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Debugging DMA corruption - MPC8555

Question asked by Dijo John Manavalan on Nov 18, 2015
Latest reply on Nov 23, 2015 by LPP
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Hi,

wanted to know on how to rule out or convict :-) DMA for a particular memory corruption.

  • It's MPC8555
  • The corruption is in the vector area (starts at 0x0 in our system)
  • The vector area is protected against writes.

Can we set a watchpoint on the DAR (DMA Controller)? for the corrupted adddress?

What are the other methods to debug DMA bugs?

 

Thanks,

Dijo

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