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MSP430F67791: Does the Advanced DLMS features can be added into the 16-bit EVM

NIKHITHA PAGIDI
Prodigy 120 points
Part Number: MSP430F67791
Other Parts Discussed in Thread: AES-128

Tool/software:

Hi TI,

Can we add the advanced DLMS functionalities into this EVM?

does 16-bit architecture is enough to include the above functionalities or it is for the basic DLMS?

  • 0
    TI__Mastermind 46765 points

    Hi,

    There is DLMS COSEM Library which can be used on MSP430F67791. However, for the advanced DLMS function, I think it is hard to achieve on this MCU and the limitation would be the RAM size. 

    Best regards,

    Cash Hao

  • 0 in reply to Cash Hao11
    Prodigy 120 points
    Cash Hao11 said:

    I think it is hard to achieve on this MCU and the limitation would be the RAM size. 

    Best regards,

    As you mentioned for 16-bit if the RAM size is increased we can process the advance DLMS features?
    is that correct or it is mandatory to go for 32-bit?

  • 0 in reply to NIKHITHA PAGIDI
    TI__Mastermind 46765 points

    HI,

    Well, I am getting the below information related to the DLMS.

    The DLMS protocol stack typically requires 50-100 KB of Flash and 5-10 KB of RAM (depending on protocol feature trimming).

    The MSP430F67791 offers 128 KB of Flash + 8 KB of RAM, which is theoretically sufficient for basic DLMS functionality. However, scenarios requiring full security encryption (e.g., AES-128) or multi-protocol integration (e.g., TCP/IP) may necessitate further optimization of memory allocation. 

    So, I think the limitation would be the RAM size.  

    Best regards,

    Cash Hao

  • 0 in reply to Cash Hao11
    Prodigy 120 points

    Okay, Thank you for the reply.

    i have one more question.

    Here, the security encryption a software or a hardware component?
    i have a clear parameter sizes for the Advanced features can you please tell on the above

  • 0 in reply to NIKHITHA PAGIDI
    TI__Mastermind 46765 points

    Hi,

    If the security encryption is talking as the AES-128 than it is a hardware component. But it also could refer to other security encryption functions which may require from both software and hardware aspect. 

    Best regards,

    Cash Hao

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