The Watchdog window allows you select either no watchdog timer or a watchdog timer along with the available timer lengths, which is by default 1.67 seconds.

Single click the "En 520 No WD" button. The button must be selected whenever using the EVM for general operation unless standalone mode wants to be initiated at startup, see Figure 6-16.

The GUI will automatically do read all the registers after the "En 520 No WD" button has been selected, which deselects the CMWEN bit, see figure Figure 6-17.