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1 /** |
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2 ****************************************************************************** |
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3 * @file startup_stm32f303xe.s |
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4 * @author MCD Application Team |
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5 * @brief STM32F303xE devices vector table for GCC toolchain. |
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6 * This module performs: |
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7 * - Set the initial SP |
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8 * - Set the initial PC == Reset_Handler, |
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9 * - Set the vector table entries with the exceptions ISR address, |
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10 * - Configure the clock system |
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11 * - Branches to main in the C library (which eventually |
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12 * calls main()). |
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13 * After Reset the Cortex-M4 processor is in Thread mode, |
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14 * priority is Privileged, and the Stack is set to Main. |
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15 ****************************************************************************** |
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16 * |
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17 * Redistribution and use in source and binary forms, with or without modification, |
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18 * are permitted provided that the following conditions are met: |
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19 * 1. Redistributions of source code must retain the above copyright notice, |
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20 * this list of conditions and the following disclaimer. |
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21 * 2. Redistributions in binary form must reproduce the above copyright notice, |
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22 * this list of conditions and the following disclaimer in the documentation |
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23 * and/or other materials provided with the distribution. |
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24 * 3. Neither the name of STMicroelectronics nor the names of its contributors |
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25 * may be used to endorse or promote products derived from this software |
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26 * without specific prior written permission. |
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27 * |
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28 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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29 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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31 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
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32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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34 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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35 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
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36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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37 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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38 * |
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39 ****************************************************************************** |
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40 */ |
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41 |
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42 .syntax unified |
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43 .cpu cortex-m4 |
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44 .fpu softvfp |
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45 .thumb |
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46 |
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47 .global g_pfnVectors |
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48 .global Default_Handler |
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49 |
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50 /* start address for the initialization values of the .data section. |
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51 defined in linker script */ |
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52 .word _sidata |
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53 /* start address for the .data section. defined in linker script */ |
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54 .word _sdata |
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55 /* end address for the .data section. defined in linker script */ |
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56 .word _edata |
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57 /* start address for the .bss section. defined in linker script */ |
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58 .word _sbss |
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59 /* end address for the .bss section. defined in linker script */ |
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60 .word _ebss |
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61 |
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62 .equ BootRAM, 0xF1E0F85F |
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63 /** |
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64 * @brief This is the code that gets called when the processor first |
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65 * starts execution following a reset event. Only the absolutely |
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66 * necessary set is performed, after which the application |
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67 * supplied main() routine is called. |
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68 * @param None |
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69 * @retval : None |
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70 */ |
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71 |
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72 .section .text.Reset_Handler |
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73 .weak Reset_Handler |
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74 .type Reset_Handler, %function |
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75 Reset_Handler: |
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76 ldr sp, =_estack /* Atollic update: set stack pointer */ |
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77 |
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78 /* Copy the data segment initializers from flash to SRAM */ |
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79 movs r1, #0 |
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80 b LoopCopyDataInit |
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81 |
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82 CopyDataInit: |
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83 ldr r3, =_sidata |
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84 ldr r3, [r3, r1] |
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85 str r3, [r0, r1] |
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86 adds r1, r1, #4 |
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87 |
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88 LoopCopyDataInit: |
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89 ldr r0, =_sdata |
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90 ldr r3, =_edata |
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91 adds r2, r0, r1 |
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92 cmp r2, r3 |
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93 bcc CopyDataInit |
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94 ldr r2, =_sbss |
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95 b LoopFillZerobss |
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96 /* Zero fill the bss segment. */ |
