The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
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mbed 2
This is the mbed 2 library. If you'd like to learn about Mbed OS please see the mbed-os docs.
Diff: TARGET_NUCLEO_F030R8/TOOLCHAIN_ARM_STD/mbed_fault_handler.h
- Revision:
- 172:65be27845400
diff -r 3a7713b1edbc -r 65be27845400 TARGET_NUCLEO_F030R8/TOOLCHAIN_ARM_STD/mbed_fault_handler.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_NUCLEO_F030R8/TOOLCHAIN_ARM_STD/mbed_fault_handler.h Wed Feb 20 20:53:29 2019 +0000 @@ -0,0 +1,76 @@ +/* mbed Microcontroller Library + * Copyright (c) 2006-2018 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef MBED_FAULT_HANDLER_H +#define MBED_FAULT_HANDLER_H + +#ifdef __cplusplus +extern "C" { +#endif + +//Fault context struct +//WARNING: DO NOT CHANGE THIS STRUCT WITHOUT MAKING CORRESPONDING CHANGES in except.S files. +//Offset of these registers are used by fault handler in except.S +typedef struct { + uint32_t R0_reg; + uint32_t R1_reg; + uint32_t R2_reg; + uint32_t R3_reg; + uint32_t R4_reg; + uint32_t R5_reg; + uint32_t R6_reg; + uint32_t R7_reg; + uint32_t R8_reg; + uint32_t R9_reg; + uint32_t R10_reg; + uint32_t R11_reg; + uint32_t R12_reg; + uint32_t SP_reg; + uint32_t LR_reg; + uint32_t PC_reg; + uint32_t xPSR; + uint32_t PSP; + uint32_t MSP; + uint32_t EXC_RETURN; + uint32_t CONTROL; +} mbed_fault_context_t; + +//Fault type definitions +//WARNING: DO NOT CHANGE THESE VALUES WITHOUT MAKING CORRESPONDING CHANGES in except.S files. +#define HARD_FAULT_EXCEPTION (0x10) //Keep some gap between values for any future insertion/expansion +#define MEMMANAGE_FAULT_EXCEPTION (0x20) +#define BUS_FAULT_EXCEPTION (0x30) +#define USAGE_FAULT_EXCEPTION (0x40) + +//This is a handler function called from Fault handler to print the error information out. +//This runs in fault context and uses special functions(defined in mbed_fault_handler.c) to print the information without using C-lib support. +void mbed_fault_handler (uint32_t fault_type, void *mbed_fault_context_in); + +/** + * Call this function to retrieve the fault context after a fatal exception which triggered a system reboot. The function retrieves the fault context stored in crash-report ram area which is preserved over reboot. + * @param fault_context Pointer to mbed_fault_context_t struct allocated by the caller. This is the mbed_fault_context_t info captured as part of the fatal exception which triggered the reboot. + * @return 0 or MBED_SUCCESS on success. + * MBED_ERROR_INVALID_ARGUMENT in case of invalid error_info pointer + * MBED_ERROR_ITEM_NOT_FOUND if no reboot context is currently captured by teh system + * + */ +mbed_error_status_t mbed_get_reboot_fault_context (mbed_fault_context_t *fault_context); + +#ifdef __cplusplus +} +#endif + +#endif