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Flash operation error on LPC11U66JBD48

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Flash operation error on LPC11U66JBD48

‎07-15-2024 12:57 AM
977 Views
Mr_Damian
Contributor I

Hi everyone,

I'm using the above micro and I have a feeling that I have written to a memory that I should of not to and this is what I'm getting: 

Mr_Damian_1-1721030217923.pngMr_Damian_1-1721030217923.png

 

I was wondering if someone had a similar issue and managed to resolve it. 

Best Damian 

 

 

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‎07-15-2024 06:52 PM
955 Views
Alice_Yang
NXP TechSupport
NXP TechSupport

Hello @Mr_Damian 

I suggest you go into ISP mode, then using Flash Magic erase all flash.

It is possible to download an image into the flash on the target that will then prevent any further debug access or connections. The classic cases of this are:

  • The image contains code that sets the MCU clocks up "incorrectly".
  • The image contains code that enables a watchdog timer.
  • The image contains code that puts the MCU into a very low power mode.
  • The image contains code that "switches off" some, or all of the multiplexed debug pins (JTAG/SWD).

About detail you can also refer to thread: https://community.nxp.com/t5/LPCXpresso-IDE-FAQs/Regaining-debug-access-to-target-MCU/m-p/473923  

 

BR

Alice

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