SPC560B-DIS , watch dog issue in debug mode .

[Alok Nigam_2]

Posted on April 06, 2018 at 12:20

I am using SPC560B-DIS  discovery board and UDE STK 4.8  debugger for my project .

I am facing issue with watchdog during debugging  , i have set my watchdog in window mode

with time out period of 100 ms , and window as 50 ms .

I am not servicing watchdog to check whether watchdog  reset or not after 100 ms , by analyzing one pin state 

in oscilloscope .In oscilloscope i am able to see pin state change for very short time , but differences between consecutive peaks is coming accurately 100 ms . 

I have put FRZ bit as 0 so watchdog  counter will increment in debug mode .

Issue : When i debug the code using 

UDE STK 4.8 , reset is happening and continuous 

warning messages are displaying in log window with time stamps .

But when i am putting the break point in main , it is not hitting frequently but randomly

like sometimes in seconds , sometimes in minutes . 

But warning in message log is displaying very frequently. 

I don't know the cause of this issue , any help will be appreciated for solving this issue .  

[Erwan YVIN]

Posted on April 09, 2018 at 10:43

Hello Alok ,

If you have a reset issue ramdomly, which IVORx are you going ? 

Check your LR,PC ..

For your information , the Watchdog is disable on your debug configuration on your default configuration.

           Best Regards

                            Erwan

[Alok Nigam_2]

Posted on April 10, 2018 at 08:35

Hi erwan , i have removed the watchdog de-init previously . Please see the pic below

Here watchdog reset  is happening in 100 ms and i am able to see the warning message ,through

pin state i have confirmed reset time out is 100 ms , but the break point before TIMT_Start()

is not hitting after target reset every time , some times it hits the break point and that also with 

different intervals .