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97 FillZerobss: |
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98 movs r3, #0 |
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99 str r3, [r2], #4 |
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100 |
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101 LoopFillZerobss: |
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102 ldr r3, = _ebss |
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103 cmp r2, r3 |
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104 bcc FillZerobss |
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105 |
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106 /* Call the clock system intitialization function.*/ |
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107 bl SystemInit |
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108 /* Call static constructors */ |
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109 //bl __libc_init_array |
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110 /* Call the application's entry point.*/ |
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111 //bl main |
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112 /** |
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113 * Calling the crt0 'cold-start' entry point. There __libc_init_array is called |
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114 * and when existing hardware_init_hook() and software_init_hook() before |
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115 * starting main(). software_init_hook() is available and has to be called due |
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116 * to initializsation when using rtos. |
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117 */ |
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118 bl _start |
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119 |
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120 LoopForever: |
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121 b LoopForever |
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122 |
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123 .size Reset_Handler, .-Reset_Handler |
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124 |
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125 /** |
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126 * @brief This is the code that gets called when the processor receives an |
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127 * unexpected interrupt. This simply enters an infinite loop, preserving |
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128 * the system state for examination by a debugger. |
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129 * |
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130 * @param None |
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131 * @retval : None |
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132 */ |
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133 .section .text.Default_Handler,"ax",%progbits |
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134 Default_Handler: |
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135 Infinite_Loop: |
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136 b Infinite_Loop |
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137 .size Default_Handler, .-Default_Handler |
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138 /****************************************************************************** |
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139 * |
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140 * The minimal vector table for a Cortex-M4. Note that the proper constructs |
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141 * must be placed on this to ensure that it ends up at physical address |
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142 * 0x0000.0000. |
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143 * |
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144 ******************************************************************************/ |
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145 .section .isr_vector,"a",%progbits |
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146 .type g_pfnVectors, %object |
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147 .size g_pfnVectors, .-g_pfnVectors |
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148 |
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149 |
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150 g_pfnVectors: |
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151 .word _estack |
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152 .word Reset_Handler |
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153 .word NMI_Handler |
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154 .word HardFault_Handler |
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155 .word MemManage_Handler |
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156 .word BusFault_Handler |
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157 .word UsageFault_Handler |
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158 .word 0 |
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159 .word 0 |
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160 .word 0 |
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161 .word 0 |
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162 .word SVC_Handler |
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163 .word DebugMon_Handler |
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164 .word 0 |
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165 .word PendSV_Handler |
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166 .word SysTick_Handler |
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167 .word WWDG_IRQHandler |
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168 .word PVD_IRQHandler |
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169 .word TAMP_STAMP_IRQHandler |
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170 .word RTC_WKUP_IRQHandler |
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171 .word FLASH_IRQHandler |
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172 .word RCC_IRQHandler |
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173 .word EXTI0_IRQHandler |
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174 .word EXTI1_IRQHandler |
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175 .word EXTI2_TSC_IRQHandler |
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176 .word EXTI3_IRQHandler |
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177 .word EXTI4_IRQHandler |
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178 .word DMA1_Channel1_IRQHandler |
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179 .word DMA1_Channel2_IRQHandler |
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180 .word DMA1_Channel3_IRQHandler |
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181 .word DMA1_Channel4_IRQHandler |
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182 .word DMA1_Channel5_IRQHandler |
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183 .word DMA1_Channel6_IRQHandler |
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184 .word DMA1_Channel7_IRQHandler |
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185 .word ADC1_2_IRQHandler |
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186 .word USB_HP_CAN_TX_IRQHandler |
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187 .word USB_LP_CAN_RX0_IRQHandler |
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188 .word CAN_RX1_IRQHandler |
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189 .word CAN_SCE_IRQHandler |
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190 .word EXTI9_5_IRQHandler |
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191 .word TIM1_BRK_TIM15_IRQHandler |
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192 .word TIM1_UP_TIM16_IRQHandler |
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193 .word TIM1_TRG_COM_TIM17_IRQHandler |
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194 .word TIM1_CC_IRQHandler |
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195 .word TIM2_IRQHandler |
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196 .word TIM3_IRQHandler |
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197 .word TIM4_IRQHandler |
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198 .word I2C1_EV_IRQHandler |
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199 .word I2C1_ER_IRQHandler |
