重定向VxWorks串行输入 [英] Redirect VxWorks Serial Input

问题描述

我正在尝试将所有串行数据重定向到VxWorks中的进程。使用以下代码

I am trying to redirect all serial data to a process in VxWorks. Using the following code

fd = open("/tyCo/0", O_RDWR,0);
ioctl(fd, FIOSETOPTIONS, OPT_TERMINAL & ~OPT_7_BIT);
read(fd, line, 100);

提供正确的输入，除了不填充输入的第一个字符，而是将其打印到终端上。因此，如果我输入 Hello，则会打印出 H，并显示line = ello。如果我什么都没输入并按回车键，我会从VxWorks Shell收到提示。

gives the correct input, except the first character entered is not populated, but is printed to the terminal. So if I enter "Hello", "H" is printed out and line="ello". If I don't enter anything and hit the return key, I get a prompt from the VxWorks Shell.

我认为VxWorks Shell正在截获VxWorks Shell的第一个字母。数据。我的猜测是，我只需要将STDIO重定向到新进程，但是所有文档我发现该文档使用的是ioGlobalStdSet（），而ioGlobalStdSet（）在VxWorks 6.4 RTP中不可用。如何重定向STDIO或从进程中杀死VxWorks Shell？

I think that the VxWorks Shell is intercepting the first letter of the data. My guess is that I have to redirect STDIO to the new process only, but all the documentation I've found on that says to use ioGlobalStdSet() which is unavailable in VxWorks 6.4 RTP. How can I either redirect STDIO or kill the VxWorks Shell from my process?

推荐答案

在VxWorks配置和编译过程中禁用Shell会删除问题永久存在。也可以在shell上输入exit来暂时将其禁用。

Disabling the shell during VxWorks configuration and compilation removed the problem permanently. It is also possible to enter exit at the shell to temporarily disable it.

这篇关于重定向VxWorks串行输入的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！