TMS320F28377D: CLA in CPU2 LS5RAM issue

Simen Biao

Expert 1875 points

Part Number: TMS320F28377D

Hi,

I use CLA in CPU2 LSxRAM.

CLA program is in LS2+LS3+LS4+LS5 RAM .

CLA DATA is in LS0+LS1 RAM.

I make sure LSxMSEL.bit.LS0/LS1/LS2/LS3/LS4/LS5 =1,

also LSxCLAPGM.bit.LS2/LS3/LS4/LS5 =1,

But when CLA program run into LS5RAM (after 0xA800), there are many wrong behaviors with CLA.

example as below picture:

The MSTF return address is 0x975A when CLA excute into 0xA864 code.

But CLA do not return to 0x975A and the program continues to execute 0xA86C.

Any suggestion with this situation?

thanks,

best regards,

Simen

over 7 years ago

0 Sal Pezzino over 7 years ago

TI__Mastermind 32995 points

Are all the RAM LS blocks on the same page in the linker command file?

I believe all CLA Program memory should at least be on the same page.

Also, make sure the CLA program memory is being copied to run from the RAMLS if you are not loading it directly into RAM LS.

sal

0 Simen Biao over 7 years ago in reply to Sal Pezzino

Expert 1875 points

Hi sal,

Thanks for your suggestion.

best regards,
Simen

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28377D: CLA in CPU2 LS5RAM issue