MPC555 strange double reset

Dear all,

I'm developping a motor control project with the MPC555 (at the 
moment, our board have the following processor MPC555LFAZP40).

I have discovered the following strange fact :
The processor seems to perform two times my initialisation procedure.

The problem is that for instance I can not explain why I have this 
strange phenomenon (I'm looking for the root cause for some weeks but 
now I'm no more ideas : PORESET signals, internal watchdog have been 
excluded to be the cause of this RESET).

I have modified my software in order to send through a RS232 link the 
RSR register value and the figure 0xC0B8 seems to be the last code 
value of the last "reset" cause (Loss of lock reset status). The 
problem is that I can not explain why I have this value in the RSR 
register.

Apparently, some guys already had a similar problem 1 or 2 years ago 
("strange reset" keyword in the past messages).

Does anyone know if this problem has already been found and resolved ?

Does anyone have any idea in order to solve the problem ?

Thanks





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