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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 Krankshaft[/i] [br]I just wanted to post some more corrections I made to the devices.txt file. Specifically for the 27C series of EPROMs. I discovered this because I had a few EPROMs that didn't program properly with the voltages outside of the manufacturers specified range. First off the generic devices (27C64, 27C128, etc) without a manufacturer specified: The 27C256 had the wrong VPP 12 volts instead of 12.7. The specs in every datasheet I've read specify 12.7 volts +- 0.25 volts 12 volts is way out of tolerance. It also had the wrong WVCC 5.5 volts instead of the standard 6.2 volts. The other generic devices simply had the wrong WVCC 5.5 volts instead of 6.2 volts which I corrected. Generic 27C Corrections: Name="27C64",ID="XXXX",Class="27C64",Category="EPROM",MFG="ALL(Generic)",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V"; Name="27C128",ID="XXXX",Class="27C128",Category="EPROM",MFG="ALL(Generic)",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V"; Name="27C256",ID="XXXX",Class="27C256",Category="EPROM",MFG="ALL(Generic)",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V"; Name="27C512",ID="XXXX",Class="27C512",Category="EPROM",MFG="ALL(Generic)",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V"; Now onto the NM27C and NMC27C series of EPROMs these are 27C series EPROMs made by National Semiconductor. All of these had the wrong VPP according to the manufacturers datasheet 12 volts instead of 12.7 and the wrong WVPP 5.5 volts instead of 6.2 volts which I corrected. National Semiconductor NM27C and NMC27C Corrections: Name="NM27C256",ID="8F04",Class="27C256",Category="EPROM",MFG="National",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V"; Name="NMC27C256",ID="8F04",Class="27C256",Category="EPROM",MFG="National",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V"; Name="NM27C256B",ID="8F04",Class="27C256",Category="EPROM",MFG="National",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V"; Name="NMC27C256B",ID="8F04",Class="27C256",Category="EPROM",MFG="National",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V";//by EZo Name="NM27C512",ID="8F85",Class="27C512",Category="EPROM",MFG="National",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V"; Name="NMC27C512A",ID="8F85",Class="27C512",Category="EPROM",MFG="National",VCC="5V",WVPP="12.7V",WVCC="6.2V",BVCC="5V",RVPP="5V";//by EZo [/quote]    Insert an Image File Check here to include your profile signature.