SAMD51 - M4 security bit erase problem

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rock5442107
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Posted by rock5442107: Thu. Nov 7, 2019 - 09:35 AM
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I really hope that someone can help me.

 

I simply explain my toy, "Adafruit Metro M4 Express featuring ATSAMD51".
I use Atmel Ice as a tool, Link to SWD location.
I stupidly set the security position, Since then my world has become very miserable

 

1573110009162.jpg

security bit is set, I won't be able to read device through Atmel Ice

1573111101288.jpg

 

How can I erase the security bit? I can't find a way to solve it.

 

 

Tags:

Atmel SMART ARM-based MCUs and MPUs, Atmel Cortex-M MCUs
Last Edited: Thu. Nov 7, 2019 - 09:36 AM
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Lajon
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Posted by Lajon: Thu. Nov 7, 2019 - 10:35 PM
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Is chip erase not working? It's in "Memories" in device programming.

/Lars

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rock5442107
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Posted by rock5442107: Fri. Nov 8, 2019 - 02:39 AM
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I really want to do chip the erase action, but after I setting the "security bit".

The chip can't reading device ID.

So it’s a "security bit" issue, causing my chip to fail to read the device.

I hope someone can help me, thank you very much.

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meolsen
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Posted by meolsen: Fri. Nov 8, 2019 - 02:58 AM
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Try to not read the device id... Just go to memories and perform a chip erase...

:: Morten

 

(yes, I work for Atmel, yes, I do this in my spare time, now stop sending PMs)

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rock5442107
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Posted by rock5442107: Fri. Nov 8, 2019 - 09:41 AM
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I tried to erasing device. 

 

Last Edited: Fri. Nov 8, 2019 - 09:47 AM
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rock5442107
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Posted by rock5442107: Mon. Nov 18, 2019 - 03:50 AM
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help me please 

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BlueSock
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Posted by BlueSock: Wed. Nov 20, 2019 - 02:31 AM
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Try hitting the Apply button before trying to read the device. Make sure you are also using the correct tool, not just selecting "Atmel-ICE". My two cents...

 

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