annotate OtherSources/system_stm32f4xx.c @ 191:cdbdb4458520 div-fixes-cleanup-1

cleanup: remove unused include file t9.h Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Sat, 16 Mar 2019 21:02:10 +0100
parents 2de06b1abed3
children 4e10a3e087a1
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1 /**
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2 ******************************************************************************
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3 * @file system_stm32f4xx.c
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4 * @author MCD Application Team
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5 * @version V2.1.0
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6 * @date 19-June-2014
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7 * @brief CMSIS Cortex-M4 Device Peripheral Access Layer System Source File.
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8 *
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9 * This file provides two functions and one global variable to be called from
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10 * user application:
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11 * - SystemInit(): This function is called at startup just after reset and
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12 * before branch to main program. This call is made inside
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13 * the "startup_stm32f4xx.s" file.
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14 *
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15 * - SystemCoreClock variable: Contains the core clock (HCLK), it can be used
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16 * by the user application to setup the SysTick
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17 * timer or configure other parameters.
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18 *
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19 * - SystemCoreClockUpdate(): Updates the variable SystemCoreClock and must
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20 * be called whenever the core clock is changed
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21 * during program execution.
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22 *
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23 *
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24 ******************************************************************************
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25 * @attention
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26 *
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27 * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
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28 *
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29 * Redistribution and use in source and binary forms, with or without modification,
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30 * are permitted provided that the following conditions are met:
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31 * 1. Redistributions of source code must retain the above copyright notice,
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32 * this list of conditions and the following disclaimer.
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33 * 2. Redistributions in binary form must reproduce the above copyright notice,
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34 * this list of conditions and the following disclaimer in the documentation
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35 * and/or other materials provided with the distribution.
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36 * 3. Neither the name of STMicroelectronics nor the names of its contributors
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37 * may be used to endorse or promote products derived from this software
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38 * without specific prior written permission.
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39 *
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40 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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41 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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43 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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46 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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47 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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48 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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49 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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50 *
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51 ******************************************************************************
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52 */
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53
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54 /** @addtogroup CMSIS
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55 * @{
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56 */
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57
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58 /** @addtogroup stm32f4xx_system
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59 * @{
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60 */
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61
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62 /** @addtogroup STM32F4xx_System_Private_Includes
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63 * @{
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64 */
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65
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66
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67 #include "stm32f4xx.h"
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68
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69 #if !defined (HSE_VALUE)
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70 #define HSE_VALUE ((uint32_t)8000000) /*!< Default value of the External oscillator in Hz */
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71 #endif /* HSE_VALUE */
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72
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73 #if !defined (HSI_VALUE)
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74 #define HSI_VALUE ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/
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75 #endif /* HSI_VALUE */
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76
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77 /**
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78 * @}
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79 */
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80
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81 /** @addtogroup STM32F4xx_System_Private_TypesDefinitions
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82 * @{
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83 */
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84
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85 /**
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86 * @}
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87 */
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88
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89 /** @addtogroup STM32F4xx_System_Private_Defines
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90 * @{
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91 */
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92
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93 /************************* Miscellaneous Configuration ************************/
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94 /*!< Uncomment the following line if you need to use external SRAM or SDRAM mounted
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95 on STM324xG_EVAL/STM324x9I_EVAL boards as data memory */
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96 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) || defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
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97 /* #define DATA_IN_ExtSRAM */
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98 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
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99
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100 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
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101 /* #define DATA_IN_ExtSDRAM */
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102 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
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103
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104 #if defined(DATA_IN_ExtSRAM) && defined(DATA_IN_ExtSDRAM)
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105 #error "Please select DATA_IN_ExtSRAM or DATA_IN_ExtSDRAM "
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106 #endif /* DATA_IN_ExtSRAM && DATA_IN_ExtSDRAM */
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107
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108 /*!< Uncomment the following line if you need to relocate your vector Table in
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109 Internal SRAM. */
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110 /* #define VECT_TAB_SRAM */
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111 #define VECT_TAB_OFFSET 0x00 /*!< Vector Table base offset field.
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112 This value must be a multiple of 0x200. */
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113 /******************************************************************************/
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114
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115 /**
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116 * @}
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117 */
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118
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119 /** @addtogroup STM32F4xx_System_Private_Macros
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120 * @{
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121 */
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122
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123 /**
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124 * @}
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125 */
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126
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127 /** @addtogroup STM32F4xx_System_Private_Variables
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128 * @{
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129 */
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130 /* This variable is updated in three ways:
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131 1) by calling CMSIS function SystemCoreClockUpdate()
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132 2) by calling HAL API function HAL_RCC_GetHCLKFreq()
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133 3) each time HAL_RCC_ClockConfig() is called to configure the system clock frequency
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134 Note: If you use this function to configure the system clock; then there
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135 is no need to call the 2 first functions listed above, since SystemCoreClock
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136 variable is updated automatically.
