506 lines
22 KiB
C
506 lines
22 KiB
C
//*****************************************************************************
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// LPC15xx Microcontroller Startup code for use with LPCXpresso IDE
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//
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// Version : 150305
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//*****************************************************************************
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//
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// Copyright(C) NXP Semiconductors, 2014-15
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// All rights reserved.
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//
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// Software that is described herein is for illustrative purposes only
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// which provides customers with programming information regarding the
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// LPC products. This software is supplied "AS IS" without any warranties of
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// any kind, and NXP Semiconductors and its licensor disclaim any and
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// all warranties, express or implied, including all implied warranties of
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// merchantability, fitness for a particular purpose and non-infringement of
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// intellectual property rights. NXP Semiconductors assumes no responsibility
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// or liability for the use of the software, conveys no license or rights under any
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// patent, copyright, mask work right, or any other intellectual property rights in
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// or to any products. NXP Semiconductors reserves the right to make changes
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// in the software without notification. NXP Semiconductors also makes no
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// representation or warranty that such application will be suitable for the
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// specified use without further testing or modification.
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//
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// Permission to use, copy, modify, and distribute this software and its
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// documentation is hereby granted, under NXP Semiconductors' and its
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// licensor's relevant copyrights in the software, without fee, provided that it
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// is used in conjunction with NXP Semiconductors microcontrollers. This
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// copyright, permission, and disclaimer notice must appear in all copies of
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// this code.
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//*****************************************************************************
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#if defined (__cplusplus)
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#ifdef __REDLIB__
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#error Redlib does not support C++
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#else
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//*****************************************************************************
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//
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// The entry point for the C++ library startup
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//
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//*****************************************************************************
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extern "C" {
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extern void __libc_init_array(void);
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}
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#endif
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#endif
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#define WEAK __attribute__ ((weak))
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#define ALIAS(f) __attribute__ ((weak, alias (#f)))
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//*****************************************************************************
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#if defined (__cplusplus)
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extern "C" {
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#endif
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//*****************************************************************************
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#if defined (__USE_CMSIS) || defined (__USE_LPCOPEN)
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// Declaration of external SystemInit function
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extern void SystemInit(void);
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#endif
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//*****************************************************************************
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//
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// Forward declaration of the default handlers. These are aliased.
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// When the application defines a handler (with the same name), this will
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// automatically take precedence over these weak definitions
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//
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//*****************************************************************************
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void ResetISR(void);
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WEAK void NMI_Handler(void);
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WEAK void HardFault_Handler(void);
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WEAK void MemManage_Handler(void);
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WEAK void BusFault_Handler(void);
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WEAK void UsageFault_Handler(void);
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WEAK void SVC_Handler(void);
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WEAK void DebugMon_Handler(void);
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WEAK void PendSV_Handler(void);
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WEAK void SysTick_Handler(void);
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WEAK void IntDefaultHandler(void);
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//*****************************************************************************
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//
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// Forward declaration of the specific IRQ handlers. These are aliased
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// to the IntDefaultHandler, which is a 'forever' loop. When the application
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// defines a handler (with the same name), this will automatically take
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// precedence over these weak definitions
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//
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//*****************************************************************************
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// Note: The names used for the IRQ Handlers in the LPCXpresso LPC15xx startup
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// code did not originally match those used by the LPCOpen LPC15xx packages.