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200 .word I2C2_EV_IRQHandler |
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201 .word I2C2_ER_IRQHandler |
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202 .word SPI1_IRQHandler |
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203 .word SPI2_IRQHandler |
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204 .word USART1_IRQHandler |
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205 .word USART2_IRQHandler |
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206 .word USART3_IRQHandler |
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207 .word EXTI15_10_IRQHandler |
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208 .word RTC_Alarm_IRQHandler |
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209 .word USBWakeUp_IRQHandler |
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210 .word TIM8_BRK_IRQHandler |
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211 .word TIM8_UP_IRQHandler |
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212 .word TIM8_TRG_COM_IRQHandler |
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213 .word TIM8_CC_IRQHandler |
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214 .word ADC3_IRQHandler |
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215 .word FMC_IRQHandler |
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216 .word 0 |
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217 .word 0 |
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218 .word SPI3_IRQHandler |
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219 .word UART4_IRQHandler |
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220 .word UART5_IRQHandler |
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221 .word TIM6_DAC_IRQHandler |
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222 .word TIM7_IRQHandler |
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223 .word DMA2_Channel1_IRQHandler |
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224 .word DMA2_Channel2_IRQHandler |
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225 .word DMA2_Channel3_IRQHandler |
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226 .word DMA2_Channel4_IRQHandler |
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227 .word DMA2_Channel5_IRQHandler |
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228 .word ADC4_IRQHandler |
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229 .word 0 |
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230 .word 0 |
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231 .word COMP1_2_3_IRQHandler |
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232 .word COMP4_5_6_IRQHandler |
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233 .word COMP7_IRQHandler |
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234 .word 0 |
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235 .word 0 |
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236 .word 0 |
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237 .word 0 |
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238 .word 0 |
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239 .word I2C3_EV_IRQHandler |
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240 .word I2C3_ER_IRQHandler |
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241 .word USB_HP_IRQHandler |
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242 .word USB_LP_IRQHandler |
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243 .word USBWakeUp_RMP_IRQHandler |
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244 .word TIM20_BRK_IRQHandler |
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245 .word TIM20_UP_IRQHandler |
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246 .word TIM20_TRG_COM_IRQHandler |
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247 .word TIM20_CC_IRQHandler |
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248 .word FPU_IRQHandler |
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249 .word 0 |
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250 .word 0 |
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251 .word SPI4_IRQHandler |
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252 |
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253 /******************************************************************************* |
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254 * |
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255 * Provide weak aliases for each Exception handler to the Default_Handler. |
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256 * As they are weak aliases, any function with the same name will override |
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257 * this definition. |
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258 * |
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259 *******************************************************************************/ |
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260 |
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261 .weak NMI_Handler |
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262 .thumb_set NMI_Handler,Default_Handler |
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263 |
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264 .weak HardFault_Handler |
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265 .thumb_set HardFault_Handler,Default_Handler |
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266 |
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267 .weak MemManage_Handler |
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268 .thumb_set MemManage_Handler,Default_Handler |
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269 |
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270 .weak BusFault_Handler |
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271 .thumb_set BusFault_Handler,Default_Handler |
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272 |
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273 .weak UsageFault_Handler |
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274 .thumb_set UsageFault_Handler,Default_Handler |
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275 |
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276 .weak SVC_Handler |
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277 .thumb_set SVC_Handler,Default_Handler |
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278 |
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279 .weak DebugMon_Handler |
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280 .thumb_set DebugMon_Handler,Default_Handler |
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281 |
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282 .weak PendSV_Handler |
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283 .thumb_set PendSV_Handler,Default_Handler |
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284 |
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285 .weak SysTick_Handler |
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286 .thumb_set SysTick_Handler,Default_Handler |
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287 |
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288 .weak WWDG_IRQHandler |
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289 .thumb_set WWDG_IRQHandler,Default_Handler |
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290 |
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291 .weak PVD_IRQHandler |
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292 .thumb_set PVD_IRQHandler,Default_Handler |
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293 |
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294 .weak TAMP_STAMP_IRQHandler |
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295 .thumb_set TAMP_STAMP_IRQHandler,Default_Handler |
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296 |
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297 .weak RTC_WKUP_IRQHandler |
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298 .thumb_set RTC_WKUP_IRQHandler,Default_Handler |
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299 |
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300 .weak FLASH_IRQHandler |
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301 .thumb_set FLASH_IRQHandler,Default_Handler |
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302 |
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303 .weak RCC_IRQHandler |
