TMS570LS3137: Bootloader

Marco Mecha

Part Number: TMS570LS3137
Other Parts Discussed in Thread: UNIFLASH, TMS570LC4357

Tool/software:

Hello Jagadish,
I have a project that, depending on a flag in a external memory:

Uploads a binary file to the Flash memory, via SPI, then clears the flag and resets
Makes the jump to the aplication

uint32_t transferAddress; //  Address that is being written to.

void main(void){
    uint16_t flashFlag;

	sciInit();
    spiInit();
	sciSend(scilinREG, 34, "********************************\n\r");
    sciSend(scilinREG, 34, "*    OBC BootLoader program    *\n\r");
    sciSend(scilinREG, 34, "********************************\n\r");

    uExtMem(FRAM1);
    flashFlag = rExtMem(FLASH_FLAG_B, FRAM1, true);
    sExtMem(FRAM1);

    if(flashFlag == FLASH_REQUIRED){
        sciSend(scilinREG, 23, "\n\rProgram Flash begin\n\r");
        UpdaterSPI(SPI_PORT);
    }

    sciSend(scilinREG, 24, "\n\rJump to application...");
    sciSend(scilinREG,  2, "\n\r");

    transferAddress = (uint32_t)APP_START_ADDRESS; //#define APP_START_ADDRESS       0x001C0020
    ((void (*)(void))transferAddress)();
}

The binary file is stored in the correct Flash location (APP_START_ADDRESS), and it is the same as the one created by CCS.

This image works as expected when flashing with UniFlash.

I have provided you the full code in a private message.

Regards, Marco Mecha

3 months ago

0 jagadish gundavarapu 3 months ago

TI__Guru 57780 points

Hi Marco Mecha,

Marco Mecha said:
This image works as expected when flashing with UniFlash.

But you didn't explain me what the issue is you are facing while downloading from SPI?

Please give me details of your issue.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 3 months ago in reply to jagadish gundavarapu

Prodigy 90 points

Sorry, i don't belive the issue is in the flashing instance as the binary looks good.

I think the problem is in the jump or in some configuration.

Regards, Marco

0 jagadish gundavarapu 3 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco Mecha,

I created one similar example to yours on my TMS570LC4357 with UART bootloader and verified.

I don't see any issues in my projects execution.

Here also i am storing the application at sector-2 of the Bank-1

And here also i am storing the application status at the starting of the sector-0 of the Bank-1

And i send my application project to the bootloader through UART and verified the execution and the project runs successfully.

So, my suggestion would be that i am attaching my bootloader and applications for your reference.

So please make sure that you are also have the similar cmd files and similar configurations for both bootloader and application:

2402.UART_Bootloader_LC4357_New.zip

3554.LED_Blinky_Project_at0x20020_Launchpad_LC4357.zip

--
Thanks & regards,
Jagadish.

0 Marco Mecha 3 months ago in reply to jagadish gundavarapu

Prodigy 90 points

I tried with your configurations of APP_START_ADDRESS
but the jump its not working, (im not using the APP STATUS ADDRESS), i have provided you the full code in private message.
When i run the code using the debugger i can se that the jump is made with an offset.

0 jagadish gundavarapu 3 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco Mecha,

Marco Mecha said:
but the jump its not working, (im not using the APP STATUS ADDRESS), i have provided you the full code in private message.
When i run the code using the debugger i can se that the jump is made with an offset.

Is it possible for you to setup one live debugging session for better understanding of the issue. Because i tried with your configuration and i could see jump to application working properly at my end, so live debugging will be helpful to understand more details.

I will be available from 10AM to 8PM IST(Indian Standard Time), can you setup one live debugging session based on your availability?

--
Thanks & regards,
Jagadish.

0 Marco Mecha 3 months ago in reply to jagadish gundavarapu

Prodigy 90 points

Is Friday 6 at 10am ARG - Buenos Aires (6:30pm IST) good for you?

0 jagadish gundavarapu 3 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco,

It is good for me.

I am sending my mail in private chat, please send the details to it.

--
Thanks & regards,
Jagadish.

0 jagadish gundavarapu 3 months ago in reply to jagadish gundavarapu

TI__Guru 57780 points

Hi Marco,

I understood the root casue for the issue now:

Please refer my comment in the below thread:

(+) TMS570LC4357: tms570 with bootloader exception handler question - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

Actually, here also we are doing the same mistake.

You are keeping the vector table at starting of the flash and we are not calling "_c_int00" function using vectors and instead of that we are calling with the address "0x0240020" right, this is not the starting address of the "_c_int00" function and here also "muxInit" function will get called.

