1 /* ---------------------------------------------------------------------------- */
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2 /* Atmel Microcontroller Software Support */
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3 /* SAM Software Package License */
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4 /* ---------------------------------------------------------------------------- */
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5 /* Copyright (c) 2014, Atmel Corporation */
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7 /* All rights reserved. */
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9 /* Redistribution and use in source and binary forms, with or without */
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10 /* modification, are permitted provided that the following condition is met: */
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12 /* - Redistributions of source code must retain the above copyright notice, */
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13 /* this list of conditions and the disclaimer below. */
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15 /* Atmel's name may not be used to endorse or promote products derived from */
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16 /* this software without specific prior written permission. */
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18 /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */
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19 /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
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20 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */
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21 /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */
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22 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
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23 /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
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24 /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
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25 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
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26 /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */
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27 /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
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28 /* ---------------------------------------------------------------------------- */
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32 typedef void (*intfunc) (void);
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33 typedef union { intfunc __fun; void * __ptr; } intvec_elem;
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35 extern int Image$$ARM_LIB_STACK$$ZI$$Limit ;
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36 extern int Image$$Vector_region$$Base ;
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37 extern int Image$$Vector_region$$Limit ;
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39 extern void __main( void ) ;
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40 static void Reset_Handler( void ) ;
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42 int __low_level_init(void);
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44 /* Default empty handler */
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45 void Dummy_Handler(void);
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46 void NMI_Handler(void);
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48 /* Cortex-M7 core handlers */
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49 //#pragma weak NMI_Handler=Dummy_Handler
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50 #pragma weak HardFault_Handler=Dummy_Handler
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51 #pragma weak MemManage_Handler=Dummy_Handler
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52 #pragma weak BusFault_Handler=Dummy_Handler
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53 #pragma weak UsageFault_Handler=Dummy_Handler
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54 #pragma weak SVC_Handler=Dummy_Handler
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55 #pragma weak DebugMon_Handler=Dummy_Handler
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56 #pragma weak PendSV_Handler=Dummy_Handler
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57 #pragma weak SysTick_Handler=Dummy_Handler
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59 /* Peripherals handlers */
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60 #pragma weak SUPC_Handler=Dummy_Handler
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61 #pragma weak RSTC_Handler=Dummy_Handler
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62 #pragma weak RTC_Handler=Dummy_Handler
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63 #pragma weak RTT_Handler=Dummy_Handler
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64 #pragma weak WDT0_Handler=Dummy_Handler
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65 #pragma weak PMC_Handler=Dummy_Handler
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66 #pragma weak EFC_Handler=Dummy_Handler
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67 #pragma weak UART0_Handler=Dummy_Handler
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68 #pragma weak UART1_Handler=Dummy_Handler
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69 #pragma weak PIOA_Handler=Dummy_Handler
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70 #pragma weak PIOB_Handler=Dummy_Handler
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71 #ifdef _SAM_PIOC_INSTANCE_
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72 #pragma weak PIOC_Handler=Dummy_Handler
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73 #endif /* _SAM_PIOC_INSTANCE_ */
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74 #pragma weak USART0_Handler=Dummy_Handler
