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Imprecise Bus Faults and Write Buffer

Question asked by giddi.phani on Aug 18, 2011
Latest reply on Aug 19, 2011 by STOne-32
Hi All,

Is there a way to disable the Write buffer on STM32F103xxx.

The Cortex M3 reference manual talks about "Auxiliary Control Register" which can be used to disable write buffer. Which will turn all imprecise bus faults to precise which means i will know the instruction which caused the fault and fix the code. But the ST Manual says this register is supported only in STM32F2 and L only.

I was wondering if there is any other way to disable write buffer. Or other ways to deal with Imprecise Bus Faults.

This fault happens randonmly and i dont know which specific instruction caused it.

Thanks in advance.