Mouse code for the MacroRat
mbed-dev/targets/TARGET_NXP/TARGET_LPC82X/TARGET_LPC824/device/TOOLCHAIN_GCC_CR/startup_LPC824_CR.cpp@46:b156ef445742, 2017-06-03 (annotated)
- Committer:
- sahilmgandhi
- Date:
- Sat Jun 03 00:22:44 2017 +0000
- Revision:
- 46:b156ef445742
- Parent:
- 18:6a4db94011d3
Final code for internal battlebot competition.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sahilmgandhi | 18:6a4db94011d3 | 1 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 2 | // LPC82x Microcontroller Startup code for use with LPCXpresso IDE |
sahilmgandhi | 18:6a4db94011d3 | 3 | // |
sahilmgandhi | 18:6a4db94011d3 | 4 | // Version : 140901 |
sahilmgandhi | 18:6a4db94011d3 | 5 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 6 | // |
sahilmgandhi | 18:6a4db94011d3 | 7 | // Copyright(C) NXP Semiconductors, 2014 |
sahilmgandhi | 18:6a4db94011d3 | 8 | // All rights reserved. |
sahilmgandhi | 18:6a4db94011d3 | 9 | // |
sahilmgandhi | 18:6a4db94011d3 | 10 | // Software that is described herein is for illustrative purposes only |
sahilmgandhi | 18:6a4db94011d3 | 11 | // which provides customers with programming information regarding the |
sahilmgandhi | 18:6a4db94011d3 | 12 | // LPC products. This software is supplied "AS IS" without any warranties of |
sahilmgandhi | 18:6a4db94011d3 | 13 | // any kind, and NXP Semiconductors and its licensor disclaim any and |
sahilmgandhi | 18:6a4db94011d3 | 14 | // all warranties, express or implied, including all implied warranties of |
sahilmgandhi | 18:6a4db94011d3 | 15 | // merchantability, fitness for a particular purpose and non-infringement of |
sahilmgandhi | 18:6a4db94011d3 | 16 | // intellectual property rights. NXP Semiconductors assumes no responsibility |
sahilmgandhi | 18:6a4db94011d3 | 17 | // or liability for the use of the software, conveys no license or rights under any |
sahilmgandhi | 18:6a4db94011d3 | 18 | // patent, copyright, mask work right, or any other intellectual property rights in |
sahilmgandhi | 18:6a4db94011d3 | 19 | // or to any products. NXP Semiconductors reserves the right to make changes |
sahilmgandhi | 18:6a4db94011d3 | 20 | // in the software without notification. NXP Semiconductors also makes no |
sahilmgandhi | 18:6a4db94011d3 | 21 | // representation or warranty that such application will be suitable for the |
sahilmgandhi | 18:6a4db94011d3 | 22 | // specified use without further testing or modification. |
sahilmgandhi | 18:6a4db94011d3 | 23 | // |
sahilmgandhi | 18:6a4db94011d3 | 24 | // Permission to use, copy, modify, and distribute this software and its |
sahilmgandhi | 18:6a4db94011d3 | 25 | // documentation is hereby granted, under NXP Semiconductors' and its |
sahilmgandhi | 18:6a4db94011d3 | 26 | // licensor's relevant copyrights in the software, without fee, provided that it |
sahilmgandhi | 18:6a4db94011d3 | 27 | // is used in conjunction with NXP Semiconductors microcontrollers. This |
sahilmgandhi | 18:6a4db94011d3 | 28 | // copyright, permission, and disclaimer notice must appear in all copies of |
sahilmgandhi | 18:6a4db94011d3 | 29 | // this code. |
sahilmgandhi | 18:6a4db94011d3 | 30 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 31 | |
sahilmgandhi | 18:6a4db94011d3 | 32 | #if defined (__cplusplus) |
sahilmgandhi | 18:6a4db94011d3 | 33 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 34 | // |
sahilmgandhi | 18:6a4db94011d3 | 35 | // The entry point for the C++ library startup |