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// Now default to using LPCOpen IRQ Handler names. But allow the use of the
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// previous names if necessary for legacy code by undefining the below symbol
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#define USE_LPCOPEN_IRQHANDLER_NAMES
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#if defined (USE_LPCOPEN_IRQHANDLER_NAMES)
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void WDT_IRQHandler(void) ALIAS(IntDefaultHandler);
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void BOD_IRQHandler(void) ALIAS(IntDefaultHandler);
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void FMC_IRQHandler(void) ALIAS(IntDefaultHandler);
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void EEPROM_IRQHandler(void) ALIAS(IntDefaultHandler);
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void DMA_IRQHandler(void) ALIAS(IntDefaultHandler);
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void GINT0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void GINT1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT2_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT3_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT4_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT5_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT6_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT7_IRQHandler(void) ALIAS(IntDefaultHandler);
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void RIT_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SCT0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SCT1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SCT2_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SCT3_IRQHandler(void) ALIAS(IntDefaultHandler);
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void MRT_IRQHandler(void) ALIAS(IntDefaultHandler);
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void UART0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void UART1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void UART2_IRQHandler(void) ALIAS(IntDefaultHandler);
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void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SPI0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SPI1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CAN_IRQHandler(void) ALIAS(IntDefaultHandler);
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void USB_IRQHandler(void) ALIAS(IntDefaultHandler);
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void USB_FIQHandler(void) ALIAS(IntDefaultHandler);
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void USBWakeup_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC0A_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC0B_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC0_THCMP_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC0_OVR_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC1A_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC1B_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC1_THCMP_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC1_OVR_IRQHandler(void) ALIAS(IntDefaultHandler);
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void DAC_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ACMP0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ACMP1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ACMP2_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ACMP3_IRQHandler(void) ALIAS(IntDefaultHandler);
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void QEI_IRQHandler(void) ALIAS(IntDefaultHandler);
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void RTC_ALARM_IRQHandler(void) ALIAS(IntDefaultHandler);
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void RTC_WAKE_IRQHandler(void) ALIAS(IntDefaultHandler);
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#else
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void WDT_IRQHandler(void) ALIAS(IntDefaultHandler);
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void BOD_IRQHandler(void) ALIAS(IntDefaultHandler);
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void FLASH_IRQHandler(void) ALIAS(IntDefaultHandler);
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void EEPROM_IRQHandler(void) ALIAS(IntDefaultHandler);
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void DMA_IRQHandler(void) ALIAS(IntDefaultHandler);
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void GINT0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void GINT1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PININT0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PININT1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PININT2_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PININT3_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PININT4_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PININT5_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PININT6_IRQHandler(void) ALIAS(IntDefaultHandler);
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void PININT7_IRQHandler(void) ALIAS(IntDefaultHandler);
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void RIT_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SCT0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SCT1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SCT2_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SCT3_IRQHandler(void) ALIAS(IntDefaultHandler);
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void MRT_IRQHandler(void) ALIAS(IntDefaultHandler);
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void UART0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void UART1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void UART2_IRQHandler(void) ALIAS(IntDefaultHandler);
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void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SPI0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void SPI1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CAN0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void USB_IRQHandler(void) ALIAS(IntDefaultHandler);
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void USB_FIQHandler(void) ALIAS(IntDefaultHandler);
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void USBWakeup_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC0_SEQA_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC0_SEQB_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC0_THCMP_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC0_OVR_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC1_SEQA_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC1_SEQB_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC1_THCMP_IRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC1_OVR_IRQHandler(void) ALIAS(IntDefaultHandler);
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void DAC_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CMP0_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CMP1_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CMP2_IRQHandler(void) ALIAS(IntDefaultHandler);
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void CMP3_IRQHandler(void) ALIAS(IntDefaultHandler);
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void QEI_IRQHandler(void) ALIAS(IntDefaultHandler);
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void RTC_ALARM_IRQHandler(void) ALIAS(IntDefaultHandler);
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void RTC_WAKE_IRQHandler(void) ALIAS(IntDefaultHandler);
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#endif
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//*****************************************************************************
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//
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// The entry point for the application.
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// __main() is the entry point for Redlib based applications
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// main() is the entry point for Newlib based applications
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//
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//*****************************************************************************
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#if defined (__REDLIB__)
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extern void __main(void);
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#endif
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extern int main(void);
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//*****************************************************************************
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//
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// External declaration for the pointer to the stack top from the Linker Script
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//
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//*****************************************************************************
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extern void _vStackTop(void);
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//*****************************************************************************
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#if defined (__cplusplus)
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} // extern "C"
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#endif
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//*****************************************************************************
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//
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// The vector table.
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// This relies on the linker script to place at correct location in memory.
