1 /****************************************************************************//**
2 * @file : startup_LPC17xx.c
3 * @brief : CMSIS Cortex-M3 Core Device Startup File
7 *----------------------------------------------------------------------------
9 * Copyright (C) 2009 ARM Limited. All rights reserved.
11 * ARM Limited (ARM) is supplying this software for use with Cortex-Mx
12 * processor based microcontrollers. This file can be freely distributed
13 * within development tools that are supporting such ARM based processors.
15 * THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
16 * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
17 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
18 * ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
19 * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
21 ******************************************************************************/
23 // Mod by nio for the .fastcode part
27 #define WEAK __attribute__ ((weak))
28 //*****************************************************************************
30 // Forward declaration of the default fault handlers.
32 //*****************************************************************************
33 /* System exception vector handler */
34 void WEAK Reset_Handler(void); /* Reset Handler */
35 void WEAK NMI_Handler(void); /* NMI Handler */
36 void WEAK HardFault_Handler(void); /* Hard Fault Handler */
37 void WEAK MemManage_Handler(void); /* MPU Fault Handler */
38 void WEAK BusFault_Handler(void); /* Bus Fault Handler */
39 void WEAK UsageFault_Handler(void); /* Usage Fault Handler */
40 void WEAK SVC_Handler(void); /* SVCall Handler */
41 void WEAK DebugMon_Handler(void); /* Debug Monitor Handler */
42 void WEAK PendSV_Handler(void); /* PendSV Handler */
43 void WEAK SysTick_Handler(void); /* SysTick Handler */
45 /* External interrupt vector handler */
46 void WEAK WDT_IRQHandler(void); /* Watchdog Timer */
47 void WEAK TIMER0_IRQHandler(void); /* Timer0 */
48 void WEAK TIMER1_IRQHandler(void); /* Timer1 */
49 void WEAK TIMER2_IRQHandler(void); /* Timer2 */
50 void WEAK TIMER3_IRQHandler(void); /* Timer3 */
51 void WEAK UART0_IRQHandler(void); /* UART0 */
52 void WEAK UART1_IRQHandler(void); /* UART1 */
53 void WEAK UART2_IRQHandler(void); /* UART2 */
54 void WEAK UART3_IRQHandler(void); /* UART3 */
55 void WEAK PWM1_IRQHandler(void); /* PWM1 */
56 void WEAK I2C0_IRQHandler(void); /* I2C0 */
57 void WEAK I2C1_IRQHandler(void); /* I2C1 */
58 void WEAK I2C2_IRQHandler(void); /* I2C2 */
59 void WEAK SPI_IRQHandler(void); /* SPI */
60 void WEAK SSP0_IRQHandler(void); /* SSP0 */
61 void WEAK SSP1_IRQHandler(void); /* SSP1 */
62 void WEAK PLL0_IRQHandler(void); /* PLL0 (Main PLL) */
63 void WEAK RTC_IRQHandler(void); /* Real Time Clock */
64 void WEAK EINT0_IRQHandler(void); /* External Interrupt 0 */
65 void WEAK EINT1_IRQHandler(void); /* External Interrupt 1 */
66 void WEAK EINT2_IRQHandler(void); /* External Interrupt 2 */
67 void WEAK EINT3_IRQHandler(void); /* External Interrupt 3 */
68 void WEAK ADC_IRQHandler(void); /* A/D Converter */
69 void WEAK BOD_IRQHandler(void); /* Brown Out Detect */
70 void WEAK USB_IRQHandler(void); /* USB */
71 void WEAK CAN_IRQHandler(void); /* CAN */
72 void WEAK DMA_IRQHandler(void); /* GP DMA */
73 void WEAK I2S_IRQHandler(void); /* I2S */
74 void WEAK ENET_IRQHandler(void); /* Ethernet */
75 void WEAK RIT_IRQHandler(void); /* Repetitive Interrupt Timer */
76 void WEAK MCPWM_IRQHandler(void); /* Motor Control PWM */
77 void WEAK QEI_IRQHandler(void); /* Quadrature Encoder Interface */
78 void WEAK PLL1_IRQHandler(void); /* PLL1 (USB PLL) */
82 /* Exported types --------------------------------------------------------------*/
83 /* Exported constants --------------------------------------------------------*/
84 extern unsigned long _etext;
85 extern unsigned long _sidata; /* start address for the initialization values of the .data section. defined in linker script */
86 extern unsigned long _sdata; /* start address for the .data section. defined in linker script */
87 extern unsigned long _edata; /* end address for the .data section. defined in linker script */
