Usage of TI's flash library (with boot mode == "run to flash")

Hello Kevin,
first, thanks for your reply!
Unfortunately, my CCS installation contains controlSUITE

Sorry, my last reply was nonsense, so again:

Hello Kevin,

first, thanks for your reply!

Unfortunately, my CCS (V. 8.2.0) installation contains controlSUITE instead of C2000Ware.

Moreover, I must state that I'm really not yet familiar with the CCS - Environment, so there's a lot of things being hard to interpret.

And I'm not familiar with TI's linker cmd files...

But --  if I understood you right -- I should use the call:

      "CopyMem ( &Flash28_API_LoadStart, &Flash28_API_LoadEnd, &Flash28_API_RunStart ); "

instead of (??????)

     "CopyMem ( &RamfuncsLoadStart, &RamfuncsLoadEnd, &RamfuncsRunStart );"

when I use the flash library in C: \ti\controlSUITE\libs\.  

About the the linker file as pasted (in part) at bottom:

The green portion had been commented in the original file; I uncommented it, since we don't use the
bootROM-API but the library's API.
The black part wasn't commented. I don't know for sure what to do with it,
since I don't really understand how  the cited  pragma

   #pragma CODE_SECTION(Example_CallFlashAPI,"ramfuncs");

works together with the black linker file entry below.

For instance, in our program, there is an additional function (in assembly) that establishes a label in the "ramfuncs" section:

========= citation: ==============================

      .def _DSP28x_usDelay
       .sect "ramfuncs"

        .global  __DSP28x_usDelay
_DSP28x_usDelay:
        SUB    ACC,#1
        BF     _DSP28x_usDelay,GEQ    ;; Loop if ACC >= 0
        LRETR
==============================================

Would the above pragma statement add a further label "__Example_CallFlashAPI" to section "ramfuncs"?
Or what else happens?

So far for the moment, best regards

Goetz

==================== Linker file extract ==========================================

[Could not be attached: (apparently, attaching/inserting a file does not work correctly)].

 

// Flash28_API: Added according to example linker-cmd: Example_Flash28069_API.cmd
SECTIONS
{

   Flash28_API: // Applicable only when API is not in BootROM
   {
        -lFlash2802x_API_V100a.lib(.text)
   }                   LOAD = FLASHD,
                       RUN = PRAML0,
                       LOAD_START(_Flash28_API_LoadStart),
                       LOAD_END(_Flash28_API_LoadEnd),
                       RUN_START(_Flash28_API_RunStart),
                       PAGE = 0

   /* Allocate program areas: */
   .cinit              : > FLASHA,     PAGE = 0
   .pinit              : > FLASHA,     PAGE = 0
   .text               : > FLASHA,     PAGE = 0
   codestart           : > BEGIN,      PAGE = 0

 //  ramfuncs            : > RAMM0,      PAGE = 0

   ramfuncs            : LOAD = FLASHD,
                         RUN = RAML4,
                         LOAD_START(_RamfuncsLoadStart),
                         LOAD_END(_RamfuncsLoadEnd),
                         RUN_START(_RamfuncsRunStart),
                         LOAD_SIZE(_RamfuncsLoadSize),
                         PAGE = 0

...

...

Hi Goetz,

The ControlSuite (v100a) and c2000ware example and Flash API library look to be the same. However I'd still suggest downloading the latest C2000ware at some point since it will be actively updated going forward.

You should MemCopy both Ramfuncs and the Flash28_API actually. Ramfuncs would be used for functions that need to be run from RAM, but are not necessarily the Flash API functions.

By default the example is configured to use/copy the Flash API from the BootROM, but can be configured to use/copy the Flash API from Flash by changing the build configuration. Follow the below steps, the example and files should be able to answer all your questions:

Right click the project name in the 'Project Explorer' --> Scroll over 'Build Configurations' --> Scroll over 'Set Active' --> select 'Use_SW_API

This will configure the example accordingly, using the linker command file 'Example_Flash2806x_SW_API.cmd' and altering the 'Example_Flash2806x_API.c' file somewhat (see' #ifdef SW_API').

Hope this helps,

Kevin

Hi Kevin,

just tried your suggestion with my project, but it doesn't yield a 'Use_SW_API' entry in
the 'Build config/Set Active' menu.
So, I'll try it with one of the example projects of 'controlSuite'.
But it is late now (16:30) in Germany and I'll continue tomorrow.

I assume you reside in USA, so possibly we'll have no more occasion to communicate
tomorrow -- due to time shift -- before I'll be in vacation until Jan, 07th.

So, I wish happy xmas and a fine new year in advance!
Regards, Goetz

Hi Goetz,

Make sure you're using the v100a example if using ControlSuite. You might need to update your version if it still doesn't appear.

C:\ti\controlSUITE\libs\utilities\flash_api\2806x\v100a\Example_Flash2806x_API

That's correct. Thanks Goetz, you have the same! Going to close this thread for the time being, feel free to post once you get back.

Best,

Kevin