( pllmull >> 18) + 2; - - if (pllsource == 0x00) - { - /* HSI oscillator clock divided by 2 selected as PLL clock entry */ - SystemCoreClock = (HSI_VALUE >> 1) * pllmull; - } - else - { - prediv1factor = (RCC->CFGR2 & RCC_CFGR2_PREDIV1) + 1; - /* HSE oscillator clock selected as PREDIV1 clock entry */ - SystemCoreClock = (HSE_VALUE / prediv1factor) * pllmull; - } - break; - default: /* HSI used as system clock */ - SystemCoreClock = HSI_VALUE; - break; - } - /* Compute HCLK clock frequency ----------------*/ - /* Get HCLK prescaler */ - tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; - /* HCLK clock frequency */ - SystemCoreClock >>= tmp; -} - -/** - * @brief Configures the System clock frequency, AHB/APBx prescalers and Flash - * settings. - * @note This function should be called only once the RCC clock configuration - * is reset to the default reset state (done in SystemInit() function). - * @param None - * @retval None - */ -static void SetSysClock(void) -{ - __IO uint32_t StartUpCounter = 0, HSEStatus = 0; - - /* SYSCLK, HCLK, PCLK configuration ----------------------------------------*/ - /* Enable HSE */ - RCC->CR |= ((uint32_t)RCC_CR_HSEON); - - /* Wait till HSE is ready and if Time out is reached exit */ - do - { - HSEStatus = RCC->CR & RCC_CR_HSERDY; - StartUpCounter++; - } while((HSEStatus == 0) && (StartUpCounter != HSE_STARTUP_TIMEOUT)); - - if ((RCC->CR & RCC_CR_HSERDY) != RESET) - { - HSEStatus = (uint32_t)0x01; - } - else - { - HSEStatus = (uint32_t)0x00; - } - - if (HSEStatus == (uint32_t)0x01) - { - /* Enable Prefetch Buffer and set Flash Latency */ - FLASH->ACR = FLASH_ACR_PRFTBE | FLASH_ACR_LATENCY; - - /* HCLK = SYSCLK */ - RCC->CFGR |= (uint32_t)RCC_CFGR_HPRE_DIV1; - - /* PCLK = HCLK */ - RCC->CFGR |= (uint32_t)RCC_CFGR_PPRE_DIV1; - - /* PLL configuration = HSE * 6 = 48 MHz */ - RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_PLLSRC | RCC_CFGR_PLLXTPRE | RCC_CFGR_PLLMULL)); - RCC->CFGR |= (uint32_t)(RCC_CFGR_PLLSRC_PREDIV1 | RCC_CFGR_PLLXTPRE_PREDIV1 | RCC_CFGR_PLLMULL6); - - /* Enable PLL */ - RCC->CR |= RCC_CR_PLLON; - - /* Wait till PLL is ready */ - while((RCC->CR & RCC_CR_PLLRDY) == 0) - { - } - - /* Select PLL as system clock source */ - RCC->CFGR &= (uint32_t)((uint32_t)~(RCC_CFGR_SW)); - RCC->CFGR |= (uint32_t)RCC_CFGR_SW_PLL; - - /* Wait till PLL is used as system clock source */ - while ((RCC->CFGR & (uint32_t)RCC_CFGR_SWS) != (uint32_t)RCC_CFGR_SWS_PLL) - { - } - } - else - { /* If HSE fails to start-up, the application will have wrong clock - configuration. User can add here some code to deal with this error */ - } -} - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |