LAUNCHXL-F28069M: How boot in stand alone mode

Hello

There are different ways to define size of code, that must be copied. For example, in my "F28069.cmd" I have such part of the script:

 
   ramfuncs            : LOAD = FLASHD,
                         RUN = RAML0,
                         LOAD_START(_RamfuncsLoadStart),
                         LOAD_END(_RamfuncsLoadEnd),
                         RUN_START(_RamfuncsRunStart),
			 LOAD_SIZE(_RamfuncsLoadSize),
                         PAGE = 0

This part of script tells the linker, that part of code must be STORED in flash memory, but RUN from ram memory. And you tell linker to save address of flash, where code is stored, save address of ram, where the code must be copied to and save size of the code, that must be copied.

I suggest two ways to get _RamfuncsLoadSize:

1) Try to add string "LOAD_SIZE(_RamfuncsLoadSize)" to your cmd script just like in the code example above. I'm not sure if this is compatible with old linkers (I use compiler v.17.9.0), but it is the easiest way.

2) If it doesn't work, that in your "main.c" declare variable "extern Uint16 RamfuncsLoadEnd;" instead of "extern Uint16 RamfuncsLoadSize;". Then in "memcpy()" function pass "(size_t)(&RamfuncsLoadEnd - &RamfuncsLoadStart)" instead of "(size_t)&RamfuncsLoadSize)". You can do it, because actually SIZE = ENDaddress - STARTaddress.

Dear Disona,
Thanks again. I tried both options but still it is not working. it shows the warning "creating output section "ramfuncs" without a SECTIONS specification". what did you mean by old linkers.Do I need to update my compiler version. Is there any problem using  "DELAY_US(1000*1000);" function in this example. It will be very helpful If you can give me a link to become a c2000 programming expert or some guidance to learn from the beginning.
Thank you.
Regards,
Buddhika

Hm, that's strange. That warning means that you have some functions, which must be pplaced into special section "ramfuncs" (that will be copied from flash to ram), but you have not described the section in your cmd file. It's strange, because this section must be in "F28069.cmd"

Can you try to copy the attached file into your project? But delete other "F28069.cmd" or "28069_RAM_lnk" files from the project. Be careful, and do not delete "F2806x_Headers_nonBIOS.cmd". So you must have two "cmd" files in your project: "F28069M.cmd" (it's attached to this post) and "F2806x_Headers_nonBIOS.cmd" (it's a linker script with peripherals, it is needed). Then go to project properties, tab "General" and make sure, that "Linker command file" option is empty. If it is not - make it empty. This is needed, because the compiler must take "F28069M.cmd" from your project.

You can check your build tools (compiler+linker+assembler+etc.) on the same "General" tab in project properties. If you have v15.x.x and higher - it's ok.

Where do you have problem with "DELAY_US"? What is the problem? The project doesn't compile? Or the program hangs? 

If you want to upgrade your skills with C2000, maybe you should take a look at workshops:

F28069M.zip