ARM GAS /tmp/ccIBrQzE.s page 1 1 .cpu cortex-m4 2 .arch armv7e-m 3 .fpu fpv4-sp-d16 4 .eabi_attribute 27, 1 5 .eabi_attribute 28, 1 6 .eabi_attribute 20, 1 7 .eabi_attribute 21, 1 8 .eabi_attribute 23, 3 9 .eabi_attribute 24, 1 10 .eabi_attribute 25, 1 11 .eabi_attribute 26, 1 12 .eabi_attribute 30, 1 13 .eabi_attribute 34, 1 14 .eabi_attribute 18, 4 15 .file "system_stm32f3xx.c" 16 .text 17 .Ltext0: 18 .cfi_sections .debug_frame 19 .file 1 "Core/Src/system_stm32f3xx.c" 20 .section .text.SystemInit,"ax",%progbits 21 .align 1 22 .global SystemInit 23 .syntax unified 24 .thumb 25 .thumb_func 27 SystemInit: 28 .LFB130: 1:Core/Src/system_stm32f3xx.c **** /** 2:Core/Src/system_stm32f3xx.c **** ****************************************************************************** 3:Core/Src/system_stm32f3xx.c **** * @file system_stm32f3xx.c 4:Core/Src/system_stm32f3xx.c **** * @author MCD Application Team 5:Core/Src/system_stm32f3xx.c **** * @brief CMSIS Cortex-M4 Device Peripheral Access Layer System Source File. 6:Core/Src/system_stm32f3xx.c **** * 7:Core/Src/system_stm32f3xx.c **** * 1. This file provides two functions and one global variable to be called from 8:Core/Src/system_stm32f3xx.c **** * user application: 9:Core/Src/system_stm32f3xx.c **** * - SystemInit(): This function is called at startup just after reset and 10:Core/Src/system_stm32f3xx.c **** * before branch to main program. This call is made inside 11:Core/Src/system_stm32f3xx.c **** * the "startup_stm32f3xx.s" file. 12:Core/Src/system_stm32f3xx.c **** * 13:Core/Src/system_stm32f3xx.c **** * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used 14:Core/Src/system_stm32f3xx.c **** * by the user application to setup the SysTick 15:Core/Src/system_stm32f3xx.c **** * timer or configure other parameters. 16:Core/Src/system_stm32f3xx.c **** * 17:Core/Src/system_stm32f3xx.c **** * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must 18:Core/Src/system_stm32f3xx.c **** * be called whenever the core clock is changed 19:Core/Src/system_stm32f3xx.c **** * during program execution. 20:Core/Src/system_stm32f3xx.c **** * 21:Core/Src/system_stm32f3xx.c **** * 2. After each device reset the HSI (8 MHz) is used as system clock source. 22:Core/Src/system_stm32f3xx.c **** * Then SystemInit() function is called, in "startup_stm32f3xx.s" file, to 23:Core/Src/system_stm32f3xx.c **** * configure the system clock before to branch to main program. 24:Core/Src/system_stm32f3xx.c **** * 25:Core/Src/system_stm32f3xx.c **** * 3. This file configures the system clock as follows: 26:Core/Src/system_stm32f3xx.c **** *============================================================================= 27:Core/Src/system_stm32f3xx.c **** * Supported STM32F3xx device 28:Core/Src/system_stm32f3xx.c **** *----------------------------------------------------------------------------- 29:Core/Src/system_stm32f3xx.c **** * System Clock source | HSI 30:Core/Src/system_stm32f3xx.c **** *----------------------------------------------------------------------------- ARM GAS /tmp/ccIBrQzE.s page 2 31:Core/Src/system_stm32f3xx.c **** * SYSCLK(Hz) | 8000000 32:Core/Src/system_stm32f3xx.c **** *----------------------------------------------------------------------------- 33:Core/Src/system_stm32f3xx.c **** * HCLK(Hz) | 8000000 34:Core/Src/system_stm32f3xx.c **** *----------------------------------------------------------------------------- 35:Core/Src/system_stm32f3xx.c **** * AHB Prescaler | 1 36:Core/Src/system_stm32f3xx.c **** *----------------------------------------------------------------------------- 37:Core/Src/system_stm32f3xx.c **** * APB2 Prescaler | 1 38:Core/Src/system_stm32f3xx.c **** *----------------------------------------------------------------------------- 39:Core/Src/system_stm32f3xx.c **** * APB1 Prescaler | 1 40:Core/Src/system_stm32f3xx.c **** *----------------------------------------------------------------------------- 41:Core/Src/system_stm32f3xx.c **** * USB Clock | DISABLE 42:Core/Src/system_stm32f3xx.c **** *----------------------------------------------------------------------------- 43:Core/Src/system_stm32f3xx.c **** *============================================================================= 44:Core/Src/system_stm32f3xx.c **** ****************************************************************************** 45:Core/Src/system_stm32f3xx.c **** * @attention 46:Core/Src/system_stm32f3xx.c **** * 47:Core/Src/system_stm32f3xx.c **** *

© Copyright (c) 2016 STMicroelectronics. 48:Core/Src/system_stm32f3xx.c **** * All rights reserved.

49:Core/Src/system_stm32f3xx.c **** * 50:Core/Src/system_stm32f3xx.c **** * This software component is licensed by ST under BSD 3-Clause license, 51:Core/Src/system_stm32f3xx.c **** * the "License"; You may not use this file except in compliance with the 52:Core/Src/system_stm32f3xx.c **** * License. You may obtain a copy of the License at: 53:Core/Src/system_stm32f3xx.c **** * opensource.org/licenses/BSD-3-Clause 54:Core/Src/system_stm32f3xx.c **** * 55:Core/Src/system_stm32f3xx.c **** ****************************************************************************** 56:Core/Src/system_stm32f3xx.c **** */ 57:Core/Src/system_stm32f3xx.c **** 58:Core/Src/system_stm32f3xx.c **** /** @addtogroup CMSIS 59:Core/Src/system_stm32f3xx.c **** * @{ 60:Core/Src/system_stm32f3xx.c **** */ 61:Core/Src/system_stm32f3xx.c **** 62:Core/Src/system_stm32f3xx.c **** /** @addtogroup stm32f3xx_system 63:Core/Src/system_stm32f3xx.c **** * @{ 64:Core/Src/system_stm32f3xx.c **** */ 65:Core/Src/system_stm32f3xx.c **** 66:Core/Src/system_stm32f3xx.c **** /** @addtogroup STM32F3xx_System_Private_Includes 67:Core/Src/system_stm32f3xx.c **** * @{ 68:Core/Src/system_stm32f3xx.c **** */ 69:Core/Src/system_stm32f3xx.c **** 70:Core/Src/system_stm32f3xx.c **** #include "stm32f3xx.h" 71:Core/Src/system_stm32f3xx.c **** 72:Core/Src/system_stm32f3xx.c **** /** 73:Core/Src/system_stm32f3xx.c **** * @} 74:Core/Src/system_stm32f3xx.c **** */ 75:Core/Src/system_stm32f3xx.c **** 76:Core/Src/system_stm32f3xx.c **** /** @addtogroup STM32F3xx_System_Private_TypesDefinitions 77:Core/Src/system_stm32f3xx.c **** * @{ 78:Core/Src/system_stm32f3xx.c **** */ 79:Core/Src/system_stm32f3xx.c **** 80:Core/Src/system_stm32f3xx.c **** /** 81:Core/Src/system_stm32f3xx.c **** * @} 82:Core/Src/system_stm32f3xx.c **** */ 83:Core/Src/system_stm32f3xx.c **** 84:Core/Src/system_stm32f3xx.c **** /** @addtogroup STM32F3xx_System_Private_Defines 85:Core/Src/system_stm32f3xx.c **** * @{ 86:Core/Src/system_stm32f3xx.c **** */ 87:Core/Src/system_stm32f3xx.c **** #if !defined (HSE_VALUE) ARM GAS /tmp/ccIBrQzE.s page 3 88:Core/Src/system_stm32f3xx.c **** #define HSE_VALUE ((uint32_t)8000000) /*!< Default value of the External oscillator in Hz. 89:Core/Src/system_stm32f3xx.c **** This value can be provided and adapted by the user 90:Core/Src/system_stm32f3xx.c **** #endif /* HSE_VALUE */ 91:Core/Src/system_stm32f3xx.c **** 92:Core/Src/system_stm32f3xx.c **** #if !defined (HSI_VALUE) 93:Core/Src/system_stm32f3xx.c **** #define HSI_VALUE ((uint32_t)8000000) /*!