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137 */
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138 uint32_t SystemCoreClock = 16000000;
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139 __IO const uint8_t AHBPrescTable[16] = {0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 6, 7, 8, 9};
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140
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141 /**
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142 * @}
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143 */
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144
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145 /** @addtogroup STM32F4xx_System_Private_FunctionPrototypes
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146 * @{
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147 */
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148
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149 #if defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
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150 static void SystemInit_ExtMemCtl(void);
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151 #endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */
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152
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153 /**
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154 * @}
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155 */
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156
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157 /** @addtogroup STM32F4xx_System_Private_Functions
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158 * @{
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159 */
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160
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161 /**
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162 * @brief Setup the microcontroller system
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163 * Initialize the FPU setting, vector table location and External memory
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164 * configuration.
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165 * @param None
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166 * @retval None
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167 */
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168 void SystemInit(void)
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169 {
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170 /* FPU settings ------------------------------------------------------------*/
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171 #if (__FPU_PRESENT == 1) && (__FPU_USED == 1)
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172 SCB->CPACR |= ((3UL << 10*2)|(3UL << 11*2)); /* set CP10 and CP11 Full Access */
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173 #endif
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174 /* Reset the RCC clock configuration to the default reset state ------------*/
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175 /* Set HSION bit */
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176 RCC->CR |= (uint32_t)0x00000001;
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177
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178 /* Reset CFGR register */
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179 RCC->CFGR = 0x00000000;
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180
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181 /* Reset HSEON, CSSON and PLLON bits */
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182 RCC->CR &= (uint32_t)0xFEF6FFFF;
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183
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184 /* Reset PLLCFGR register */
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185 RCC->PLLCFGR = 0x24003010;
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186
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187 /* Reset HSEBYP bit */
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188 RCC->CR &= (uint32_t)0xFFFBFFFF;
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189
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190 /* Disable all interrupts */
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191 RCC->CIR = 0x00000000;
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192
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193 #if defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
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194 SystemInit_ExtMemCtl();
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195 #endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */
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196
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197 /* Configure the Vector Table location add offset address ------------------*/
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198 #ifdef VECT_TAB_SRAM
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199 SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */
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200 #else
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201 SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */
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202 #endif
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203 }
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204
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205 /**
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206 * @brief Update SystemCoreClock variable according to Clock Register Values.
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207 * The SystemCoreClock variable contains the core clock (HCLK), it can
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208 * be used by the user application to setup the SysTick timer or configure
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209 * other parameters.
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210 *
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211 * @note Each time the core clock (HCLK) changes, this function must be called
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212 * to update SystemCoreClock variable value. Otherwise, any configuration
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213 * based on this variable will be incorrect.
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214 *
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215 * @note - The system frequency computed by this function is not the real
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216 * frequency in the chip. It is calculated based on the predefined
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217 * constant and the selected clock source:
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218 *
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219 * - If SYSCLK source is HSI, SystemCoreClock will contain the HSI_VALUE(*)
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220 *
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221 * - If SYSCLK source is HSE, SystemCoreClock will contain the HSE_VALUE(**)
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222 *
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223 * - If SYSCLK source is PLL, SystemCoreClock will contain the HSE_VALUE(**)
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224 * or HSI_VALUE(*) multiplied/divided by the PLL factors.
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225 *
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226 * (*) HSI_VALUE is a constant defined in stm32f4xx_hal_conf.h file (default value
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227 * 16 MHz) but the real value may vary depending on the variations
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228 * in voltage and temperature.
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229 *
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230 * (**) HSE_VALUE is a constant defined in stm32f4xx_hal_conf.h file (its value
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231 * depends on the application requirements), user has to ensure that HSE_VALUE
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232 * is same as the real frequency of the crystal used. Otherwise, this function
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233 * may have wrong result.
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234 *
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235 * - The result of this function could be not correct when using fractional
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236 * value for HSE crystal.
