All Forums  MCUmall Forums  True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)  Old GQ-2X and 27c322 question

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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 TommyE[/i] [br]Hello Ok, so I've got this old GQ-2X programmer. I've managed to get myself an adapter board for 27C322 chips. When I use my multimeter to map out A18 A19 and A20 (just to be sure) I find that A18 and A19 is connected together on the programmer. This surely shouldn't be the case?? The Rom I'm creating is holding several smaller roms, and I'm going to be switching between them by using the upper A-lines. Problem is that some parts of the rom works, guessing there must something with the programmer and the A18 and A19 lines. Has anyone experienced something like this, and maybe there is an easy fix? Tommy [/quote]    Insert an Image File Check here to include your profile signature.