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54 lines
2.5 KiB
Markdown
54 lines
2.5 KiB
Markdown
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# stm32f10x UCOSII Demo
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## STEP 1
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文件夹 `RVMDK` 下为 Keil 工程，`EMARM` 下为 IAR 工程。打开工程后，在 `app/src/app.c` 中有 `fault_test_by_unalign()` 及 `fault_test_by_div0()` 两个 HardFault 测试函数，可以选择性的执行测试函数。
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## STEP 2
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将程序下载至开发板，并将其串口1 与电脑串口连接。
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## STEP 3
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电脑上打开该串口，串口配置 115200 8 1 N ，给开发板上电，即可看到类似如下的输出信息，故障原因也已被准确的诊断出来：
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```
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Firmware name: CmBacktrace, hardware version: V1.0.0, software version: V0.1.0
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Fault on thread app_start
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===== Thread stack information =====
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addr: 200024d8 data: 03030303
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addr: 200024dc data: 00000000
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addr: 200024e0 data: 05050505
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addr: 200024e4 data: 06060606
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addr: 200024e8 data: 07070707
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addr: 200024ec data: 08000195
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addr: 200024f0 data: 04040404
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addr: 200024f4 data: 08001c99
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====================================
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=================== Registers information ====================
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R0 : 00000000 R1 : 01010101 R2 : 02020202 R3 : 03030303
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R12: 12121212 LR : 08000195 PC : 08001d24 PSR: 41000000
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==============================================================
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Usage fault is caused by Indicates a divide by zero has taken place (can be set only if DIV_0_TRP is set)
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Show more call stack info by run: addr2line -e CmBacktrace.out -a -f 08001d24 08000191 08001c95
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```
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## STEP 4
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打开电脑上的命令行工具，进入项目工程的可执行文件所在路径（Keil 一般在 `Output` 下，可执行文件后缀 `.axf`；IAR 一般在 ` Exe` 下，可执行文件后缀 `.out`），将 STEP 3 最后输出的 `addr2line -e CmBacktrace.out -a -f 08001d24 08000191 08001c95` 拷贝至控制台，并执行（[点击查看 addr2line 工具的使用教程](https://github.com/armink/CmBacktrace/blob/master/docs/zh/how_to_use_addr2line_for_call_stack.md)），可看到类似如下，包含函数名称及代码行号的函数调用栈信息：
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```
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D:\Program\STM32\CmBacktrace\demos\os\ucosii\stm32f10x\EWARM\stm32f103xE\Exe>addr2line -e CmBacktrace.out -a -f 08001d24 08000191 08001c95
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0x08001d24
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fault_test_by_div0
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D:\Program\STM32\CmBacktrace\demos\os\ucosii\stm32f10x\app\src/fault_test.c:38
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0x08000191
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AppTaskStart
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D:\Program\STM32\CmBacktrace\demos\os\ucosii\stm32f10x\app\src/app.c:49
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0x08001c95
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OSTaskSuspend
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D:\Program\STM32\CmBacktrace\demos\os\ucosii\stm32f10x\ucosii\Source/os_task.c:1006
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D:\Program\STM32\CmBacktrace\demos\os\ucosii\stm32f10x\EWARM\stm32f103xE\Exe>
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```
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