TMS320F280039C: PROBLEM: PROGRAM TO FLASH

SIBAPRASAD CHAKRABARTI

Intellectual 520 points

Part Number: TMS320F280039C
Other Parts Discussed in Thread: TMS320F280039

PROBLEM DEFINITION:

1. Using CCS to load code to LAUNCHXL_F280039 and could run the program from FLASH.

2. Now, I designed a uC board using 80 PIN TMS320F280039 processor.

3. Used LAUNCHXL_F280039, TMS and TCK in cJTAG mode and loaded the same code to the designed uC board in (2).

4. Looks like the code is running from RAM, NOT from FLASH. This is because I could see PWM signal issued by uC after CODE is loaded, however got vanished after POWER RESET.

please help,

Here is the .cmd file:

/////////////////////////////////////////////////////////////////

MEMORY
{
BEGIN : origin = 0x00080000, length = 0x00000002
BOOT_RSVD : origin = 0x00000002, length = 0x00000126

RAMM0 : origin = 0x00000128, length = 0x000002D8
RAMM1 : origin = 0x00000400, length = 0x000003F8
// RAMM1_RSVD : origin = 0x000007F8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

RAMLS0 : origin = 0x00008000, length = 0x00000800
RAMLS1 : origin = 0x00008800, length = 0x00000800
RAMLS2 : origin = 0x00009000, length = 0x00000800
RAMLS3 : origin = 0x00009800, length = 0x00000800
RAMLS4 : origin = 0x0000A000, length = 0x00000800
RAMLS5 : origin = 0x0000A800, length = 0x00000800
RAMLS6 : origin = 0x0000B000, length = 0x00000800
RAMLS7 : origin = 0x0000B800, length = 0x00000800

RAMGS0 : origin = 0x0000C000, length = 0x00001000
RAMGS1 : origin = 0x0000D000, length = 0x00001000
RAMGS2 : origin = 0x0000E000, length = 0x00001000
RAMGS3 : origin = 0x0000F000, length = 0x00000FF8
// RAMGS3_RSVD : origin = 0x0000FFF8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

BOOTROM : origin = 0x003F8000, length = 0x00007FC0
SECURE_ROM : origin = 0x003F2000, length = 0x00006000

RESET : origin = 0x003FFFC0, length = 0x00000002

/* Flash sectors */
/* BANK 0 */
FLASH_BANK0_SEC0 : origin = 0x080002, length = 0x000FFE
FLASH_BANK0_SEC1 : origin = 0x081000, length = 0x001000
FLASH_BANK0_SEC2 : origin = 0x082000, length = 0x001000
FLASH_BANK0_SEC3 : origin = 0x083000, length = 0x001000
FLASH_BANK0_SEC4 : origin = 0x084000, length = 0x001000
FLASH_BANK0_SEC5 : origin = 0x085000, length = 0x001000
FLASH_BANK0_SEC6 : origin = 0x086000, length = 0x001000
FLASH_BANK0_SEC7 : origin = 0x087000, length = 0x001000
FLASH_BANK0_SEC8 : origin = 0x088000, length = 0x001000
FLASH_BANK0_SEC9 : origin = 0x089000, length = 0x001000
FLASH_BANK0_SEC10 : origin = 0x08A000, length = 0x001000
FLASH_BANK0_SEC11 : origin = 0x08B000, length = 0x001000
FLASH_BANK0_SEC12 : origin = 0x08C000, length = 0x001000
FLASH_BANK0_SEC13 : origin = 0x08D000, length = 0x001000
FLASH_BANK0_SEC14 : origin = 0x08E000, length = 0x001000
FLASH_BANK0_SEC15 : origin = 0x08F000, length = 0x001000

/* BANK 1 */
FLASH_BANK1_SEC0 : origin = 0x090000, length = 0x001000
FLASH_BANK1_SEC1 : origin = 0x091000, length = 0x001000
FLASH_BANK1_SEC2 : origin = 0x092000, length = 0x001000
FLASH_BANK1_SEC3 : origin = 0x093000, length = 0x001000
FLASH_BANK1_SEC4 : origin = 0x094000, length = 0x001000
FLASH_BANK1_SEC5 : origin = 0x095000, length = 0x001000
FLASH_BANK1_SEC6 : origin = 0x096000, length = 0x001000
FLASH_BANK1_SEC7 : origin = 0x097000, length = 0x001000
FLASH_BANK1_SEC8 : origin = 0x098000, length = 0x001000
FLASH_BANK1_SEC9 : origin = 0x099000, length = 0x001000
FLASH_BANK1_SEC10 : origin = 0x09A000, length = 0x001000
FLASH_BANK1_SEC11 : origin = 0x09B000, length = 0x001000
FLASH_BANK1_SEC12 : origin = 0x09C000, length = 0x001000
FLASH_BANK1_SEC13 : origin = 0x09D000, length = 0x001000
FLASH_BANK1_SEC14 : origin = 0x09E000, length = 0x001000
FLASH_BANK1_SEC15 : origin = 0x09F000, length = 0x001000

