请问28335进行浮点运算怎么配置呢

无知的萝卜

请问28335进行浮点运算怎么配置呢 [复制链接]

我是新手，看了下controlSUITE里的example 中的 fpu_hardware
看了下前面的注释

1. //###########################################################################
   
2. // Description:
   
3. //! \addtogroup f2833x_example_list
   
4. //! <h1>Floating Point Unit (fpu_hardware)</h1>
   
5. //!
   
6. //! The code calculates two y=mx+b equations.  The variables are all
   
7. //! 32-bit floating-point.
   
8. //!
   
9. //! The compiler will generate floating point instructions to do these calculations.
   
10. //! To compile the project for floating point, the following Build Options were used:
    
11. //! -# Project->Properties-> C/C++ Build window-> Basic Settings->
    
12. //! C2000 Compiler Vx.x \n
    
13. //! In All Options textbox: add "--float_support=fpu32" . \n
    
14. //! OR in Runtime Model Options, under "Specify floating point support
    
15. //! (--float_support) pull-down menu: Select "fpu32".
    
16. //! -# Project->Properties-> C/C++ Build window-> Basic Settings->
    
17. //! C2000 Linker Vx.x-> File Search Path \n
    
18. //! In "Include linker file or command file as input (--library, -l)"
    
19. //! box, click green plus sign and add  rts2800_fpu32.lib
    
20. //! (run-time support library).
    
21. //! -# Not included in this example: If the project includes any other libraries,
    
22. //! they must also be compiled with floating point instructions.
    
23. //!
    
24. //! \b Watch \b Variables \n
    
25. //! - y1
    
26. //! - y2
    
27. //! - FPU registers (optional)

复制代码

貌似需要配置CCS，但是我按照这个顺序来Project->Properties-> C/C++ Build window-> Basic Settings->  
发现根本木有C/C++ Build window-

//! OR in Runtime Model Options, under "Specify floating point support
//! (--float_support) pull-down menu: Select "fpu32".
也没找到Specify floating point support 和有选择fpu32的下拉菜单


请问要用到浮点运算应该怎么做呢？

dontium

这个不算吗？

dontium

要设置几个协处理器，

看看手册，有什么就设置什么（335有浮点处理器就设置它，没有CLA就不设置它）

无知的萝卜

dontium 发表于 2015-9-18 21:44
要设置几个协处理器，

看看手册，有什么就设置什么（335有浮点处理器就设置它，没有CLA就不设置它）

...

原来如此~ 谢谢啦