I have a serious problem.
The debug mode is suddenly no longer available.
This phenomenon happened just after connect debug mode on IAR tool.
In this case the supply voltage comes from USB 5V is supplied (JP1 3& 5), and emulator is connected.
When wall 5V is used(JP1: 3&5), I did not see this problem.
Please give me advice on the way to fix this issue.
And if there any board setting limitation please let me know.
More info,when the push reset SW, the pro_3V current is around 3mA, but when relase reset SW, the current is around 1mA....