/* BANK 2 */
FLASH_BANK2_SEC0 : origin = 0x0A0000, length = 0x001000
FLASH_BANK2_SEC1 : origin = 0x0A1000, length = 0x001000
FLASH_BANK2_SEC2 : origin = 0x0A2000, length = 0x001000
FLASH_BANK2_SEC3 : origin = 0x0A3000, length = 0x001000
FLASH_BANK2_SEC4 : origin = 0x0A4000, length = 0x001000
FLASH_BANK2_SEC5 : origin = 0x0A5000, length = 0x001000
FLASH_BANK2_SEC6 : origin = 0x0A6000, length = 0x001000
FLASH_BANK2_SEC7 : origin = 0x0A7000, length = 0x001000
FLASH_BANK2_SEC8 : origin = 0x0A8000, length = 0x001000
FLASH_BANK2_SEC9 : origin = 0x0A9000, length = 0x001000
FLASH_BANK2_SEC10 : origin = 0x0AA000, length = 0x001000
FLASH_BANK2_SEC11 : origin = 0x0AB000, length = 0x001000
FLASH_BANK2_SEC12 : origin = 0x0AC000, length = 0x001000
FLASH_BANK2_SEC13 : origin = 0x0AD000, length = 0x001000
FLASH_BANK2_SEC14 : origin = 0x0AE000, length = 0x001000
FLASH_BANK2_SEC15 : origin = 0x0AF000, length = 0x000FF0

// FLASH_BANK0_SEC15_RSVD : origin = 0x0AFFF0, length = 0x000010 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

CLA1_MSGRAMLOW : origin = 0x001480, length = 0x000080
CLA1_MSGRAMHIGH : origin = 0x001500, length = 0x000080
}

SECTIONS
{
.cinit : > FLASH_BANK0_SEC1, ALIGN(4)
.text : >>FLASH_BANK0_SEC2 | FLASH_BANK0_SEC3 | FLASH_BANK0_SEC4 | FLASH_BANK0_SEC5| FLASH_BANK0_SEC6 | FLASH_BANK0_SEC7, ALIGN(4)
codestart : > BEGIN, ALIGN(4)

.stack : > RAMM1
.switch : > FLASH_BANK0_SEC1, ALIGN(4)

#if defined(__TI_EABI__)
.init_array : > FLASH_BANK0_SEC1, ALIGN(4)
.bss : > RAMLS5
.bss:output : > RAMLS5
.bss:cio : > RAMLS5
.data : > RAMLS6
.sysmem : > RAMLS6
.const : > FLASH_BANK0_SEC4 ALIGN(4)
#else
.pinit : > FLASH_BANK0_SEC1 ALIGN(4)
.ebss : >>RAMLS5 | RAMLS6
.esysmem : > RAMLS6
.cio : > RAMLS5
.econst : > FLASH_BANK0_SEC4
#endif

ramgs0 : > RAMGS0
ramgs1 : > RAMGS1

.reset : > RESET, TYPE = DSECT /* not used, */

dclfuncs : > FLASH_BANK0_SEC1, ALIGN(4)

#if defined(__TI_EABI__)
/* CLA specific sections */
Cla1Prog : LOAD = FLASH_BANK0_SEC4,
RUN = RAMLS0,
LOAD_START(Cla1ProgLoadStart),
RUN_START(Cla1ProgRunStart),
LOAD_SIZE(Cla1ProgLoadSize),
ALIGN(4)
#else
/* CLA specific sections */
Cla1Prog : LOAD = FLASH_BANK0_SEC4,
RUN = RAMLS0,
LOAD_START(_Cla1ProgLoadStart),
RUN_START(_Cla1ProgRunStart),
LOAD_SIZE(_Cla1ProgLoadSize),
ALIGN(4)
#endif

Cla1ToCpuMsgRAM : > CLA1_MSGRAMLOW
CpuToCla1MsgRAM : > CLA1_MSGRAMHIGH

IQmath : > FLASH_BANK0_SEC1, ALIGN(8)
IQmathTables : > FLASH_BANK0_SEC2, ALIGN(8)

#if defined(__TI_EABI__)
.TI.ramfunc : LOAD = FLASH_BANK0_SEC1,
RUN = RAMLS4
LOAD_START(RamfuncsLoadStart),
LOAD_SIZE(RamfuncsLoadSize),
LOAD_END(RamfuncsLoadEnd),
RUN_START(RamfuncsRunStart),
RUN_SIZE(RamfuncsRunSize),
RUN_END(RamfuncsRunEnd),
ALIGN(4)
#else
.TI.ramfunc : LOAD = FLASH_BANK0_SEC1,
RUN = RAMLS4
LOAD_START(_RamfuncsLoadStart),
LOAD_SIZE(_RamfuncsLoadSize),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
RUN_SIZE(_RamfuncsRunSize),
RUN_END(_RamfuncsRunEnd),
ALIGN(4)
#endif