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237 *
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238 * @param None
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239 * @retval None
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240 */
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241 void SystemCoreClockUpdate(void)
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242 {
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243 uint32_t tmp = 0, pllvco = 0, pllp = 2, pllsource = 0, pllm = 2;
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244
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245 /* Get SYSCLK source -------------------------------------------------------*/
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246 tmp = RCC->CFGR & RCC_CFGR_SWS;
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247
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248 switch (tmp)
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249 {
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250 case 0x00: /* HSI used as system clock source */
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251 SystemCoreClock = HSI_VALUE;
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252 break;
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253 case 0x04: /* HSE used as system clock source */
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254 SystemCoreClock = HSE_VALUE;
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255 break;
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256 case 0x08: /* PLL used as system clock source */
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257
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258 /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N
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259 SYSCLK = PLL_VCO / PLL_P
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260 */
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261 pllsource = (RCC->PLLCFGR & RCC_PLLCFGR_PLLSRC) >> 22;
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262 pllm = RCC->PLLCFGR & RCC_PLLCFGR_PLLM;
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263
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264 if (pllsource != 0)
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265 {
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266 /* HSE used as PLL clock source */
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267 pllvco = (HSE_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
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268 }
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269 else
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270 {
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271 /* HSI used as PLL clock source */
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272 pllvco = (HSI_VALUE / pllm) * ((RCC->PLLCFGR & RCC_PLLCFGR_PLLN) >> 6);
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273 }
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274
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275 pllp = (((RCC->PLLCFGR & RCC_PLLCFGR_PLLP) >>16) + 1 ) *2;
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276 SystemCoreClock = pllvco/pllp;
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277 break;
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278 default:
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279 SystemCoreClock = HSI_VALUE;
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280 break;
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281 }
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282 /* Compute HCLK frequency --------------------------------------------------*/
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283 /* Get HCLK prescaler */
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284 tmp = AHBPrescTable[((RCC->CFGR & RCC_CFGR_HPRE) >> 4)];
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285 /* HCLK frequency */
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286 SystemCoreClock >>= tmp;
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287 }
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288
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289 #if defined (DATA_IN_ExtSRAM) || defined (DATA_IN_ExtSDRAM)
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290 /**
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291 * @brief Setup the external memory controller.
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292 * Called in startup_stm32f4xx.s before jump to main.
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293 * This function configures the external memories (SRAM/SDRAM)
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294 * This SRAM/SDRAM will be used as program data memory (including heap and stack).
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295 * @param None
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296 * @retval None
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297 */
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298 void SystemInit_ExtMemCtl(void)
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299 {
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300 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
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301 #if defined (DATA_IN_ExtSDRAM)
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302 register uint32_t tmpreg = 0, timeout = 0xFFFF;
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303 register uint32_t index;
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304
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305 /* Enable GPIOC, GPIOD, GPIOE, GPIOF, GPIOG, GPIOH and GPIOI interface
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306 clock */
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307 RCC->AHB1ENR |= 0x000001F8;
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308
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309 /* Connect PDx pins to FMC Alternate function */
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310 GPIOD->AFR[0] = 0x000000CC;
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311 GPIOD->AFR[1] = 0xCC000CCC;
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312 /* Configure PDx pins in Alternate function mode */
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313 GPIOD->MODER = 0xA02A000A;
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314 /* Configure PDx pins speed to 50 MHz */
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315 GPIOD->OSPEEDR = 0xA02A000A;
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316 /* Configure PDx pins Output type to push-pull */
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317 GPIOD->OTYPER = 0x00000000;
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318 /* No pull-up, pull-down for PDx pins */
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319 GPIOD->PUPDR = 0x00000000;
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320
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321 /* Connect PEx pins to FMC Alternate function */
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322 GPIOE->AFR[0] = 0xC00000CC;
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323 GPIOE->AFR[1] = 0xCCCCCCCC;
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324 /* Configure PEx pins in Alternate function mode */
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325 GPIOE->MODER = 0xAAAA800A;
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326 /* Configure PEx pins speed to 50 MHz */
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327 GPIOE->OSPEEDR = 0xAAAA800A;
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328 /* Configure PEx pins Output type to push-pull */
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329 GPIOE->OTYPER = 0x00000000;
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330 /* No pull-up, pull-down for PEx pins */
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331 GPIOE->PUPDR = 0x00000000;
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332
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333 /* Connect PFx pins to FMC Alternate function */
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334 GPIOF->AFR[0] = 0xCCCCCCCC;