So same thing happend as i mentioned in above thread:

i mean if you try to call the "0x20040" address directly without depending on the exception vector table then 'muxInit" will get called right, i mean this function should not be the starting point because this function will not call the main function of the application, so if we call this function directly our code will not run properly.

That is the reason you are unable to see the LED blink.

Solution:

So do the following modifications, try to keep the vector table at 0x00020020 address and after that store your actual flash0 code at 0x00020040, like as below:

And now in application you should call the vector table start address like as below:

If we do this then, "_c_int00" function will get called from reset entry vector and from there main function will get called, so our application will get execute without any issues.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 3 months ago in reply to jagadish gundavarapu

Prodigy 90 points

Hello, Jagadish, i folowed your steps but when generating the binary image for blinky using this

the file generated is realy large.
so when i start the update, im getting, "file to large"

FLASH_FIRST_SECTOR_SIZE = BLInternalFlashFirstSectorSizeGet();
transferAddress = APP_START_ADDRESS;

if((ulSize*nrPages) > FLASH_FIRST_SECTOR_SIZE) {
sciSend(scilinREG, 22, "\n\rProgram Flash failed");
sciSend(scilinREG, 18, "\n\rFile too large\n\r");
return;
}

I have sent you the full updated codes

0 jagadish gundavarapu 3 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco,

It is due to you are trying to keep the application VECTORS at starting location of flash instead of 0x00020020, i modified and did the clean build and now the binary file size was reduced to 26KB from 154KB.

I am sharing the projects with you again from private chat, can you please test and update the status.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 3 months ago in reply to jagadish gundavarapu

Prodigy 90 points

This worked fine and the binary file is correctly uploaded, however i don't know if you changed something in the project,
because now the blinky is not working at all i tried with CCS and UniFlash.

Regards, Marco

+1 jagadish gundavarapu 3 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco,

Marco Mecha said:
This worked fine and the binary file is correctly uploaded, however i don't know if you changed something in the project,
because now the blinky is not working at all i tried with CCS and UniFlash.

As i changed the vectors of the application from 0x0, now blinky project without bootloader will not work.

However, i made some more changes to the application code; can you please test the bootloader and application together now and update the result.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 3 months ago in reply to jagadish gundavarapu

Prodigy 90 points

I had to change this line

And now its working fine.

For further progress i need to kwon wich configurations sould i change to a project to make it compatible with this flashing method.

Regards, and thank you.

Marco Mecha

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco Mecha,

Marco Mecha said:
And now its working fine.

Good to hear that!

Marco Mecha said:
For further progress i need to kwon wich configurations sould i change to a project to make it compatible with this flashing method.

As our application start address (APP_START_ADDRESS) is 0x00020020 right? and this memory address is in BANK0 and not in BANK1, so that is the reason it is working after you passing the 0 value as BANK.

I think no other modifications were required.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 2 months ago in reply to jagadish gundavarapu

Prodigy 90 points

I meant modifications to the file from witch the binary immage is generated (In this case Blinky)

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco,

In blinky file also you don't need to do any changes because the code is already generating from the address 0x00020020, and which is bank-0 only not bank_1

So, no further modifications required.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 2 months ago in reply to jagadish gundavarapu

Prodigy 90 points

My cuestion is,
I have another project, called V1, i would like to generate a binary image for this project so i can use this bootloader to flash it.
What modificatios should i make to this project so im able to do this.
I have modified the sys_link.cmd like this:

VECTORS (X)  : origin=0x00020020 length=0x00000020
FLASH0  (RX) : origin=0x00020040 length=(0x001FFFE0 - 0x00020020)
FLASH1  (RX) : origin=0x00200000 length=0x00200000
STACKS  (RW) : origin=0x08000000 length=0x00001500
RAM     (RW) : origin=0x08001500 length=0x0003EB00

But it´s not working yet
but what else should i change?

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco Mecha,

I don't think you need to do any other changes except the linker cmd file.

Marco Mecha said:
I have modified the sys_link.cmd like this:

Your linker cmd file looks fine to me.

May i know what exactly this new project will do? How are you saying (on what basis) it is not working?

Is it possible to share the map files of both bootloader and application?

Thanks & Regards,
Jagadish.

