TMS320F28377S: LS 05 Ram does not get loaded with ClaProg program code

Marlo Gothe

Part Number: TMS320F28377S
Other Parts Discussed in Thread: C2000WARE, CCSTUDIO

I am working on proof of function of the CLA on a TMS320F28377S. Well am certain it works, but demonstrating it works in our code base is the question.

I am using the mathworks example c28377Sblink_cla, that generates CLA code as prototype. I modified the mathworks example to be even simpler.

In the end I have a .cla and .c files from the code generator. using the mathworks linker control file, I added the code and modified an existing linker control file.

In Flash:

Cla1funcsLoadStart
75D0   8100   74C0   00F4   7AC0   810C   7590   003C   7BC0   003D   7BC0   003C   7B40   003D   7B80   003C   7BC0   003C   7B80
0004   7F20   0000   7FA0   0000   7FA0   0000   7FA0   0024   7981   0000   7FA0   0000   7FA0   0000   7FA0   8106   7580   0000
7841   003C   7BC0   003C   7B80   0004   7F20   0000   7FA0   0000   7FA0   0000   7FA0   0008   7981   0000   7FA0   0000   7FA0
0000   7FA0   8106   7580   810C   75C0   4502   7841   8100   73C0   3000   7881   0004   7C20   8102   74C0   8100   73C0   4502
7841   00F0   7A80   3000   7881   0004   7C20   8104   74C0   0000   7842   406B   7580   0000   7841   FFFF   7882   0004   7C60
8102   73D0   0005   7EA0   0019   7C60   0004   7C80   406B   75C0   0000   7842   0000   7841   FFFF   7882   416B   7580   0004
7C60   8104   73D0   0005   7EA0   0019   7C60   0004   7C80   416B   75C0   0000   79AF   0000   7FA0   0000   7FA0   0000   7FA0
8108   73C0   1480   74C0   3842   7841   1502   73C0   2E45   7881   0004   7C00   40C9   7841   0FDB   7881   810A   0110   0004
7C20   8102   74C0   06D8   799F   0000   7FA0   0000   7FA0   0000   7FA0   0000   7D80   8100   74C0   40C9   7840   8102   73D0
0FDB   7880   0001   7D00   0000   7FA0   0000   7FA0   0000   7FA0   0018   7984   0000   7FA0   0000   7FA0   0000   7FA0   40C9
7840   0FDB   7880   0004   7C40   810A   74C0   000C   798E   0000   7FA0   0000   7FA0   0000   7FA0   00F4   7AC0   810A   74C0
0000   7841   8108   73C0   0001   7881   0004   7CC0   8108   74C0   0000   7FA0   0000   7FA0   0000   7FA0   0000   7F80
C$SW5, Cla1funcsLoadEnd

I LS 05 ram: is not loaded.

Cla1funcsRunStart, HAL_MODULATION_fnProcess, c
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
0000   0000   0000
C$L1
0000   0000   0000   0000
C$L2
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
Cla1Task1, c
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000   0000
C$L1

Linker command file:

RAMLS_CLA_PROG      : origin = 0x00A800, length = 0x000800
/* Control Law Accelerator (CLA) program code section */
Cla1Prog        : LOAD = FLASH_CODE,
                    RUN = RAMLS_CLA_PROG,
                    LOAD_START(_Cla1funcsLoadStart),
                    LOAD_END(_Cla1funcsLoadEnd),
                    RUN_START(_Cla1funcsRunStart),
                    LOAD_SIZE(_Cla1funcsLoadSize),
                    PAGE = 0, ALIGN(4)

related GEL file lines

*(int *)0x5F432 =0x003F; /* RAM INIT FOR LS0..LS5 Memory */

    /* Program memory maps */
    GEL_MapAddStr(0x00008000,0, 0x800, "R|W|AS2",0);                     /*   LS0 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x00008800,0, 0x800, "R|W|AS2",0);                     /*   LS1 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x00009000,0, 0x800, "R|W|AS2",0);                     /*   LS2 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x00009800,0, 0x800, "R|W|AS2",0);                     /*   LS3 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x0000A000,0, 0x800, "R|W|AS2",0);                     /*   LS4 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x0000A800,0, 0x800, "R|W|AS2",0);                     /*   LS5 RAM (with PARITY) (4KBytes)                         */

    /* Data memory maps */
    GEL_MapAddStr(0x00008000,1, 0x800, "R|W|AS2",0);                     /*   LS0 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x00008800,1, 0x800, "R|W|AS2",0);                     /*   LS1 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x00009000,1, 0x800, "R|W|AS2",0);                     /*   LS2 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x00009800,1, 0x800, "R|W|AS2",0);                     /*   LS3 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x0000A000,1, 0x800, "R|W|AS2",0);                     /*   LS4 RAM (with PARITY) (4KBytes)                         */
    GEL_MapAddStr(0x0000A800,1, 0x800, "R|W|AS2",0);                     /*   LS5 RAM (with PARITY) (4KBytes)                         */


Any comments?

Can gel commands blocking something?

thanks

over 5 years ago

0 Lori Heustess over 5 years ago

TI__Guru* 93800 points

Hello,

In the system initialization for the project, does the C28x perform a copy of code from flash to RAM? This will be for any C28x code you want to run from RAM as well as the CLA code. ?

There are examples of this in the C2000Ware driverlib examples for CLA.

