Perhaps some additional information: (1) Inside ILLEGAL_ISR, I assign a unique value to specific RAM location. (2) While running my code, I cause a voltage drop sufficient to reset DSP (lower than 7 V). (3) After reset, RAM contains unique value.
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Forum Post: RE: TMS320F2809-Q1: Might the ILLEGAL_ISR execute during brownout, just prior to reset?
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