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Difference in ROM Sum value in CCS V4 as compared to CCS V5

vinay kumar6
Prodigy 100 points
Other Parts Discussed in Thread: TMS320F28030

Hello, 

We are using TMS320F28030 Microcontroller for an Automotive Motor control application which has been to the production phase. We have implemented a function which calculates the Sum value of data stored in Flash from Address 0x3f4000 to 0x3f4100, and execute after certain interval amount of time to ensure the proper functioning of the Microcontroller Flash module.

Recently we observed that the sum value is different when we using CCS V4.2.3 when compared to CCS V5 considering the fact that the same code and debugger (TI XDS100) is used.  

Could you please enlighten us on this and share the supporting document for the same. 

Prompt reply will be highly appreciated. 

Thanks & Regards, 

Vinay Kumar

  • 0
    Guru 192875 points

    Recently we observed that the sum value is different when we using CCS V4.2.3 when compared to CCS V5 considering the fact that the same code and debugger (TI XDS100) is used. 

    Are these the compared values from the generated .map files?

    Regards,

    Gautam

  • 0 in reply to Gautam Iyer
    Prodigy 100 points

    Hello Gautam,

    We are actually accessing the Flash from Address 0x3f4000 to 0x3f4100 and adding the data stored in it in the code written in C language. 

    Please answer the following questions: 

    1. Will it make any difference if we use CCS V4.2.3 when compared to CCS V5 ?

    2. Will the operating system will make any difference, i.e if we use win 7 or win XP. 

     

    Thnaks, 

    Vinay Kumar

     

  • 0 in reply to vinay kumar6
    Guru 192875 points

    1. Will it make any difference if we use CCS V4.2.3 when compared to CCS V5 ?

    Difference yes, as compiler would be different. If you try using the same compiler version you use in CCS v4 in CCS v5 then I feel you won't face the above issue.

    2. Will the operating system will make any difference, i.e if we use win 7 or win XP.

    Nah... doesn't matter which OS you use. Its the compiler version that matters.

    Regards,

    Gautam