sahilmgandhi | 18:6a4db94011d3 | 36 | // |
sahilmgandhi | 18:6a4db94011d3 | 37 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 38 | extern "C" { |
sahilmgandhi | 18:6a4db94011d3 | 39 | extern void __libc_init_array(void); |
sahilmgandhi | 18:6a4db94011d3 | 40 | } |
sahilmgandhi | 18:6a4db94011d3 | 41 | #endif |
sahilmgandhi | 18:6a4db94011d3 | 42 | |
sahilmgandhi | 18:6a4db94011d3 | 43 | #define WEAK __attribute__ ((weak)) |
sahilmgandhi | 18:6a4db94011d3 | 44 | #define ALIAS(f) __attribute__ ((weak, alias (#f))) |
sahilmgandhi | 18:6a4db94011d3 | 45 | |
sahilmgandhi | 18:6a4db94011d3 | 46 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 47 | #if defined (__cplusplus) |
sahilmgandhi | 18:6a4db94011d3 | 48 | extern "C" { |
sahilmgandhi | 18:6a4db94011d3 | 49 | #endif |
sahilmgandhi | 18:6a4db94011d3 | 50 | |
sahilmgandhi | 18:6a4db94011d3 | 51 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 52 | // Declaration of external SystemInit function |
sahilmgandhi | 18:6a4db94011d3 | 53 | extern void SystemInit(void); |
sahilmgandhi | 18:6a4db94011d3 | 54 | |
sahilmgandhi | 18:6a4db94011d3 | 55 | // Patch the AEABI integer divide functions to use MCU's romdivide library |
sahilmgandhi | 18:6a4db94011d3 | 56 | #ifdef __USE_ROMDIVIDE |
sahilmgandhi | 18:6a4db94011d3 | 57 | // Location in memory that holds the address of the ROM Driver table |
sahilmgandhi | 18:6a4db94011d3 | 58 | #define PTR_ROM_DRIVER_TABLE ((unsigned int *)(0x1FFF1FF8)) |
sahilmgandhi | 18:6a4db94011d3 | 59 | // Variables to store addresses of idiv and udiv functions within MCU ROM |
sahilmgandhi | 18:6a4db94011d3 | 60 | unsigned int *pDivRom_idiv; |
sahilmgandhi | 18:6a4db94011d3 | 61 | unsigned int *pDivRom_uidiv; |
sahilmgandhi | 18:6a4db94011d3 | 62 | #endif |
sahilmgandhi | 18:6a4db94011d3 | 63 | |
sahilmgandhi | 18:6a4db94011d3 | 64 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 65 | // |
sahilmgandhi | 18:6a4db94011d3 | 66 | // Forward declaration of the default handlers. These are aliased. |
sahilmgandhi | 18:6a4db94011d3 | 67 | // When the application defines a handler (with the same name), this will |
sahilmgandhi | 18:6a4db94011d3 | 68 | // automatically take precedence over these weak definitions |
sahilmgandhi | 18:6a4db94011d3 | 69 | // |
sahilmgandhi | 18:6a4db94011d3 | 70 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 71 | void ResetISR(void); |
sahilmgandhi | 18:6a4db94011d3 | 72 | WEAK void NMI_Handler(void); |
sahilmgandhi | 18:6a4db94011d3 | 73 | WEAK void HardFault_Handler(void); |
sahilmgandhi | 18:6a4db94011d3 | 74 | WEAK void SVC_Handler(void); |
sahilmgandhi | 18:6a4db94011d3 | 75 | WEAK void PendSV_Handler(void); |
sahilmgandhi | 18:6a4db94011d3 | 76 | WEAK void SysTick_Handler(void); |
sahilmgandhi | 18:6a4db94011d3 | 77 | WEAK void IntDefaultHandler(void); |
sahilmgandhi | 18:6a4db94011d3 | 78 | |
sahilmgandhi | 18:6a4db94011d3 | 79 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 80 | // |
sahilmgandhi | 18:6a4db94011d3 | 81 | // Forward declaration of the specific IRQ handlers. These are aliased |
sahilmgandhi | 18:6a4db94011d3 | 82 | // to the IntDefaultHandler, which is a 'forever' loop. When the application |
sahilmgandhi | 18:6a4db94011d3 | 83 | // defines a handler (with the same name), this will automatically take |
sahilmgandhi | 18:6a4db94011d3 | 84 | // precedence over these weak definitions |
sahilmgandhi | 18:6a4db94011d3 | 85 | // |
