wangfq
9f5102e9e8
现象: LUP 帧后复位, RST=0x00000000 (无标志) 且 HardFault 打印缺失
(上次 0x10000000=SFT 确认 HardFault 路径, 这次连打印都没有)
方案: .noinit 段复位不清零, 跨复位留痕
- Link.ld: 新增 .noinit 段 (startup 只清 .bss 不碰)
- fault_diag.h: FaultDiag{magic,mcause,mepc,mtval,marker,boot_cnt} + FAULT_MARKER 轨迹宏
- HardFault_Handler: 纯 RAM 写 mcause/mepc/mtval (官方 __get_MCAUSE/MEPC/MTVAL,
不依赖 UART/printf, 栈坏也能留痕) + 尽力打印
- main 开头 fault_diag_init(): 打印上次现场 + 递增 boot_cnt
- 轨迹 marker: 主循环 LOOP_TOP/UART_SRV/SIM_SPI/POLL_BLE + LUP 链
LUP_FRAME/INGEST/EVT_FEED 入口出口, 复位后看 marker 停在哪一步
128 lines
4.0 KiB
C
128 lines
4.0 KiB
C
/********************************** (C) COPYRIGHT *******************************
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* File Name : ch32v20x_it.c
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* Author : WCH
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* Version : V1.0.0
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* Date : 2022/06/16
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* Description : Main Interrupt Service Routines.
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*********************************************************************************
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* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
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* Attention: This software (modified or not) and binary are used for
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* microcontroller manufactured by Nanjing Qinheng Microelectronics.
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*******************************************************************************/
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/*********************************************************************
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* INCLUDES
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*/
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#include "ch32v20x_it.h"
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#include "eth_driver.h"
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#include "CONFIG.h"
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#include "debug.h"
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#include "fault_diag.h"
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/*********************************************************************
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* LOCAL FUNCTIONS
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*/
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void NMI_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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void HardFault_Handler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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void BB_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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void ETH_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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void TIM2_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
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/*********************************************************************
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* @fn NMI_Handler
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*
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* @brief This function handles NMI exception.
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*
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* @return None
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*/
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void NMI_Handler(void)
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{
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}
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/* 故障诊断现场: .noinit 段 (复位不清零) */
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FaultDiag g_fault_diag __attribute__((section(".noinit")));
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/*********************************************************************
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* @fn fault_diag_init
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*
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* @brief main 开头调用: 打印上次复位现场 + 重置 + 递增 boot_cnt
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*
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* @return none
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*/
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void fault_diag_init(void)
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{
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if (g_fault_diag.magic == 0xFA57FA57UL) {
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PRINT("FAULT_DIAG: boot_cnt=%lu mcause=0x%08lx mepc=0x%08lx mtval=0x%08lx marker=0x%08lx\n",
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(unsigned long)g_fault_diag.boot_cnt,
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(unsigned long)g_fault_diag.mcause,
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(unsigned long)g_fault_diag.mepc,
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(unsigned long)g_fault_diag.mtval,
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(unsigned long)g_fault_diag.marker);
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}
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/* 重置现场, boot_cnt 保留递增 */
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g_fault_diag.magic = 0;
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g_fault_diag.mcause = 0;
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g_fault_diag.mepc = 0;
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g_fault_diag.mtval = 0;
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g_fault_diag.marker = 0;
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g_fault_diag.boot_cnt++;
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}
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/*********************************************************************
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* @fn HardFault_Handler
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*
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* @brief This function handles Hard Fault exception.
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*
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* @return None
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*/
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void HardFault_Handler(void)
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{
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/* 纯 RAM 写现场 (不依赖 UART/printf): 栈坏/中断禁用也能留痕 */
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g_fault_diag.magic = 0xFA57FA57UL;
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g_fault_diag.mcause = __get_MCAUSE();
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g_fault_diag.mepc = __get_MEPC();
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g_fault_diag.mtval = __get_MTVAL();
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/* 尽力打印 (UART 可用时), 失败不影响 RAM 现场 */
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PRINT("HARDFAULT: mcause=0x%08lx mepc=0x%08lx mtval=0x%08lx\n",
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(unsigned long)g_fault_diag.mcause,
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(unsigned long)g_fault_diag.mepc,
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(unsigned long)g_fault_diag.mtval);
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NVIC_SystemReset();
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while(1)
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{
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}
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}
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/*********************************************************************
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* @fn BB_IRQHandler
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*
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* @brief BB Interrupt for BLE.
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*
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* @return None
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*/
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void BB_IRQHandler(void)
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{
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BB_IRQLibHandler();
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}
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/*********************************************************************
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* @fn ETH_IRQHandler
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*
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* @brief This function handles ETH exception.
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*
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* @return none
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*/
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void ETH_IRQHandler(void)
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{
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WCHNET_ETHIsr();
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}
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void TIM2_IRQHandler( void )
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{
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WCHNET_TimeIsr(WCHNETTIMERPERIOD);
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TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
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}
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