TMS320F2800157: Branching instruction from secondary bootloader to Application

Hello,

To clarify, are you booting the device in CAN boot mode to load in a secondary bootloader (flash kernel) into RAM which will load an application program to Flash?

Have you already reviewed our DCAN Flash kernel example in C2000Ware (located at C:\ti\c2000\C2000Ware_5_02_00_00\driverlib\f280015x\examples\flash)? 

There is also an app note (https://www.ti.com/lit/an/sprad51a/sprad51a.pdf) describing CAN flash programming - while it is intended for F28003x and F28P65x devices, but may be helpful in indicating the flow at a high level).

Best Regards,

Allison

No. It is not like that.

I have to keep secondary bootloader in particular section & application code in particular section of flash memory.

Upon reset, mcu need to boot from secondary bootloader, by using this I need to flash the application code using my custom GUI.

Hi,

So is the question whether you can run from flash while programming application code to flash as well? To jump to the application code, you just need to know the address to branch to and could do so in assembly. Are you doing something similar to this other thread? https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/978557/tms320f28069-jump-to-application-from-bootloader-when-running-from-flash 

Best Regards,

Allison