sahilmgandhi | 18:6a4db94011d3 | 86 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 87 | void SPI0_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 88 | void SPI1_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 89 | void UART0_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 90 | void UART1_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 91 | void UART2_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 92 | void I2C1_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 93 | void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 94 | void SCT_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 95 | void MRT_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 96 | void CMP_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 97 | void WDT_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 98 | void BOD_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 99 | void FLASH_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 100 | void WKT_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 101 | void ADC_SEQA_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 102 | void ADC_SEQB_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 103 | void ADC_THCMP_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 104 | void ADC_OVR_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 105 | void DMA_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 106 | void I2C2_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 107 | void I2C3_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 108 | void PIN_INT0_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 109 | void PIN_INT1_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 110 | void PIN_INT2_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 111 | void PIN_INT3_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 112 | void PIN_INT4_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 113 | void PIN_INT5_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 114 | void PIN_INT6_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 115 | void PIN_INT7_IRQHandler(void) ALIAS(IntDefaultHandler); |
sahilmgandhi | 18:6a4db94011d3 | 116 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 117 | // |
sahilmgandhi | 18:6a4db94011d3 | 118 | // The entry point for the application. |
sahilmgandhi | 18:6a4db94011d3 | 119 | // main() is the entry point for Newlib based applications |
sahilmgandhi | 18:6a4db94011d3 | 120 | // |
sahilmgandhi | 18:6a4db94011d3 | 121 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 122 | extern int main(void); |
sahilmgandhi | 18:6a4db94011d3 | 123 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 124 | // |
sahilmgandhi | 18:6a4db94011d3 | 125 | // External declaration for the pointer to the stack top from the Linker Script |
sahilmgandhi | 18:6a4db94011d3 | 126 | // |
sahilmgandhi | 18:6a4db94011d3 | 127 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 128 | extern void _vStackTop(void); |
sahilmgandhi | 18:6a4db94011d3 | 129 | |
sahilmgandhi | 18:6a4db94011d3 | 130 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 131 | #if defined (__cplusplus) |
sahilmgandhi | 18:6a4db94011d3 | 132 | } // extern "C" |
sahilmgandhi | 18:6a4db94011d3 | 133 | #endif |
sahilmgandhi | 18:6a4db94011d3 | 134 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 135 | // |
sahilmgandhi | 18:6a4db94011d3 | 136 | // The vector table. |
