All Forums  MCUmall Forums  True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)  Can't read data from 93C46 yet others seem okay

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by tekky[/i] [br]Hi, I went to read a 93C46B eeprom today and it wouldn't read. Data buffer shows all "00" even when I check a new blank one. Should be full of "FF". 93C66 does the same ... all "00" If I run the erase function, it fails because it's full of "00" still. Restarted the programmer many times, along with the PC. The PC is not connected to the net, so it hasn't updated ... and I read some 93C46B only a week ago, perfectly okay. I checked other eproms, eg 27C256 and it reads okay. I set device ID as 24C04 and "read" it (with none in the socket) ... and it came up with all "FF" data as per normal. I did the Test H/W and the Voltage Diagnostic and all came up okay. Any idea what is wrong and how I can restore it please? Thanks. [/quote]    Insert an Image File Check here to include your profile signature.