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TMS320F28376S: CLA - DMA accessibility

Eyal Saban1
Intellectual 845 points
Part Number: TMS320F28376S

Dear Sir ,

We have  prototype board that we recently got and we are doing bring up  testing  , the board include  TMSF28376SZ and plan to use 

the CLA to do some calculation in order to offload the main core .

for that purpose we planned to use the DMA to transfer data between the CLA / CPU and CLA/ADC 

for what i have seen

a. DMA and CLA can't access the same memory region  (DMA is limited to GSX Ram block  and CLA is restricted to LSX RAM Block)  ? is it correct ? are there any workaround to make it work 

b.what is best way to transfer data between CLA and C28 ( beside shared memory between CLA/C28) ?

  • 0
    TI__Guru** 109165 points

    Hi,

    a. DMA and CLA can't access the same memory region  (DMA is limited to GSX Ram block  and CLA is restricted to LSX RAM Block)  ? is it correct ? are there any workaround to make it work 

    Yes, that is correct. No workaround.

    b.what is best way to transfer data between CLA and C28 ( beside shared memory between CLA/C28) ?

    Apart from LSx RAM there is  CLA <-> C28 message RAM which can be used for sharing information between them.

    Regards,

    Vivek Singh