PROCESSOR-SDK-AM64X: AM64x cant run SMP example.

Mustafa Filiz

Prodigy 110 points

Part Number: PROCESSOR-SDK-AM64X

Hello,

i am having some trouble running a53 smp example.

i am using mcu+sdk 09.00.00.

as specified in mcu+sdk,

i create sync group including a53_0 and a53_1.

when i load the program and checkout the program stack.

i see this. a53_0 is at the main, ready to start but core_1 is waiting for core_0 to init MMU which it already did.

github.com/.../boot_armv8.c

Are there any extra step for A53 programming ?

What am i missing ?

Thank you in advance.

over 2 years ago

0 Swargam Anil over 2 years ago

TI__Mastermind 48686 points

Hello Mustafa,

I am looking at your queries .you may get reply with in one or two days .

Regards,

S.Anil.

0 Mustafa Filiz over 2 years ago in reply to Swargam Anil

Prodigy 110 points

the example working when i boot from ospi, flash. i think its because of debugger.

software-dl.ti.com/.../ccs_smp-debug.html

0 Swargam Anil over 2 years ago in reply to Mustafa Filiz

TI__Mastermind 48686 points

Hello Mustafa ,

Thanks for the update. Your understanding is correct.

And I am closing this thread. Open new threads if you have any.

Regards,

S.Anil.

0 Mustafa Filiz over 2 years ago in reply to Swargam Anil

Prodigy 110 points

Still cant run with debugger.

according to SMP_Debug_with_Code_Composer_Studio, if i dont use any breakpoints example should work.

but i couldnt make it work.

as shared_memory specified, tried to add map for debugging smp.

at project linker file memory region is :

MEMORY
{
DDR : ORIGIN = 0x80000000, LENGTH = 0x2000000

/* shared memory segments */
/* On A53,
* - make sure there is a MMU entry which maps below regions as non-cache
*/
USER_SHM_MEM : ORIGIN = 0x701D0000, LENGTH = 0x80
LOG_SHM_MEM : ORIGIN = 0x701D0000 + 0x80, LENGTH = 0x00004000 - 0x80
RTOS_NORTOS_IPC_SHM_MEM : ORIGIN = 0x701D4000, LENGTH = 0x0000C000
}

i added the memory map from debug window. Like below, i created custom gel file.

GEL_MapAddStr(0x701D0000, 0, 0x80, "RAM|SH1C", 0);

GEL_MapAddStr(0x701D0000 + 0x80 0, 0x00004000 - 0x80, "RAM|SH2C", 0);

GEL_MapAddStr(0x701D4000, 0, 0x0000C000, "RAM|SH3C", 0);

GEL_MapOn();

i get error "Loader: One or more sections of your program falls into a memory region that is not writable"

i am not able to debug smp project.