Re: gEDA-user: (hierarchy-uref-mangle disabled) doesn't seem to work when generting a bom
Hi all I resolved this issue (given enough time even a monkey can solve his problems!). I'm posting just for future reference. I was using (hierarchy-uref-separator _) instead of (hierarchy-uref-separator /) The separator appears to be important even if it is disabled by (hierarchy-uref-mangle disabled) By keeping the separator as a / everything works. I was also wrong to say that the operation was different for gnetlist and gsch2pcb. The operation appears to be the same. On Thu, 2010-09-02 at 15:40 -0500, Mike Crowe wrote: Hello group I am doing my first hierarchial design. In my local gnetlistrc I have (hierarchy-uref-mangle disabled) un-commented as I don't want the Sn_ in the front of the uref. gsch2pcb does what I desire and correctly drops the Sn_ prefix. When generating a bom. The prefix is not dropped which is NOT what I want. If I change from (hierarchy-uref-order append) to (hierarchy-uref-order prepend) The Sn_ value is placed at the end, so gnetlistrc seem to be picked up, but I'm not sure where as I don't see it in the .scm that I'm using. My command line syntax is gnetlist -g xmlbom circuit.sch -o circuit-bom.xml I tried the nomunge option, but it didn't seem to have any effect. gnetlist --nomunge -g xmlbom circuit.sch -o circuit-bom.xml Yes, I am using a scheme that I hacked from gnet-bom(2?).scm (see attached). So I'm probably at fault, but I don't know where. Could anyone give me some pointers as to what I'm doing wrong? Thanks in advance Mike ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: (hierarchy-uref-mangle disabled) doesn't seem to work when generting a bom
Hello group I am doing my first hierarchial design. In my local gnetlistrc I have (hierarchy-uref-mangle disabled) un-commented as I don't want the Sn_ in the front of the uref. gsch2pcb does what I desire and correctly drops the Sn_ prefix. When generating a bom. The prefix is not dropped which is NOT what I want. If I change from (hierarchy-uref-order append) to (hierarchy-uref-order prepend) The Sn_ value is placed at the end, so gnetlistrc seem to be picked up, but I'm not sure where as I don't see it in the .scm that I'm using. My command line syntax is gnetlist -g xmlbom circuit.sch -o circuit-bom.xml I tried the nomunge option, but it didn't seem to have any effect. gnetlist --nomunge -g xmlbom circuit.sch -o circuit-bom.xml Yes, I am using a scheme that I hacked from gnet-bom(2?).scm (see attached). So I'm probably at fault, but I don't know where. Could anyone give me some pointers as to what I'm doing wrong? Thanks in advance Mike ;;; gEDA - GPL Electronic Design Automation ;;; gnetlist - gEDA Netlist ;;; Copyright (C) 1998-2007 Ales Hvezda ;;; Copyright (C) 1998-2007 gEDA Contributors (see ChangeLog for details) ;;; ;;; This program is free software; you can redistribute it and/or modify ;;; it under the terms of the GNU General Public License as published by ;;; the Free Software Foundation; either version 2 of the License, or ;;; (at your option) any later version. ;;; ;;; This program is distributed in the hope that it will be useful, ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;;; GNU General Public License for more details. ;;; ;;; You should have received a copy of the GNU General Public License ;;; along with this program; if not, write to the Free Software ;;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ;; -- ;; ;; Bill of Material backend written by Matt Ettus starts here ;; ;;; Bill Of Materials Generator ;;; You must have a file called attribs in the pwd ;;; The file should be a text list of attributes you want listed, ;;; One per line. No comments are allowed in the file. ;;; Questions? Contact m...@ettus.com ;;; This software is released under the terms of the GNU GPL ;; Xml Bill of Materials backend written by Mike Crowe starts here ;; shamelessly changed to format output as an xml document ;; question on xml changes should go to mcr...@gcdataconcepts.com ;; converts a bill of materials to a simple bom where the QNames are the ;; schematic attribute names and the geda values are xml CText ;; from here one should be able to .xsl to parse the xml bom ;; to ones own needs. (use-modules (ice-9 rdelim)) ;; guile-1.8 fix (define xmlbom (lambda (output-filename) (let ((port (if (string=? - output-filename) (current-output-port) (open-output-file output-filename))) (attriblist (xmlbomparseconfig (open-input-file attribs ; (xmlbomprintlist (cons 'refdes attriblist) port #\:) ; (newline port) (display ?xml version=\1.0\ encoding=\UTF-8\?