将应用从Linux转换为PIC32时缺少标准C库

“标准”是你参考的C标准吗？你肯定他们失踪了吗？或者它们是你桌面上的常用插件。比如说不够好。确切地说，你认为缺少什么。



      以下为原文

    “Standard” which c standard are you referinf to? Are you positive they are missing. Or they are common add ins from you desk top compiler.
For instance is not good enough.
Exactly what do you think is missing.

作为背景，Linux应用程序是使用GCC 4.63.开发的。XC32版本是2.05，和声2.05.01.目前丢失的文件是UNISTD.H。我知道这应该与一些普通的C接口范围之外的移植工作有关，但只是想知道为什么这个头在XC32遗留模式中存在，而不是在非遗留模式中。EXILIBS（sys／Socket，h，TCPI/TCPIP.H）不应该存在于XC32中。但是解决这些问题的通常方式（或最聪明的方法）是什么？通过手动重写函数？通过编写翘曲函数？或者在我可以使用的Hyror／Fielttos/IP栈中有一些类似的LIBS？我对和声和RTOS很陌生，不知道什么是通常的工作流程。有趣的是，当我用和声重新生成代码时，报告了H或其他基本的.H文件遗失。我必须重新启动MPLAB并再次生成代码以解决它。



      以下为原文

    As a background, the linux app is developed using gcc 4.6.3. The XC32 version is 2.05, Harmony 2.05.01.
 
At the moment the missing file is unistd.h. I know this should be related to some porting work that is out of the common C interface scope, but just wonder why this header exist in XC32 legacy mode but not in non-legacy mode.
 
On the other hand, some higher level libs (sys/socket.h, tcpip/tcpip.h) are supposed not to be exist in XC32. But what is the usual way (or smartest way) to resolve them? By manually rewrite the function? By writing warpper function? Or even there was some similar libs in Harmony/FreeRTOS/IP stacks I can use? I'm so new to Harmony and RTOS and have no idea about what is the usual workflow.
 
It is also funny that time.h or other basic .h files are reported to be missing after I re-generate the code using Harmony. I have to reboot the MPLAB and generate the code again to make it resolved.

XC32是基于GCC的。如果和声不包括你需要的标题。Freertos是PIC32和XC32的端口。这是一个独立的问题。Linux是一个完整的操作系统。你不能指望像插座和时间这样的工作。您需要将RTC连接到完整功能的时间库。和谐将提供伯克利套接字，但不具备Linux的所有特性。如果你有一个完整的独立的Linux程序可能不只是下降。嵌入式C端口较小。



      以下为原文

    Xc32 is based on GCC.
If Harmony does not include the headers you need to. Freertos is a port for PIC32 and Xc32. It is a seperate issue. Linux is a full os. You can not expect things like sockets and time to just work. You need to connect your rtc to the time library for full functionality.
Harmony will give you Berkeley sockets, but not with all the features of Linux. If you have a full stand alone Linux program may not just drop in. Embedded C ports are smaller.

谢谢你的信息。看来我低估了移植的工作量。



      以下为原文

    Thanks for your info. It seems that I've underestimated the workload on porting.
 
 

有一个Linux端口在PIC32 MZ…



      以下为原文

    There is kicking around somewhere a Linux port for the PIC32 MZ..DA.

我在DDA的DePaBoD游戏，真的令人印象深刻。只是我们正在努力使用ARM+Linux的规格，这有更多的支持和产品可供选择。无论如何，我们将尝试PIC32 + FreRTOS，然后DA+Linux，最后ARM+Linux。



      以下为原文

   


I've played around the devbaord of DA, really impressive.
Just we are struggling to use ARM+Linux for that spec, which have more support and product to choose from.
Anyway we will try the PIC32+FreeRTOS then DA+Linux and finally ARM+Linux.