89 extern unsigned long _sifastcode; /* start address for the initialization values of the .fastcode section. defined in linker script */
90 extern unsigned long _sfastcode; /* start address for the .fastcode section. defined in linker script */
91 extern unsigned long _efastcode; /* end address for the .fastcode section. defined in linker script */
93 extern unsigned long _sbss; /* start address for the .bss section. defined in linker script */
94 extern unsigned long _ebss; /* end address for the .bss section. defined in linker script */
96 extern void _estack; /* init value for the stack pointer. defined in linker script */
98 extern void (_setup_board)(void); /* setup_board adress function */
99 extern unsigned long _mem_app_start;
103 /* Private typedef -----------------------------------------------------------*/
104 /* function prototypes ------------------------------------------------------*/
105 void Reset_Handler(void) __attribute__((__interrupt__));
106 extern int main(void);
108 typedef void (*FNC)(void);
111 /******************************************************************************
113 * The minimal vector table for a Cortex M3. Note that the proper constructs
114 * must be placed on this to ensure that it ends up at physical address
117 ******************************************************************************/
119 extern unsigned long _stack;
121 __attribute__ ((section(".isr_vector")))
122 void (* const g_pfnVectors[])(void) =
124 (void (*)(void))&_stack, /* The initial stack pointer */
125 Reset_Handler, /* Reset Handler */
126 NMI_Handler, /* NMI Handler */
127 HardFault_Handler, /* Hard Fault Handler */
128 MemManage_Handler, /* MPU Fault Handler */
129 BusFault_Handler, /* Bus Fault Handler */
130 UsageFault_Handler, /* Usage Fault Handler */
135 SVC_Handler, /* SVCall Handler */
136 DebugMon_Handler, /* Debug Monitor Handler */
138 PendSV_Handler, /* PendSV Handler */
139 SysTick_Handler, /* SysTick Handler */
141 // External Interrupts
142 WDT_IRQHandler, /* Watchdog Timer */
143 TIMER0_IRQHandler, /* Timer0 */
144 TIMER1_IRQHandler, /* Timer1 */
145 TIMER2_IRQHandler, /* Timer2 */
146 TIMER3_IRQHandler, /* Timer3 */
147 UART0_IRQHandler, /* UART0 */
148 UART1_IRQHandler, /* UART1 */
149 UART2_IRQHandler, /* UART2 */
150 UART3_IRQHandler, /* UART3 */
151 PWM1_IRQHandler, /* PWM1 */
152 I2C0_IRQHandler, /* I2C0 */
153 I2C1_IRQHandler, /* I2C1 */
154 I2C2_IRQHandler, /* I2C2 */
155 SPI_IRQHandler, /* SPI */
156 SSP0_IRQHandler, /* SSP0 */
157 SSP1_IRQHandler, /* SSP1 */
158 PLL0_IRQHandler, /* PLL0 (Main PLL) */
159 RTC_IRQHandler, /* Real Time Clock */
160 EINT0_IRQHandler, /* External Interrupt 0 */
161 EINT1_IRQHandler, /* External Interrupt 1 */
162 EINT2_IRQHandler, /* External Interrupt 2 */
163 EINT3_IRQHandler, /* External Interrupt 3 */
164 ADC_IRQHandler, /* A/D Converter */
165 BOD_IRQHandler, /* Brown Out Detect */
166 USB_IRQHandler, /* USB */
167 CAN_IRQHandler, /* CAN */
168 DMA_IRQHandler, /* GP DMA */
169 I2S_IRQHandler, /* I2S */
170 ENET_IRQHandler, /* Ethernet */
171 RIT_IRQHandler, /* Repetitive Interrupt Timer */
172 MCPWM_IRQHandler, /* Motor Control PWM */
173 QEI_IRQHandler, /* Quadrature Encoder Interface */
174 PLL1_IRQHandler, /* PLL1 (USB PLL) */
177 /*******************************************************************************
178 * Function Name : Reset_Handler
179 * Description : This is the code that gets called when the processor first starts execution
180 * following a reset event. Only the absolutely necessary set is performed,
181 * after which the application supplied main() routine is called.
185 *******************************************************************************/
187 void Reset_Handler(void)
189 unsigned long *pulDest;
190 unsigned long *pulSrc;
193 // Copy the data segment initializers from flash to SRAM in ROM mode
196 if (&_sidata != &_sdata) { // only if needed
198 for(pulDest = &_sdata; pulDest < &_edata; ) {
199 *(pulDest++) = *(pulSrc++);
203 // Copy the .fastcode code from ROM to SRAM
205 if (&_sifastcode != &_sfastcode) { // only if needed
206 pulSrc = &_sifastcode;
207 for(pulDest = &_sfastcode; pulDest < &_efastcode; ) {
208 *(pulDest++) = *(pulSrc++);
213 // Zero fill the bss segment.