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//
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//*****************************************************************************
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extern void (* const g_pfnVectors[])(void);
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__attribute__ ((used,section(".isr_vector")))
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void (* const g_pfnVectors[])(void) = {
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// Core Level - CM3
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&_vStackTop, // The initial stack pointer
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ResetISR, // The reset handler
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NMI_Handler, // The NMI handler
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HardFault_Handler, // The hard fault handler
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MemManage_Handler, // The MPU fault handler
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BusFault_Handler, // The bus fault handler
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UsageFault_Handler, // The usage fault handler
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0, // Reserved
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0, // Reserved
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0, // Reserved
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0, // Reserved
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SVC_Handler, // SVCall handler
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DebugMon_Handler, // Debug monitor handler
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0, // Reserved
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PendSV_Handler, // The PendSV handler
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SysTick_Handler, // The SysTick handler
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// Chip Level - LPC15xx
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#if defined (USE_LPCOPEN_IRQHANDLER_NAMES)
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WDT_IRQHandler, // 0 - Windowed watchdog timer
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BOD_IRQHandler, // 1 - BOD
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FMC_IRQHandler, // 2 - Flash controller
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EEPROM_IRQHandler, // 3 - EEPROM controller
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DMA_IRQHandler, // 4 - DMA
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GINT0_IRQHandler, // 5 - GINT0
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GINT1_IRQHandler, // 6 - GINT1
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PIN_INT0_IRQHandler, // 7 - PIO INT0
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PIN_INT1_IRQHandler, // 8 - PIO INT1
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PIN_INT2_IRQHandler, // 9 - PIO INT2
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PIN_INT3_IRQHandler, // 10 - PIO INT3
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PIN_INT4_IRQHandler, // 11 - PIO INT4
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PIN_INT5_IRQHandler, // 12 - PIO INT5
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PIN_INT6_IRQHandler, // 13 - PIO INT6
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PIN_INT7_IRQHandler, // 14 - PIO INT7
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RIT_IRQHandler, // 15 - RIT
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SCT0_IRQHandler, // 16 - State configurable timer
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SCT1_IRQHandler, // 17 - State configurable timer
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SCT2_IRQHandler, // 18 - State configurable timer
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SCT3_IRQHandler, // 19 - State configurable timer
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MRT_IRQHandler, // 20 - Multi-Rate Timer
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UART0_IRQHandler, // 21 - UART0
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UART1_IRQHandler, // 22 - UART1
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UART2_IRQHandler, // 23 - UART2
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I2C0_IRQHandler, // 24 - I2C0 controller
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SPI0_IRQHandler, // 25 - SPI0 controller
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SPI1_IRQHandler, // 26 - SPI1 controller
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CAN_IRQHandler, // 27 - C_CAN0
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USB_IRQHandler, // 28 - USB IRQ
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USB_FIQHandler, // 29 - USB FIQ
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USBWakeup_IRQHandler, // 30 - USB wake-up
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ADC0A_IRQHandler, // 31 - ADC0 sequence A completion
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ADC0B_IRQHandler, // 32 - ADC0 sequence B completion
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ADC0_THCMP_IRQHandler, // 33 - ADC0 threshold compare
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ADC0_OVR_IRQHandler, // 34 - ADC0 overrun
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ADC1A_IRQHandler, // 35 - ADC1 sequence A completion
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ADC1B_IRQHandler, // 36 - ADC1 sequence B completion
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ADC1_THCMP_IRQHandler, // 37 - ADC1 threshold compare
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ADC1_OVR_IRQHandler, // 38 - ADC1 overrun
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DAC_IRQHandler, // 39 - DAC
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ACMP0_IRQHandler, // 40 - Analog Comparator 0
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ACMP1_IRQHandler, // 41 - Analog Comparator 1
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ACMP2_IRQHandler, // 42 - Analog Comparator 2
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ACMP3_IRQHandler, // 43 - Analog Comparator 3
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QEI_IRQHandler, // 44 - QEI
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RTC_ALARM_IRQHandler, // 45 - RTC alarm
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RTC_WAKE_IRQHandler, // 46 - RTC wake-up
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#else
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WDT_IRQHandler, // 0 - Windowed watchdog timer
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BOD_IRQHandler, // 1 - BOD
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FLASH_IRQHandler, // 2 - Flash controller
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EEPROM_IRQHandler, // 3 - EEPROM controller
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DMA_IRQHandler, // 4 - DMA
