MSP430FR5992: Watch Dog Timer

Abhisek Choudhury

Prodigy 70 points

Part Number: MSP430FR5992

Hi,

I want to reset my microcontroller if my firmware code is getting stuck. Can you please help me in implementing this.

Currently I am stropping the WDT using : WDTCTL = WDTPW | WDTHOLD;

Regards

Abhisek

11 months ago

0 Abhisek Choudhury 11 months ago

Prodigy 70 points

Hi,

Will the statement "WDTCTL = WDT_ADLY_1000;" work. Will it keep a check on controller every 1000ms and if something wrong occurs then it will only reset the microcontroller?

Regards

Abhisek

0 Johnson He 11 months ago in reply to Abhisek Choudhury

TI__Mastermind 28426 points

Hi Abhisek,

This examlpe maybe can help you:

https://dev.ti.com/tirex/explore/node?node=A__AJqoeGK4dZO20ldR2Ij4jQ__msp430ware__IOGqZri__LATEST

WDT will reset MCU every 250ms if you don't feed dog in this example.

Thanks!

Best Regards

Johnson

0 Abhisek Choudhury 11 months ago in reply to Johnson He

Prodigy 70 points

Hi ,

I don't want to reset my microcontroller every 250ms. If something unexpected happens in the code or the code is stuck, then only I want to reset microcontroller. So how to keep only a check on the code and not reset the controller every 250ms. Can you please provide code for that?

Regards

Abhisek

0 Johnson He 10 months ago in reply to Abhisek Choudhury

TI__Mastermind 28426 points

Hi Abhisek,

You can clear WDT within 250ms to avoid WDT reset device:

If your code in stuck, will can't clear WDT, then reset will occur via WDT, this method should you need.

Thanks!

Best Regards

Johnson

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MSP430FR5992: Watch Dog Timer