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TMS320F28P650DK: ADC Interrupt stops unexpectedly during PFC power-up (ADCINTFLG/PIEACK not clearing)

Jihae Oh
Prodigy 20 points

Part Number: TMS320F28P650DK

Hello,

I am currently using the TMS320F28P650DK to control a PFC system. I am encountering an issue where the ADC interrupt stops responding specifically when I begin to scale up the power after applying input.

Upon debugging the frozen state, I found that AdcaRegs.ADCINTFLG.bit.ADCINT1 and PieCtrlRegs.PIEACK.bit.ACK1 are randomly not being cleared.

Please provide a direct solution to this issue and suggest what specific actions I should take to resolve it.

Best regards,