sahilmgandhi | 18:6a4db94011d3 | 137 | // This relies on the linker script to place at correct location in memory. |
sahilmgandhi | 18:6a4db94011d3 | 138 | // |
sahilmgandhi | 18:6a4db94011d3 | 139 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 140 | extern void (* const g_pfnVectors[])(void); |
sahilmgandhi | 18:6a4db94011d3 | 141 | __attribute__ ((section(".isr_vector"))) |
sahilmgandhi | 18:6a4db94011d3 | 142 | void (* const g_pfnVectors[])(void) = { |
sahilmgandhi | 18:6a4db94011d3 | 143 | // Core Level - CM0plus |
sahilmgandhi | 18:6a4db94011d3 | 144 | &_vStackTop, // The initial stack pointer |
sahilmgandhi | 18:6a4db94011d3 | 145 | ResetISR, // The reset handler |
sahilmgandhi | 18:6a4db94011d3 | 146 | NMI_Handler, // The NMI handler |
sahilmgandhi | 18:6a4db94011d3 | 147 | HardFault_Handler, // The hard fault handler |
sahilmgandhi | 18:6a4db94011d3 | 148 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 149 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 150 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 151 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 152 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 153 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 154 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 155 | SVC_Handler, // SVCall handler |
sahilmgandhi | 18:6a4db94011d3 | 156 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 157 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 158 | PendSV_Handler, // The PendSV handler |
sahilmgandhi | 18:6a4db94011d3 | 159 | SysTick_Handler, // The SysTick handler |
sahilmgandhi | 18:6a4db94011d3 | 160 | |
sahilmgandhi | 18:6a4db94011d3 | 161 | // Chip Level - LPC82x |
sahilmgandhi | 18:6a4db94011d3 | 162 | SPI0_IRQHandler, // SPI0 controller |
sahilmgandhi | 18:6a4db94011d3 | 163 | SPI1_IRQHandler, // SPI1 controller |
sahilmgandhi | 18:6a4db94011d3 | 164 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 165 | UART0_IRQHandler, // UART0 |
sahilmgandhi | 18:6a4db94011d3 | 166 | UART1_IRQHandler, // UART1 |
sahilmgandhi | 18:6a4db94011d3 | 167 | UART2_IRQHandler, // UART2 |
sahilmgandhi | 18:6a4db94011d3 | 168 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 169 | I2C1_IRQHandler, // I2C1 controller |
sahilmgandhi | 18:6a4db94011d3 | 170 | I2C0_IRQHandler, // I2C0 controller |
sahilmgandhi | 18:6a4db94011d3 | 171 | SCT_IRQHandler, // Smart Counter Timer |
sahilmgandhi | 18:6a4db94011d3 | 172 | MRT_IRQHandler, // Multi-Rate Timer |
sahilmgandhi | 18:6a4db94011d3 | 173 | CMP_IRQHandler, // Comparator |
sahilmgandhi | 18:6a4db94011d3 | 174 | WDT_IRQHandler, // Watchdog |
sahilmgandhi | 18:6a4db94011d3 | 175 | BOD_IRQHandler, // Brown Out Detect |
sahilmgandhi | 18:6a4db94011d3 | 176 | FLASH_IRQHandler, // Flash Interrupt |
sahilmgandhi | 18:6a4db94011d3 | 177 | WKT_IRQHandler, // Wakeup timer |
sahilmgandhi | 18:6a4db94011d3 | 178 | ADC_SEQA_IRQHandler, // ADC sequence A completion |
sahilmgandhi | 18:6a4db94011d3 | 179 | ADC_SEQB_IRQHandler, // ADC sequence B completion |
sahilmgandhi | 18:6a4db94011d3 | 180 | ADC_THCMP_IRQHandler, // ADC threshold compare |
sahilmgandhi | 18:6a4db94011d3 | 181 | ADC_OVR_IRQHandler, // ADC overrun |
sahilmgandhi | 18:6a4db94011d3 | 182 | DMA_IRQHandler, // DMA |
sahilmgandhi | 18:6a4db94011d3 | 183 | I2C2_IRQHandler, // I2C2 controller |
sahilmgandhi | 18:6a4db94011d3 | 184 | I2C3_IRQHandler, // I2C3 controller |
