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Going from LM3S8971 to TM4Cxas Mico Controller

Other Parts Discussed in Thread: LM3S8971

We currently using the LM3S8971 micro controller on our e-bike controller. However, These are not being produced any more. So we need to change to a different micro controller. The Website, () Shows to use a TM4C12xas micro controller.

Our questions is, what is needed to change from the old micro controller to the new? How intensive is it, in relation to coding and programs, etc...?

Any help you can offer on this would be great!



  • Hello Justin,

    The following application note will be a useful resource in software migration

    From a device standpoint, you would need to see what are the peripherals being used on your existing application and what is the equivalent TM4C device which has the same peripherals. Since I do not have that list of your existing application peripheral, you would need to look that up w.r.t the data sheet of the equivalent package part number.

    We would be more than glad to help you in the migration.
  • Thank you for such a quick response.

    Here is all of the information that I have on the Micro Controller that we are currently using .

    Part #: LM3S8971
    IQC 50A2S0 or maybe 5DA2SD
    $9 37 P130H
    ARM G3

    Does any of this information help? If not, please let me know and I'll get the information.

    In the mean time I will read through the application note that you linked for me.

  • Hello Justin,

    The part number is OK, but which peripherals are required by your application, performance requirement in terms of MHz is also required?