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F28M35H52C1 Concerto boards failing and cannot be reprogrammed

Pat Harris
Genius 3890 points
Other Parts Discussed in Thread: UNIFLASH

I have a number of Concerto chips that have failed with the reset pin pulled low. I have tried to reprogram them using both Uniflash and CCS to no avail. Is there a way to force the chip to respond or is it unrecoverable?

I believe I will be forced to replace the CPU chips but I need to know why they failed. Can you tell me how to return them for analysis and what this will entail, including the cost. 

We are in an advanced stage of development, running simulations on a network of 75 nodes for use in a PLC application. This poses a serious concern and we need some support from TI. What can you offer?

Thanks,

Pat Harris