< Default value of the Internal oscillator in Hz. 94:Core/Src/system_stm32f3xx.c **** This value can be provided and adapted by the user 95:Core/Src/system_stm32f3xx.c **** #endif /* HSI_VALUE */ 96:Core/Src/system_stm32f3xx.c **** 97:Core/Src/system_stm32f3xx.c **** /* Note: Following vector table addresses must be defined in line with linker 98:Core/Src/system_stm32f3xx.c **** configuration. */ 99:Core/Src/system_stm32f3xx.c **** /*!< Uncomment the following line if you need to relocate the vector table 100:Core/Src/system_stm32f3xx.c **** anywhere in Flash or Sram, else the vector table is kept at the automatic 101:Core/Src/system_stm32f3xx.c **** remap of boot address selected */ 102:Core/Src/system_stm32f3xx.c **** /* #define USER_VECT_TAB_ADDRESS */ 103:Core/Src/system_stm32f3xx.c **** 104:Core/Src/system_stm32f3xx.c **** #if defined(USER_VECT_TAB_ADDRESS) 105:Core/Src/system_stm32f3xx.c **** /*!< Uncomment the following line if you need to relocate your vector Table 106:Core/Src/system_stm32f3xx.c **** in Sram else user remap will be done in Flash. */ 107:Core/Src/system_stm32f3xx.c **** /* #define VECT_TAB_SRAM */ 108:Core/Src/system_stm32f3xx.c **** #if defined(VECT_TAB_SRAM) 109:Core/Src/system_stm32f3xx.c **** #define VECT_TAB_BASE_ADDRESS SRAM_BASE /*!< Vector Table base address field. 110:Core/Src/system_stm32f3xx.c **** This value must be a multiple of 0x200. */ 111:Core/Src/system_stm32f3xx.c **** #define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field. 112:Core/Src/system_stm32f3xx.c **** This value must be a multiple of 0x200. */ 113:Core/Src/system_stm32f3xx.c **** #else 114:Core/Src/system_stm32f3xx.c **** #define VECT_TAB_BASE_ADDRESS FLASH_BASE /*!< Vector Table base address field. 115:Core/Src/system_stm32f3xx.c **** This value must be a multiple of 0x200. */ 116:Core/Src/system_stm32f3xx.c **** #define VECT_TAB_OFFSET 0x00000000U /*!< Vector Table base offset field. 117:Core/Src/system_stm32f3xx.c **** This value must be a multiple of 0x200. */ 118:Core/Src/system_stm32f3xx.c **** #endif /* VECT_TAB_SRAM */ 119:Core/Src/system_stm32f3xx.c **** #endif /* USER_VECT_TAB_ADDRESS */ 120:Core/Src/system_stm32f3xx.c **** 121:Core/Src/system_stm32f3xx.c **** /******************************************************************************/ 122:Core/Src/system_stm32f3xx.c **** /** 123:Core/Src/system_stm32f3xx.c **** * @} 124:Core/Src/system_stm32f3xx.c **** */ 125:Core/Src/system_stm32f3xx.c **** 126:Core/Src/system_stm32f3xx.c **** /** @addtogroup STM32F3xx_System_Private_Macros 127:Core/Src/system_stm32f3xx.c **** * @{ 128:Core/Src/system_stm32f3xx.c **** */ 129:Core/Src/system_stm32f3xx.c **** 130:Core/Src/system_stm32f3xx.c **** /** 131:Core/Src/system_stm32f3xx.c **** * @} 132:Core/Src/system_stm32f3xx.c **** */ 133:Core/Src/system_stm32f3xx.c **** 134:Core/Src/system_stm32f3xx.c **** /** @addtogroup STM32F3xx_System_Private_Variables 135:Core/Src/system_stm32f3xx.c **** * @{ 136:Core/Src/system_stm32f3xx.c **** */ 137:Core/Src/system_stm32f3xx.c **** /* This variable is updated in three ways: 138:Core/Src/system_stm32f3xx.c **** 1) by calling CMSIS function SystemCoreClockUpdate() 139:Core/Src/system_stm32f3xx.c **** 2) by calling HAL API function HAL_RCC_GetHCLKFreq() 140:Core/Src/system_stm32f3xx.c **** 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency 141:Core/Src/system_stm32f3xx.c **** Note: If you use this function to configure the system clock there is no need to 142:Core/Src/system_stm32f3xx.c **** call the 2 first functions listed above, since SystemCoreClock variable is 143:Core/Src/system_stm32f3xx.c **** updated automatically. 