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GINT0_IRQHandler, // 5 - GINT0
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GINT1_IRQHandler, // 6 - GINT1
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PININT0_IRQHandler, // 7 - PIO INT0
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PININT1_IRQHandler, // 8 - PIO INT1
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PININT2_IRQHandler, // 9 - PIO INT2
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PININT3_IRQHandler, // 10 - PIO INT3
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PININT4_IRQHandler, // 11 - PIO INT4
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PININT5_IRQHandler, // 12 - PIO INT5
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PININT6_IRQHandler, // 13 - PIO INT6
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PININT7_IRQHandler, // 14 - PIO INT7
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RIT_IRQHandler, // 15 - RIT
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SCT0_IRQHandler, // 16 - State configurable timer
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SCT1_IRQHandler, // 17 - State configurable timer
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SCT2_IRQHandler, // 18 - State configurable timer
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SCT3_IRQHandler, // 19 - State configurable timer
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MRT_IRQHandler, // 20 - Multi-Rate Timer
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UART0_IRQHandler, // 21 - UART0
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UART1_IRQHandler, // 22 - UART1
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UART2_IRQHandler, // 23 - UART2
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I2C0_IRQHandler, // 24 - I2C0 controller
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SPI0_IRQHandler, // 25 - SPI0 controller
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SPI1_IRQHandler, // 26 - SPI1 controller
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CAN0_IRQHandler, // 27 - C_CAN0
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USB_IRQHandler, // 28 - USB IRQ
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USB_FIQHandler, // 29 - USB FIQ
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USBWakeup_IRQHandler, // 30 - USB wake-up
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ADC0_SEQA_IRQHandler, // 31 - ADC0 sequence A completion
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ADC0_SEQB_IRQHandler, // 32 - ADC0 sequence B completion
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ADC0_THCMP_IRQHandler, // 33 - ADC0 threshold compare
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ADC0_OVR_IRQHandler, // 34 - ADC0 overrun
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ADC1_SEQA_IRQHandler, // 35 - ADC1 sequence A completion
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ADC1_SEQB_IRQHandler, // 36 - ADC1 sequence B completion
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ADC1_THCMP_IRQHandler, // 37 - ADC1 threshold compare
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ADC1_OVR_IRQHandler, // 38 - ADC1 overrun
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DAC_IRQHandler, // 39 - DAC
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CMP0_IRQHandler, // 40 - Analog Comparator 0
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CMP1_IRQHandler, // 41 - Analog Comparator 1
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CMP2_IRQHandler, // 42 - Analog Comparator 2
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CMP3_IRQHandler, // 43 - Analog Comparator 3
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QEI_IRQHandler, // 44 - QEI
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RTC_ALARM_IRQHandler, // 45 - RTC alarm
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RTC_WAKE_IRQHandler, // 46 - RTC wake-up
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#endif
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}; /* End of g_pfnVectors */
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//*****************************************************************************
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// Functions to carry out the initialization of RW and BSS data sections. These
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// are written as separate functions rather than being inlined within the
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// ResetISR() function in order to cope with MCUs with multiple banks of
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// memory.
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//*****************************************************************************
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__attribute__ ((section(".after_vectors")))
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void data_init(unsigned int romstart, unsigned int start, unsigned int len) {
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unsigned int *pulDest = (unsigned int*) start;
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unsigned int *pulSrc = (unsigned int*) romstart;
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unsigned int loop;
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for (loop = 0; loop < len; loop = loop + 4)
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*pulDest++ = *pulSrc++;
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}
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__attribute__ ((section(".after_vectors")))
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void bss_init(unsigned int start, unsigned int len) {
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unsigned int *pulDest = (unsigned int*) start;
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unsigned int loop;
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for (loop = 0; loop < len; loop = loop + 4)
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*pulDest++ = 0;
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}
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//*****************************************************************************
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// The following symbols are constructs generated by the linker, indicating
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// the location of various points in the "Global Section Table". This table is
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// created by the linker via the Code Red managed linker script mechanism. It
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// contains the load address, execution address and length of each RW data
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// section and the execution and length of each BSS (zero initialized) section.
