Fail to connect LPC5534 via SWD

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Fail to connect LPC5534 via SWD

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LEGR
Contributor I

I cannot connect to LPC5534 after program it the first time.

Using
J Link+ Debugger V9.3
MCUXpresso IDE v11.5.1 [Build 7266]
LPC5534

After the first programming I cannot connect to the controller via J-Flash, J-Flash Lite (both 7.62c) or Ozone Debugger 3.28e. The internal bootloader starts the application which is running and available via Modbus Poll.
By trying to download a new program in the µC there is a reset behavior, but the programming is not possible.

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Alice_Yang
NXP TechSupport
NXP TechSupport

Hello @LEGR 

 

How about enter ISP mode, then erase full chip, connect again. 

About detail refer to:

https://community.nxp.com/t5/LPCXpresso-IDE-FAQs/Regaining-debug-access-to-target-MCU/m-p/473923  

 

BR

Alice

 

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