Sleep timer for DeepSleep mode, PSOC 4200

[DaHu_285096]

I have a project on PSOC 4200 that goes to deepsleep and wakes up on a pin interrupt at the moment.

However, I now want to have a LED blink periodically and not depend on waiting for hardware interrupt.

I looked at some examples online and am a bit confused how to set up the watchdog time in the 4200 project. Do I need to use the Global Interrupt source? or is the watchdog just set up in code?

Where do I set the period (I will need around 600ms to 1 second period)

Thanks

[RyanZhao · Accepted solution]

Hi David,

Global Interrupt source is required.

Here is an example about how to use PSoC4200 WDT to wake up the chip from deep sleep. FYI.

Thanks,

Ryan

[DaHu_285096]

Thanks, that is very helpful