215 for(pulDest = &_sbss; pulDest < &_ebss; )
222 SCB->VTOR=0x10000000;
224 //if (_setup_board!=0)
228 // Call the application's entry point.
232 /* disable interrupts */
233 NVIC->ICER[0] = 0xffffffff;
234 NVIC->ICER[1] = 0x00000007;
235 __set_MSP(*(unsigned long *)(&_mem_app_start)); /* Stack pointer */
236 fnc_entry = (FNC)*(unsigned long *)(&_mem_app_start+1); /* Reset handler */
240 //*****************************************************************************
242 // Provide weak aliases for each Exception handler to the Default_Handler.
243 // As they are weak aliases, any function with the same name will override
246 //*****************************************************************************
247 #pragma weak MemManage_Handler = Default_Handler /* MPU Fault Handler */
248 #pragma weak BusFault_Handler = Default_Handler /* Bus Fault Handler */
249 #pragma weak UsageFault_Handler = Default_Handler /* Usage Fault Handler */
250 #pragma weak SVC_Handler = Default_Handler /* SVCall Handler */
251 #pragma weak DebugMon_Handler = Default_Handler /* Debug Monitor Handler */
252 #pragma weak PendSV_Handler = Default_Handler /* PendSV Handler */
253 #pragma weak SysTick_Handler = Default_Handler /* SysTick Handler */
255 /* External interrupt vector handler */
256 #pragma weak WDT_IRQHandler = Default_Handler /* Watchdog Timer */
257 #pragma weak TIMER0_IRQHandler = Default_Handler /* Timer0 */
258 #pragma weak TIMER1_IRQHandler = Default_Handler /* Timer1 */
259 #pragma weak TIMER2_IRQHandler = Default_Handler /* Timer2 */
260 #pragma weak TIMER3_IRQHandler = Default_Handler /* Timer3 */
261 #pragma weak UART0_IRQHandler = Default_Handler /* UART0 */
262 #pragma weak UART1_IRQHandler = Default_Handler /* UART1 */
263 #pragma weak UART2_IRQHandler = Default_Handler /* UART2 */
264 #pragma weak UART3_IRQHandler = Default_Handler /* UART3 */
265 #pragma weak PWM1_IRQHandler = Default_Handler /* PWM1 */
266 #pragma weak I2C0_IRQHandler = Default_Handler /* I2C0 */
267 #pragma weak I2C1_IRQHandler = Default_Handler /* I2C1 */
268 #pragma weak I2C2_IRQHandler = Default_Handler /* I2C2 */
269 #pragma weak SPI_IRQHandler = Default_Handler /* SPI */
270 #pragma weak SSP0_IRQHandler = Default_Handler /* SSP0 */
271 #pragma weak SSP1_IRQHandler = Default_Handler /* SSP1 */
272 #pragma weak PLL0_IRQHandler = Default_Handler /* PLL0 (Main PLL) */
273 #pragma weak RTC_IRQHandler = Default_Handler /* Real Time Clock */
274 #pragma weak EINT0_IRQHandler = Default_Handler /* External Interrupt 0 */
275 #pragma weak EINT1_IRQHandler = Default_Handler /* External Interrupt 1 */
276 #pragma weak EINT2_IRQHandler = Default_Handler /* External Interrupt 2 */
277 #pragma weak EINT3_IRQHandler = Default_Handler /* External Interrupt 3 */
278 #pragma weak ADC_IRQHandler = Default_Handler /* A/D Converter */
279 #pragma weak BOD_IRQHandler = Default_Handler /* Brown Out Detect */
280 #pragma weak USB_IRQHandler = Default_Handler /* USB */
281 #pragma weak CAN_IRQHandler = Default_Handler /* CAN */
282 #pragma weak DMA_IRQHandler = Default_Handler /* GP DMA */
283 #pragma weak I2S_IRQHandler = Default_Handler /* I2S */
284 #pragma weak ENET_IRQHandler = Default_Handler /* Ethernet */
285 #pragma weak RIT_IRQHandler = Default_Handler /* Repetitive Interrupt Timer */
286 #pragma weak MCPWM_IRQHandler = Default_Handler /* Motor Control PWM */
287 #pragma weak QEI_IRQHandler = Default_Handler /* Quadrature Encoder Interface */
288 #pragma weak PLL1_IRQHandler = Default_Handler /* PLL1 (USB PLL) */
290 //*****************************************************************************
292 // This is the code that gets called when the processor receives an unexpected
293 // interrupt. This simply enters an infinite loop, preserving the system state
294 // for examination by a debugger.
296 //*****************************************************************************
297 void Default_Handler(void) {
298 // Go into an infinite loop.