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//*****************************************************************************
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extern unsigned int __data_section_table;
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extern unsigned int __data_section_table_end;
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extern unsigned int __bss_section_table;
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extern unsigned int __bss_section_table_end;
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//*****************************************************************************
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// Reset entry point for your code.
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// Sets up a simple runtime environment and initializes the C/C++
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// library.
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//*****************************************************************************
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__attribute__ ((section(".after_vectors")))
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void
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ResetISR(void) {
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//
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// Copy the data sections from flash to SRAM.
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//
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unsigned int LoadAddr, ExeAddr, SectionLen;
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unsigned int *SectionTableAddr;
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// Load base address of Global Section Table
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SectionTableAddr = &__data_section_table;
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// Copy the data sections from flash to SRAM.
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while (SectionTableAddr < &__data_section_table_end) {
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LoadAddr = *SectionTableAddr++;
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ExeAddr = *SectionTableAddr++;
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SectionLen = *SectionTableAddr++;
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data_init(LoadAddr, ExeAddr, SectionLen);
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}
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// At this point, SectionTableAddr = &__bss_section_table;
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// Zero fill the bss segment
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while (SectionTableAddr < &__bss_section_table_end) {
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ExeAddr = *SectionTableAddr++;
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SectionLen = *SectionTableAddr++;
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bss_init(ExeAddr, SectionLen);
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}
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// Optionally enable Cortex-M3 SWV trace (off by default at reset)
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// Note - your board support must also set up the switch matrix
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// so that SWO is output on the appropriate pin for your hardware
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#if !defined (DONT_ENABLE_SWVTRACECLK)
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// Write 0x00000001 to TRACECLKDIV – Trace divider
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volatile unsigned int *TRACECLKDIV = (unsigned int *) 0x400740D8;
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*TRACECLKDIV = 1;
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#endif
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#if defined (__USE_CMSIS) || defined (__USE_LPCOPEN)
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SystemInit();
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#endif
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#if defined (__cplusplus)
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//
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// Call C++ library initialisation
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//
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__libc_init_array();
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#endif
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#if defined (__REDLIB__)
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// Call the Redlib library, which in turn calls main()
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__main() ;
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#else
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main();
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#endif
|
||
|
||
//
|
||
// main() shouldn't return, but if it does, we'll just enter an infinite loop
|
||
//
|
||
while (1) {
|
||
;
|
||
}
|
||
}
|
||
|
||
//*****************************************************************************
|
||
// Default exception handlers. Override the ones here by defining your own
|
||
// handler routines in your application code.
|
||
//*****************************************************************************
|
||
__attribute__ ((section(".after_vectors")))
|
||
void NMI_Handler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
__attribute__ ((section(".after_vectors")))
|
||
void HardFault_Handler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
__attribute__ ((section(".after_vectors")))
|
||
void MemManage_Handler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
__attribute__ ((section(".after_vectors")))
|
||
void BusFault_Handler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
__attribute__ ((section(".after_vectors")))
|
||
void UsageFault_Handler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
__attribute__ ((section(".after_vectors")))
|
||
void SVC_Handler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
__attribute__ ((section(".after_vectors")))
|
||
void DebugMon_Handler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
__attribute__ ((section(".after_vectors")))
|
||
void PendSV_Handler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
__attribute__ ((section(".after_vectors")))
|
||
void SysTick_Handler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
//*****************************************************************************
|
||
//
|
||
// Processor ends up here if an unexpected interrupt occurs or a specific
|
||
// handler is not present in the application code.
|
||
//
|
||
//*****************************************************************************
|
||
__attribute__ ((section(".after_vectors")))
|
||
void IntDefaultHandler(void)
|
||
{ while(1) {}
|
||
}
|
||
|
||
|
||
|