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534 lines
19 KiB
534 lines
19 KiB
//*****************************************************************************
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// LPC804 startup code for use with MCUXpresso IDE
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//
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// Version : 160420
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//*****************************************************************************
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//
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// Copyright 2016-2020 NXP
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// All rights reserved.
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//
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// SPDX-License-Identifier: BSD-3-Clause
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//*****************************************************************************
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#if defined (DEBUG)
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#pragma GCC push_options
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#pragma GCC optimize ("Og")
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#endif // (DEBUG)
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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 WEAK_AV __attribute__ ((weak, section(".after_vectors")))
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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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// Variable to store CRP value in. Will be placed automatically
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// by the linker when "Enable Code Read Protect" selected.
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// See crp.h header for more information
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//*****************************************************************************
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#include <NXP/crp.h>
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__CRP const unsigned int CRP_WORD = CRP_NO_CRP ;
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//*****************************************************************************
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// Declaration of external SystemInit function
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//*****************************************************************************
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#if defined (__USE_CMSIS)
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extern void SystemInit(void);
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#endif // (__USE_CMSIS)
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//*****************************************************************************
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// Forward declaration of the core exception handlers.
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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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// If your application is a C++ one, then any interrupt handlers defined
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// in C++ files within in your main application will need to have C linkage
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// rather than C++ linkage. To do this, make sure that you are using extern "C"
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// { .... } around the interrupt handler within your main application code.
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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 SVC_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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// Forward declaration of the application IRQ handlers. When the application
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// defines a handler (with the same name), this will automatically take
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// precedence over weak definitions below
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//*****************************************************************************
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WEAK void SPI0_IRQHandler(void);
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WEAK void Reserved17_IRQHandler(void);
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WEAK void DAC0_IRQHandler(void);
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WEAK void USART0_IRQHandler(void);
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WEAK void USART1_IRQHandler(void);
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WEAK void Reserved21_IRQHandler(void);
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WEAK void Reserved22_IRQHandler(void);
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WEAK void I2C1_IRQHandler(void);
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WEAK void I2C0_IRQHandler(void);
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WEAK void Reserved25_IRQHandler(void);
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WEAK void MRT0_IRQHandler(void);
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WEAK void CMP_CAPT_IRQHandler(void);
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WEAK void WDT_IRQHandler(void);
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WEAK void BOD_IRQHandler(void);
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WEAK void FLASH_IRQHandler(void);
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WEAK void WKT_IRQHandler(void);
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WEAK void ADC_SEQA_IRQHandler(void);
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WEAK void ADC_SEQB_IRQHandler(void);
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WEAK void ADC_THCMP_IRQHandler(void);
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WEAK void ADC_OVR_IRQHandler(void);
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WEAK void Reserved36_IRQHandler(void);
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WEAK void Reserved37_IRQHandler(void);
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WEAK void Reserved38_IRQHandler(void);
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WEAK void CTIMER0_IRQHandler(void);
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WEAK void PIN_INT0_IRQHandler(void);
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WEAK void PIN_INT1_IRQHandler(void);
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WEAK void PIN_INT2_IRQHandler(void);
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WEAK void PIN_INT3_IRQHandler(void);
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WEAK void PIN_INT4_IRQHandler(void);
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WEAK void PIN_INT5_IRQHandler(void);
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WEAK void PIN_INT6_IRQHandler(void);
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WEAK void PIN_INT7_IRQHandler(void);
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//*****************************************************************************
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// Forward declaration of the driver IRQ handlers. These are aliased
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// to the IntDefaultHandler, which is a 'forever' loop. When the driver
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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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void SPI0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void Reserved17_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void DAC0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void USART0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void USART1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void Reserved21_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void Reserved22_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void I2C1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void I2C0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void Reserved25_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void MRT0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void CMP_CAPT_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void WDT_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void BOD_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void FLASH_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void WKT_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC_SEQA_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC_SEQB_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC_THCMP_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void ADC_OVR_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void Reserved36_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void Reserved37_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void Reserved38_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void CTIMER0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT0_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT1_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT2_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT3_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT4_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT5_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT6_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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void PIN_INT7_DriverIRQHandler(void) ALIAS(IntDefaultHandler);
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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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#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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// External declaration for the pointer to the stack top from the Linker Script
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//*****************************************************************************
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extern void _vStackTop(void);
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//*****************************************************************************
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// External declaration for LPC MCU vector table checksum from Linker Script
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//*****************************************************************************