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335 GPIOF->AFR[1] = 0xCCCCCCCC;
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336 /* Configure PFx pins in Alternate function mode */
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337 GPIOF->MODER = 0xAA800AAA;
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338 /* Configure PFx pins speed to 50 MHz */
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339 GPIOF->OSPEEDR = 0xAA800AAA;
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340 /* Configure PFx pins Output type to push-pull */
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341 GPIOF->OTYPER = 0x00000000;
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342 /* No pull-up, pull-down for PFx pins */
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343 GPIOF->PUPDR = 0x00000000;
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344
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345 /* Connect PGx pins to FMC Alternate function */
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346 GPIOG->AFR[0] = 0xCCCCCCCC;
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347 GPIOG->AFR[1] = 0xCCCCCCCC;
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348 /* Configure PGx pins in Alternate function mode */
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diff changeset
349 GPIOG->MODER = 0xAAAAAAAA;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
350 /* Configure PGx pins speed to 50 MHz */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
351 GPIOG->OSPEEDR = 0xAAAAAAAA;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
352 /* Configure PGx pins Output type to push-pull */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
353 GPIOG->OTYPER = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
354 /* No pull-up, pull-down for PGx pins */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
355 GPIOG->PUPDR = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
356
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
357 /* Connect PHx pins to FMC Alternate function */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
358 GPIOH->AFR[0] = 0x00C0CC00;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
359 GPIOH->AFR[1] = 0xCCCCCCCC;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
360 /* Configure PHx pins in Alternate function mode */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
361 GPIOH->MODER = 0xAAAA08A0;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
362 /* Configure PHx pins speed to 50 MHz */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
363 GPIOH->OSPEEDR = 0xAAAA08A0;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
364 /* Configure PHx pins Output type to push-pull */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
365 GPIOH->OTYPER = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
366 /* No pull-up, pull-down for PHx pins */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
367 GPIOH->PUPDR = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
368
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
369 /* Connect PIx pins to FMC Alternate function */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
370 GPIOI->AFR[0] = 0xCCCCCCCC;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
371 GPIOI->AFR[1] = 0x00000CC0;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
372 /* Configure PIx pins in Alternate function mode */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
373 GPIOI->MODER = 0x0028AAAA;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
374 /* Configure PIx pins speed to 50 MHz */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
375 GPIOI->OSPEEDR = 0x0028AAAA;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
376 /* Configure PIx pins Output type to push-pull */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
377 GPIOI->OTYPER = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
378 /* No pull-up, pull-down for PIx pins */
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jDG
parents:
diff changeset
379 GPIOI->PUPDR = 0x00000000;
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jDG
parents:
diff changeset
380
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jDG
parents:
diff changeset
381 /*-- FMC Configuration ------------------------------------------------------*/
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jDG
parents:
diff changeset
382 /* Enable the FMC interface clock */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
383 RCC->AHB3ENR |= 0x00000001;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
384
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jDG
parents:
diff changeset
385 /* Configure and enable SDRAM bank1 */
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jDG
parents:
diff changeset
386 FMC_Bank5_6->SDCR[0] = 0x000019E0;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
387 FMC_Bank5_6->SDTR[0] = 0x01115351;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
388
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
389 /* SDRAM initialization sequence */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
390 /* Clock enable command */
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jDG
parents:
diff changeset
391 FMC_Bank5_6->SDCMR = 0x00000011;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
392 tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
393 while((tmpreg != 0) && (timeout-- > 0))
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
394 {
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
395 tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
396 }
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jDG
parents:
diff changeset
397
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
398 /* Delay */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
399 for (index = 0; index<1000; index++);
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
400
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
401 /* PALL command */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
402 FMC_Bank5_6->SDCMR = 0x00000012;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
403 timeout = 0xFFFF;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
404 while((tmpreg != 0) && (timeout-- > 0))
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
405 {
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
406 tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
407 }
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
408
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
409 /* Auto refresh command */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
410 FMC_Bank5_6->SDCMR = 0x00000073;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
411 timeout = 0xFFFF;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
412 while((tmpreg != 0) && (timeout-- > 0))
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
413 {
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
414 tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
415 }
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jDG
parents:
diff changeset
416
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
417 /* MRD register program */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
418 FMC_Bank5_6->SDCMR = 0x00046014;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
419 timeout = 0xFFFF;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
420 while((tmpreg != 0) && (timeout-- > 0))
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
421 {
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
422 tmpreg = FMC_Bank5_6->SDSR & 0x00000020;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
423 }
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
424
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
425 /* Set refresh count */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
426 tmpreg = FMC_Bank5_6->SDRTR;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
427 FMC_Bank5_6->SDRTR = (tmpreg | (0x0000027C<<1));
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
428
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
429 /* Disable write protection */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
430 tmpreg = FMC_Bank5_6->SDCR[0];
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
