TMS320F28377S: F28377S Bootcode cannot jump to APP

Part Number:TMS320F28377S

Hi Champion.

My customer use F28377S deisng a SCI bootloader themselves and they find boot code cannot jump to app, but if connect Uniflash to verify all code, it can work and when reset, boot code also cannot jump to app. They have try to download app and boot code driect as uniflash, it can run well. So can you give me some suggestion ahout the root cause ?

Thanks!

BR

Joe