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ADuCM330: How to evaluate "USER FA KEY" ?

Question asked by aimPoint on Mar 16, 2016
Latest reply on Mar 24, 2016 by aimPoint

Hi all

 

I am using the debugger of SEGGER that are included with "EVAL-ADUCM330".

 

(1) Use the "J-Link Commander", I have been able to dump display the contents of Flash-ROM in the MCU execution.

 

(2) I confirmed that I could not begin to read content of Flash-ROM using "Flash Protection: User Read Protection" function from "J-Link Commander".

  it is  described in "ADuCM330 / ADuCM331 Hardware Reference Manual UG-716 Rev. B Page 33 of 126"

 

(3) However, using a USERFAKEY register, it can not be read return from the "J-Link Commander".

   If I can correctly use the USERFAKEY it?

 

 

My confirmation procedures are as follows.

 

. 0x12345678, 0x87654321 have been written as "USER FA KEY" in address 0x17FE8

. Write the 0xF456, 0xF123 to FEEKEY by MCU code.

. Write the 0x0000 to FEECON1 by MCU code.

. I'm confirmed, cannot read Flash-ROM contents by using "J-Link Commander".

. Write the 0xF456, 0xF123 to FEEKEY by using "J-Link Commander".

. Write the 0x12345678 to USERFAKEY0 by using "J-Link Commander".

. Write the 0x87654321 to USERFAKEY1 by using "J-Link Commander".

. Write the 0xF456, 0xF123 to FEEKEY by using "J-Link Commander".

. Write the 0x0001 to FEECON1 by using "J-Link Commander".

. I'm re-confirmed, But, cannot read Flash-ROM contents by using "J-Link Commander".

 

Best Regards

aimPoint

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