• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 30 subscribers
  • Views 653 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DRV8844EVM: DRV8844EVM

shanmukesh Balamurugan
Prodigy 10 points
Part Number: DRV8844EVM
Other Parts Discussed in Thread: DRV8844, CC3200,

I am using DRV8844 EVM and initially I tested it using the DRV8844 GUI,by connecting a brushed DC geared motor which ran perfectly.

Later,I tried to control IN lines and EN lines from a external CC3200 Launchpad through the test stakes to control the same Brushed DC motor. At  the first try there was communication between CC3200 and DRV8844 EVM and the motor started rotating, but then the motor did not run. I tried to go back to using the built in MSP 430 and tried to control through the DRV8844 GUI but no result. What can be done. How can I check?

  • 0
    TI__Genius 14487 points
    Hi Shanmukesh,

    It sounds like the DRV8844EVM may be damaged. Did you remove the jumpers from the MSP430 signals before connecting the CC3200?

    To debug the EVM, you may have to check important pins on the ICs to isolate the problem. To check the MSP430, remove the jumper on the board, then operate the GUI and see if the MSP430 provides the outputs you expect. Use this same idea to debug the DRV8844. Check the charge pump pins to see if the devices is operational. Send logic control signals to the inputs and see if the output signals correspond to the inputs.