Keyboard Shortcuts
Likes
- Kicad-Users
- Messages
Search
Re: Comments About Eeschema
John,
toggle quoted message
Show quoted text
I have been able to find the IEEE and ASME standards online on the Internet. They are usually in PDF and some may be freely downloaded for non commercial usage because they are copywrited material. --For IEEE 315-1975 (R1993) "Graphic Symbols for Electrical and Electronics Diagrams (Including Reference Designation Letters)" see message number 11068 to see where to go to get a PDF copy that can be downloaded. This standard was withdrawn by ANSI as an American National Standard (ANS) as of June 2004. The IEEE has this as an active standard but there has been no activity on it since being reaffirmed in 1993. --For ASME Y14.44-2008 "Reference Designations for Electrical and Electronics Parts and Equipment" I went to a Chinese Website <www.> and ended up at <www.doc88.com/p-6030462696.html>. This is viewable and maybe can be downloaded but the process is not straight forward. --For ASME Y14.34-2008 "Associated Lists" I also went to the Chinese Website <www.> and ended up at <www.doc88.com/p-5990462641.html>. Again, this is viewable and maybe can be downloaded but the process is not straight forward. Regards, Larry 9V1/WN8P --- In kicad-users@..., John Hudak <jjhudak@...> wrote:
|
Re: Pcbnew EAGLE plugin
Hi Dick,
toggle quoted message
Show quoted text
thank you very much for all that you have contributed. Specialy that you did not only big contributions but also important ones. Surely Kicad is a better software thanks to you!!! Only a few weeks ago I was very glad to see you around proposing new functionalities... I hope you all the best for you new company :) Alain Em 06-06-2012 23:22, dickelbeck escreveu:
|
Re: Mixed part types with multi-part components?
rohchar
Hi,
toggle quoted message
Show quoted text
see below : regards, Charles. --- In kicad-users@..., "rertelt" <rertelt@...> wrote:
|
Re: Mixed part types with multi-part components?
Hi,
I don't know if it is a bug in the last versions, but with a 2008 version we made some components with different parts and they work properly with 2011-07-08 version we are still using. We have a component with 6 different parts, each of them a rectangle, but different rectangles in size. Regards, Pedro. For the pins it work well, but with the artwork KiCAD had some problem:is not a problem still frustrating.creating different artwork for each part is a problem.? libraries I need. This seems to be a nightmare for every program I try, like they assume the parts you need are already there. problem seems to be when I am making a component which has multiple parts, but they aren't all the same. For instance, tonight I am trying to make a big library of transistor and diode arrays that I use. Now I am trying to enter a device (THAT 340) which has two NPN transistors, and two PNP transistors. I define pins 1-3 as NPN for Part A, but then when I define pins 5-7 as PNP for Part B, I go back and it has overwritten the PNP for PART A also! I cannot imagine any reason why this would happen. They have their own pin numbers! If I change the part for pins 5-7 why would it assume that I am changing pins 1-3 which I have already done? block and naming the pins for the whole device. It's easy, but it makes the schematics messy. Any ideas? Am I missing something here? question. of Kicad.Please post your bug reports here. They will be picked up by the creator your symbols/modules to the kicad library.Please visit for details of how to contribute kicad-devel group at ! GroupsFor building Kicad from source and other development questions visit the Links |
Re: kicad thermal/ ground stitching vias
Aurel Cristescu
I?think I got the idea. Both #1 and #2 are working ok (they are not loosing their net - GND -when UNDO is pressed or file is reopened)?IF they have a trace connection to a netlist defined pin.
?
#1 See thermal_vias_...jpg
Thermal vias were added like that: add trace from pin 20 (GND) to center of pin 33 and place via. Then each via was moved on desired position and trace was preserved (not deleted).
If you reopen BRD or make an UNDO cycle the vias will preserve GND net connectivity.
#2 See gnd_pane.... jpg
As advised by Robert
?
Thanks a lot for help
From: Ivica Kvasina
To: "kicad-users@..." Sent: Thursday, June 7, 2012 4:38 AM Subject: Re: [kicad-users] kicad thermal/ ground stitching vias ?
this is exactly what I do, I find it kinda annoying... there should be better way.
i tried just stitching some vias without using trace and that was a bad idea. actually the idea was good but PCBNew didn't work as expected - vias placed this way didn't get the net assigned. as a result PCB was fine but if one had to reflow zone for example or just run DRC, all those vias would become orphans.
From: Robert To: kicad-users@... Sent: Wednesday, June 6, 2012 9:51:32 AM Subject: Re: [kicad-users] kicad thermal/ ground stitching vias ?