Regards

Lori

0 Marlo Gothe over 5 years ago in reply to Lori Heustess

Prodigy 90 points

I will try tomorrow.

Thanks

0 Marlo Gothe over 5 years ago in reply to Marlo Gothe

Prodigy 90 points

I added the following lines to copy the code:

// <Step 2>: use void * memcpy ( void * destination, const void * source, size_t num )
  //           to copy over the "Cla1Prog" and ".const_cla" sections from Flash to RAM
  memcpy((uint32_t *)&Cla1ProgRunStart, (uint32_t *)&Cla1ProgLoadStart,
      (uint32_t)&Cla1ProgLoadSize );
  memcpy((uint32_t *)&Cla1ConstRunStart, (uint32_t *)&Cla1ConstLoadStart,
      (uint32_t)&Cla1ConstLoadSize );


but the code does not build;    the linker does not find those symbols.

Cla1ProgRunStart, Cla1ProgLoadStart, Cla1ProgLoadSize, ect.

I tried an example in the c200
C:\ti\c2000\C2000Ware_3_03_00_00\driverlib\f2837xs\examples\cpu1\cla
It too fails if I cause _FLASH to be 1.

Please advise on the next step

0 Marlo Gothe over 5 years ago in reply to Marlo Gothe

Prodigy 90 points

I was able to build the

C:\ti\c2000\C2000Ware_3_03_00_00\driverlib\f2837xs\examples\cpu1\cla

example, when set the configuration to FLASH

No how to make it work on my project?

where most of the lines in the .cproject have lines starting like this:

<option id="com.ti.ccstudio.buildDefinitions.C2000_18.1.linkerID.....

Im lost at the moment.

0 Lori Heustess over 5 years ago in reply to Marlo Gothe

TI__Guru* 93800 points

Marlo Gothe said:

the linker does not find those symbols.

Cla1ProgRunStart, Cla1ProgLoadStart, Cla1ProgLoadSize, ect.

In the C code these should be defined as extern since the linker itself will create them when it creates the section (refer to your linker .cmd file fragment in the first post)

extern uint32_t Cla1ProgRunStart, Cla1ProgLoadStart, Cla1ProgLoadSize .... .etc

You may find the "getting started" resources listed here helpful - in particular the CLA hands on workshop.

https://software-dl.ti.com/C2000/docs/cla_software_dev_guide/index.html

0 Marlo Gothe over 5 years ago in reply to Lori Heustess

Prodigy 90 points

Sorry for the delay,

With this code change:

extern uint32_t Cla1ProgRunStart, Cla1ProgLoadStart, Cla1ProgLoadSize;
extern uint32_t Cla1ConstRunStart, Cla1ConstLoadStart, Cla1ConstLoadSize;

memcpy((uint32_t *)&Cla1ProgRunStart, (uint32_t *)&Cla1ProgLoadStart,
(uint32_t)&Cla1ProgLoadSize );
memcpy((uint32_t *)&Cla1ConstRunStart, (uint32_t *)&Cla1ConstLoadStart,
(uint32_t)&Cla1ConstLoadSize );

undefined          first referenced
symbol                in file
---------          ----------------
_Cla1ProgLoadSize ./mbd/mbd_cla.obj
_Cla1ProgLoadStart ./mbd/mbd_cla.obj
_Cla1ProgRunStart ./mbd/mbd_cla.obj

error #10234-D: unresolved symbols remain
error #10010: errors encountered during linking;

-----------------------------------------------------------

If i comment out the program labels, it builds.

because at this moment there are no cla constants at this time

//extern uint32_t Cla1ProgRunStart, Cla1ProgLoadStart, Cla1ProgLoadSize;
//memcpy((uint32_t *)&Cla1ProgRunStart, (uint32_t *)&Cla1ProgLoadStart,
// (uint32_t)&Cla1ProgLoadSize );

we are using ccs8 and ccs9

Please advise again.

0 Lori Heustess over 5 years ago in reply to Marlo Gothe

TI__Guru* 93800 points

The names should match what is in the linker file. i.e. are you using Cla1funcs... or ClaProg...

This is what was in the original post?

0 Marlo Gothe over 5 years ago in reply to Lori Heustess

Prodigy 90 points

Hi Lori

Great, it builds now, no errors.

I need to confirm on the hardware which is the next step, the hardware setup i have access to is a shared resource, so hopefully i can confirm this this week.

Thanks

Marlo

0 Lori Heustess over 5 years ago in reply to Marlo Gothe

TI__Guru* 93800 points

Great, Thank you for letting me know.

Cheers

Lori

0 Marlo Gothe over 5 years ago in reply to Lori Heustess

Prodigy 90 points

We have the program code loaded, the CLA task does not seem to run.

evidence is the cla-2-cpu ram does not change nor any internal cla ram changes.

the algorithm is a simple counter. it suppose to run from timer0, it is happening at 21,000 times per second.

How to i approach debugging this,

are there cla error registers that might tell me things?

0 Marlo Gothe over 5 years ago in reply to Marlo Gothe

Prodigy 90 points

In CLA debug, the CLA program counter always sits at address 0x00B000, and increments from there.

0 Marlo Gothe over 5 years ago in reply to Marlo Gothe

Prodigy 90 points

I some how got the CLA executing (simplified the program to minimum)

This thread is complete.

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TMS320F28377S: LS 05 Ram does not get loaded with ClaProg program code