TMS320F28388S: Tables In CLA Code

Ed Sanders

Part Number: TMS320F28388S
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Greetings,

When the CLA code uses a read-only table, can it be in the same LS RAM as the program which uses it? Or does it need to be on the data bus in a separate LS RAM?

Thank you,

over 1 year ago

0 Delaney Woodward over 1 year ago

TI__Mastermind 24950 points

Hi Ed,

To clarify, are you talking about a table in CPU-to-CLA MSGRAM (CLA only has read access but CPU can write)? Or are you defining a table inside a CLA task that uses hardcoded values?

Program memory can only contain valid CLA instructions from the instruction set, if what you are describing is a hardcoded table inside a task, the compiler will place it in the memory allocated for the const_cla in the linker cmd file.

Best Regards,

Delaney

0 Ed Sanders over 1 year ago in reply to Delaney Woodward

Genius 4175 points

Hi Delaney,

It is the table inside the CLA task. So the const_cla section must be placed in the CLA writeable area?

Thank you,

+1 Delaney Woodward over 1 year ago in reply to Ed Sanders

TI__Mastermind 24950 points

Hi Ed,

I see, thank you for clarifying. The const_cla needs to be allocated to an LSRAM that the CLA data memory access to. For example, in Sysconfig if the following permissions were given:

const_cla could be allocated to either LSRAM1 or LSRAM2 in the linker cmd file. Please upvote this response if it answers your question.

Best Regards,

Delaney

0 Ed Sanders over 1 year ago in reply to Delaney Woodward

Genius 4175 points

OK.

Thank you Delaney,

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TMS320F28388S: Tables In CLA Code