\n port) (display bom\n port) (display part\n\trefdes port) (xmlbomprintbom port (xmlbomcomponents packages attriblist) attriblist) (display \n/bom\n port) (close-output-port port) ) ) ) (define xmlbomprintbom (lambda (port bomlist attriblist) (if (not (null? bomlist)) (if (not (null? (caar bomlist))) ; here if a reference designator (begin (display (caaar bomlist) port) (if (not (null? (cdaar bomlist))) (write-char #\, port) ) (xmlbomprintbom port (cons (cons (cdaar bomlist)(cdar bomlist))(cdr bomlist)) attriblist) ) ; else if anything else (begin (display /refdes\n port) (xmlbomprintlist (cdar bomlist) port #\: attriblist) ( if (not (null? (cdr bomlist))) (display \npart\n\trefdes port) ) (xmlbomprintbom port (cdr bomlist) attriblist) ) ) ) ) ) (define (string-insert s i t) (string-replace s t i i)) (define (xmlsearchandappend s1 sstring rstring spos) (let ((fpos1 (string-contains s1 sstring spos))) (if fpos1 (xmlsearchandappend (string-insert s1 (+ 1 fpos1) rstring) sstring rstring (+ fpos1 (string-length rstring))) s1))) (define xmlbomprintlist (lambda (ls port delimiter attriblist) (if (null? ls) #f (begin (display \t port) (display (car attriblist) port) (display port) (display (xmlsearchandappend (car ls) amp; 0) port) ; (display (car ls) port) (display \t/ port) (display (car attriblist) port) (display \n port) (if (null? (cdr ls)) (display /part port) ) (xmlbomprintlist (cdr ls) port delimiter (cdr attriblist))) ) ) ) ; Parses attrib file. Returns a list of read attributes. (define xmlbomparseconfig (lambda (port) (let ((read-from-file (read-delimited \n\t
Re: gEDA-user: Non-linear spice models for power sources operating near stall
Turned out that the mechanical coupling coefffient is so low that a stall cannot occur. So Matthew W.'s #1 approach will work for me. Thanks everyone for the help! Mike On Wed, 2010-06-02 at 20:13 +0200, Armin Faltl wrote: Mike Crowe wrote: 3. More complicated models would vary the inductance depending on rotation speed, electrical frequency and possibly angular position of the rotor... but hopefully you don't have to go that far. All in all... I think Spice will be a pretty awkward tool to do any more than (1.). I'd look at something like University of South Carolina's VTB (Virtual Test Bed). It's free, but closed source. Unfortunately, I believe that the model will be more like #3. The power source is a periodic hydraulic one. My ultimate task is to deliver peak power from the mechanical system regardless of the available input power (wave action). In addition to modeling the motor, I will need to model the mechanical components.I looked briefly at the SC site, but it requires a plug-in that I don't have. How about setting up the differential equations of your dynamic model. If you can formulate them as a system of ordinary explicit de's and as initial value problem, you can use a Runge-Kutta method, that should be readily available as C-source (or at least FORTRAN). ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Non-linear spice models for power sources operating near stall
Hello Somewhat off topic, but I am working on an energy harvesting device which uses a small generator (100W). I am looking for a spice model that I can use as a template to create a model for the motor dynamics near stall. Can anyone point me to a good starting point? Thanks Mike ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Non-linear spice models for power sources operating near stall
On Wed, 2010-06-02 at 09:17 -0700, Matthew Wilkins wrote: I guess it depends how sophisticated you want your model to be. 1. A simple motor/generator model is a resistor, inductor and voltage source in series. The voltage source is proportional to speed. Torque is proportional to current through the winding. You can measure the values directly from the motor; keep the rotor stationary for the resistance and inductance measurements. This is sufficient for a lot of motor modelling work. 2. If you're truly stalling the generator, you might want to map out the inductance measurements at different rotor positions. Also, you might be able to model cogging torque by putting a sinusoidal current source in parallel with the winding, with phase controlled by a multiple of rotor position. 3. More complicated models would vary the inductance depending on rotation speed, electrical frequency and possibly angular position of the rotor... but hopefully you don't have to go that far. All in all... I think Spice will be a pretty awkward tool to do any more than (1.). I'd look at something like University of South Carolina's VTB (Virtual Test Bed). It's free, but closed source. Unfortunately, I believe that the model will be more like #3. The power source is a periodic hydraulic one. My ultimate task is to deliver peak power from the mechanical system regardless of the available input power (wave action). In addition to modeling the motor, I will need to model the mechanical components.I looked briefly at the SC site, but it requires a plug-in that I don't have. __ From: Mike Crowe mcr...@gcdataconcepts.com To: gEDA user mailing list geda-user@moria.seul.org Sent: Wed, June 2, 2010 7:28:43 AM Subject: gEDA-user: Non-linear spice models for power sources operating near stall Hello Somewhat off topic, but I am working on an energy harvesting device which uses a small generator (100W). I am looking for a spice model that I can use as a template to create a model for the motor dynamics near stall. Can anyone point me to a good starting point? Thanks Mike ___ geda-user mailing list [1]geda-u...@moria.seul.org [2]http://www.seul.org/cgi-bin/mailman/listinfo/geda-user References 1. mailto:geda-user@moria.seul.org 2. http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: new components
