蓝牙工程监控

StdPeriphDriver/CH59x_sys.c

@@ -263,9 +263,41 @@ void WWDG_ClearFlag(void)
  */
 __INTERRUPT
 __HIGH_CODE
-__attribute__((weak))
+__attribute__((weak)) void HardFault_Handler(void)
-void HardFault_Handler(void)
 {
+    // https://www.cnblogs.com/gscw/p/18159920
+    // 监控函数和 PC 指针可以同时使用。监控函数需要在蓝牙工程中使用才有意义，如果打印值为空，检查是否使用蓝牙。
+    struct __MEMORY_CTL
+    {
+        struct __MEMORY_CTL *pNext;
+        uint16_t len;
+        uint16_t used;
+    };
+    typedef struct __MEMORY_CTL MemoryCtl;
+
+    extern MemoryCtl *MemCtlStart;
+    extern MemoryCtl *MemCtlEnd;
+    MemoryCtl *MemHead;
+    MemHead = MemCtlStart;
+    while (MemHead != MemCtlEnd)
+    {
+        printf("|%8x,%8x,%8d.....\n", MemHead->used, (uint32_t)MemHead,
+               (uint32_t)(MemHead->pNext) - (uint32_t)MemHead - sizeof(struct __MEMORY_CTL));
+        MemHead = MemHead->pNext;
+    }
+    printf("\n");
+
+    uint32_t v_mepc, v_mcause, v_mtval;
+    printf("hardfault\n");
+
+    v_mepc   = __get_MEPC();
+    v_mcause = __get_MCAUSE();
+    v_mtval  = __get_MTVAL();
+
+    printf("mepc:%08x\n", v_mepc);
+    printf("mcause:%08x\n", v_mcause);
+    printf("mtval:%08x\n", v_mtval);
+#if 0
     FLASH_ROM_SW_RESET();
     sys_safe_access_enable();
     R16_INT32K_TUNE = 0xFFFF;
@@ -273,6 +305,7 @@ void HardFault_Handler(void)
     sys_safe_access_enable();
     R8_RST_WDOG_CTRL |= RB_SOFTWARE_RESET;
     sys_safe_access_disable();
+#endif
     while (1);
 }
 
@@ -372,8 +405,7 @@ int _write(int fd, char *buf, int size)
  *
  * @return  size: Data length
  */
-__attribute__((used))
+__attribute__((used)) void *_sbrk(ptrdiff_t incr)
-void *_sbrk(ptrdiff_t incr)
 {
     extern char _end[];
     extern char _heap_end[];
@@ -385,5 +417,3 @@ void *_sbrk(ptrdiff_t incr)
     curbrk += incr;
     return curbrk - incr;
 }
-
-