MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
 Password:
Save Password
Forgot your Password?

 All Forums
 MCUmall Forums
 True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)
 AT25020NB Issue

Note: You must be registered in order to post a reply.
To register, click here. Registration is FREE!

Screensize:
UserName:
Password:
Format Mode:
Format: BoldItalicizedUnderlineStrikethrough Align LeftCenteredAlign Right Horizontal Rule Insert HyperlinkInsert EmailInsert Image Insert CodeInsert QuoteInsert List Spell Checker
   
Message:

* HTML is OFF
* Forum Code is ON
Smilies
Smile [:)] Big Smile [:D] Cool [8D] Blush [:I]
Tongue [:P] Evil [):] Wink [;)] Clown [:o)]
Black Eye [B)] Eight Ball [8] Frown [:(] Shy [8)]
Shocked [:0] Angry [:(!] Dead [xx(] Sleepy [|)]
Kisses [:X] Approve [^] Disapprove [V] Question [?]

   Insert an Image File
 Check here to include your profile signature.
    

T O P I C    R E V I E W
maxhohenlohe Posted - 08/15/2014 : 11:02:43
Has anyone had any problems with the AT25020NB that is used in several GM instrument clusters?

Selecting AT25020 doesn't work at all and AT25020A reads fine, but doesn't seem to write correctly.

Original Dump From Chip
1C F4 FF FF 84 FF FF FF FF FF FF FF 1C F4 FF FF 84 FF FF FF FF FF FF FF 1C F4 FF FF 84 FF FF FF FF FF FF FF

Replacement
0D D6 FF FF FF FF FF FF FF FF FF F8 0D D6 FF FF FF FF FF FF FF FF FF F8 0D D6 FF FF FF FF FF FF FF FF FF F8

Read after failed verification
0D F4 FF FF FF FF FF FF FF FF FF FF 0D F4 FF FF FF FF FF FF FF FF FF FF 0D F4 FF FF FF FF FF FF FF FF FF FF
1   L A T E S T    R E P L I E S    (Newest First)
ZLM Posted - 08/19/2014 : 14:54:48
try to use slower speed and see if it works.

MCUmall EPROM BIOS Chip Burner Forum © Copyright 2003 - 2009 Mcumall Electronics Inc. Go To Top Of Page
Generated in 0.03 sec. Snitz Forums 2000