431 FMC_Bank5_6->SDCR[0] = (tmpreg & 0xFFFFFDFF);
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
432 #endif /* DATA_IN_ExtSDRAM */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
433 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
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jDG
parents:
diff changeset
434
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
435 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) || defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
436 #if defined(DATA_IN_ExtSRAM)
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jDG
parents:
diff changeset
437 /*-- GPIOs Configuration -----------------------------------------------------*/
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
438 /* Enable GPIOD, GPIOE, GPIOF and GPIOG interface clock */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
439 RCC->AHB1ENR |= 0x00000078;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
440
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
441 /* Connect PDx pins to FMC Alternate function */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
442 GPIOD->AFR[0] = 0x00CCC0CC;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
443 GPIOD->AFR[1] = 0xCCCCCCCC;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
444 /* Configure PDx pins in Alternate function mode */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
445 GPIOD->MODER = 0xAAAA0A8A;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
446 /* Configure PDx pins speed to 100 MHz */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
447 GPIOD->OSPEEDR = 0xFFFF0FCF;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
448 /* Configure PDx pins Output type to push-pull */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
449 GPIOD->OTYPER = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
450 /* No pull-up, pull-down for PDx pins */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
451 GPIOD->PUPDR = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
452
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
453 /* Connect PEx pins to FMC Alternate function */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
454 GPIOE->AFR[0] = 0xC00CC0CC;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
455 GPIOE->AFR[1] = 0xCCCCCCCC;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
456 /* Configure PEx pins in Alternate function mode */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
457 GPIOE->MODER = 0xAAAA828A;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
458 /* Configure PEx pins speed to 100 MHz */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
459 GPIOE->OSPEEDR = 0xFFFFC3CF;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
460 /* Configure PEx pins Output type to push-pull */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
461 GPIOE->OTYPER = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
462 /* No pull-up, pull-down for PEx pins */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
463 GPIOE->PUPDR = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
464
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
465 /* Connect PFx pins to FMC Alternate function */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
466 GPIOF->AFR[0] = 0x00CCCCCC;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
467 GPIOF->AFR[1] = 0xCCCC0000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
468 /* Configure PFx pins in Alternate function mode */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
469 GPIOF->MODER = 0xAA000AAA;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
470 /* Configure PFx pins speed to 100 MHz */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
471 GPIOF->OSPEEDR = 0xFF000FFF;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
472 /* Configure PFx pins Output type to push-pull */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
473 GPIOF->OTYPER = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
474 /* No pull-up, pull-down for PFx pins */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
475 GPIOF->PUPDR = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
476
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
477 /* Connect PGx pins to FMC Alternate function */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
478 GPIOG->AFR[0] = 0x00CCCCCC;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
479 GPIOG->AFR[1] = 0x000000C0;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
480 /* Configure PGx pins in Alternate function mode */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
481 GPIOG->MODER = 0x00085AAA;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
482 /* Configure PGx pins speed to 100 MHz */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
483 GPIOG->OSPEEDR = 0x000CAFFF;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
484 /* Configure PGx pins Output type to push-pull */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
485 GPIOG->OTYPER = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
486 /* No pull-up, pull-down for PGx pins */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
487 GPIOG->PUPDR = 0x00000000;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
488
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
489 /*-- FMC/FSMC Configuration --------------------------------------------------*/
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
490 /* Enable the FMC/FSMC interface clock */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
491 RCC->AHB3ENR |= 0x00000001;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
492
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
493 #if defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx)|| defined(STM32F439xx)
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
494 /* Configure and enable Bank1_SRAM2 */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
495 FMC_Bank1->BTCR[2] = 0x00001011;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
496 FMC_Bank1->BTCR[3] = 0x00000201;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
497 FMC_Bank1E->BWTR[2] = 0x0fffffff;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
498 #endif /* STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
499
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
500 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx)|| defined(STM32F417xx)
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
501 /* Configure and enable Bank1_SRAM2 */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
502 FSMC_Bank1->BTCR[2] = 0x00001011;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
503 FSMC_Bank1->BTCR[3] = 0x00000201;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
504 FSMC_Bank1E->BWTR[2] = 0x0FFFFFFF;
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
505 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
506
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
507 #endif /* DATA_IN_ExtSRAM */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
508 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
509 }
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
510 #endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */
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jDG
parents:
diff changeset
511 /**
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
512 * @}
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
513 */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
514
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
515 /**
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
516 * @}
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
jDG
parents:
diff changeset
517 */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
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518
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
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519 /**
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
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520 * @}
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
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521 */
2de06b1abed3 CLEAN retrieve original startup code. reset linker script.
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522 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/