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TMS320F28377S: Create a contiguous binary for RAM execution in CCS

Frank Richter
Prodigy 80 points
Part Number: TMS320F28377S
Other Parts Discussed in Thread: C2000WARE

Tool/software:

I have created a CCS 20.0.1.4 project for the TMS320F28377S. Now I have to adjust this project so that it is runnable in RAM.
A colleague wants to load this program into RAM via JTAG and execute it by setting the instruction counter to the startaddress and enter real-time mode.
He needs a contiguous binary file (*.bin) from me, that is runnable in the RAM.

My questions are: How I have to adjust my CCS project to runnable in the RAM and how can I create this binary file with CCS?

Many thanks.

  • 0
    TI__Genius 14171 points

    Hi Frank,

    When you created this project in CCS, did you create it using an empty project from TI Resource explorer or C2000WARE SDK? If so, these typically come with multiple build configurations for RAM and FLASH. You can change the build configuration from the project by right clicking and selecting the option to change the build configuration. If you don't have that option, you can also use RAM by importing a RAM based linker command file (found in device_support folder) from our SDK.

    The project output is a .out file, this is the binary file which should be able to be loaded on the device

    Regards,

    Peter

  • 0 in reply to Peter Luong1
    TI__Genius 14171 points

    If you manually add a linker command file, be sure to exclude the FLASH linker command file from build or you will get a build warning saying the parts of memory are being dual-allocated

    Regards

    Peter

  • 0 in reply to Peter Luong1
    Prodigy 80 points

    Hi Peter,

    thank you very much for the quick reply. Yes, I can select the build configuration for RAM. But how do I get all the data to be in a contiguous area? With the linker command file?
    I need the pure data that should be in RAM as a binary file. The .out file is not suitable for this. I think a have to use the “C2000 Hex Utility” for this.

    Regards,

    Peter

  • 0 in reply to Frank Richter
    TI__Genius 14171 points

    Hi Frank,

    Yes, you can adjust the linker command file to finetune the placement of the memory blocks used in the program. Refer to the memory map available in the datasheet to be sure you are accessing valid parts of the memory. 

    From my understanding of the C2000 Hex Utility, the generated format is .hex. You will need to have a post-build step to further compile that into the necessary .bin file

    Regards,

    Peter

  • +1 in reply to Peter Luong1
    Prodigy 80 points

    Hi Peter,

    I got it to work.

    I have combined all LSx RAM areas in the linker command file to one area and removed all others areas to get a contiguous area. Then I placed all sections to this area and set “codestart” to the RAM start address.

    I used C2000 Hex Utility with following parameters to get the binary.

    --romwidth=16 --swapbytes --diag_wrap=off --binary

    Thank you.

    Regards,

    Frank