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304 .thumb_set RCC_IRQHandler,Default_Handler |
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305 |
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306 .weak EXTI0_IRQHandler |
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307 .thumb_set EXTI0_IRQHandler,Default_Handler |
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308 |
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309 .weak EXTI1_IRQHandler |
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310 .thumb_set EXTI1_IRQHandler,Default_Handler |
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311 |
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312 .weak EXTI2_TSC_IRQHandler |
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313 .thumb_set EXTI2_TSC_IRQHandler,Default_Handler |
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314 |
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315 .weak EXTI3_IRQHandler |
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316 .thumb_set EXTI3_IRQHandler,Default_Handler |
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317 |
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318 .weak EXTI4_IRQHandler |
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319 .thumb_set EXTI4_IRQHandler,Default_Handler |
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320 |
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321 .weak DMA1_Channel1_IRQHandler |
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322 .thumb_set DMA1_Channel1_IRQHandler,Default_Handler |
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323 |
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324 .weak DMA1_Channel2_IRQHandler |
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325 .thumb_set DMA1_Channel2_IRQHandler,Default_Handler |
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326 |
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327 .weak DMA1_Channel3_IRQHandler |
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328 .thumb_set DMA1_Channel3_IRQHandler,Default_Handler |
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329 |
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330 .weak DMA1_Channel4_IRQHandler |
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331 .thumb_set DMA1_Channel4_IRQHandler,Default_Handler |
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332 |
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333 .weak DMA1_Channel5_IRQHandler |
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334 .thumb_set DMA1_Channel5_IRQHandler,Default_Handler |
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335 |
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336 .weak DMA1_Channel6_IRQHandler |
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337 .thumb_set DMA1_Channel6_IRQHandler,Default_Handler |
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338 |
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339 .weak DMA1_Channel7_IRQHandler |
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340 .thumb_set DMA1_Channel7_IRQHandler,Default_Handler |
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341 |
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342 .weak ADC1_2_IRQHandler |
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343 .thumb_set ADC1_2_IRQHandler,Default_Handler |
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344 |
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345 .weak USB_HP_CAN_TX_IRQHandler |
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346 .thumb_set USB_HP_CAN_TX_IRQHandler,Default_Handler |
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347 |
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348 .weak USB_LP_CAN_RX0_IRQHandler |
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349 .thumb_set USB_LP_CAN_RX0_IRQHandler,Default_Handler |
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350 |
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351 .weak CAN_RX1_IRQHandler |
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352 .thumb_set CAN_RX1_IRQHandler,Default_Handler |
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353 |
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354 .weak CAN_SCE_IRQHandler |
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355 .thumb_set CAN_SCE_IRQHandler,Default_Handler |
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356 |
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357 .weak EXTI9_5_IRQHandler |
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358 .thumb_set EXTI9_5_IRQHandler,Default_Handler |
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359 |
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360 .weak TIM1_BRK_TIM15_IRQHandler |
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361 .thumb_set TIM1_BRK_TIM15_IRQHandler,Default_Handler |
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362 |
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363 .weak TIM1_UP_TIM16_IRQHandler |
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364 .thumb_set TIM1_UP_TIM16_IRQHandler,Default_Handler |
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365 |
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366 .weak TIM1_TRG_COM_TIM17_IRQHandler |
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367 .thumb_set TIM1_TRG_COM_TIM17_IRQHandler,Default_Handler |
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368 |
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369 .weak TIM1_CC_IRQHandler |
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370 .thumb_set TIM1_CC_IRQHandler,Default_Handler |
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371 |
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372 .weak TIM2_IRQHandler |
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373 .thumb_set TIM2_IRQHandler,Default_Handler |
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374 |
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375 .weak TIM3_IRQHandler |
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376 .thumb_set TIM3_IRQHandler,Default_Handler |
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377 |
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378 .weak TIM4_IRQHandler |
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379 .thumb_set TIM4_IRQHandler,Default_Handler |
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380 |
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381 .weak I2C1_EV_IRQHandler |
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382 .thumb_set I2C1_EV_IRQHandler,Default_Handler |
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383 |
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384 .weak I2C1_ER_IRQHandler |
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385 .thumb_set I2C1_ER_IRQHandler,Default_Handler |
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386 |
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387 .weak I2C2_EV_IRQHandler |
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388 .thumb_set I2C2_EV_IRQHandler,Default_Handler |
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389 |
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390 .weak I2C2_ER_IRQHandler |
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391 .thumb_set I2C2_ER_IRQHandler,Default_Handler |
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392 |
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393 .weak SPI1_IRQHandler |
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394 .thumb_set SPI1_IRQHandler,Default_Handler |
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395 |
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396 .weak SPI2_IRQHandler |
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397 .thumb_set SPI2_IRQHandler,Default_Handler |
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398 |
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399 .weak USART1_IRQHandler |
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400 .thumb_set USART1_IRQHandler,Default_Handler |
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401 |
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402 .weak USART2_IRQHandler |
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403 .thumb_set USART2_IRQHandler,Default_Handler |
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404 |
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405 .weak USART3_IRQHandler |
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406 .thumb_set USART3_IRQHandler,Default_Handler |
