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I can unsecure the MCU(S12 and secured) with usb multilink, but I can't erase flash data?

Question asked by David Dai on Jun 12, 2015
Latest reply on Jun 18, 2015 by David Dai

Hi,

 

I use HI-WAVE and USB BDM Multilink to debug my MM912H634,

 

Step1: I unsecure the MCU, passed.

Step2: I click HC12Multilink->Flash...

 

then warning as below,

 

"Error while loading diagnostics to target system.

The chip may be secured, or the derivative selected be wrong."

 

So I can't access to the flash to erase it.

Any reason?

 

Thanks a lot!

 

Best Regards

 

David dai

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