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TMS570LS1227: The HET is used as a GIO input to trigger a falling edge interrupt

Part Number: TMS570LS1227
Other Parts Discussed in Thread: TMS570LC4357

Hi team,

Here's an issue from the customer may need your help:

Configure the HET1_18 pin as an input and enable the interrupt for Edge0. But edgeNotification is not triggered. The customer would like to know is there any routines available for reference? 

Could you help check this case? Thanks.

Best Regards,

Cherry