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407 |
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408 .weak EXTI15_10_IRQHandler |
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409 .thumb_set EXTI15_10_IRQHandler,Default_Handler |
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410 |
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411 .weak RTC_Alarm_IRQHandler |
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412 .thumb_set RTC_Alarm_IRQHandler,Default_Handler |
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413 |
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414 .weak USBWakeUp_IRQHandler |
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415 .thumb_set USBWakeUp_IRQHandler,Default_Handler |
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416 |
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417 .weak TIM8_BRK_IRQHandler |
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418 .thumb_set TIM8_BRK_IRQHandler,Default_Handler |
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419 |
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420 .weak TIM8_UP_IRQHandler |
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421 .thumb_set TIM8_UP_IRQHandler,Default_Handler |
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422 |
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423 .weak TIM8_TRG_COM_IRQHandler |
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424 .thumb_set TIM8_TRG_COM_IRQHandler,Default_Handler |
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425 |
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426 .weak TIM8_CC_IRQHandler |
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427 .thumb_set TIM8_CC_IRQHandler,Default_Handler |
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428 |
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429 .weak ADC3_IRQHandler |
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430 .thumb_set ADC3_IRQHandler,Default_Handler |
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431 |
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432 .weak FMC_IRQHandler |
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433 .thumb_set FMC_IRQHandler,Default_Handler |
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434 |
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435 .weak SPI3_IRQHandler |
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436 .thumb_set SPI3_IRQHandler,Default_Handler |
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437 |
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438 .weak UART4_IRQHandler |
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439 .thumb_set UART4_IRQHandler,Default_Handler |
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440 |
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441 .weak UART5_IRQHandler |
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442 .thumb_set UART5_IRQHandler,Default_Handler |
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443 |
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444 .weak TIM6_DAC_IRQHandler |
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445 .thumb_set TIM6_DAC_IRQHandler,Default_Handler |
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446 |
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447 .weak TIM7_IRQHandler |
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448 .thumb_set TIM7_IRQHandler,Default_Handler |
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449 |
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450 .weak DMA2_Channel1_IRQHandler |
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451 .thumb_set DMA2_Channel1_IRQHandler,Default_Handler |
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452 |
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453 .weak DMA2_Channel2_IRQHandler |
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454 .thumb_set DMA2_Channel2_IRQHandler,Default_Handler |
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455 |
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456 .weak DMA2_Channel3_IRQHandler |
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457 .thumb_set DMA2_Channel3_IRQHandler,Default_Handler |
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458 |
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459 .weak DMA2_Channel4_IRQHandler |
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460 .thumb_set DMA2_Channel4_IRQHandler,Default_Handler |
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461 |
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462 .weak DMA2_Channel5_IRQHandler |
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463 .thumb_set DMA2_Channel5_IRQHandler,Default_Handler |
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464 |
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465 .weak ADC4_IRQHandler |
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466 .thumb_set ADC4_IRQHandler,Default_Handler |
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467 |
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468 .weak COMP1_2_3_IRQHandler |
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469 .thumb_set COMP1_2_3_IRQHandler,Default_Handler |
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470 |
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471 .weak COMP4_5_6_IRQHandler |
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472 .thumb_set COMP4_5_6_IRQHandler,Default_Handler |
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473 |
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474 .weak COMP7_IRQHandler |
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475 .thumb_set COMP7_IRQHandler,Default_Handler |
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476 |
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477 .weak I2C3_EV_IRQHandler |
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478 .thumb_set I2C3_EV_IRQHandler,Default_Handler |
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479 |
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480 .weak I2C3_ER_IRQHandler |
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481 .thumb_set I2C3_ER_IRQHandler,Default_Handler |
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482 |
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483 .weak USB_HP_IRQHandler |
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484 .thumb_set USB_HP_IRQHandler,Default_Handler |
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485 |
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486 .weak USB_LP_IRQHandler |
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487 .thumb_set USB_LP_IRQHandler,Default_Handler |
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488 |
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489 .weak USBWakeUp_RMP_IRQHandler |
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490 .thumb_set USBWakeUp_RMP_IRQHandler,Default_Handler |
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491 |
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492 .weak TIM20_BRK_IRQHandler |
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493 .thumb_set TIM20_BRK_IRQHandler,Default_Handler |
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494 |
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495 .weak TIM20_UP_IRQHandler |
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496 .thumb_set TIM20_UP_IRQHandler,Default_Handler |
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497 |
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498 .weak TIM20_TRG_COM_IRQHandler |
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499 .thumb_set TIM20_TRG_COM_IRQHandler,Default_Handler |
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500 |
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501 .weak TIM20_CC_IRQHandler |
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502 .thumb_set TIM20_CC_IRQHandler,Default_Handler |
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503 |
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504 .weak FPU_IRQHandler |
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505 .thumb_set FPU_IRQHandler,Default_Handler |
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506 |
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507 .weak SPI4_IRQHandler |
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508 .thumb_set SPI4_IRQHandler,Default_Handler |
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509 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |