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estimate the memory size before to select a mcu/dsp

Ras Sharif50
Genius 3455 points

Other Parts Discussed in Thread: TMS320F28027

Dear All,

In developing stage we select a MCU matching to the application.

For selecting a MCU we determine the requirements.

The memory is one of the important ones.

How we can estimate/determine the memory ( flash/ram ) required in the project before selecting?

Is there a method for it by simulation ?

Thanks in advance,

Ras

  • 0
    Guru 192875 points

    Hi Ras, 

    This depends on the type of application and the features it provides. So any info on this would help me guide you. 

    Regards, 

    Gautam

  • 0 in reply to Gautam Iyer
    Genius 3455 points

    Dear Gautam,

    My question is general, but I have a project now:

    The controller samples three analog inputs of temperature ( inside and outside ) and current. It switches two power electronic switches. The power electronic circuit supplied from ac and the load is a resistor element. The controller mainly regulate the temperature of the heater. In the firmware we need to calculate the trms of the current, to sample the temperatures and regulate it in closed loop and feed-forward manner.

    Please consider a general question.

    Regards,

    Ras

  • 0 in reply to Ras Sharif50
    Guru 192875 points

    The controller samples three analog inputs of temperature ( inside and outside ) and current. It switches two power electronic switches. The power electronic circuit supplied from ac and the load is a resistor element. The controller mainly regulate the temperature of the heater. In the firmware we need to calculate the trms of the current, to sample the temperatures and regulate it in closed loop and feed-forward manner.

    This can be achieved by TMS320F28027 itself. No need of any high end controllers.

    Regards,

    Gautam

  • 0 in reply to Gautam Iyer
    Genius 3455 points

    Thank you Gautam,

  • 0 in reply to Ras Sharif50
    Guru 192875 points

    No problem, Ras! Do let me know if you've more questions.

    Goodluck & Regards,

    Gautam