sahilmgandhi | 18:6a4db94011d3 | 185 | 0, // Reserved |
sahilmgandhi | 18:6a4db94011d3 | 186 | PIN_INT0_IRQHandler, // PIO INT0 |
sahilmgandhi | 18:6a4db94011d3 | 187 | PIN_INT1_IRQHandler, // PIO INT1 |
sahilmgandhi | 18:6a4db94011d3 | 188 | PIN_INT2_IRQHandler, // PIO INT2 |
sahilmgandhi | 18:6a4db94011d3 | 189 | PIN_INT3_IRQHandler, // PIO INT3 |
sahilmgandhi | 18:6a4db94011d3 | 190 | PIN_INT4_IRQHandler, // PIO INT4 |
sahilmgandhi | 18:6a4db94011d3 | 191 | PIN_INT5_IRQHandler, // PIO INT5 |
sahilmgandhi | 18:6a4db94011d3 | 192 | PIN_INT6_IRQHandler, // PIO INT6 |
sahilmgandhi | 18:6a4db94011d3 | 193 | PIN_INT7_IRQHandler, // PIO INT7 |
sahilmgandhi | 18:6a4db94011d3 | 194 | }; /* End of g_pfnVectors */ |
sahilmgandhi | 18:6a4db94011d3 | 195 | |
sahilmgandhi | 18:6a4db94011d3 | 196 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 197 | // Functions to carry out the initialization of RW and BSS data sections. These |
sahilmgandhi | 18:6a4db94011d3 | 198 | // are written as separate functions rather than being inlined within the |
sahilmgandhi | 18:6a4db94011d3 | 199 | // ResetISR() function in order to cope with MCUs with multiple banks of |
sahilmgandhi | 18:6a4db94011d3 | 200 | // memory. |
sahilmgandhi | 18:6a4db94011d3 | 201 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 202 | __attribute__ ((section(".after_vectors"))) |
sahilmgandhi | 18:6a4db94011d3 | 203 | void data_init(unsigned int romstart, unsigned int start, unsigned int len) { |
sahilmgandhi | 18:6a4db94011d3 | 204 | unsigned int *pulDest = (unsigned int*) start; |
sahilmgandhi | 18:6a4db94011d3 | 205 | unsigned int *pulSrc = (unsigned int*) romstart; |
sahilmgandhi | 18:6a4db94011d3 | 206 | unsigned int loop; |
sahilmgandhi | 18:6a4db94011d3 | 207 | for (loop = 0; loop < len; loop = loop + 4) |
sahilmgandhi | 18:6a4db94011d3 | 208 | *pulDest++ = *pulSrc++; |
sahilmgandhi | 18:6a4db94011d3 | 209 | } |
sahilmgandhi | 18:6a4db94011d3 | 210 | |
sahilmgandhi | 18:6a4db94011d3 | 211 | __attribute__ ((section(".after_vectors"))) |
sahilmgandhi | 18:6a4db94011d3 | 212 | void bss_init(unsigned int start, unsigned int len) { |
sahilmgandhi | 18:6a4db94011d3 | 213 | unsigned int *pulDest = (unsigned int*) start; |
sahilmgandhi | 18:6a4db94011d3 | 214 | unsigned int loop; |
sahilmgandhi | 18:6a4db94011d3 | 215 | for (loop = 0; loop < len; loop = loop + 4) |
sahilmgandhi | 18:6a4db94011d3 | 216 | *pulDest++ = 0; |
sahilmgandhi | 18:6a4db94011d3 | 217 | } |
sahilmgandhi | 18:6a4db94011d3 | 218 | |
sahilmgandhi | 18:6a4db94011d3 | 219 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 220 | // The following symbols are constructs generated by the linker, indicating |
sahilmgandhi | 18:6a4db94011d3 | 221 | // the location of various points in the "Global Section Table". This table is |
sahilmgandhi | 18:6a4db94011d3 | 222 | // created by the linker via the Code Red managed linker script mechanism. It |
sahilmgandhi | 18:6a4db94011d3 | 223 | // contains the load address, execution address and length of each RW data |
sahilmgandhi | 18:6a4db94011d3 | 224 | // section and the execution and length of each BSS (zero initialized) section. |
sahilmgandhi | 18:6a4db94011d3 | 225 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 226 | extern unsigned int __data_section_table; |
sahilmgandhi | 18:6a4db94011d3 | 227 | extern unsigned int __data_section_table_end; |
sahilmgandhi | 18:6a4db94011d3 | 228 | extern unsigned int __bss_section_table; |
