diff options
Diffstat (limited to 'c/src/lib/libbsp/arm/atsam/libraries/libchip/source/exceptions.c')
| -rw-r--r-- | c/src/lib/libbsp/arm/atsam/libraries/libchip/source/exceptions.c | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/exceptions.c b/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/exceptions.c deleted file mode 100644 index cc5329f1da..0000000000 --- a/c/src/lib/libbsp/arm/atsam/libraries/libchip/source/exceptions.c +++ /dev/null @@ -1,214 +0,0 @@ -/* ---------------------------------------------------------------------------- */ -/* Atmel Microcontroller Software Support */ -/* SAM Software Package License */ -/* ---------------------------------------------------------------------------- */ -/* Copyright (c) 2015, Atmel Corporation */ -/* */ -/* All rights reserved. */ -/* */ -/* Redistribution and use in source and binary forms, with or without */ -/* modification, are permitted provided that the following condition is met: */ -/* */ -/* - Redistributions of source code must retain the above copyright notice, */ -/* this list of conditions and the disclaimer below. */ -/* */ -/* Atmel's name may not be used to endorse or promote products derived from */ -/* this software without specific prior written permission. */ -/* */ -/* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ -/* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ -/* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ -/* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ -/* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ -/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ -/* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ -/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ -/* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -/* ---------------------------------------------------------------------------- */ - -/** - * \file - * This file contains the default exception handlers. - * - * \note - * The exception handler has weak aliases. - * As they are weak aliases, any function with the same name will override - * this definition. - */ - -/*---------------------------------------------------------------------------- - * Headers - *----------------------------------------------------------------------------*/ - -#include "chip.h" - -/*---------------------------------------------------------------------------- - * Exported functions - *----------------------------------------------------------------------------*/ - -/** - * \brief Default NMI interrupt handler. - */ -void NMI_Handler(void) -{ - printf("\r\n-E- Enter NMI_Handler!"); - - while (1); -} - -/** - * \brief This function back trace the stack to give exact address where fault - happened -**/ -__STATIC_INLINE uint32_t StackUnwind(void) -{ - uint32_t Fault_Add; - -#if defined (__CC_ARM) - uint32_t temp; - __ASM("mrs temp, msp "); - __ASM{ ldr Fault_Add, [temp, #28]} -#else - __ASM("mrs r0, msp "); - __ASM("ldr %0, [r0,#28]" : "=r" (Fault_Add)); -#endif - return Fault_Add; -} - -/** - * \brief If Other Faults are enabled then HardFault error will look for those - * errors to give more detail about fault -**/ -static void HardFault_reason(void) -{ - uint32_t CFSRValue; - TRACE_DEBUG("In Hard Fault Handler\n\r"); - TRACE_DEBUG("SCB->HFSR = 0x%08x\n\r", SCB->HFSR); - - if ((SCB->HFSR & SCB_HFSR_DEBUGEVT_Msk)) { - TRACE_DEBUG("Debug Event Hard Fault\n\r"); - TRACE_DEBUG("SCB->DFSR = 0x%08x\n", SCB->DFSR); - } - - if ((SCB->HFSR & SCB_HFSR_VECTTBL_Msk)) { - TRACE_DEBUG("Fault was due to vector table read on \ - exception processing\n\r"); - } - - // Forced HardFault - if ((SCB->HFSR & SCB_HFSR_FORCED_Msk)) { - TRACE_DEBUG("Forced Hard Fault\n\r"); - TRACE_DEBUG("SCB->CFSR = 0x%08x\n\r", SCB->CFSR); - - // Usage Fault - if ((SCB->CFSR & SCB_CFSR_USGFAULTSR_Msk)) { - CFSRValue = SCB->CFSR; - TRACE_DEBUG("Usage fault: "); - CFSRValue >>= SCB_CFSR_USGFAULTSR_Pos; - - if ((CFSRValue & (1 << 9))) - TRACE_DEBUG("Divide by zero\n\r"); - - if ((CFSRValue & (1 << 8))) - TRACE_DEBUG("Unaligned access error\n\r"); - - if ((CFSRValue & (1 << 3))) - TRACE_DEBUG("Coprocessor access error\n\r"); - - if ((CFSRValue & (1 << 2))) - TRACE_DEBUG("Integrity check error on EXC_RETURN\n\r"); - } - - // Bus Fault - if ((SCB->CFSR & SCB_CFSR_BUSFAULTSR_Msk)) { - CFSRValue = SCB->CFSR; - TRACE_DEBUG("Bus fault: "); - CFSRValue >>= SCB_CFSR_BUSFAULTSR_Pos; - - if ((CFSRValue & (1 << 7)) && (CFSRValue & (1 << 1))) { - TRACE_DEBUG("Precise data access error. Bus Fault Address \ - Register is: %x \n\r", SCB->BFAR); - } - - if ((CFSRValue & (1 << 4))) - TRACE_DEBUG("Bus fault has occurred on exception entry\n\r"); - - if ((CFSRValue & (1 << 3))) - TRACE_DEBUG("bus fault has occurred on exception return\n\r"); - - if ((CFSRValue & (1 << 2))) - TRACE_DEBUG("Imprecise data access error\n\r"); - - if ((CFSRValue & (1 << 0))) { - TRACE_DEBUG("This bit indicates a bus fault on an instruction \ - pre-fetch. \n\r"); - } - } - } - - // MemoryFault - if ((SCB->CFSR & SCB_CFSR_MEMFAULTSR_Msk)) { - CFSRValue = SCB->CFSR; - TRACE_DEBUG("Memory fault: "); - CFSRValue >>= SCB_CFSR_MEMFAULTSR_Pos; - - if ((CFSRValue & (1 << 9)) != 0) - TRACE_DEBUG("Divide by zero\n\r"); - } - - __ISB(); - __DMB(); - __ASM volatile("BKPT #01"); -} -/** - * \brief Default HardFault interrupt handler. - */ - -void HardFault_Handler(void) -{ - printf("\n\rHardFault at address 0X%x\n\r", (int)StackUnwind()); - __ISB(); - __DMB(); - HardFault_reason(); -} - -#ifndef MPU_EXAMPLE_FEATURE -/** - * \brief Default MemManage interrupt handler. - */ -void MemManage_Handler(void) -{ - printf("\n\rMemoryMemFault (MPU fault) at address 0X%x\n\r", - (int)StackUnwind()); - __ISB(); - __DMB(); - __ASM volatile("BKPT #01"); -} -#endif - -/** - * \brief Default BusFault interrupt handler. - */ -void BusFault_Handler(void) -{ - __ASM("nop"); - __ASM("nop"); - printf("\n\rBus Fault at address 0X%x\n\r", (int)StackUnwind()); - - __ISB(); - __DMB(); - __ASM volatile("BKPT #01"); -} - -/** - * \brief Default UsageFault interrupt handler. - */ -void UsageFault_Handler(void) -{ - printf("\r\nUsage fault at address 0X%x", (int)StackUnwind()); - - __ISB(); - __DMB(); - __ASM volatile("BKPT #01"); -} |