.scratchpad : > RAMLS1
.bss_cla : > RAMLS1

Cla1DataRam : > RAMLS2
cla_shared : > RAMLS1
CLADataLS1 : > RAMLS1

#if defined(__TI_EABI__)
.const_cla : LOAD = FLASH_BANK0_SEC2,
RUN = RAMLS1,
RUN_START(Cla1ConstRunStart),
LOAD_START(Cla1ConstLoadStart),
LOAD_SIZE(Cla1ConstLoadSize),
ALIGN(4)
#else
.const_cla : LOAD = FLASH_BANK0_SEC2,
RUN = RAMLS1,
RUN_START(_Cla1ConstRunStart),
LOAD_START(_Cla1ConstLoadStart),
LOAD_SIZE(_Cla1ConstLoadSize),
ALIGN(4)
#endif
}

///////////////////////////////////////////////////////////////////////////////////

over 3 years ago

0 Vamsi Gudivada over 3 years ago

TI__Guru* 87155 points

Hi SIbaPrasad,

How are the boot mode pins configured? Are they configured for flash boot or not?

Thanks and regards,
Vamsi

FAQ that may help: How to modify an application from RAM configuration to Flash configuration?: https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/878674

0 SIBAPRASAD CHAKRABARTI over 3 years ago in reply to Vamsi Gudivada

Intellectual 520 points

uC target board (F280039), GPIO24 and GPIO32 both are pulled up to +3.3V while loading code through LAUNCHXL_F280039 using TMS and TCK signals.

0 Vamsi Gudivada over 3 years ago in reply to SIBAPRASAD CHAKRABARTI

TI__Guru* 87155 points

Hi SibaPrasad,

Did you go through the FAQ: How to modify an application from RAM configuration to Flash configuration?: https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/878674

If you are able to load the same code in to the flash on LAUNCHXL_F280039 and execute fine, then you may need to check your board.

Thanks and regards,

Vamsi

0 SIBAPRASAD CHAKRABARTI over 3 years ago in reply to Vamsi Gudivada

Intellectual 520 points

Thanks, Vamsi,

See, first I loaded the code to F280039 uC on the LAUNCHXL_F280039 board. And I could RUN from FLASH.

Then, I am loading the same code to designed board.

So, I thought the configuration to FLASH is correct. Do you still suspect that the configuration is NOT correct.

0 Vamsi Gudivada over 3 years ago in reply to SIBAPRASAD CHAKRABARTI

TI__Guru* 87155 points

Hi SibaPrasad,

Maybe not. You might want to keep some GPIO toggles at a few locations in your application and see up to where the code is executed - this helps to debug.

Since the application itself is working for you on TI board, I wonder this might be a board issue.

Thanks and regards,
Vamsi

0 SIBAPRASAD CHAKRABARTI over 3 years ago in reply to Vamsi Gudivada

Intellectual 520 points

Can you please guide me on possible board issue that I need to debug.

I did NOT quite understand how toggling GPIO will help me to understand why the code is NOT loaded in FLASH,

Do you have any document on this,

0 Vamsi Gudivada over 3 years ago in reply to SIBAPRASAD CHAKRABARTI

TI__Guru* 87155 points

Hi SibaPrasad,

Since you confirmed that the code is mapped to flash in your linker cmd file and also executed it fine on launchpad, I don't think it is the issue. Did you execute the code fine in standalone mode (without debugprobe after power cycle) as well with launchpad? If yes, you don't have to debug it further for flash mapping.

Code might be executing from the flash, but might be getting a reset or is not executing as it should. Hence, if you keep GPIO toggles at few different locations in the code flow, you would know up to where the code got executed before it failed to respond.

Do you see any toggles on XRSn during the execution indicating a reset?

Once you try above, if you still need help to debug this, I can ask our board expert to take a look at this post.

Thanks and regards,

Vamsi

0 SIBAPRASAD CHAKRABARTI over 3 years ago in reply to Vamsi Gudivada

Intellectual 520 points

launchpad code is executed from FLASH, tested as below:

1. I used onboard XDS100 debugger and loaded the code and RAN the code while the debugger is active.

2. Also RAN the code with debugger de-activated, USB is connected to my laptop to supply launchpad and got the same result.

0 SIBAPRASAD CHAKRABARTI over 3 years ago in reply to SIBAPRASAD CHAKRABARTI

Intellectual 520 points

Thanks, Vamsi for your extended help. The problem is solved, GPIO32 was connected to a buffer output IC as well as pulled up to +3.3V in my board. Thats why the program did NOT jump to FLASH. I de-soldered the buffer, and it worked.

0 Vamsi Gudivada over 3 years ago in reply to SIBAPRASAD CHAKRABARTI

TI__Guru* 87155 points

Hi SibaPrasad,

Glad this board issue is resolved and the application is now booting to flash.

I am closing this post.

Thanks and regards,

Vamsi

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TMS320F280039C: PROBLEM: PROGRAM TO FLASH