On 06/06/2012 14:26, aurelcristescu wrote: > Hello. > > I am new to Kicad and I did not find a proper way to resolve these > two things: > > 1) Place thermal vias under a component to transfer the heat to other > plane layers (for example connect a QFN with GND pad underneath to an > burrier GND plane) http://tech.groups.yahoo.com/group/kicad-users/files/QFN_MLF/ http://tech.groups.yahoo.com/group/kicad-users/files/IPC%20Modules/ > 2) Place ground stiching vias to connect TOP and > BOTTOM GND layers (like in RF routing). First create two ground zones as required. Then start laying a track at any component pad that is connected to ground. At regular intervals place a via and carry on tracking. The ground track will switch from one layer to the other. Don't return to the start point. Finally fill your zones (I usually just run the DRC to do this). Regards, Robert. -- () Plain text email - safe, readable, inclusive. /\ http://www.asciiribbon.org/ |
Re: Small open copper plane for setting/testing PCBs
Hi,
We have used this method for years, with other programms and from 2005 with Kicad in "real professional use". We make a component and a footprint called testpoint. The foot print is usually a small circle, depending on the design. And we have in the schematic a component similar to a power flag, so we really know where is any testpoint in the circuit. Regards, Pedro. I think it would be good, if KiCAD can "draw" on copper layers. So it wouldbe possible to place such Testpoints in any shape needed "quick n' dirty" without harming the schematic. grapic elements had to become a net and have to be possible on copper. 1cm) open copper ground planes on the edges of our boards for setting trimmers and testing the PCBs. can clip our GND-clip of the oscilloscope to and sometimes this is a really shi**y procedure so that in the end you have to solder small pieces of copper wire to a GND pin of another component to clip your crocodile clip to. think about that? Good or bad idea?
|
Re: Small open copper plane for setting/testing PCBs
Andy Eskelson
Kicad CAN draw on the copper layers, you can place text on the layers
easily enough. There is also a utility that enables you to import a graphic to be placed on the copper layers. However if you are only talking about a "quick and dirty" method, do the main layout, run the checks and correct. Then tun on DRC and thay will enable you to place any module you want anywhere. So just define a module with the required pad shapes to make up what you want. (use SMD pads) Andy On Thu, 07 Jun 2012 20:19:12 -0000 "rertelt" <rertelt@...> wrote: I think it would be good, if KiCAD can "draw" on copper layers. So it would be possible to place such Testpoints in any shape needed "quick n' dirty" without harming the schematic. |
Re: draw address and databus
First of all look at the sample projects, several use multi-sheet drawings. There are different ways to pass signals between pages.? One way is to use global labels (this should be reserved for really global things, like GND). The normal way is to use sheet labels: 1. create new sheet (place it somewhere in the main sheet) 2. enter the new sheet 3. create some circuit and add some hierarchical labels (each of them must have unique name on one sheet) 4. navigate back to main sheet (right click and select "LEAVE SHEET" for example) 5. zoom in on box representing new sheet (one that we just left, the one with
circuit and hierarchical labels) 6. rightclick on the box and select "IMPORT SHEET PINS" and place the pin at one of the box edges 7. repeat step 6 until all pins are imported 8. finish wiring of the main sheet Ivica From: kplaetevoet To: kicad-users@... Sent: Thursday, June 7, 2012 4:00:22 PM Subject: [kicad-users] draw address and databus
?
Hello,
I'm a kicad beginner and want to use multiple sheets. I want to connect address bus onto one page to address bus onto second page. i have tried to follow the getting started in kicad guide.pdf The only different is that there is everything onto the same page. I have replaced the label by a global label on the bus but no connection is created. How can i solve this? thanks in advance |
Re: draw address and databus
JorgeF_Tech
¿ªÔÆÌåÓý? Hi ? Each hierarchical sheet is treated like an independent entity. Just check if you put the same global label in all the address bus sections on the different sheets. ? ? Best regards Jorge ? ? De: kicad-users@... [mailto:kicad-users@...] Em nome de kplaetevoet ? ? Hello, |
Re: Mixed part types with multi-part components?
For the pins it work well, but with the artwork KiCAD had some problem:
toggle quoted message
Show quoted text
On all parts it places the same artwork. I call it a bug... Roland --- In kicad-users@..., Ivica Kvasina <kvasina@...> wrote:
|
Re: Small open copper plane for setting/testing PCBs
I think it would be good, if KiCAD can "draw" on copper layers. So it would be possible to place such Testpoints in any shape needed "quick n' dirty" without harming the schematic.
