All Forums  MCUmall Forums  True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)  M27C256B and random chip verify error

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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 luismtlopes@gmail.com[/i] [br]Hi you all! Im a user and fan og the CG line of programers, and have one for about a year, and sometimes have some trouble writing/verifing chips. This time I was working wit M27c256B wicth need UV to blank and its a lot harder to rerwrite... I write a file for car remaping and verify ok and car runing fine. Got a 2nd new blank chip and write a second mod file 2 days after and car didn t work. Verify both chips and the old one sometimes got verify errors and the mod2 was fine but car didn t start. tryed 2 or 3 times and mod file was ok. Later etarted to have problems in verifiing chips that gave errors. At night tryed again but after read verify started to give more errors. As sometimes it gives this errors in other chips (like 29f010)any ideia what could be? I also tryed to write again the same chip with same file without deleting, and strangly it did and verify 100% Can this improve anything? Shouldn t the write guarantee that data is all there or should we rewrite the chip twice?? Thanks for ideias [/quote]    Insert an Image File Check here to include your profile signature.