0 Marco Mecha 2 months ago in reply to jagadish gundavarapu

Prodigy 90 points

Hello Jagadish,

My plan is to have 2 programs

Main program: is in charge of doing many things (one of them is recieve the binary file for a upload and store it in a external memory)
Bootloader : reads the external memory and loads to flash

For testing, i used the main program to recieve the Blinky project, and then flash the bootloader using CSS, to load the Blinky, form the ext. mem. to the flash.
After the corrections you provided, this works fine.

But now, i need to flash the main program and not the Blinky, this is not working (i only changed the sys_link.cmd in main). What are the necesary changes in main program so it becomes compatible with my bootloader?.

I have send you a zip file with the 3 projects.

Regards, Marco Mecha.

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco Mecha,

Are you trying to use the V1.0.1 application instead of blinky?

If that is true, then why again you are trying to program this application at starting location of the flash? If you do that it might overwrite the bootloader right?

Modify this according to the blinky application. First directly test this project, if it is working then modify its linker cmd file in according to the tested blinky application.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 2 months ago in reply to jagadish gundavarapu

Prodigy 90 points

Yes, im trying to use the V1.0.1 application instead of blinky,

I used the commented code, below the one you selected,

VECTORS (X)  : origin=0x00020020 length=0x00000020
FLASH0  (RX) : origin=0x00020040 length=(0x001FFFE0 - 0x00020020)
FLASH1  (RX) : origin=0x00200000 length=0x00200000
STACKS  (RW) : origin=0x08000000 length=0x00001500
RAM     (RW) : origin=0x08001500 length=0x0003EB00

this is the same as in Blinky, but its not working

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco Mecha,

Marco Mecha said:
this is the same as in Blinky, but its not working

Is it working standalone (i mean without bootloader)?

--
Thanks & regards,
Jagadish.

0 Marco Mecha 2 months ago in reply to jagadish gundavarapu

Prodigy 90 points

If i have the linker cmd file like this, its not working at all (flashing with my bootloader or CCS),

VECTORS (X)  : origin=0x00020020 length=0x00000020
FLASH0  (RX) : origin=0x00020040 length=(0x001FFFE0 - 0x00020020)
FLASH1  (RX) : origin=0x00200000 length=0x00200000
STACKS  (RW) : origin=0x08000000 length=0x00001500
RAM     (RW) : origin=0x08001500 length=0x0003EB00

I i have it like this, its working if i flash with CCS but no with my bootloader

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco Mecha ,

Is it possible to setup one more live debugging session for better understanding of the issue?

--
Thanks & regards,
Jagadish.

0 Marco Mecha 2 months ago in reply to jagadish gundavarapu

Prodigy 90 points

Is Friday 4 at 10am ARG - Buenos Aires (6:30pm IST) good for you?

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco,

Can we plan this on Monday? Is that okay for you?

I can okay with any time on Monday.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 2 months ago in reply to jagadish gundavarapu

Prodigy 90 points

Monday is good, at 10am ARG - Buenos Aires (6:30pm IST) good for you?

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

It is good for me, please share the meeting invite.

0 Marco Mecha 2 months ago in reply to jagadish gundavarapu

Prodigy 90 points

I have sent you the link in a private message

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

Sorry, i am unable to connect to office vpn at this time.

I will let you know once i am able to connect to it.

I sent this message using my mobile. Looks like laptop have some issue.

0 Marco Mecha 2 months ago in reply to jagadish gundavarapu

Prodigy 90 points

Are you avalable Wednesday this same hour?

0 jagadish gundavarapu 2 months ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco Mecha,

Sure, i will be available, please send meeting link at least before an hour.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 1 month ago in reply to jagadish gundavarapu

Prodigy 90 points

Hello Jagadish, did you have any time to review this?

0 jagadish gundavarapu 1 month ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco,

I tried for some time but unable to solve the issue,

i will try to debug the issue again by today or tomorrow.

--
Thanks & regards,
Jagadish.

0 Marco Mecha 1 month ago in reply to jagadish gundavarapu

Prodigy 90 points

Hello Jagadish, did you have any time to review this?

0 jagadish gundavarapu 1 month ago in reply to Marco Mecha

TI__Guru 57780 points

Hi Marco,

I didn't get time again to work on this issue.

As i said i worked for some time after our live debugging session but couldn't find any root cause for the issue.

I will try to work on this again by tomorrow, mean time did you any findings that might be useful?

--
Thanks & regards,
Jagadish.

0 Marco Mecha 1 month ago in reply to jagadish gundavarapu

Prodigy 90 points

I haven't found anything usefull.
If you have some test in mind i can try it on my end. If you have any documentation that i can read, it can be usefull as well.
Regards, Marco