Enable Watchdog in PSoC4 BLE

[PascalS]

Hi,

   

I try to enable a watchdog timer to reset my application in an error case after 1s (I don't need any WDOG interrupt / just the reset). How can I realize this requirement?

   

1. How to enable the WDOG timer

   

2. How to setup the refresh time?

       

I attached a simple example.

   

Thanks in advance!

       

Pascal

[Anonymous · Accepted solution]

You can refer to WDT Example Projects (File -> Code Example -> PSoC 4200 BLE -> Watchdog_PSoC4_Example and WDT_P4_Example) to see how WDT can be configured for Reset. You need to clear the interrupt before the timeout occurs to prevent WDT from resetting the device.

[PascalS]

Before I wrote this comment, I tried to figure out where to configure the reset time and how to use just the WDT-reset without any interrupt. But both of these examples use a WDT_isr (why?) and it's not clear where I can configure my reset time. I'm searching for:

   

1. WDT enable function

   

2. WDT refresh function

   

3. WDT configure function for reset time

   

Do I really need to configure an isr to use the WDT??

   

Thanks!

   

Pascal

[Anonymous]

Hi! Take a look at the cy_lfclk datasheet. You can open this easily within PSoC Creator: In the workspace explorer, click on the tab "Datasheets" and you'll find it under "System Reference Guides" 🙂

[PascalS]

Thanks, I solved the problem right now!