CCS/TMS570LS0432: CAN Bootloader Development- flag at flash memory

Sam S1

Part Number: TMS570LS0432

Tool/software: Code Composer Studio

I want to develop CCP (can calibration protocol) based Bootloader for TMS570LS0432.

I want to have a reference code for the development purpose.

And how can I check the flag at 0x0007FF0. If the flag is a valid number (0x5A5A5A5A), the bootloader will jump to the application code.

Could you please share the demo code to how to write a 1 byte number as a flag in flash memory so that I can read the value at that address and jump to application code from boot code and vice versa.

over 6 years ago

0 Miro over 6 years ago

TI__Mastermind 21425 points

Hello,
I have addressed your question but the answer may delay because 27th of May is Holiday in USA.

Best regards,
MIro

0 Sam S1 over 6 years ago in reply to Miro

Prodigy 120 points

Hi, Miro

could you please address the mentioned query?

0 Miro over 6 years ago in reply to Sam S1

TI__Mastermind 21425 points

Hello,
Sorry for the delay! I'll send this query again.

Best regards,
Miro

0 Sam S1 over 6 years ago in reply to Miro

Prodigy 120 points

hi, miro

Any updates?

0 QJ Wang over 6 years ago in reply to Sam S1

TI__Guru**** 198766 points

Hello,

Please refer to the TI CAN bootloader example code. The bootloader programs the application code to flash, and it also programs the status flag to the flash.

The example code programs the flags (0x5A5A5A5A, and Application start address, ..) to 0x10000.

if (g_ulTransferSize == 0)

{

if( ucUpdateStatus == 1)

{

oReturnCheck = Fapi_UpdateStatusProgram( updateStatusBank, g_ulUpdateStatusAddr, (uint32_t)&g_pulUpdateSuccess[0], g_ulUpdateBufferSize);

UART_putString(UART, "\r Application was loaded successful! ");

}

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CCS/TMS570LS0432: CAN Bootloader Development- flag at flash memory