144:Core/Src/system_stm32f3xx.c **** */ ARM GAS /tmp/ccIBrQzE.s page 4 145:Core/Src/system_stm32f3xx.c **** uint32_t SystemCoreClock = 8000000; 146:Core/Src/system_stm32f3xx.c **** 147:Core/Src/system_stm32f3xx.c **** const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9}; 148:Core/Src/system_stm32f3xx.c **** const uint8_t APBPrescTable[8] = {0, 0, 0, 0, 1, 2, 3, 4}; 149:Core/Src/system_stm32f3xx.c **** 150:Core/Src/system_stm32f3xx.c **** /** 151:Core/Src/system_stm32f3xx.c **** * @} 152:Core/Src/system_stm32f3xx.c **** */ 153:Core/Src/system_stm32f3xx.c **** 154:Core/Src/system_stm32f3xx.c **** /** @addtogroup STM32F3xx_System_Private_FunctionPrototypes 155:Core/Src/system_stm32f3xx.c **** * @{ 156:Core/Src/system_stm32f3xx.c **** */ 157:Core/Src/system_stm32f3xx.c **** 158:Core/Src/system_stm32f3xx.c **** /** 159:Core/Src/system_stm32f3xx.c **** * @} 160:Core/Src/system_stm32f3xx.c **** */ 161:Core/Src/system_stm32f3xx.c **** 162:Core/Src/system_stm32f3xx.c **** /** @addtogroup STM32F3xx_System_Private_Functions 163:Core/Src/system_stm32f3xx.c **** * @{ 164:Core/Src/system_stm32f3xx.c **** */ 165:Core/Src/system_stm32f3xx.c **** 166:Core/Src/system_stm32f3xx.c **** /** 167:Core/Src/system_stm32f3xx.c **** * @brief Setup the microcontroller system 168:Core/Src/system_stm32f3xx.c **** * @param None 169:Core/Src/system_stm32f3xx.c **** * @retval None 170:Core/Src/system_stm32f3xx.c **** */ 171:Core/Src/system_stm32f3xx.c **** void SystemInit(void) 172:Core/Src/system_stm32f3xx.c **** { 29 .loc 1 172 1 view -0 30 .cfi_startproc 31 @ args = 0, pretend = 0, frame = 0 32 @ frame_needed = 0, uses_anonymous_args = 0 33 @ link register save eliminated. 173:Core/Src/system_stm32f3xx.c **** /* FPU settings --------------------------------------------------------------*/ 174:Core/Src/system_stm32f3xx.c **** #if (__FPU_PRESENT == 1) && (__FPU_USED == 1) 175:Core/Src/system_stm32f3xx.c **** SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2)); /* set CP10 and CP11 Full Access */ 34 .loc 1 175 3 view .LVU1 35 .loc 1 175 6 is_stmt 0 view .LVU2 36 0000 034A ldr r2, .L2 37 0002 D2F88830 ldr r3, [r2, #136] 38 .loc 1 175 14 view .LVU3 39 0006 43F47003 orr r3, r3, #15728640 40 000a C2F88830 str r3, [r2, #136] 176:Core/Src/system_stm32f3xx.c **** #endif 177:Core/Src/system_stm32f3xx.c **** 178:Core/Src/system_stm32f3xx.c **** /* Configure the Vector Table location -------------------------------------*/ 179:Core/Src/system_stm32f3xx.c **** #if defined(USER_VECT_TAB_ADDRESS) 180:Core/Src/system_stm32f3xx.c **** SCB->VTOR = VECT_TAB_BASE_ADDRESS | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM 181:Core/Src/system_stm32f3xx.c **** #endif /* USER_VECT_TAB_ADDRESS */ 182:Core/Src/system_stm32f3xx.c **** } 41 .loc 1 182 1 view .LVU4 42 000e 7047 bx lr 43 .L3: 44 .align 2 45 .L2: 46 0010 00ED00E0 .word -536810240 47 .cfi_endproc ARM GAS /tmp/ccIBrQzE.s page 5 48 .LFE130: 50 .section .text.SystemCoreClockUpdate,"ax",%progbits 51 .align 1 52 .global SystemCoreClockUpdate 53 .syntax unified 54 .thumb 55 .thumb_func 57 SystemCoreClockUpdate: 58 .LFB131: 183:Core/Src/system_stm32f3xx.c **** 184:Core/Src/system_stm32f3xx.c **** /** 185:Core/Src/system_stm32f3xx.c **** * @brief Update SystemCoreClock variable according to Clock Register Values. 