• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 40 subscribers
  • Views 164 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

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.

TIDA-010056: MSP430FR2355

Sudhir Monpara
Prodigy 250 points
Part Number: TIDA-010056

Hello Team, 

We are getting voltages on output side. We have connected lamp load as 3 phase. But when we are are varrying potentiometer we can't see change of pwm duty cycle. We have connected lamp load as 3 phase. Ideally when we are varrying potentiometer brightness of the lamp should be decrease. But it isn't. Hall sensor signals we are generating using Arduino Due (50% Duty cycle and 120 phase difference 3 phase ) .Driver IC is used DRV8353RH. Code we are using provided by TI for TIDA-010056. While debugging of program code we find that SPEED_REF variable used in code is not changing when we are varying potentiometer. To check SPEED_REF adc pin working or not , We had written single code to read SPEED_REF as ADC and it was working properly. But in our main code it is not changing. 

Please help us to solve this problem.

Thank you in advance.

  • 0
    TI__Mastermind 27505 points

    Hi,

    I am not sure what can I help you here. I am not familiar with motor driver.  

    The application code should have been tested before it published on our website. It should work functionally, I saw in the code it is using the ADC to capture the SPEED_REF.  What do you mean it is not changing? Do you think it is a hardware issue or a software ware issue? If you believe it is a software issue, can you add a breakpoint in the ADC interrupt service routine code and check if the code runs into it?

    Best regards,

    Cash Hao