toggle quoted message
Show quoted text
Also it would be possible to round up T-crossings with arcs. For this the grapic elements had to become a net and have to be possible on copper. This is one point on the "List who avoid KiCAD in real professional use". Roland --- In kicad-users@..., "osterchrisi" <osterchrisi@...> wrote:
|
draw address and databus
Hello,
I'm a kicad beginner and want to use multiple sheets. I want to connect address bus onto one page to address bus onto second page. i have tried to follow the getting started in kicad guide.pdf The only different is that there is everything onto the same page. I have replaced the label by a global label on the bus but no connection is created. How can i solve this? thanks in advance |
New file uploaded to kicad-users
Hello,
This email message is a notification to let you know that a file has been uploaded to the Files area of the kicad-users group. File : /Designkicadlibrary.pdf Uploaded by : josh_eeg <josheeg@...> Description : Design a kicad library file using kicad quick library generator tutorial ways I found to make it efficent. You can access this file at the URL: To learn more about file sharing for your group, please visit: Regards, josh_eeg <josheeg@...> |
Re: DRC and managing high current segments
on one of the jobs i had same problem. i just left the track as is and then added zone over segment that was high current. From: mitchelj56 To: kicad-users@... Sent: Thursday, June 7, 2012 9:00:00 AM Subject: [kicad-users] DRC and managing high current segments
?
Hi,
I'm having some trouble managing high current segments with DRC and need some advise. When design rule is set up to associate a net with a high current track, then the whole of that net takes on a high current track status. In practice, usually you would only need some segments of a track to be high current, while the remaining segments are low current. Typically for example a H-bridge driving a motor. The high current paths are from battery leads to H-bridge, but the other electronics hanging off the ground and positive rails are low current. I can't seem to set individual segments in the design rule set up dialog box to be high current. (I can set tracks widths manually as a work around, but that is not the point - I want it to be set up as a design rule so that it checks for violations automatically without having to manually inspect every track and segment.) Any suggestions? |
DRC and managing high current segments
Hi,
I'm having some trouble managing high current segments with DRC and need some advise. When design rule is set up to associate a net with a high current track, then the whole of that net takes on a high current track status. In practice, usually you would only need some segments of a track to be high current, while the remaining segments are low current. Typically for example a H-bridge driving a motor. The high current paths are from battery leads to H-bridge, but the other electronics hanging off the ground and positive rails are low current. I can't seem to set individual segments in the design rule set up dialog box to be high current. (I can set tracks widths manually as a work around, but that is not the point - I want it to be set up as a design rule so that it checks for violations automatically without having to manually inspect every track and segment.) Any suggestions? |
Re: Pcbnew
On 06/06/2012 22:46, Peter Bennett wrote:
2. When you place a right-angle bend in a track, PCBNew insists onIt's easy to overcome this, but a little tricky to describe. Where you want the 90 degree bend just click twice (NB: click twice is does not mean double-click) and set off in the direction you want the track to take. When you click at the next node the track will be laid bent through 90 degrees as required. Note that in general this is not good practice, but sometimes it needs to be done. Regards, Robert. -- () Plain text email - safe, readable, inclusive. /\ |
Re: Pcbnew EAGLE plugin
Miguel Angel Ajo Pelayo
Hi Dick,?
? ? 2012/6/7 dickelbeck <dick@...> --
? ?Thanks a lot for the hard work and leadership you've been giving to KiCad, and the funding SoftPLC has been giving, at the end paying your time means funding.
It's a hard for any company, open source software development comes with ?a very blurry and long term ROI, when it does even exist. ?
? ?A strategy for funding won't be bad at all for the project, may be willing and proven developers could offer a list of features they'd find interesting to develop, including a price tag. Later we get the features voted, and then we put them on?? (or any equivalent platform) to get them funded.
?
Probably we should be maintaining a list of donors in the new KiCad website, it's a way to pay something back to SoftPLC ?
Woow!, nice!, I've built a quad copter once, they're spectacular, I wish you very good luck. Please tell us when the products are ready to take a look.
?
As you told me once, donating your time to an opensource project is like donating blood, if you do it too much, then you're dead. We live on a capitalist world, and food won't come to our houses if we "code" for free. Even if we lived in a?communist?world, then we must be doing our assigned duties... and not coding what we wanted to. So money is necessary, and finding a strategy to fund this project would be of a big benefit to all the users. KiCad has a lot to offer to everyone.
Good luck :) ? Miguel Angel Ajo Pelayo +34 636 52 25 69 skype: ajoajoajo |
Re: Pcbnew
¿ªÔÆÌåÓý[quote]when you load the netlist you will get all the components in a pile in the corner of the board.[/quote]to make things easier, you can get KiCad to at least line up all the modules (footprints) sequentially in a block, instead of piling them on top of each other in a mess. In PCBNew, Select the icon "MODE FOOTPRINT : Manual and Automatic move and place modules" (third icon form the right). Select any one module, and bring up the context menu. Select GLOB MOVE AND PLACE Select MOVE ALL MODULES or AUTOPLACE ALL MODULES On 6/6/2012 11:01 PM, Andy Eskelson wrote: ? |