All Forums  MCUmall Forums  True USB Willem Programmer (GQ-2X,3X,4X & GQ-4x4)  GQ-4X and 12.5v

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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 Giants[/i] [br]Hi I have a GQ-4X programmer (H/W Re: GQ-4X Re-2.20 (SW Re. 6.29) Impossible to programme a Eprom 27c256 I don't understand something... For programm this chip, It's need vpp to 12.5V But, USB give me 5V or 6V max And if i user a external alimentation, you write on botom on the GQ-4X 9V 200ma AND, in this GQ-4X they are a 7805 regulator in input and, in your product information, you say : ..Vcc supported among: 3.6V, 5V, 5.5V, 6.5V ...On-Board MCU for stable performance & automatic/scriptccurate voltage control SO, for me it's impossible to this progr. to work with 12.5V that is necessary for programm old chip like 27C256 It's normal ? thks a lot [/quote]    Insert an Image File Check here to include your profile signature.