5 Hardfult 对齐异常 UNALIGNED

发布于 2025-01-14 21:54:11 浏览：43 订阅该版

1.使用O3编译，正常运行。
2.使用OZ编译，报UNALIGNED异常。
3.全局使用Oz编译，对ipc.c文件单独O3编译，正常运行。

```c
00> msh >psr: 0x61000000
00> r00: 0x2000bcf6
00> r01: 0x00000000
00> r02: 0x00000204
00> r03: 0x200344ef
00> r04: 0x20002458
00> r05: 0x00000204
00> r06: 0x2003443c
00> r07: 0x2000bcf6
00> r08: 0x2001bbfe
00> r09: 0xdeadbeef
00> r10: 0xdeadbeef
00> r11: 0xdeadbeef
00> r12: 0x00000000
00>  lr: 0x0802e0cf
00>  pc: 0x0802e0d4
00> hard fault on thread: AutoPilotRun
00> thread           pri  status      sp     stack size max used left tick  error
00> ---------------- ---  ------- ---------- ----------  ------  ---------- ---
00> AutoPilotRun       1  ready   0x000001b4 0x00002800    07%   0x00000002 000
00> Monitoring         5  suspend 0x00000064 0x00000200    19%   0x00000005 000
00> DynaParam_thread   5  suspend 0x0000006c 0x00001000    02%   0x00000005 000
00> tshell             6  ready   0x0000004c 0x00002000    03%   0x0000000a -02
00> CAN1_MR            1  suspend 0x00000080 0x00000800    06%   0x00000005 000
00> CAN1_MS            1  suspend 0x00000080 0x00000200    25%   0x00000005 000
00> CAN0_MR            1  suspend 0x00000080 0x00000800    06%   0x00000005 000
00> CAN0_MS            1  suspend 0x00000080 0x00000200    25%   0x00000005 000
00> COM2_MR            1  suspend 0x00000078 0x00000800    05%   0x00000005 000
00> COM2_MS            1  suspend 0x00000078 0x00000800    05%   0x00000005 000
00> COM1_MR            1  suspend 0x00000078 0x00002000    01%   0x00000005 000
00> COM1_MS            1  suspend 0x00000078 0x00001000    02%   0x00000005 000
00> COM0_MR            1  suspend 0x00000078 0x00000800    05%   0x00000005 000
00> COM0_MS            1  suspend 0x00000078 0x00000800    05%   0x00000005 000
00> tidle             15  ready   0x0000005c 0x00000100    35%   0x00000004 000
00> timer              4  suspend 0x00000044 0x00000200    13%   0x0000000a 000
00> main               4  suspend 0x00000064 0x00000800    15%   0x00000011 000
00> FPU active!
00> usage fault:
00> SCB_CFSR_UFSR:0x100 UNALIGNED 
```