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1、【增加】STM32F10X 裸机平台 Demo 的说明文档。

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Signed-off-by: armink <armink.ztl@gmail.com>
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armink 2016-12-28 15:53:47 +08:00
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demo/non_os/stm32f10x/README.md
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# stm32f10x non-os Demo # stm32f10x non-os Demo
--- ## STEP 1
马上就来…… 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。
## STEP 2
将程序下载至开发板，并将其串口1 与电脑串口连接。
## STEP 3
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：
```
Firmware name: CmBacktrace, hardware version: V1.0.0, software version: V0.1.0
Fault on interrupt or bare metal(no OS) environment
====== Main stack information ======
addr: 20001140 data: 00000000
addr: 20001144 data: e000ed14
addr: 20001148 data: 0000000a
addr: 2000114c data: 00000000
addr: 20001150 data: a046ac2b
addr: 20001154 data: 08000145
addr: 20001158 data: e000ed14
addr: 2000115c data: 08003143
====================================
=================== Registers information ====================
R0 : 00000000 R1 : 200012ec R2 : 00000000 R3 : 00000000
R12: 00008080 LR : 08000145 PC : 08000a60 PSR: 61000000
==============================================================
Usage fault is caused by Indicates a divide by zero has taken place (can be set only if DIV_0_TRP is set)
Show more call stack info by run: addr2line -e CmBacktrace.out -a -f 08000a60 08000141 0800313f
```
## STEP 4
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 08000a60 08000141 0800313f` 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%20to%20use%20addr2line%20for%20call%20stack.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：
```
D:\Program\STM32\CmBacktrace\demo\non_os\stm32f10x\EWARM\stm32f103xE\Exe>addr2line -e CmBacktrace.out -a -f 08000a60 08000141 0800313f
0x08000a60
fault_test_by_div0
D:\Program\STM32\CmBacktrace\demo\non_os\stm32f10x\app\src/fault_test.c:38
0x08000141
main
D:\Program\STM32\CmBacktrace\demo\non_os\stm32f10x\app\src/app.c:20
0x0800313f
_call_main
??:?
D:\Program\STM32\CmBacktrace\demo\non_os\stm32f10x\EWARM\stm32f103xE\Exe>
```