sahilmgandhi | 18:6a4db94011d3 | 229 | extern unsigned int __bss_section_table_end; |
sahilmgandhi | 18:6a4db94011d3 | 230 | |
sahilmgandhi | 18:6a4db94011d3 | 231 | |
sahilmgandhi | 18:6a4db94011d3 | 232 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 233 | // Reset entry point for your code. |
sahilmgandhi | 18:6a4db94011d3 | 234 | // Sets up a simple runtime environment and initializes the C/C++ |
sahilmgandhi | 18:6a4db94011d3 | 235 | // library. |
sahilmgandhi | 18:6a4db94011d3 | 236 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 237 | __attribute__ ((section(".after_vectors"))) |
sahilmgandhi | 18:6a4db94011d3 | 238 | void |
sahilmgandhi | 18:6a4db94011d3 | 239 | ResetISR(void) { |
sahilmgandhi | 18:6a4db94011d3 | 240 | |
sahilmgandhi | 18:6a4db94011d3 | 241 | // |
sahilmgandhi | 18:6a4db94011d3 | 242 | // Copy the data sections from flash to SRAM. |
sahilmgandhi | 18:6a4db94011d3 | 243 | // |
sahilmgandhi | 18:6a4db94011d3 | 244 | unsigned int LoadAddr, ExeAddr, SectionLen; |
sahilmgandhi | 18:6a4db94011d3 | 245 | unsigned int *SectionTableAddr; |
sahilmgandhi | 18:6a4db94011d3 | 246 | |
sahilmgandhi | 18:6a4db94011d3 | 247 | // Load base address of Global Section Table |
sahilmgandhi | 18:6a4db94011d3 | 248 | SectionTableAddr = &__data_section_table; |
sahilmgandhi | 18:6a4db94011d3 | 249 | |
sahilmgandhi | 18:6a4db94011d3 | 250 | // Copy the data sections from flash to SRAM. |
sahilmgandhi | 18:6a4db94011d3 | 251 | while (SectionTableAddr < &__data_section_table_end) { |
sahilmgandhi | 18:6a4db94011d3 | 252 | LoadAddr = *SectionTableAddr++; |
sahilmgandhi | 18:6a4db94011d3 | 253 | ExeAddr = *SectionTableAddr++; |
sahilmgandhi | 18:6a4db94011d3 | 254 | SectionLen = *SectionTableAddr++; |
sahilmgandhi | 18:6a4db94011d3 | 255 | data_init(LoadAddr, ExeAddr, SectionLen); |
sahilmgandhi | 18:6a4db94011d3 | 256 | } |
sahilmgandhi | 18:6a4db94011d3 | 257 | // At this point, SectionTableAddr = &__bss_section_table; |
sahilmgandhi | 18:6a4db94011d3 | 258 | // Zero fill the bss segment |
sahilmgandhi | 18:6a4db94011d3 | 259 | while (SectionTableAddr < &__bss_section_table_end) { |
sahilmgandhi | 18:6a4db94011d3 | 260 | ExeAddr = *SectionTableAddr++; |
sahilmgandhi | 18:6a4db94011d3 | 261 | SectionLen = *SectionTableAddr++; |
sahilmgandhi | 18:6a4db94011d3 | 262 | bss_init(ExeAddr, SectionLen); |
sahilmgandhi | 18:6a4db94011d3 | 263 | } |
sahilmgandhi | 18:6a4db94011d3 | 264 | |
sahilmgandhi | 18:6a4db94011d3 | 265 | // Patch the AEABI integer divide functions to use MCU's romdivide library |
sahilmgandhi | 18:6a4db94011d3 | 266 | #ifdef __USE_ROMDIVIDE |
sahilmgandhi | 18:6a4db94011d3 | 267 | // Get address of Integer division routines function table in ROM |
sahilmgandhi | 18:6a4db94011d3 | 268 | unsigned int *div_ptr = (unsigned int *)((unsigned int *)*(PTR_ROM_DRIVER_TABLE))[4]; |
sahilmgandhi | 18:6a4db94011d3 | 269 | // Get addresses of integer divide routines in ROM |
sahilmgandhi | 18:6a4db94011d3 | 270 | // These address are then used by the code in aeabi_romdiv_patch.s |
sahilmgandhi | 18:6a4db94011d3 | 271 | pDivRom_idiv = (unsigned int *)div_ptr[0]; |
sahilmgandhi | 18:6a4db94011d3 | 272 | pDivRom_uidiv = (unsigned int *)div_ptr[1]; |
sahilmgandhi | 18:6a4db94011d3 | 273 | #endif |
sahilmgandhi | 18:6a4db94011d3 | 274 | |
sahilmgandhi | 18:6a4db94011d3 | 275 | SystemInit(); |
sahilmgandhi | 18:6a4db94011d3 | 276 | |