186:Core/Src/system_stm32f3xx.c **** * The SystemCoreClock variable contains the core clock (HCLK), it can 187:Core/Src/system_stm32f3xx.c **** * be used by the user application to setup the SysTick timer or configure 188:Core/Src/system_stm32f3xx.c **** * other parameters. 189:Core/Src/system_stm32f3xx.c **** * 190:Core/Src/system_stm32f3xx.c **** * @note Each time the core clock (HCLK) changes, this function must be called 191:Core/Src/system_stm32f3xx.c **** * to update SystemCoreClock variable value. Otherwise, any configuration 192:Core/Src/system_stm32f3xx.c **** * based on this variable will be incorrect. 193:Core/Src/system_stm32f3xx.c **** * 194:Core/Src/system_stm32f3xx.c **** * @note - The system frequency computed by this function is not the real 195:Core/Src/system_stm32f3xx.c **** * frequency in the chip. It is calculated based on the predefined 196:Core/Src/system_stm32f3xx.c **** * constant and the selected clock source: 197:Core/Src/system_stm32f3xx.c **** * 198:Core/Src/system_stm32f3xx.c **** * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*) 199:Core/Src/system_stm32f3xx.c **** * 200:Core/Src/system_stm32f3xx.c **** * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**) 201:Core/Src/system_stm32f3xx.c **** * 202:Core/Src/system_stm32f3xx.c **** * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**) 203:Core/Src/system_stm32f3xx.c **** * or HSI_VALUE(*) multiplied/divided by the PLL factors. 204:Core/Src/system_stm32f3xx.c **** * 205:Core/Src/system_stm32f3xx.c **** * (*) HSI_VALUE is a constant defined in stm32f3xx_hal.h file (default value 206:Core/Src/system_stm32f3xx.c **** * 8 MHz) but the real value may vary depending on the variations 207:Core/Src/system_stm32f3xx.c **** * in voltage and temperature. 208:Core/Src/system_stm32f3xx.c **** * 209:Core/Src/system_stm32f3xx.c **** * (**) HSE_VALUE is a constant defined in stm32f3xx_hal.h file (default value 210:Core/Src/system_stm32f3xx.c **** * 8 MHz), user has to ensure that HSE_VALUE is same as the real 211:Core/Src/system_stm32f3xx.c **** * frequency of the crystal used. Otherwise, this function may 212:Core/Src/system_stm32f3xx.c **** * have wrong result. 213:Core/Src/system_stm32f3xx.c **** * 214:Core/Src/system_stm32f3xx.c **** * - The result of this function could be not correct when using fractional 215:Core/Src/system_stm32f3xx.c **** * value for HSE crystal. 216:Core/Src/system_stm32f3xx.c **** * 217:Core/Src/system_stm32f3xx.c **** * @param None 218:Core/Src/system_stm32f3xx.c **** * @retval None 219:Core/Src/system_stm32f3xx.c **** */ 220:Core/Src/system_stm32f3xx.c **** void SystemCoreClockUpdate (void) 221:Core/Src/system_stm32f3xx.c **** { 59 .loc 1 221 1 is_stmt 1 view -0 60 .cfi_startproc 61 @ args = 0, pretend = 0, frame = 0 62 @ frame_needed = 0, uses_anonymous_args = 0 63 @ link register save eliminated. 222:Core/Src/system_stm32f3xx.c **** uint32_t tmp = 0, pllmull = 0, pllsource = 0, predivfactor = 0; 64 .loc 1 222 3 view .LVU6 65 .LVL0: 223:Core/Src/system_stm32f3xx.c **** ARM GAS /tmp/ccIBrQzE.s page 6 224:Core/Src/system_stm32f3xx.c **** /* Get SYSCLK source -------------------------------------------------------*/ 225:Core/Src/system_stm32f3xx.c **** tmp = RCC->CFGR & RCC_CFGR_SWS; 66 .loc 1 225 3 view .LVU7 67 .loc 1 225 12 is_stmt 0 view .LVU8 68 0000 1D4B ldr r3, .L11 69 0002 5B68 ldr r3, [r3, #4] 70 .loc 1 225 7 view .LVU9 71 0004 03F00C03 and r3, r3, #12 72 .LVL1: 226:Core/Src/system_stm32f3xx.c **** 