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WEAK extern void __valid_user_code_checksum();
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//*****************************************************************************
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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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// 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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extern void (* const g_pfnVectors[])(void);
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extern void * __Vectors __attribute__ ((alias ("g_pfnVectors")));
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__attribute__ ((used, section(".isr_vector")))
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void (* const g_pfnVectors[])(void) = {
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// Core Level - CM0P
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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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0, // Reserved
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0, // Reserved
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0, // Reserved
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__valid_user_code_checksum, // LPC MCU checksum
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0, // ECRP
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0, // Reserved
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0, // Reserved
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SVC_Handler, // SVCall handler
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0, // Reserved
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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 - LPC804
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SPI0_IRQHandler, // 16: SPI0 interrupt
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Reserved17_IRQHandler, // 17: Reserved interrupt
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DAC0_IRQHandler, // 18: DAC0 interrupt
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USART0_IRQHandler, // 19: USART0 interrupt
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USART1_IRQHandler, // 20: USART1 interrupt
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Reserved21_IRQHandler, // 21: Reserved interrupt
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Reserved22_IRQHandler, // 22: Reserved interrupt
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I2C1_IRQHandler, // 23: I2C1 interrupt
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I2C0_IRQHandler, // 24: I2C0 interrupt
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Reserved25_IRQHandler, // 25: Reserved interrupt
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MRT0_IRQHandler, // 26: Multi-rate timer interrupt
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CMP_CAPT_IRQHandler, // 27: Analog comparator interrupt or Capacitive Touch interrupt
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WDT_IRQHandler, // 28: Windowed watchdog timer interrupt
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BOD_IRQHandler, // 29: BOD interrupts
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FLASH_IRQHandler, // 30: flash interrupt
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WKT_IRQHandler, // 31: Self-wake-up timer interrupt
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ADC_SEQA_IRQHandler, // 32: ADC sequence A completion.
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ADC_SEQB_IRQHandler, // 33: ADC sequence B completion.
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ADC_THCMP_IRQHandler, // 34: ADC threshold compare and error.
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ADC_OVR_IRQHandler, // 35: ADC overrun
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Reserved36_IRQHandler, // 36: Reserved interrupt
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Reserved37_IRQHandler, // 37: Reserved interrupt
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Reserved38_IRQHandler, // 38: Reserved interrupt
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CTIMER0_IRQHandler, // 39: Timer interrupt
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PIN_INT0_IRQHandler, // 40: Pin interrupt 0 or pattern match engine slice 0 interrupt
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PIN_INT1_IRQHandler, // 41: Pin interrupt 1 or pattern match engine slice 1 interrupt
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PIN_INT2_IRQHandler, // 42: Pin interrupt 2 or pattern match engine slice 2 interrupt
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PIN_INT3_IRQHandler, // 43: Pin interrupt 3 or pattern match engine slice 3 interrupt
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PIN_INT4_IRQHandler, // 44: Pin interrupt 4 or pattern match engine slice 4 interrupt
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PIN_INT5_IRQHandler, // 45: Pin interrupt 5 or pattern match engine slice 5 interrupt
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PIN_INT6_IRQHandler, // 46: Pin interrupt 6 or pattern match engine slice 6 interrupt
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PIN_INT7_IRQHandler, // 47: Pin interrupt 7 or pattern match engine slice 7 interrupt
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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.init_data")))
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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.init_bss")))
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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__ ((naked, section(".after_vectors.reset")))
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void ResetISR(void) {
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// Disable interrupts
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__asm volatile ("cpsid i");
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// Enable SRAM clock used by Stack
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__asm volatile ("LDR R0, =0x40000220\n\t"
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"MOV R1, #56\n\t"
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"STR R1, [R0]");
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#if defined (__USE_CMSIS)
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// If __USE_CMSIS defined, then call CMSIS SystemInit code
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SystemInit();
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#endif // (__USE_CMSIS)
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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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#if !defined (__USE_CMSIS)
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// Assume that if __USE_CMSIS defined, then CMSIS SystemInit code
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// will setup the VTOR register
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// Check to see if we are running the code from a non-zero
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// address (eg RAM, external flash), in which case we need
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// to modify the VTOR register to tell the CPU that the
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// vector table is located at a non-0x0 address.
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unsigned int * pSCB_VTOR = (unsigned int *) 0xE000ED08;
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if ((unsigned int *)g_pfnVectors!=(unsigned int *) 0x00000000) {
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*pSCB_VTOR = (unsigned int)g_pfnVectors;
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}
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#endif // (__USE_CMSIS)
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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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// Reenable interrupts
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__asm volatile ("cpsie i");
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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
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//
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// main() shouldn't return, but if it does, we'll just enter an infinite loop
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//
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while (1) {
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;
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}
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}
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//*****************************************************************************
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// Default core exception handlers. Override the ones here by defining your own
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// handler routines in your application code.
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//*****************************************************************************
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WEAK_AV void NMI_Handler(void)
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{ while(1) {}
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}
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WEAK_AV void HardFault_Handler(void)
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{ while(1) {}
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}
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WEAK_AV void SVC_Handler(void)
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{ while(1) {}
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}
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WEAK_AV void PendSV_Handler(void)
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{ while(1) {}
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}
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WEAK_AV void SysTick_Handler(void)
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{ while(1) {}
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}
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//*****************************************************************************
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// Processor ends up here if an unexpected interrupt occurs or a specific
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// handler is not present in the application code.
