[FAQ] MCU-PLUS-SDK-AM243X: How to debug sbl_qspi (for am263 and am273) or sbl_ospi (for am243) or an application which is booted via OSPI/QSPI boot ?

Follow the following steps to debug a sbl example or application booted via xSPI --

• To debug a sbl_qspi or sbl_ospi, build the custom sbl on the device with following modifications -
  • Add the function loop_forever() just after entering the main().

• Flash the custom sbl on the device via sbl_uniflash utility provided with the MCU+ SDK release - https://software-dl.ti.com/mcu-plus-sdk/esd/AM243X/08_03_00_18/exports/docs/api_guide_am243x/GETTING_STARTED_FLASH.html

• Launch the target configuration without loading any GEL files - https://software-dl.ti.com/ccs/esd/documents/users_guide_11.2.0/gel/files.html

• Connect Target to R50_0 (SBL runs only on R50_0 core).
• The program which needs to be debugged is already loaded on the device. Load the symbols like this -

• You will find the program counter at loop_forever() function. Now modify the value of loop to 0 via debugger and return to main.

Now you can debug the sbl or the application directly.

For more details on Launch the target configuration without loading any GEL files

Follow the following steps -

1. Go to view and select target configurations.

2. Add a new target configuration -

3. Select the appropriate board or device -

4. Go to Target Configuration

5. Remove the mentioned *.gel file for given core.

6. Make sure to save the configuration.

7. Test the connection and use the configuration for the debug.