# Nuttx7.17

**Repository Path**: onewayout/Nuttx7.17

## Basic Information

- **Project Name**: Nuttx7.17
- **Description**: Nuttx 7.17 study
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2019-01-12
- **Last Updated**: 2022-11-15

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## compile success 2016.7.31
git clone the nuttx repository from the official website.
载apps, 放在同级文件夹中, both checkout nuttx_7.17
checkout 7.17
issue the commands as below:
~~~
cd nuttx
make distclean
cd tools
./configure.sh sim/nsh
cd ..
make
~~~
Note the executable file nuttx is hidden (could be seen in terminal by "ls -a"). 

In terminal, execute: ./nuttx
login: admin
password: Administrator

refer to [here](https://github.com/ros2/ros2_embedded_nuttx/issues/11)

## run example hello:
~~~
mount -t binfs /bin
~~~

may need to set CONFIG_FS_BINFS as false in config files.

refer to [this page](http://nuttx.yahoogroups.narkive.com/SBGfhnp5/issues-running-builtin-apps)

## debug
install ddd,
~~~
sudo apt-get install ddd

ddd nuttx &
~~~

ddd is too old, use nemiver instead, it's awesome.

## setjmp longjmp
仿真时还使用了汇编的up_setjmp, 和up_longjmp函数。



可使用ddd下方窗口输入调试命令，或点击悬浮窗口的各按钮进行各种调试操作。

refer to [this page](https://acassis.wordpress.com/2014/11/01/running-nuttx-in-the-simulator/)


###  ddd　奇怪问题
可能由于不正常关闭ddd, 导致启动ddd时一直忙等待，底部状态栏显示：opening session......
使用如下命令删除： ~/.ddd ，重启ddd，正常。
~~~
    sudo rm -rf ~/.ddd
~~~

## ddd 使用
mirage1993.blog.51cto.com/2709744/175075623
fork时同时调试父进程和子进程
https://wizardforcel.gitbooks.io/100-gdb-tips/content/set-detach-on-fork.html