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TMS320F28069: variable not assigned correctly

Part Number: TMS320F28069


Hi,

my customer is using TMS320F28069 and find problem below:

uwCpuToCla1_PvCtrl[4]-[7] are not assigned correctly, it should be 5, but as shown below the value are random.

Looking at the assembly, we find the offset jumps from 0x3F to 0, is it causing the random value of uwCpuToCla1_PvCtrl[4]-[7]? Why would it happen?