| /** |
| * \addtogroup BSP |
| * \{ |
| * \addtogroup SYSTEM |
| * \{ |
| * \addtogroup Exception_Handlers |
| * \{ |
| */ |
| |
| /** |
| **************************************************************************************** |
| * |
| * @file hw_hard_fault.c |
| * |
| * @brief HardFault handler. |
| * |
| * Copyright (c) 2016, Dialog Semiconductor |
| * All rights reserved. |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holder nor the names of its contributors |
| * may be used to endorse or promote products derived from this software without |
| * specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS 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. |
| * |
| * |
| **************************************************************************************** |
| */ |
| #include <stdint.h> |
| #include <stdio.h> |
| #include "sdk_defs.h" |
| #include "hw_hard_fault.h" |
| #include "hw_watchdog.h" |
| #include "hw_cpm.h" |
| |
| |
| |
| /* |
| * Global variables |
| */ |
| uint32_t hardfault_event_data[9] __attribute__((section("hard_fault_info"))); |
| |
| /* |
| * Local variables |
| */ |
| |
| |
| /* |
| * This is the base address in Retention RAM where the stacked information will be copied. |
| */ |
| #define STATUS_BASE (0x7FC5600) |
| |
| /* |
| * Compilation switch to enable verbose output on HardFault |
| */ |
| #ifndef VERBOSE_HARDFAULT |
| # define VERBOSE_HARDFAULT 0 |
| #endif |
| |
| |
| /* |
| * Function definitions |
| */ |
| |
| /** |
| * \brief HardFault handler implementation. During development it will copy the system's status |
| * to a predefined location in memory. In release mode, it will cause a system reset. |
| * |
| * \param [in] hardfault_args The system's status when the HardFault event occurred. |
| * |
| * \return void |
| * |
| */ |
| #if (dg_configCODE_LOCATION == NON_VOLATILE_IS_FLASH) |
| __attribute__((section("text_retained"))) |
| #endif |
| void HardFault_HandlerC(unsigned long *hardfault_args) |
| { |
| // Stack frame contains: |
| // r0, r1, r2, r3, r12, r14, the return address and xPSR |
| // - Stacked R0 = hf_args[0] |
| // - Stacked R1 = hf_args[1] |
| // - Stacked R2 = hf_args[2] |
| // - Stacked R3 = hf_args[3] |
| // - Stacked R12 = hf_args[4] |
| // - Stacked LR = hf_args[5] |
| // - Stacked PC = hf_args[6] |
| // - Stacked xPSR= hf_args[7] |
| if (dg_configIMAGE_SETUP == DEVELOPMENT_MODE) |
| { |
| hw_watchdog_freeze(); // Stop WDOG |
| |
| ENABLE_DEBUGGER; |
| |
| *(volatile unsigned long *)(STATUS_BASE) = hardfault_args[0]; // R0 |
| *(volatile unsigned long *)(STATUS_BASE + 0x04) = hardfault_args[1]; // R1 |
| *(volatile unsigned long *)(STATUS_BASE + 0x08) = hardfault_args[2]; // R2 |
| *(volatile unsigned long *)(STATUS_BASE + 0x0C) = hardfault_args[3]; // R3 |
| *(volatile unsigned long *)(STATUS_BASE + 0x10) = hardfault_args[4]; // R12 |
| *(volatile unsigned long *)(STATUS_BASE + 0x14) = hardfault_args[5]; // LR |
| *(volatile unsigned long *)(STATUS_BASE + 0x18) = hardfault_args[6]; // PC |
| *(volatile unsigned long *)(STATUS_BASE + 0x1C) = hardfault_args[7]; // PSR |
| *(volatile unsigned long *)(STATUS_BASE + 0x20) = (unsigned long)hardfault_args; // Stack Pointer |
| |
| *(volatile unsigned long *)(STATUS_BASE + 0x24) = (*((volatile unsigned long *)(0xE000ED28))); // CFSR |
| *(volatile unsigned long *)(STATUS_BASE + 0x28) = (*((volatile unsigned long *)(0xE000ED2C))); // HFSR |
| *(volatile unsigned long *)(STATUS_BASE + 0x2C) = (*((volatile unsigned long *)(0xE000ED30))); // DFSR |
| *(volatile unsigned long *)(STATUS_BASE + 0x30) = (*((volatile unsigned long *)(0xE000ED3C))); // AFSR |
| *(volatile unsigned long *)(STATUS_BASE + 0x34) = (*((volatile unsigned long *)(0xE000ED34))); // MMAR |
| *(volatile unsigned long *)(STATUS_BASE + 0x38) = (*((volatile unsigned long *)(0xE000ED38))); // BFAR |
| |
| if (VERBOSE_HARDFAULT) |
| { |
| printf("HardFault Handler:\r\n"); |
| printf("- R0 = 0x%08lx\r\n", hardfault_args[0]); |
| printf("- R1 = 0x%08lx\r\n", hardfault_args[1]); |
| printf("- R2 = 0x%08lx\r\n", hardfault_args[2]); |
| printf("- R3 = 0x%08lx\r\n", hardfault_args[3]); |
| printf("- R12 = 0x%08lx\r\n", hardfault_args[4]); |
| printf("- LR = 0x%08lx\r\n", hardfault_args[5]); |
| printf("- PC = 0x%08lx\r\n", hardfault_args[6]); |
| printf("- xPSR= 0x%08lx\r\n", hardfault_args[7]); |
| } |
| |
| hw_cpm_assert_trigger_gpio(); |
| |
| while (1); |
| } |
| else |
| { |
| # ifdef PRODUCTION_DEBUG_OUTPUT |
| # if (USE_WDOG) |
| WDOG->WATCHDOG_REG = 0xC8; // Reset WDOG! 200 * 10.24ms active time for UART to finish printing! |
| # endif |
| |
| dbg_prod_output(1, hardfault_args); |
| # endif // PRODUCTION_DEBUG_OUTPUT |
| |
| hardfault_event_data[0] = HARDFAULT_MAGIC_NUMBER; |
| hardfault_event_data[1] = hardfault_args[0]; // R0 |
| hardfault_event_data[2] = hardfault_args[1]; // R1 |
| hardfault_event_data[3] = hardfault_args[2]; // R2 |
| hardfault_event_data[4] = hardfault_args[3]; // R3 |
| hardfault_event_data[5] = hardfault_args[4]; // R12 |
| hardfault_event_data[6] = hardfault_args[5]; // LR |
| hardfault_event_data[7] = hardfault_args[6]; // PC |
| hardfault_event_data[8] = hardfault_args[7]; // PSR |
| |
| hw_cpm_reboot_system(); // Force reset |
| |
| while (1); |
| } |
| } |
| |
| /** |
| * \} |
| * \} |
| * \} |
| * */ |