Proble with mcu link Pro Debuger when programming LPC55S66 microcontroller.

[SotirisEft]

Hello,

I use MCU-Link Pro Debuger to program a LPC55S66 microcontroller when I enter Debug mode with keil and the Hardware Reset option selected in Deubg settings I noticed that the debuger can not set the reset pin Low. I checked the reset pin and it is working as expected. Any Ideas what is going on? 
Thanks In Advance,

[Julián_AragónM]

Hi @SotirisEft,

This behavior could be caused by the reset pin of the debugger not being connected to the reset pin of your custom board. Could you please confirm they are bridged in your design?

If they are, it may be the reset pin is not being correctly connected to ground.

I hope you find this helpful! Please do not hesitate to ask if any doubt arises.

Best regards, Julián