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//*****************************************************************************
//
// Startup code for use with GNU tools.
//
//*****************************************************************************
//*****************************************************************************
//
// Forward declaration of the default fault handlers.
//
//*****************************************************************************
static void Reset_Handler(void);
static void Default_Handler(void);
//*****************************************************************************
//
// External declaration for the interrupt handler used by the application.
//
//*****************************************************************************
void NMI_Handler(void) __attribute__((weak, alias("Default_Handler")));
void HardFault_Handler(void) __attribute__((weak, alias("Default_Handler")));
void MemManage_Handler(void) __attribute__((weak, alias("Default_Handler")));
void BusFault_Handler(void) __attribute__((weak, alias("Default_Handler")));
void UsageFault_Handler(void) __attribute__((weak, alias("Default_Handler")));
void SVC_Handler(void) __attribute__((weak, alias("Default_Handler")));
void DebugMon_Handler(void) __attribute__((weak, alias("Default_Handler")));
void PendSV_Handler(void) __attribute__((weak, alias("Default_Handler")));
void SysTick_Handler(void) __attribute__((weak, alias("Default_Handler")));
void WDT_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void BOD_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void Reserved_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void DMA_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void GINT0_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void PIN_INT0_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void PIN_INT1_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void PIN_INT2_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void PIN_INT3_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void UTICK_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void MRT_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void CT32B0_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void CT32B1_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void CT32B2_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void CT32B3_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void CT32B4_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void SCT0_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void UART0_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void UART1_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void UART2_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void UART3_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void I2C0_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void I2C1_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void I2C2_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void SPI0_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void SPI1_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void ADC_SEQA_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void ADC_SEQB_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void ADC_THCMP_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void RTC_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
//void Reserved_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void MAILBOX_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void GINT1_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void PIN_INT4_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void PIN_INT5_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void PIN_INT6_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void PIN_INT7_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
//void Reserved_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
//void Reserved_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
//void Reserved_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void RIT_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void Reserved41_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void Reserved42_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void Reserved43_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
void Reserved44_IRQHandler(void) __attribute__((weak, alias("Default_Handler")));
//*****************************************************************************
//
// The entry point for the application.
//
//*****************************************************************************
extern int main(void);
//*****************************************************************************
//
// Reserve space for the system stack.
//
//*****************************************************************************
static unsigned long pulStack[512];
//*****************************************************************************
//
// The vector table. Note that the proper constructs must be placed on this to
// ensure that it ends up at physical address 0x0000.0000.
//
//*****************************************************************************
__attribute__ ((section(".isr_vector")))
void (* const g_pfnVectors[])(void) =
{
(void (*)(void))((unsigned long)pulStack + sizeof(pulStack)),
// The initial stack pointer
Reset_Handler, // Reset Handler
NMI_Handler, // NMI Handler
HardFault_Handler, // Hard Fault Handler
MemManage_Handler, // MPU Fault Handler
BusFault_Handler, // Bus Fault Handler
UsageFault_Handler, // Usage Fault Handler
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
SVC_Handler, // SVCall Handler
DebugMon_Handler, // Debug Monitor Handler
0, // Reserved
PendSV_Handler, // PendSV Handler
SysTick_Handler, // SysTick Handler
// External Interrupts
WDT_IRQHandler,
BOD_IRQHandler,
Reserved_IRQHandler,
DMA_IRQHandler,
GINT0_IRQHandler,
PIN_INT0_IRQHandler,
PIN_INT1_IRQHandler,
PIN_INT2_IRQHandler,
PIN_INT3_IRQHandler,
UTICK_IRQHandler,
MRT_IRQHandler,
CT32B0_IRQHandler,
CT32B1_IRQHandler,
CT32B2_IRQHandler,
CT32B3_IRQHandler,
CT32B4_IRQHandler,
SCT0_IRQHandler,
UART0_IRQHandler,
UART1_IRQHandler,
UART2_IRQHandler,
UART3_IRQHandler,
I2C0_IRQHandler,
I2C1_IRQHandler,
I2C2_IRQHandler,
SPI0_IRQHandler,
SPI1_IRQHandler,
ADC_SEQA_IRQHandler,
ADC_SEQB_IRQHandler,
ADC_THCMP_IRQHandler,
RTC_IRQHandler,
Reserved_IRQHandler,
MAILBOX_IRQHandler,
GINT1_IRQHandler,
PIN_INT4_IRQHandler,
PIN_INT5_IRQHandler,
PIN_INT6_IRQHandler,
PIN_INT7_IRQHandler,
Reserved_IRQHandler,
Reserved_IRQHandler,
Reserved_IRQHandler,
RIT_IRQHandler,
Reserved41_IRQHandler,
Reserved42_IRQHandler,
Reserved43_IRQHandler,
Reserved44_IRQHandler,
};
//**RIT_IRQHandler ***************************************************************************
// Reserved41_IRQHandler
// TReserved42_IRQHandler he following are constructs created by the linker, indicating where the
// tReserved43_IRQHandler he "data" and "bss" segments reside in memory. The initializers for the
// fReserved44_IRQHandler or the "data" segment resides immediately following the "text" segment.
