Hi Tom,
The IDs I use in the C:\Program Files (x86)\pgo\USBDM 4.12.1.120\DeviceData\arm_devices.xml file is usually based upon the description in the if I don't have a sample.
I would expect the chip to program as a MK24FN1M0M12 - Perhaps I have the ID wrong.
Try opening the above file and adding another SDID Line with the number of your chip e.g.
| | <sdid value="0x680E0078" mask="0xFFF00F80"/> |
| |
Let me know if this works.
bye