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75 #pragma weak USART1_Handler=Dummy_Handler
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76 #pragma weak USART2_Handler=Dummy_Handler
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77 #pragma weak PIOD_Handler=Dummy_Handler
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78 #ifdef _SAM_PIOE_INSTANCE_
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79 #pragma weak PIOE_Handler=Dummy_Handler
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80 #endif /* _SAM_PIOE_INSTANCE_ */
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81 #ifdef _SAM_HSMCI_INSTANCE_
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82 #pragma weak HSMCI_Handler=Dummy_Handler
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83 #endif /* _SAM_HSMCI_INSTANCE_ */
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84 #pragma weak TWI0_Handler=Dummy_Handler
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85 #pragma weak TWI1_Handler=Dummy_Handler
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86 #pragma weak SPI0_Handler=Dummy_Handler
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87 #pragma weak SSC_Handler=Dummy_Handler
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88 #pragma weak TC0_Handler=Dummy_Handler
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89 #pragma weak TC1_Handler=Dummy_Handler
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90 #pragma weak TC2_Handler=Dummy_Handler
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91 #ifdef _SAM_TC1_INSTANCE_
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92 #pragma weak TC3_Handler=Dummy_Handler
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93 #endif /* _SAM_TC1_INSTANCE_ */
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94 #ifdef _SAM_TC1_INSTANCE_
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95 #pragma weak TC4_Handler=Dummy_Handler
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96 #endif /* _SAM_TC1_INSTANCE_ */
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97 #ifdef _SAM_TC1_INSTANCE_
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98 #pragma weak TC5_Handler=Dummy_Handler
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99 #endif /* _SAM_TC1_INSTANCE_ */
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100 #pragma weak AFEC0_Handler=Dummy_Handler
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101 #ifdef _SAM_DACC_INSTANCE_
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102 #pragma weak DACC_Handler=Dummy_Handler
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103 #endif /* _SAM_DACC_INSTANCE_ */
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104 #pragma weak PWM0_Handler=Dummy_Handler
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105 #pragma weak ICM_Handler=Dummy_Handler
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106 #pragma weak ACC_Handler=Dummy_Handler
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107 #pragma weak USBHS_Handler=Dummy_Handler
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108 #pragma weak CAN0_Handler=Dummy_Handler
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109 #pragma weak CAN1_Handler=Dummy_Handler
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110 #pragma weak GMAC_Handler=Dummy_Handler
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111 #pragma weak GMACQ1_Handler=Dummy_Handler
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112 #pragma weak GMACQ2_Handler=Dummy_Handler
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113 #pragma weak AFEC1_Handler=Dummy_Handler
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114 #ifdef _SAM_TWI2_INSTANCE_
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115 #pragma weak TWI2_Handler=Dummy_Handler
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116 #endif /* _SAM_TWI2_INSTANCE_ */
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117 #pragma weak SPI1_Handler=Dummy_Handler
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118 #pragma weak QSPI_Handler=Dummy_Handler
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119 #pragma weak UART2_Handler=Dummy_Handler
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120 #pragma weak UART3_Handler=Dummy_Handler
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121 #pragma weak UART4_Handler=Dummy_Handler
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122 #ifdef _SAM_TC2_INSTANCE_
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123 #pragma weak TC6_Handler=Dummy_Handler
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124 #endif /* _SAM_TC2_INSTANCE_ */
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125 #ifdef _SAM_TC2_INSTANCE_
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126 #pragma weak TC7_Handler=Dummy_Handler
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127 #endif /* _SAM_TC2_INSTANCE_ */
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128 #ifdef _SAM_TC2_INSTANCE_
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129 #pragma weak TC8_Handler=Dummy_Handler
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130 #endif /* _SAM_TC2_INSTANCE_ */
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131 #pragma weak TC9_Handler=Dummy_Handler
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132 #pragma weak TC10_Handler=Dummy_Handler
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133 #pragma weak TC11_Handler=Dummy_Handler
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134 #pragma weak MLB_Handler=Dummy_Handler
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135 #pragma weak AES_Handler=Dummy_Handler
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136 #pragma weak TRNG_Handler=Dummy_Handler
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137 #pragma weak XDMAC_Handler=Dummy_Handler
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138 #pragma weak ISI_Handler=Dummy_Handler
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139 #pragma weak PWM1_Handler=Dummy_Handler
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140 #pragma weak FPU_Handler=Dummy_Handler
