While drawing a schematic and using a part from the library component list, specifically the Microchip 16F84A, I have discovered an inconsistancy in the...
OOPS. My previous post on this subject is WRONG! I was using the SSOP component not the DIP component. The pinouts are absolutely correct. mea culpa! I...
I'm still getting used to the ExpressPCB software, so let me make sure I understand this right. I would use the ribbon connector to get my 8 pins (2x4) in the ...
Frederick R. Vobbe
w8hdu@...
Jan 3, 2005 3:51 pm
89
Actually, it is much easier when using an imported schematic because the pins you need to connect are highlighted in blue. You use the "highlight net ...
... Not really. When you import the schematic netlist it helps you route all the traces to the right spot. Click on a part's pin, and all the other part pins...
Dennis Hawkins
n4mwd@...
Jan 5, 2005 2:46 am
91
I must be missing a step or something. I've created a schematic, and ran a netlist check. Could not find a way to make or create a netlist. In the board...
Frederick R. Vobbe
w8hdu@...
Jan 7, 2005 12:51 pm
92
Fred, I am in the middle of a installing a new hard disk and I don't yet have the program reloaded yet, so the this may or may not be accurate advice. If I...
Dennis Hawkins
n4mwd@...
Jan 8, 2005 1:14 pm
93
Dennis, That's correct. Select "Link schematic to PCB" from the "File" menu. After placing one or more parts, select "Highlight net connections" from the...
Folks, I have built a small board for an LT1074 switching buck converter, tested it and uploaded the files. My main interest was output ripple. This the...
I am designing a circuit board and wish to use SMTs, especially resistors and capacitors in size 0805. I need both polarized and unpolarized capacitors. I have...
Hi Vic, For 0805 componets look on the DigiKey web site under chip resistors and ceramic capacitors. There is a list of package/cases, 0805 is in that list. ...
Nick, Thanks for the reply. I preused the DdigiKey site as suggested and got the data sheets. Would you know what their Cut Tape means? Regards, Vic ...
A trick I've found that makes life much easier when using Digikey...... from their web page, just search on the value and size, such as "0.47 805". This...
Vic, Cut Tape means that instead of getting (and paying for) a full reel of components you will get a piece of tape with few components cut from the same reel....
By the way, if you happen to live in the SF Bay area, another good place to buy SMT components is Halted Electronics (aka HSC, http://www.halted.com/ ) in...
I want to use a small SMT oscilator in a circuit and have not had good results trying to design my own so I am for one. If you have such a critter, would you...
I concur with Nick, as a former South SF Bay resident for 23 years, I would highly recommend Halted Electronics as an excellent source for parts/ compents. ......
Vic, Are looking for an oscillator? As far as I know ExpressPCB doesn't have "stock" footprints for a SMT oscillators. If your already have the oscillator,...
Nick, I am working on a project that incorporates two sensors, an ADXL202 accelorometer and a digital compass. I am using a PIC16F876 to gather data from the...
I need to build a component with a pad size of 1.3 X 3.0 mm. There is no such pad available. The SMT component will have 4 of these. I need to assign a pin...
There's is a pad size 1.40mm x 1.52mm. Put 2 of them together and give them the same number. You'll get a warning from the ExpressPCB - just click OK. ...
Run regedit.exe Navigate to: HKEY_CURRENT_USER\Software\VB and VBA Program Settings\ExpressPCB\Startup and/or HKEY_CURRENT_USER\Software\VB and VBA Program ...
I am putting together a list of improvements to both ExpressPCB and ExpressSCH programs. I would appreciate your input. Any suggestions? Post them here on the...
I think it would be sweet if you could import a bitmap or gif or any sort of duo-tone image file and ExpressPCB would import it as the top layer or bottom ...
How about these: - In the ExpressSCH footprints for the parts are specified, and when the PCB is linked to the schematic, components are inserted into the PCB...
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