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//*****************************************************************************
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WEAK_AV void IntDefaultHandler(void)
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{ while(1) {}
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}
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//*****************************************************************************
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// Default application exception handlers. Override the ones here by defining
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// your own handler routines in your application code. These routines call
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// driver exception handlers or IntDefaultHandler() if no driver exception
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// handler is included.
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//*****************************************************************************
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WEAK_AV void SPI0_IRQHandler(void)
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{ SPI0_DriverIRQHandler();
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}
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WEAK_AV void Reserved17_IRQHandler(void)
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{ Reserved17_DriverIRQHandler();
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}
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WEAK_AV void DAC0_IRQHandler(void)
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{ DAC0_DriverIRQHandler();
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}
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WEAK_AV void USART0_IRQHandler(void)
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{ USART0_DriverIRQHandler();
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}
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WEAK_AV void USART1_IRQHandler(void)
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{ USART1_DriverIRQHandler();
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}
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WEAK_AV void Reserved21_IRQHandler(void)
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{ Reserved21_DriverIRQHandler();
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}
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WEAK_AV void Reserved22_IRQHandler(void)
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{ Reserved22_DriverIRQHandler();
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}
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WEAK_AV void I2C1_IRQHandler(void)
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{ I2C1_DriverIRQHandler();
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}
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WEAK_AV void I2C0_IRQHandler(void)
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{ I2C0_DriverIRQHandler();
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}
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WEAK_AV void Reserved25_IRQHandler(void)
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{ Reserved25_DriverIRQHandler();
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}
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WEAK_AV void MRT0_IRQHandler(void)
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{ MRT0_DriverIRQHandler();
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}
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WEAK_AV void CMP_CAPT_IRQHandler(void)
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{ CMP_CAPT_DriverIRQHandler();
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}
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WEAK_AV void WDT_IRQHandler(void)
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{ WDT_DriverIRQHandler();
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}
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WEAK_AV void BOD_IRQHandler(void)
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{ BOD_DriverIRQHandler();
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}
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WEAK_AV void FLASH_IRQHandler(void)
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{ FLASH_DriverIRQHandler();
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}
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WEAK_AV void WKT_IRQHandler(void)
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{ WKT_DriverIRQHandler();
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}
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WEAK_AV void ADC_SEQA_IRQHandler(void)
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{ ADC_SEQA_DriverIRQHandler();
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}
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WEAK_AV void ADC_SEQB_IRQHandler(void)
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{ ADC_SEQB_DriverIRQHandler();
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}
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WEAK_AV void ADC_THCMP_IRQHandler(void)
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{ ADC_THCMP_DriverIRQHandler();
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}
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WEAK_AV void ADC_OVR_IRQHandler(void)
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{ ADC_OVR_DriverIRQHandler();
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}
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WEAK_AV void Reserved36_IRQHandler(void)
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{ Reserved36_DriverIRQHandler();
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}
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WEAK_AV void Reserved37_IRQHandler(void)
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{ Reserved37_DriverIRQHandler();
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}
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WEAK_AV void Reserved38_IRQHandler(void)
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{ Reserved38_DriverIRQHandler();
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}
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WEAK_AV void CTIMER0_IRQHandler(void)
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{ CTIMER0_DriverIRQHandler();
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}
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WEAK_AV void PIN_INT0_IRQHandler(void)
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{ PIN_INT0_DriverIRQHandler();
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}
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WEAK_AV void PIN_INT1_IRQHandler(void)
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{ PIN_INT1_DriverIRQHandler();
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}
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WEAK_AV void PIN_INT2_IRQHandler(void)
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{ PIN_INT2_DriverIRQHandler();
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}
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WEAK_AV void PIN_INT3_IRQHandler(void)
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{ PIN_INT3_DriverIRQHandler();
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}
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WEAK_AV void PIN_INT4_IRQHandler(void)
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{ PIN_INT4_DriverIRQHandler();
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|
}
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|
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WEAK_AV void PIN_INT5_IRQHandler(void)
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|
{ PIN_INT5_DriverIRQHandler();
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|
}
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|
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WEAK_AV void PIN_INT6_IRQHandler(void)
|
|
{ PIN_INT6_DriverIRQHandler();
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|
}
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|
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|
WEAK_AV void PIN_INT7_IRQHandler(void)
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|
{ PIN_INT7_DriverIRQHandler();
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|
}
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|
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//*****************************************************************************
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|
|
|
#if defined (DEBUG)
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|
#pragma GCC pop_options
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|
#endif // (DEBUG)
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|
|