227:Core/Src/system_stm32f3xx.c **** switch (tmp) 73 .loc 1 227 3 is_stmt 1 view .LVU10 74 0008 042B cmp r3, #4 75 000a 14D0 beq .L5 76 000c 082B cmp r3, #8 77 000e 16D0 beq .L6 78 0010 1BB1 cbz r3, .L10 228:Core/Src/system_stm32f3xx.c **** { 229:Core/Src/system_stm32f3xx.c **** case RCC_CFGR_SWS_HSI: /* HSI used as system clock */ 230:Core/Src/system_stm32f3xx.c **** SystemCoreClock = HSI_VALUE; 231:Core/Src/system_stm32f3xx.c **** break; 232:Core/Src/system_stm32f3xx.c **** case RCC_CFGR_SWS_HSE: /* HSE used as system clock */ 233:Core/Src/system_stm32f3xx.c **** SystemCoreClock = HSE_VALUE; 234:Core/Src/system_stm32f3xx.c **** break; 235:Core/Src/system_stm32f3xx.c **** case RCC_CFGR_SWS_PLL: /* PLL used as system clock */ 236:Core/Src/system_stm32f3xx.c **** /* Get PLL clock source and multiplication factor ----------------------*/ 237:Core/Src/system_stm32f3xx.c **** pllmull = RCC->CFGR & RCC_CFGR_PLLMUL; 238:Core/Src/system_stm32f3xx.c **** pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; 239:Core/Src/system_stm32f3xx.c **** pllmull = ( pllmull >> 18) + 2; 240:Core/Src/system_stm32f3xx.c **** 241:Core/Src/system_stm32f3xx.c **** #if defined (STM32F302xE) || defined (STM32F303xE) || defined (STM32F398xx) 242:Core/Src/system_stm32f3xx.c **** predivfactor = (RCC->CFGR2 & RCC_CFGR2_PREDIV) + 1; 243:Core/Src/system_stm32f3xx.c **** if (pllsource == RCC_CFGR_PLLSRC_HSE_PREDIV) 244:Core/Src/system_stm32f3xx.c **** { 245:Core/Src/system_stm32f3xx.c **** /* HSE oscillator clock selected as PREDIV1 clock entry */ 246:Core/Src/system_stm32f3xx.c **** SystemCoreClock = (HSE_VALUE / predivfactor) * pllmull; 247:Core/Src/system_stm32f3xx.c **** } 248:Core/Src/system_stm32f3xx.c **** else 249:Core/Src/system_stm32f3xx.c **** { 250:Core/Src/system_stm32f3xx.c **** /* HSI oscillator clock selected as PREDIV1 clock entry */ 251:Core/Src/system_stm32f3xx.c **** SystemCoreClock = (HSI_VALUE / predivfactor) * pllmull; 252:Core/Src/system_stm32f3xx.c **** } 253:Core/Src/system_stm32f3xx.c **** #else 254:Core/Src/system_stm32f3xx.c **** if (pllsource == RCC_CFGR_PLLSRC_HSI_DIV2) 255:Core/Src/system_stm32f3xx.c **** { 256:Core/Src/system_stm32f3xx.c **** /* HSI oscillator clock divided by 2 selected as PLL clock entry */ 257:Core/Src/system_stm32f3xx.c **** SystemCoreClock = (HSI_VALUE >> 1) * pllmull; 258:Core/Src/system_stm32f3xx.c **** } 259:Core/Src/system_stm32f3xx.c **** else 260:Core/Src/system_stm32f3xx.c **** { 261:Core/Src/system_stm32f3xx.c **** predivfactor = (RCC->CFGR2 & RCC_CFGR2_PREDIV) + 1; 262:Core/Src/system_stm32f3xx.c **** /* HSE oscillator clock selected as PREDIV1 clock entry */ 263:Core/Src/system_stm32f3xx.c **** SystemCoreClock = (HSE_VALUE / predivfactor) * pllmull; 264:Core/Src/system_stm32f3xx.c **** } 265:Core/Src/system_stm32f3xx.c **** #endif /* STM32F302xE || STM32F303xE || STM32F398xx */ 266:Core/Src/system_stm32f3xx.c **** break; 267:Core/Src/system_stm32f3xx.c **** default: /* HSI used as system clock */ ARM GAS /tmp/ccIBrQzE.s page 7 268:Core/Src/system_stm32f3xx.c **** SystemCoreClock = HSI_VALUE; 79 .loc 1 268 7 view .LVU11 80 .loc 1 268 23 is_stmt 0 view .LVU12 81 0012 1A4B ldr r3, .L11+4 82 .LVL2: 83 .loc 1 268 23 view .LVU13 84 0014 1A4A ldr r2, .L11+8 85 0016 1A60 str r2, [r3] 269:Core/Src/system_stm32f3xx.c **** break; 86 .loc 1 269 7 is_stmt 1 view .LVU14 87 0018 02E0 b .L8 88 .LVL3: 89 .L10: 230:Core/Src/system_stm32f3xx.c **** break; 90 .loc 1 230 7 view .LVU15 230:Core/Src/system_stm32f3xx.c **** break; 91 .loc 1 230 23 is_stmt 0 view .LVU16 92 001a 184B ldr r3, .L11+4 93 .LVL4: 230:Core/Src/system_stm32f3xx.c **** break; 94 .loc 1 230 23 view .LVU17 95 001c 184A ldr r2, .L11+8 96 001e 1A60 str r2, [r3] 231:Core/Src/system_stm32f3xx.c **** case RCC_CFGR_SWS_HSE: /* HSE used as system clock */ 97 .loc 1 231 7 is_stmt 1 view .LVU18 98 .LVL5: 99 .L8: 270:Core/Src/system_stm32f3xx.c **** } 271:Core/Src/system_stm32f3xx.c **** /* Compute HCLK clock frequency ----------------*/ 272:Core/Src/system_stm32f3xx.c **** /* Get HCLK prescaler */ 273:Core/Src/system_stm32f3xx.c **** tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)]; 100 .loc 1 273 3 view .LVU19 101 .loc 1 273 28 is_stmt 0 view .LVU20 102 0020 154B ldr r3, .L11 103 0022 5B68 ldr r3, [r3, #4] 104 .loc 1 273 52 view .LVU21 105 0024 C3F30313 ubfx r3, r3, #4, #4 106 .loc 1 273 22 view .LVU22 107 0028 164A ldr r2, .L11+12 108 002a D15C ldrb r1, [r2, r3] @ zero_extendqisi2 109 .LVL6: 274:Core/Src/system_stm32f3xx.c **** /* HCLK clock frequency */ 275:Core/Src/system_stm32f3xx.c **** SystemCoreClock >>= tmp; 110 .loc 1 275 3 is_stmt 1 view .LVU23 111 .loc 1 275 19 is_stmt 0 view .LVU24 112 002c 134A ldr r2, .L11+4 113 002e 1368 ldr r3, [r2] 114 0030 CB40 lsrs r3, r3, r1 115 0032 1360 str r3, [r2] 276:Core/Src/system_stm32f3xx.c **** } 116 .loc 1 276 1 view .LVU25 117 0034 7047 bx lr 118 .LVL7: 119 .L5: 233:Core/Src/system_stm32f3xx.c **** break; 120 .loc 1 233 7 is_stmt 1 view .LVU26 233:Core/Src/system_stm32f3xx.c **** break; ARM GAS /tmp/ccIBrQzE.s page 8 121 .loc 1 233 23 is_stmt 0 view .LVU27 122 0036 114B ldr r3, .L11+4 123 .LVL8: 233:Core/Src/system_stm32f3xx.c **** break; 124 .loc 1 233 23 view .LVU28 125 0038 134A ldr r2, .L11+16 126 003a 1A60 str r2, [r3] 234:Core/Src/system_stm32f3xx.c **** case RCC_CFGR_SWS_PLL: /* PLL used as system clock */ 127 .loc 1 234 7 is_stmt 1 view .LVU29 128 003c F0E7 b .L8 129 .LVL9: 130 .L6: 237:Core/Src/system_stm32f3xx.c **** pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; 131 .loc 1 237 7 view .LVU30 237:Core/Src/system_stm32f3xx.c **** pllsource = RCC->CFGR & RCC_CFGR_PLLSRC; 132 .loc 1 237 20 is_stmt 0 view .LVU31 133 003e 0E4A ldr r2, .L11 134 0040 5368 ldr r3, [r2, #4] 135 .LVL10: 238:Core/Src/system_stm32f3xx.c **** pllmull = ( pllmull >> 18) + 2; 136 .loc 1 238 7 is_stmt 1 view .LVU32 238:Core/Src/system_stm32f3xx.c **** pllmull = ( pllmull >> 18) + 2; 137 .loc 1 238 22 is_stmt 0 view .LVU33 138 0042 5268 ldr r2, [r2, #4] 139 .LVL11: 239:Core/Src/system_stm32f3xx.c **** 140 .loc 1 239 7 is_stmt 1 view .LVU34 239:Core/Src/system_stm32f3xx.c **** 141 .loc 1 239 27 is_stmt 0 view .LVU35 142 0044 C3F38343 ubfx r3, r3, #18, #4 143 .LVL12: 239:Core/Src/system_stm32f3xx.c **** 144 .loc 1 239 15 view .LVU36 145 0048 0233 adds r3, r3, #2 146 .LVL13: 254:Core/Src/system_stm32f3xx.c **** { 147 .loc 1 254 7 is_stmt 1 view .LVU37 254:Core/Src/system_stm32f3xx.c **** { 148 .loc 1 254 10 is_stmt 0 view .LVU38 149 004a 12F4803F tst r2, #65536 150 004e 05D1 bne .L9 257:Core/Src/system_stm32f3xx.c **** } 151 .loc 1 257 9 is_stmt 1 view .LVU39 257:Core/Src/system_stm32f3xx.c **** } 152 .loc 1 257 44 is_stmt 0 view .LVU40 153 0050 0E4A ldr r2, .L11+20 154 .LVL14: 257:Core/Src/system_stm32f3xx.c **** } 155 .loc 1 257 44 view .LVU41 156 0052 02FB03F3 mul r3, r2, r3 157 .LVL15: 257:Core/Src/system_stm32f3xx.c **** } 158 .loc 1 257 25 view .LVU42 159 0056 094A ldr r2, .L11+4 160 0058 1360 str r3, [r2] 161 005a E1E7 b .L8 162 .LVL16: ARM GAS /tmp/ccIBrQzE.s