Debug dual core TI-RTOS project with F28377D

Han,

please refer to the dual core blinky example in controlSuite for your device (C:\ti\controlSUITE\device_support\F2837xD\v180\F2837xD_examples_Dual\blinky_dc). Once you import the project into CCS and look at the build configurations you will have a FLASH_DEBUG option which should let you do what you want.

when you select FLASH_DEBUG on CPU1 project, you will have to select FLASH build on CPU2 project (or you can do RAM builds on both the projects). Once you get both the projects programmed, reset and run CPU2, so that it is running CPU2 boot ROM and restart to the CPU1 application main() on CPU1 and step through the code. Before resetting CPU2 and after programming CPU2 application, you can set a break point on main() in CPU2 as well.

For #2> please file a separate forum question into the compilers forum. Or I can move this question over there once we are done with #1.

Hope this helps.

Best Regards

Santosh Athuru

forgot to mention that when you reset and run CPU2, to run CPU2 boot ROM it will hit an ESTOP0 becuase you ran boot ROM with emulator connected. Please hit run one more time, so CPU2 boot ROM will be running now waiting for boot mode IPC commands from CPU1 application.

You can put break points at CPU2 applicaiton when you hit the ESTOP0 in boot ROM as well.

Best Regards
Santosh Ahturu

Santosh,

Thanks a lot for your fast response and detailed suggestion. I followed your suggestion and tried to run the example in controlsuite. Then I used the similar way on my BIOS project and it did made it to work on debugging them. Here is the way I do it: with the "Enable boot form flash" and "Enable boot of the CPU 2" enabled on CPU 1 and "Enable boot form flash" enabled on CPU 2, I can start the dual CPU debug in the following order:

Reset CPU 1
Restart CPU 1 and get into main()
Reset CPU 2
Restart CPU 2 and get into main()
Run CPU 2
Run CPU 1

This way, I can start debug the dual core project. I am not sure if my way of doing it is correct since this is a little bit different from what you suggested since I can only make it to work when I use the restart after the reset of each core. 

In addition, I figured a difference between the debug and run form power cycle: The two CPU starts at the same time (at least as I can tell since the two LEDs are blinking synchronously), however, in the restart case, it seems that the CPU 2 lags CPU 1 a little bit when booting.

I also have the following questions:

Since the IPC message form CPU 1 to let CPU 2 boot is in the bootloader, it seems some mechanism is built into the BIOS_Start function that let CPU 2 to wait for CPU 1 to let it run since it also freeze even I start run from main (where I believe it already passed the bootloader phase).

So when did BIOS really fire the IPC signal to boot CPU 2 in its boot up sequence, and when will CPU 2 really freeze and wait for the signal in its boot up sequence?

Also is there a way to use the true mechanism in the boot loader to sync the two cores (which I assume your method should do, however, I could not make it to work)?

In the attachment is a achieve of my test projects for your information in case I might made some mistakes in the configuration. Thank you very much again.

Han