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mcf54416 bdm issues

Question asked by Angelo Dureghello on Jun 3, 2016
Latest reply on Jul 31, 2016 by Angelo Dureghello

Hi all,

 

i am testing a just soldered prototype board, with mcf54416. BDM seems wired correctly, but i can't connect to the target,

this using universal multilink and code warrior.

 

I re-checked BDM 26 pin connections, they seems correct (attached related diagram). I don't see any apparent issue in the diagram. Main voltages are there, clock is also there looking by scope, and cpu seems to try the SBF looking on dspi wires.

 

I am now wondering, what could be the most probable issue ?

- bad bga soldering (has been soldered in IR station)

- some other circuit error can block BDM ?

- wrong bdm tracks length ..

- ...

 

Every help is appreciated.

thanks

angelo

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