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141 #ifdef _SAM_SDRAMC_INSTANCE_
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142 #pragma weak SDRAMC_Handler=Dummy_Handler
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143 #endif /* _SAM_SDRAMC_INSTANCE_ */
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144 #pragma weak WDT1_Handler=Dummy_Handler
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145 #pragma weak CCF_Handler=Dummy_Handler
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146 #pragma weak CCW_Handler=Dummy_Handler
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149 /* The name "__vector_table" has special meaning for C-SPY: */
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150 /* it is where the SP start value is found, and the NVIC vector */
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151 /* table register (VTOR) is initialized to this address if != 0 */
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152 #pragma arm section rodata = "vectors"
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153 const intvec_elem __vector_table[] =
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155 (intfunc)&Image$$ARM_LIB_STACK$$ZI$$Limit,
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161 UsageFault_Handler,
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162 (0UL), (0UL), (0UL), (0UL), /* Reserved */
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165 (0UL), /* Reserved */
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169 SUPC_Handler, /* 0 Supply Controller */
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170 RSTC_Handler, /* 1 Reset Controller */
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171 RTC_Handler, /* 2 Real Time Clock */
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172 RTT_Handler, /* 3 Real Time Timer */
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173 WDT0_Handler, /* 4 Watchdog Timer 0 */
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174 PMC_Handler, /* 5 Power Management Controller */
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175 EFC_Handler, /* 6 Enhanced Embedded Flash Controller */
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176 UART0_Handler, /* 7 UART 0 */
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177 UART1_Handler, /* 8 UART 1 */
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178 (0UL), /* 9 Reserved */
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179 PIOA_Handler, /* 10 Parallel I/O Controller A */
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180 PIOB_Handler, /* 11 Parallel I/O Controller B */
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181 PIOC_Handler, /* 12 Parallel I/O Controller C */
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182 USART0_Handler, /* 13 USART 0 */
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183 USART1_Handler, /* 14 USART 1 */
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184 USART2_Handler, /* 15 USART 2 */
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185 PIOD_Handler, /* 16 Parallel I/O Controller D */
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186 PIOE_Handler, /* 17 Parallel I/O Controller E */
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187 HSMCI_Handler, /* 18 Multimedia Card Interface */
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188 TWI0_Handler, /* 19 Two Wire Interface 0 HS */
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189 TWI1_Handler, /* 20 Two Wire Interface 1 HS */
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190 SPI0_Handler, /* 21 Serial Peripheral Interface 0 */
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191 SSC_Handler, /* 22 Synchronous Serial Controller */
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192 TC0_Handler, /* 23 Timer/Counter 0 */
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193 TC1_Handler, /* 24 Timer/Counter 1 */
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194 TC2_Handler, /* 25 Timer/Counter 2 */
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195 TC3_Handler, /* 26 Timer/Counter 3 */
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196 TC4_Handler, /* 27 Timer/Counter 4 */
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197 TC5_Handler, /* 28 Timer/Counter 5 */
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198 AFEC0_Handler, /* 29 Analog Front End 0 */
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199 DACC_Handler, /* 30 Digital To Analog Converter */
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200 PWM0_Handler, /* 31 Pulse Width Modulation 0 */
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201 ICM_Handler, /* 32 Integrity Check Monitor */
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202 ACC_Handler, /* 33 Analog Comparator */
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203 USBHS_Handler, /* 34 USB Host / Device Controller */
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204 CAN0_Handler, /* 35 CAN Controller 0 */
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205 (0UL), /* 36 Reserved */
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206 CAN1_Handler, /* 37 CAN Controller 1 */
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207 (0UL), /* 38 Reserved */
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208 GMAC_Handler, /* 39 Ethernet MAC */
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209 AFEC1_Handler, /* 40 Analog Front End 1 */
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210 TWI2_Handler, /* 41 Two Wire Interface 2 HS */
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211 SPI1_Handler, /* 42 Serial Peripheral Interface 1 */
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212 QSPI_Handler, /* 43 Quad I/O Serial Peripheral Interface */
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213 UART2_Handler, /* 44 UART 2 */
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214 UART3_Handler, /* 45 UART 3 */
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215 UART4_Handler, /* 46 UART 4 */
