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MSPM0G1107: If the MCU need to support 2 APPs, how to realize the jump between the two APPs? How to set up the compiler and APP code?

Andrew Su
Intellectual 1475 points
Part Number: MSPM0G1107 
dears,

I have a customer who is using MSPM0G1107 for wireless microphone. They plan to run APP1 in the first 16k space of the flash and APP2 in the back space. The customer has two questions:

1. How to jump between two APPs while they are running?

2. Since APP2 does not start running FROM flash address 0, what modifications and settings need to be made to the compiler keil5 and APP2 codes? Can you provide these development materials or sample code?

Thanks a lot!
  • 0
    TI__Genius 16995 points

    Hi Andrew,

    Andrew Su said:
    1. How to jump between two APPs while they are running?

    User can use PC pointer to call specific APPs, such as:(*(void(*)(void))(0x1000))(); //0x1000 is the address of another APP.

    However, if user want to jump between two APPs, they should be careful with the variable initialization, and interrupt vector table if not the same.

    Andrew Su said:
    2. Since APP2 does not start running FROM flash address 0, what modifications and settings need to be made to the compiler keil5 and APP2 codes? Can you provide these development materials or sample code?

    I am afraid that there isn't development materials or the sample code currently.

    Maybe I can offer a ccs project code example later and customer can take it as the reference, it might take some times.

    B.R.

    Sal

  • 0 in reply to Sal Ye
    TI__Intellectual 1475 points

    dear Sal,

    thanks for the kindly advice. I will feedback to the customer.

    Since APP2 does not start running FROM flash address 0, what modifications and settings need to be made to the compiler keil5 and APP2 codes? as it might take some times to develop a ccs project code example, would you please help to advice how the modifications and settings may be conducted by the cusotmer?

    thanks a lot!

  • 0 in reply to Andrew Su
    TI__Genius 16995 points

    Hi Andrew,

    Due to I am not make a code example currently, so I am not sure all the steps need considered.

    At lease user should modified the .sct file for different APP flash assignment; modified the VTOR register for the different vector table; maybe there are some other step I missed.

    B.R.

    Sal