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 Post subject: Monolith Pinout - WP pin
PostPosted: January 6th, 2020, 8:36 
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Joined: December 15th, 2007, 12:50
Posts: 52
Hello everyone.

I am trying to recover this flash, but missing WP pin from the diagram. I don't have logic analyzer here to find it, maybe one of you has it?

Help much appreciated.


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 Post subject: Re: Monolith Pinout - WP pin
PostPosted: January 6th, 2020, 10:35 
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Joined: June 11th, 2013, 17:01
Posts: 1422
Location: Phoenix, AZ USA
yco wrote:
Hello everyone.

I am trying to recover this flash, but missing WP pin from the diagram. I don't have logic analyzer here to find it, maybe one of you has it?

Help much appreciated.

You usually don't need need the WP pin.

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 Post subject: Re: Monolith Pinout - WP pin
PostPosted: January 6th, 2020, 12:11 
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Joined: October 24th, 2009, 15:22
Posts: 684
Location: Poland
WP is not important.

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 Post subject: Re: Monolith Pinout - WP pin
PostPosted: January 6th, 2020, 12:25 
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Joined: December 15th, 2007, 12:50
Posts: 52
I am aware of that. This chip has a lot of byte errors. I played with voltage levels without positive results. I was told by a colleague that actual read-retry routines in VNR won't be effective without WP signal. Is that correct?


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 Post subject: Re: Monolith Pinout - WP pin
PostPosted: January 6th, 2020, 13:22 
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Joined: October 24th, 2009, 15:22
Posts: 684
Location: Poland
yco wrote:
I am aware of that. This chip has a lot of byte errors. I played with voltage levels without positive results. I was told by a colleague that actual read-retry routines in VNR won't be effective without WP signal. Is that correct?


IMHO no :) Try read this dump with slow mode or connect VCCq instead VCC.

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 Post subject: Re: Monolith Pinout - WP pin
PostPosted: January 6th, 2020, 14:00 
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Joined: December 15th, 2007, 12:50
Posts: 52
arvika wrote:
IMHO no :) Try read this dump with slow mode or connect VCCq instead VCC.

I will try that tomorrow.
Thanks.


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 Post subject: Re: Monolith Pinout - WP pin
PostPosted: January 7th, 2020, 12:27 
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Joined: January 19th, 2017, 10:54
Posts: 21
Location: Poland
Could you send screenshot of 'Read Memory Chips' Window?

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