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More Flash needed on DRV8821EVM Dual Stepper Driver

LDT
Intellectual 680 points
Other Parts Discussed in Thread: DRV8821EVM, MSP430F1612

I've been working a project using DRV8821EVM (Dual Stepper Driver) as a test bed for some time now. Very successful to this point.

BUT, I now need more program (memory) flash than the MSP430F1612 provides. I am OK with changing the part out on the EVM but can not identify a pin for pin replacement with double or half-again the flash space.

One MSP found has additional 5K but changing part for that little increase is not justified.

(A new EVM with larger flash and Dual Stepper Drive would be good but porting firmware may be an issue.)

Is there another pin compatible MSP with significantly more flash?

Thanks,
LDT

  • 0
    TI__Guru** 114905 points

    Hi LDT,

    Please take a look at the MSP430F241x and MSP430F261x devices. They have more memory and appear to be pin to pin compatible.

    May I also suggest that you also post your question in the microcontrollers msp430 forum?

    e2e.ti.com/support/microcontrollers/msp430/default.aspx

    If a device exists, they should be able to point you to it. They may also be able to provide helpful hints for code size reduction.

  • 0
    TI__Mastermind 20985 points

    LDT, check out this guide.  Page 11 shows FRAM parts with more memory, and Page 15 shows flash-based parts with 92-120kB.

    As Rick mentioned, the MSP430 E2E forum has the experts on this.

    Best regards,
    RE