sahilmgandhi | 18:6a4db94011d3 | 277 | #if defined (__cplusplus) |
sahilmgandhi | 18:6a4db94011d3 | 278 | // |
sahilmgandhi | 18:6a4db94011d3 | 279 | // Call C++ library initialisation |
sahilmgandhi | 18:6a4db94011d3 | 280 | // |
sahilmgandhi | 18:6a4db94011d3 | 281 | __libc_init_array(); |
sahilmgandhi | 18:6a4db94011d3 | 282 | #endif |
sahilmgandhi | 18:6a4db94011d3 | 283 | |
sahilmgandhi | 18:6a4db94011d3 | 284 | main(); |
sahilmgandhi | 18:6a4db94011d3 | 285 | |
sahilmgandhi | 18:6a4db94011d3 | 286 | // |
sahilmgandhi | 18:6a4db94011d3 | 287 | // main() shouldn't return, but if it does, we'll just enter an infinite loop |
sahilmgandhi | 18:6a4db94011d3 | 288 | // |
sahilmgandhi | 18:6a4db94011d3 | 289 | while (1) { |
sahilmgandhi | 18:6a4db94011d3 | 290 | ; |
sahilmgandhi | 18:6a4db94011d3 | 291 | } |
sahilmgandhi | 18:6a4db94011d3 | 292 | } |
sahilmgandhi | 18:6a4db94011d3 | 293 | |
sahilmgandhi | 18:6a4db94011d3 | 294 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 295 | // Default exception handlers. Override the ones here by defining your own |
sahilmgandhi | 18:6a4db94011d3 | 296 | // handler routines in your application code. |
sahilmgandhi | 18:6a4db94011d3 | 297 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 298 | __attribute__ ((section(".after_vectors"))) |
sahilmgandhi | 18:6a4db94011d3 | 299 | void NMI_Handler(void) |
sahilmgandhi | 18:6a4db94011d3 | 300 | { while(1) {} |
sahilmgandhi | 18:6a4db94011d3 | 301 | } |
sahilmgandhi | 18:6a4db94011d3 | 302 | |
sahilmgandhi | 18:6a4db94011d3 | 303 | __attribute__ ((section(".after_vectors"))) |
sahilmgandhi | 18:6a4db94011d3 | 304 | void HardFault_Handler(void) |
sahilmgandhi | 18:6a4db94011d3 | 305 | { while(1) {} |
sahilmgandhi | 18:6a4db94011d3 | 306 | } |
sahilmgandhi | 18:6a4db94011d3 | 307 | |
sahilmgandhi | 18:6a4db94011d3 | 308 | __attribute__ ((section(".after_vectors"))) |
sahilmgandhi | 18:6a4db94011d3 | 309 | void SVC_Handler(void) |
sahilmgandhi | 18:6a4db94011d3 | 310 | { while(1) {} |
sahilmgandhi | 18:6a4db94011d3 | 311 | } |
sahilmgandhi | 18:6a4db94011d3 | 312 | |
sahilmgandhi | 18:6a4db94011d3 | 313 | __attribute__ ((section(".after_vectors"))) |
sahilmgandhi | 18:6a4db94011d3 | 314 | void PendSV_Handler(void) |
sahilmgandhi | 18:6a4db94011d3 | 315 | { while(1) {} |
sahilmgandhi | 18:6a4db94011d3 | 316 | } |
sahilmgandhi | 18:6a4db94011d3 | 317 | |
sahilmgandhi | 18:6a4db94011d3 | 318 | __attribute__ ((section(".after_vectors"))) |
sahilmgandhi | 18:6a4db94011d3 | 319 | void SysTick_Handler(void) |
sahilmgandhi | 18:6a4db94011d3 | 320 | { while(1) {} |
sahilmgandhi | 18:6a4db94011d3 | 321 | } |
sahilmgandhi | 18:6a4db94011d3 | 322 | |
sahilmgandhi | 18:6a4db94011d3 | 323 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 324 | // |
sahilmgandhi | 18:6a4db94011d3 | 325 | // Processor ends up here if an unexpected interrupt occurs or a specific |
sahilmgandhi | 18:6a4db94011d3 | 326 | // handler is not present in the application code. |
sahilmgandhi | 18:6a4db94011d3 | 327 | // |
sahilmgandhi | 18:6a4db94011d3 | 328 | //***************************************************************************** |
sahilmgandhi | 18:6a4db94011d3 | 329 | __attribute__ ((section(".after_vectors"))) |
sahilmgandhi | 18:6a4db94011d3 | 330 | void IntDefaultHandler(void) |
sahilmgandhi | 18:6a4db94011d3 | 331 | { while(1) {} |
sahilmgandhi | 18:6a4db94011d3 | 332 | } |
sahilmgandhi | 18:6a4db94011d3 | 333 |