TMS320F28388D: After firmware update and reboot, CM doens't work.

Seunghun Lee

Part Number: TMS320F28388D

Tool/software:

I'm doing my subject for firmware update with 28388D CPU1 and CM.

Using Fapi_issueProgrammingCommand(), I've finished programming(writing) data in each core's flash as hex utility says and

I checked that the written data are just same with the case when I directly load and run the program on ccs.

But when I reboot the board, only CPU1 works and it doens't seem like CM core work. - Not meaning a breakdown, I think CM didn't get boot when CPU1 got turned on by rebooting.

I tested with the ti led_blinky example in c28x_cm folder.

LED1 blinks properly by CPU1, but LED2 (which CM is supposed to control) just keeps turning on.

I have no idea why CM doesn't work.

9 months ago

0 Siddharth Deshpande 9 months ago

TI__Mastermind 35845 points

Hi,

CPU1 core has to boot the CM core

Do you have any code within CPU1 to boot the CM core ? (similar to the line below)

Device_bootCM(BOOTMODE_BOOT_TO_FLASH_SECTOR0);

Best Regards

Siddharth

0 Seunghun Lee 9 months ago in reply to Siddharth Deshpande

Prodigy 20 points

Nice to meet you.

There's no such code in my firmware update function, but

there's a code you told, in led blink example's CPU1 main function and

the example project is where the hex utility txt file(the input of firmware update function) came from.

So I thought if I reboot the board, CM can get reboot by that code.

Do I have to add the code right after the firmware update function too?

0 Siddharth Deshpande 9 months ago in reply to Seunghun Lee

TI__Mastermind 35845 points

Hi,

If this code is already in the CPU1 code, then it should boot the CM core.

How are you updating the firmware? Are you using any bootloader and flash programmer utility to specify the .hex file for the firmware?

Also, are you updating it only for CPU1 or for CM as well?

Best Regards

Siddharth

0 Seunghun Lee 9 months ago in reply to Siddharth Deshpande

Prodigy 20 points

Thanks for you help.

I'm sending and receiving the data of hex txt file through ethernet packets between the board and PC, not using bootloader or programmer utility.

I want to update both CPU1 and CM, so there are two loaded projects for each core's firmware update, one loaded at CPU1 and another loaded at CM.

0 Siddharth Deshpande 9 months ago in reply to Seunghun Lee

TI__Mastermind 35845 points

Hi,

Okay, got it.

How are you running the CPU1 core after the firmware update is completed?

Best Regards

Siddharth

0 Seunghun Lee 9 months ago in reply to Siddharth Deshpande

Prodigy 20 points

I just physically reboot the board by the lever.

I checked, when I directly loaded the projects in CCS and rebooted the board in the same way, CPU1 and CM properly started working.

0 Siddharth Deshpande 9 months ago in reply to Seunghun Lee

TI__Mastermind 35845 points

Hi,

Can you try loading the symbols after the firmware update is done?

Connect the debugger in CCS, instead of load program , there is an option to load symbols . You can use that option and debug the code.

Best Regards

Siddharth

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TMS320F28388D: After firmware update and reboot, CM doens't work.