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DRV8243H-Q1EVM: GUI issue : Not able to get 20KHz PWM frequency

Prakyath L V
Prodigy 30 points
Part Number: DRV8243H-Q1EVM
Other Parts Discussed in Thread: MSP430G2553

Tool/software:

I am using DRV8243H-Q1 EVM. I am selecting 20KHz frequency but I am getting only 2.5KHz PWM output. I am getting proper frequency output at 10KHz, 5KHz and 2.5KHz. Only with 20KHz I am facing issue and my operating frequency is also 20KHz. Kindly Provind the GUI software which provides 20KHz. Firmware version is 1.1

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  • 0
    TI__Mastermind 26510 points

    Hi Prakyath,

    This is a known issue which will be corrected in the next update. In the mean time I will provide a version of the FW which should have this issue corrected.

    https://e2e.ti.com/cfs-file/__key/communityserver-discussions-components-files/38/DRV824x_5F00_DRV814xQ1EVM.out

    To load this FW you will have to use Uniflash with the EVM connected with USB and search MSP430G2553 and hit start.

    Then you will have to click brows and select the provided .out file and hit flash image.

    This should load the new FW and you would now see 20kHz output when that setting is selected in the DRV824x_DRV814x-Q1EVM GUI.

    Regards,

    Joshua