page 9 163 .L9: 261:Core/Src/system_stm32f3xx.c **** /* HSE oscillator clock selected as PREDIV1 clock entry */ 164 .loc 1 261 9 is_stmt 1 view .LVU43 261:Core/Src/system_stm32f3xx.c **** /* HSE oscillator clock selected as PREDIV1 clock entry */ 165 .loc 1 261 28 is_stmt 0 view .LVU44 166 005c 064A ldr r2, .L11 167 .LVL17: 261:Core/Src/system_stm32f3xx.c **** /* HSE oscillator clock selected as PREDIV1 clock entry */ 168 .loc 1 261 28 view .LVU45 169 005e D16A ldr r1, [r2, #44] 261:Core/Src/system_stm32f3xx.c **** /* HSE oscillator clock selected as PREDIV1 clock entry */ 170 .loc 1 261 36 view .LVU46 171 0060 01F00F01 and r1, r1, #15 261:Core/Src/system_stm32f3xx.c **** /* HSE oscillator clock selected as PREDIV1 clock entry */ 172 .loc 1 261 22 view .LVU47 173 0064 0131 adds r1, r1, #1 174 .LVL18: 263:Core/Src/system_stm32f3xx.c **** } 175 .loc 1 263 9 is_stmt 1 view .LVU48 263:Core/Src/system_stm32f3xx.c **** } 176 .loc 1 263 38 is_stmt 0 view .LVU49 177 0066 084A ldr r2, .L11+16 178 0068 B2FBF1F2 udiv r2, r2, r1 263:Core/Src/system_stm32f3xx.c **** } 179 .loc 1 263 54 view .LVU50 180 006c 02FB03F3 mul r3, r2, r3 181 .LVL19: 263:Core/Src/system_stm32f3xx.c **** } 182 .loc 1 263 25 view .LVU51 183 0070 024A ldr r2, .L11+4 184 0072 1360 str r3, [r2] 185 0074 D4E7 b .L8 186 .L12: 187 0076 00BF .align 2 188 .L11: 189 0078 00100240 .word 1073876992 190 007c 00000000 .word SystemCoreClock 191 0080 00127A00 .word 8000000 192 0084 00000000 .word AHBPrescTable 193 0088 0024F400 .word 16000000 194 008c 00093D00 .word 4000000 195 .cfi_endproc 196 .LFE131: 198 .global APBPrescTable 199 .section .rodata.APBPrescTable,"a" 200 .align 2 203 APBPrescTable: 204 0000 00000000 .ascii "\000\000\000\000\001\002\003\004" 204 01020304 205 .global AHBPrescTable 206 .section .rodata.AHBPrescTable,"a" 207 .align 2 210 AHBPrescTable: 211 0000 00000000 .ascii "\000\000\000\000\000\000\000\000\001\002\003\004\006" 211 00000000 211 01020304 211 06 ARM GAS /tmp/ccIBrQzE.s page 10 212 000d 070809 .ascii "\007\010\011" 213 .global SystemCoreClock 214 .section .data.SystemCoreClock,"aw" 215 .align 2 218 SystemCoreClock: 219 0000 00127A00 .word 8000000 220 .text 221 .Letext0: 222 .file 2 "/home/david/.config/Code/User/globalStorage/bmd.stm32-for-vscode/@xpack-dev-tools/arm-non 223 .file 3 "/home/david/.config/Code/User/globalStorage/bmd.stm32-for-vscode/@xpack-dev-tools/arm-non 224 .file 4 "Drivers/CMSIS/Include/core_cm4.h" 225 .file 5 "Drivers/CMSIS/Device/ST/STM32F3xx/Include/system_stm32f3xx.h" 226 .file 6 "Drivers/CMSIS/Device/ST/STM32F3xx/Include/stm32f302xc.h" ARM GAS /tmp/ccIBrQzE.s page 11 DEFINED SYMBOLS *ABS*:0000000000000000 system_stm32f3xx.c /tmp/ccIBrQzE.s:21 .text.SystemInit:0000000000000000 $t /tmp/ccIBrQzE.s:27 .text.SystemInit:0000000000000000 SystemInit /tmp/ccIBrQzE.s:46 .text.SystemInit:0000000000000010 $d /tmp/ccIBrQzE.s:51 .text.SystemCoreClockUpdate:0000000000000000 $t /tmp/ccIBrQzE.s:57 .text.SystemCoreClockUpdate:0000000000000000 SystemCoreClockUpdate /tmp/ccIBrQzE.s:189 .text.SystemCoreClockUpdate:0000000000000078 $d /tmp/ccIBrQzE.s:218 .data.SystemCoreClock:0000000000000000 SystemCoreClock /tmp/ccIBrQzE.s:210 .rodata.AHBPrescTable:0000000000000000 AHBPrescTable /tmp/ccIBrQzE.s:203 .rodata.APBPrescTable:0000000000000000 APBPrescTable /tmp/ccIBrQzE.s:200 .rodata.APBPrescTable:0000000000000000 $d /tmp/ccIBrQzE.s:207 .rodata.AHBPrescTable:0000000000000000 $d /tmp/ccIBrQzE.s:215 .data.SystemCoreClock:0000000000000000 $d NO UNDEFINED SYMBOLS