//
//*****************************************************************************
extern unsigned long _etext;
extern unsigned long _data;
extern unsigned long _edata;
extern unsigned long _bss;
extern unsigned long _ebss;
//*****************************************************************************
//
// This is the code that gets called when the processor first starts execution
// following a reset event. Only the absolutely necessary set is performed,
// after which the application supplied entry() routine is called. Any fancy
// actions (such as making decisions based on the reset cause register, and
// resetting the bits in that register) are left solely in the hands of the
// application.
//
//*****************************************************************************
static void Reset_Handler(void)
{
unsigned long *pulSrc, *pulDest;
//
// Copy the data segment initializers from flash to SRAM.
//
pulSrc = &_etext;
for(pulDest = &_data; pulDest < &_edata; )
{
*pulDest++ = *pulSrc++;
}
#if !defined (__USE_LPCOPEN)
// LPCOpen init code deals with FP and VTOR initialisation
#if defined (__VFP_FP__) && !defined (__SOFTFP__)
/*
* Code to enable the Cortex-M4 FPU only included
* if appropriate build options have been selected.
* Code taken from Section 7.1, Cortex-M4 TRM (DDI0439C)
*/
// CPACR is located at address 0xE000ED88
asm("LDR.W R0, =0xE000ED88");
// Read CPACR
asm("LDR R1, [R0]");
// Set bits 20-23 to enable CP10 and CP11 coprocessors
asm(" ORR R1, R1, #(0xF << 20)");
// Write back the modified value to the CPACR
asm("STR R1, [R0]");
#endif // (__VFP_FP__) && !(__SOFTFP__)
// ******************************
// Check to see if we are running the code from a non-zero
// address (eg RAM, external flash), in which case we need
// to modify the VTOR register to tell the CPU that the
// vector table is located at a non-0x0 address.
// Note that we do not use the CMSIS register access mechanism,
// as there is no guarantee that the project has been configured
// to use CMSIS.
unsigned int * pSCB_VTOR = (unsigned int *) 0xE000ED08;
if ((unsigned int *) g_pfnVectors != (unsigned int *) 0x00000000) {
// CMSIS : SCB->VTOR = <address of vector table>
*pSCB_VTOR = (unsigned int) g_pfnVectors;
}
#endif
//
// Zero fill the bss segment.
//
__asm(" ldr r0, =_bss\n"
" ldr r1, =_ebss\n"
" mov r2, #0\n"
" .thumb_func\n"
"zero_loop:\n"
" cmp r0, r1\n"
" it lt\n"
" strlt r2, [r0], #4\n"
" blt zero_loop");
// call system init.
SystemInit();
//
// Call the application's entry point.
//
main();
}
//*****************************************************************************
//
// This is the code that gets called when the processor receives an unexpected
// interrupt. This simply enters an infinite loop, preserving the system state
// for examination by a debugger.
//
//*****************************************************************************
static void Default_Handler(void)
{
//
// Go into an infinite loop.
//
while(1)
{
}
}
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