I'm need my microcontroller to wakeup every 20-30 minutes. During the idle times it will be in sleep mode. I've successfully got the watchdog timer to start the circuit using the watchdog timer interrupt.
The datasheet for my microcontroller is here: http://ww1.microchip.com/downloads/en/DeviceDoc/41391D.pdf
The WDTPS only allows for 256 second delay. See page 99. How can I make a longer delay?
I thought about putting 5 of these sleep commands in a row in the code, but the extra power to restart I think would be too much.
The datasheet for my microcontroller is here: http://ww1.microchip.com/downloads/en/DeviceDoc/41391D.pdf
The WDTPS only allows for 256 second delay. See page 99. How can I make a longer delay?
I thought about putting 5 of these sleep commands in a row in the code, but the extra power to restart I think would be too much.