I'm helping someone with CodeWarrior 7.1 running against an M5213EVB board.
She can use the pemicro tool progcfz to program her board, but when we try to do anything with CodeWarrior, it says (sorry, this is all by phone) roughly "coldfire pe protocol adapter: no usb connection found".
Basically, she can't debug with CodeWarrior or use the Tools -> Flash Programmer.
I had a similar problem with HCS12 - and I think the problem is in USB drivers - try to use different physical USB connectors for pemicro and CW - go to control panel and try first to restore/repair CW having the BDM in one USB connector and then use pemicro in another one.
Same problem arise when you change the BDM with another one - PEMicro use a BDM internal identifer inside driver , so you must reinstall the driver (a great bad idea...).
Thank you, I have passed that on and we'll try repairing the installation and then plugging the EVB into a brand new USB port. If that doesn't work, we'll repeat the repair with the EVB plugged into yet another brand new USB port.