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216 TC6_Handler, /* 47 Timer/Counter 6 */
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217 TC7_Handler, /* 48 Timer/Counter 7 */
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218 TC8_Handler, /* 49 Timer/Counter 8 */
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219 TC9_Handler, /* 50 Timer/Counter 9 */
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220 TC10_Handler, /* 51 Timer/Counter 10 */
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221 TC11_Handler, /* 52 Timer/Counter 11 */
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222 MLB_Handler, /* 53 MediaLB */
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223 (0UL), /* 54 Reserved */
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224 (0UL), /* 55 Reserved */
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225 AES_Handler, /* 56 AES */
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226 TRNG_Handler, /* 57 True Random Generator */
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227 XDMAC_Handler, /* 58 DMA */
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228 ISI_Handler, /* 59 Camera Interface */
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229 PWM1_Handler, /* 60 Pulse Width Modulation 1 */
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230 FPU_Handler, /* 61 Floating Point Unit */
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231 SDRAMC_Handler, /* 62 SDRAM Controller */
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232 WDT1_Handler, /* 63 Watchdog Timer 1 */
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233 CCW_Handler, /* 64 ARM Cache ECC Warning */
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234 CCF_Handler, /* 65 ARM Cache ECC Fault */
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235 GMACQ1_Handler, /* 66 GMAC Queue 1 Handler */
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236 GMACQ2_Handler /* 67 GMAC Queue 2 Handler */
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238 #pragma arm section
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241 void LowLevelInit(void);
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242 /**------------------------------------------------------------------------------
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243 * This is the code that gets called on processor reset. To initialize the
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245 *------------------------------------------------------------------------------*/
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246 int __low_level_init(void)
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248 // uint32_t *pSrc = __section_begin(".intvec");
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250 // SCB->VTOR = ((uint32_t) pSrc & SCB_VTOR_TBLOFF_Msk);
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252 SCB_EnableICache();
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253 SCB_EnableDCache();
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257 return 1; /* if return 0, the data sections will not be initialized */
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260 /** \brief TCM memory enable
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262 The function enables TCM memories
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265 /* Correct errors in early version core_cm7.h */
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266 #undef SCB_ITCMCR_RETEN_Msk
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267 #undef SCB_ITCMCR_RMW_Msk
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268 #undef SCB_ITCMCR_EN_Msk
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269 #define SCB_ITCMCR_RETEN_Msk (0x1FFUL << SCB_ITCMCR_RETEN_Pos) /*!< SCB ITCMCR: RETEN Mask */
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270 #define SCB_ITCMCR_RMW_Msk (0x1FFUL << SCB_ITCMCR_RMW_Pos) /*!< SCB ITCMCR: RMW Mask */
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271 #define SCB_ITCMCR_EN_Msk (0x1FFUL << SCB_ITCMCR_EN_Pos) /*!< SCB ITCMCR: EN Mask */
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274 __STATIC_INLINE void TCM_Enable(void)
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279 SCB->ITCMCR = ( SCB_ITCMCR_EN_Msk | SCB_ITCMCR_RMW_Msk | SCB_ITCMCR_RETEN_Msk);
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280 SCB->DTCMCR = ( SCB_DTCMCR_EN_Msk | SCB_DTCMCR_RMW_Msk | SCB_DTCMCR_RETEN_Msk);
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285 /**------------------------------------------------------------------------------
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286 * This is the code that gets called on processor reset. To initialize the
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288 *------------------------------------------------------------------------------*/
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289 void Reset_Handler(void)
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291 uint32_t *pSrc = (uint32_t*)&Image$$Vector_region$$Base ;
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293 /* Low level Initialize */
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295 SCB->VTOR = ((uint32_t) pSrc & SCB_VTOR_TBLOFF_Msk);
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297 SCB_EnableICache();
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298 SCB_EnableDCache();
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300 /* Branch to main function */
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303 /* Will not execute, but removes warning about TCM_Enable() not being called. */
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304 ( void ) TCM_Enable;
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306 /* Infinite loop */
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311 * \brief Default interrupt handler for unused IRQs.
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313 void Dummy_Handler(void)
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319 void NMI_Handler(void)
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