/* * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #include "rk3399_mcu.h" /* Stack configuration */ #define STACK_SIZE 0x00000100 __attribute__ ((section(".co_stack"))) unsigned long pstack[STACK_SIZE]; /* Macro definition */ #define WEAK __attribute__ ((weak)) /* System exception vector handler */ __attribute__ ((used)) void WEAK reset_handler(void); void WEAK nmi_handler(void); void WEAK hardware_fault_handler(void); void WEAK svc_handler(void); void WEAK pend_sv_handler(void); void WEAK systick_handler(void); extern int main(void); /* Function prototypes */ static void default_reset_handler(void); static void default_handler(void); /* * The minimal vector table for a Cortex M3. Note that the proper constructs * must be placed on this to ensure that it ends up at physical address * 0x00000000. */ __attribute__ ((used, section(".isr_vector"))) void (* const g_pfnVectors[])(void) = { /* core Exceptions */ (void *)&pstack[STACK_SIZE], /* the initial stack pointer */ reset_handler, nmi_handler, hardware_fault_handler, 0, 0, 0, 0, 0, 0, 0, svc_handler, 0, 0, pend_sv_handler, systick_handler, /* external exceptions */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; /** * This is the code that gets called when the processor first * starts execution following a reset event. Only the absolutely * necessary set is performed, after which the application * supplied main() routine is called. */ static void default_reset_handler(void) { /* call the application's entry point */ main(); } /** * Provide weak aliases for each Exception handler to the Default_Handler. * As they are weak aliases, any function with the same name will override * this definition. */ #pragma weak reset_handler = default_reset_handler #pragma weak nmi_handler = default_handler #pragma weak hardware_fault_handler = default_handler #pragma weak svc_handler = default_handler #pragma weak pend_sv_handler = default_handler #pragma weak systick_handler = default_handler /** * This is the code that gets called when the processor receives * an unexpected interrupt. This simply enters an infinite loop, * preserving the system state for examination by a debugger. */ static void default_handler(void) { /* go into an infinite loop. */ while (1) ; }