To unsecure a device, the debugger needs to know the value of the FCDIV register to correctly mass erase the device and program the security byte. The Information required to unsecure the device dialog box provides an FCDIV value to the Unsecure Command File script. To access this dialog box, select the menu option HCS08 Open Source BDM > Command Files and click on the Unsecure tab.
Figure 15.3 Information Required to Unsecure the Device Dialog Box
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When FCDIV is correctly set, select the OK button in this window to run the Unsecure command file script.