1 //*****************************************************************************
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3 // startup.c - Boot code for Stellaris.
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5 // Copyright (c) 2005,2006 Luminary Micro, Inc. All rights reserved.
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7 // Software License Agreement
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9 // Luminary Micro, Inc. (LMI) is supplying this software for use solely and
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10 // exclusively on LMI's Stellaris Family of microcontroller products.
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12 // The software is owned by LMI and/or its suppliers, and is protected under
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13 // applicable copyright laws. All rights are reserved. Any use in violation
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14 // of the foregoing restrictions may subject the user to criminal sanctions
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15 // under applicable laws, as well as to civil liability for the breach of the
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16 // terms and conditions of this license.
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18 // THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
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19 // OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
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20 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
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21 // LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
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22 // CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
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24 // This is part of revision 635 of the Stellaris Driver Library.
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26 //*****************************************************************************
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28 //*****************************************************************************
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30 // Enable the IAR extensions for this source file.
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32 //*****************************************************************************
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33 #pragma language=extended
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35 //*****************************************************************************
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37 // Forward declaration of the default fault handlers.
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39 //*****************************************************************************
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40 static void NmiSR(void);
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41 static void FaultISR(void);
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42 static void IntDefaultHandler(void);
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44 //*****************************************************************************
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46 // External declaration for the interrupt handler used by the application.
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48 //*****************************************************************************
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49 extern void xPortPendSVHandler(void);
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50 extern void xPortSysTickHandler(void);
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51 extern void vUART_ISR( void );
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52 extern void vPortSVCHandler( void );
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54 //*****************************************************************************
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56 // The entry point for the application.
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58 //*****************************************************************************
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59 extern void __iar_program_start(void);
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61 //*****************************************************************************
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63 // Reserve space for the system stack.
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65 //*****************************************************************************
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67 #define STACK_SIZE 50
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69 static unsigned long pulStack[STACK_SIZE] @ ".noinit";
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70 //*****************************************************************************
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72 // A union that describes the entries of the vector table. The union is needed
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73 // since the first entry is the stack pointer and the remainder are function
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76 //*****************************************************************************
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79 void (*pfnHandler)(void);
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80 unsigned long ulPtr;
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84 //*****************************************************************************
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86 // The minimal vector table for a Cortex M3. Note that the proper constructs
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87 // must be placed on this to ensure that it ends up at physical address
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90 //*****************************************************************************
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91 __root const uVectorEntry __vector_table[] @ ".intvec" =
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93 { .ulPtr = (unsigned long)pulStack + sizeof(pulStack) },
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94 // The initial stack pointer
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95 __iar_program_start, // The reset handler
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96 NmiSR, // The NMI handler
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97 FaultISR, // The hard fault handler
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98 IntDefaultHandler, // The MPU fault handler
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99 IntDefaultHandler, // The bus fault handler
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100 IntDefaultHandler, // The usage fault handler
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105 vPortSVCHandler, // SVCall handler
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106 IntDefaultHandler, // Debug monitor handler
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108 xPortPendSVHandler, // The PendSV handler
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109 xPortSysTickHandler, // The SysTick handler
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110 IntDefaultHandler, // GPIO Port A
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111 IntDefaultHandler, // GPIO Port B
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112 IntDefaultHandler, // GPIO Port C
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113 IntDefaultHandler, // GPIO Port D
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114 IntDefaultHandler, // GPIO Port E
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115 vUART_ISR, // UART0 Rx and Tx
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116 IntDefaultHandler, // UART1 Rx and Tx
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117 IntDefaultHandler, // SSI Rx and Tx
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118 IntDefaultHandler, // I2C Master and Slave
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119 IntDefaultHandler, // PWM Fault
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120 IntDefaultHandler, // PWM Generator 0
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121 IntDefaultHandler, // PWM Generator 1
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122 IntDefaultHandler, // PWM Generator 2
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124 IntDefaultHandler, // ADC Sequence 0
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125 IntDefaultHandler, // ADC Sequence 1
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126 IntDefaultHandler, // ADC Sequence 2
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127 IntDefaultHandler, // ADC Sequence 3
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128 IntDefaultHandler, // Watchdog timer
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129 IntDefaultHandler, // Timer 0 subtimer A
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130 IntDefaultHandler, // Timer 0 subtimer B
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131 IntDefaultHandler, // Timer 1 subtimer A
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132 IntDefaultHandler, // Timer 1 subtimer B
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133 IntDefaultHandler, // Timer 2 subtimer A
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134 IntDefaultHandler, // Timer 2 subtimer B
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135 IntDefaultHandler, // Analog Comparator 0
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136 IntDefaultHandler, // Analog Comparator 1
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137 IntDefaultHandler, // Analog Comparator 2
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138 IntDefaultHandler, // System Control (PLL, OSC, BO)
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139 IntDefaultHandler // FLASH Control
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143 //*****************************************************************************
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145 // This is the code that gets called when the processor receives a NMI. This
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146 // simply enters an infinite loop, preserving the system state for examination
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149 //*****************************************************************************
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154 // Enter an infinite loop.
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161 //*****************************************************************************
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163 // This is the code that gets called when the processor receives a fault
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164 // interrupt. This simply enters an infinite loop, preserving the system state
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165 // for examination by a debugger.
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167 //*****************************************************************************
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172 // Enter an infinite loop.
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179 //*****************************************************************************
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181 // This is the code that gets called when the processor receives an unexpected
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182 // interrupt. This simply enters an infinite loop, preserving the system state
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183 // for examination by a debugger.
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185 //*****************************************************************************
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187 IntDefaultHandler(void)
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190 // Go into an infinite loop.
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