/* * File : trap.c * This file is part of RT-Thread RTOS * COPYRIGHT (C) 2006, RT-Thread Development Team * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://openlab.rt-thread.com/license/LICENSE * * Change Logs: * Date Author Notes * 2008-12-11 XuXinming first version */ #include <rtthread.h> #include <rthw.h> #include "LPC24xx.h" //#define BSP_INT_DEBUG /** * @addtogroup LPC2478 */ /*@{*/ /** * this function will show registers of CPU * * @param regs the registers point */ void rt_hw_show_register (struct rt_hw_register *regs) { rt_kprintf("Execption:\n"); rt_kprintf("r00:0x%08x r01:0x%08x r02:0x%08x r03:0x%08x\n", regs->r0, regs->r1, regs->r2, regs->r3); rt_kprintf("r04:0x%08x r05:0x%08x r06:0x%08x r07:0x%08x\n", regs->r4, regs->r5, regs->r6, regs->r7); rt_kprintf("r08:0x%08x r09:0x%08x r10:0x%08x\n", regs->r8, regs->r9, regs->r10); rt_kprintf("fp :0x%08x ip :0x%08x\n", regs->fp, regs->ip); rt_kprintf("sp :0x%08x lr :0x%08x pc :0x%08x\n", regs->sp, regs->lr, regs->pc); rt_kprintf("cpsr:0x%08x\n", regs->cpsr); } /** * When ARM7TDMI comes across an instruction which it cannot handle, * it takes the undefined instruction trap. * * @param regs system registers * * @note never invoke this function in application */ void rt_hw_trap_udef(struct rt_hw_register *regs) { rt_kprintf("undefined instruction\n"); rt_hw_show_register(regs); rt_hw_cpu_shutdown(); } /** * The software interrupt instruction (SWI) is used for entering * Supervisor mode, usually to request a particular supervisor * function. * * @param regs system registers * * @note never invoke this function in application */ void rt_hw_trap_swi(struct rt_hw_register *regs) { rt_kprintf("software interrupt\n"); rt_hw_show_register(regs); rt_hw_cpu_shutdown(); } /** * An abort indicates that the current memory access cannot be completed, * which occurs during an instruction prefetch. * * @param regs system registers * * @note never invoke this function in application */ void rt_hw_trap_pabt(struct rt_hw_register *regs) { rt_kprintf("prefetch abort\n"); rt_hw_show_register(regs); rt_hw_cpu_shutdown(); } /** * An abort indicates that the current memory access cannot be completed, * which occurs during a data access. * * @param regs system registers * * @note never invoke this function in application */ void rt_hw_trap_dabt(struct rt_hw_register *regs) { rt_kprintf("Data Abort "); rt_hw_show_register(regs); rt_hw_cpu_shutdown(); } /** * Normally, system will never reach here * * @param regs system registers * * @note never invoke this function in application */ void rt_hw_trap_resv(struct rt_hw_register *regs) { rt_kprintf("not used\n"); rt_hw_show_register(regs); rt_hw_cpu_shutdown(); } extern rt_isr_handler_t isr_table[]; void rt_hw_trap_irq() { rt_isr_handler_t isr_func; isr_func = (rt_isr_handler_t) VICVectAddr; isr_func(0); } void rt_hw_trap_fiq() { rt_kprintf("fast interrupt request\n"); } /*@}*/