LPC MicrocontrollersのトピックRe: Fail to connect LPC5534 via SWD

Fail to connect LPC5534 via SWD

LEGR — Wed, 26 Apr 2023 08:02:14 GMT

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.

Re: Fail to connect LPC5534 via SWD

Alice_Yang — Thu, 27 Apr 2023 02:08:26 GMT

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

Alice