On Tue, 2010-02-02 at 15:55 -0800, Ben Jackson wrote: On Tue, Feb 02, 2010 at 06:11:44PM -0500, resea...@ottomaneng.com wrote: I'm also creating symbols for an FPGA and a DSP which naturally has alot of pins. I've once heard of using multiple files for the symbols so you For a really simple example look at http://ad7gd.net/xc9536/ where I split the power and IO. Very interesting. I am contemplating my first BGA design with gEDA tools (AT91SAM9G45, Atmel ARM9). The part is a 18 x18 =324 ball device with row designators marked as A-V (missing I,O,Q,S,...). The Pin designators are labels K16, R2, G7, .. with the Alpha first, followed with the number. I tried to put in a pin label like this, but encountered problems with the online tool at (http://vivara.net/cgi-bin/djboxsym.cgi). Has anyone been making BGA parts with multiple symbol files? If so, what do I need to look out for as I go down the development path? (Will multiple symbols process as multiple items on the BOM?, Will the netlister correctly pickup the different symbols. Can Alpha-number designators be used at all? Thanks in advance Mike The symbols are also at http://gedasymbols.org/user/ben_jackson/ I could upload an Altera EP2C8 set of symbols if that would help. One symbol per IO bank, power, and config, iirc. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Complex footprint creation
Hello All! I am building a footprint for an Omron Ultra-low Profile Dome Key membrane switch (PN: b3d see www.omron.com/ecb/products/pdf/en-b3d.pdf for details) . The suggested footprint is a solid disk in the middle and an annular ring around that inner disk. How do I generate a footprint with complicated geometries (not a square, round or oval pad) ? I started with ElementArc() but quickly realized that it generates a silkscreen and not a pad. Do I need to freehand the object in PCB (as traces) then copy and paste? Thanks in advance -- Mike home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Complex footprint creation
OK I have written a crude application that generates a footprint with pads. I still have to work out the details, but the solution looks to be workable. Thanks everyone for your ideas! Mike On Tue, 2009-05-05 at 15:48 -0400, DJ Delorie wrote: Do I need to freehand the object in PCB (as traces) then copy and paste? Or build the arc out of many short pads. Otherwise, use a small pad as the connect point for the element, and manually add the arc later. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user -- Mike home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: gnetlist backend for xml-bom generation
Hi guys In my part of the world it's been Mardi Gras, so I've been out of the office. Sorry for the late reply. Thank Peter for your input it helped lots. I really started understanding things better once I figured out the gnetlist backend-guile-scheme-lisp lineage. After following the examples you provided, and much trial and error, I got the following to do what I need it to do. (define (string-insert s i t) (string-replace s t i i)) (define xmlsearchandreplace (lambda (s1 sstring rstring spos) (let ((fpos1 (string-contains s1 sstring spos))) (if fpos1 (begin (xmlsearchandreplace (string-insert s1 (+ 1 fpos1) rstring ) sstring rstring (+ fpos1 (string-length rstring))) ) (begin s1 ) ) ) ) ) and then to use it, I do something like this; (display (xmlsearchandreplace (car ls) amp; 0) port) It's not perfect as it doesn't really replace the , but rather appends the amp;, but it generates correct xml, so I'm happy. I'll post a patch soon. Thanks again for your quick reply! On Tue, 2009-02-24 at 00:03 +, Peter Clifton wrote: On Mon, 2009-02-23 at 16:55 -0600, Mike Crowe wrote: Hello all I've generated a preliminary gnetlist backend for generating an xml based bill of materials. It seems to be working except that I have to filter the file with sed after generating the netlist to convert to amp;. Two questions 1) Does anyone know how to do this filter conversion directly with the backend toolset (guile)? The hard question... (best ask a scheme guru). You might find a way with the srfi13 library. There are these examples in the docs: ;;; Convert a string to a list of chars. (string-fold-right cons '() s) ;;; Count the number of lower-case characters in a string. (string-fold (lambda (c count) (if (char-lower-case? c) (+ count 1) count)) 0 s) ;;; Double every backslash character in S. (let* ((ans-len (string-fold (lambda (c sum) (+ sum (if (char=? c #\\) 2 1))) 0 s)) (ans (make-string ans-len))) (string-fold (lambda (c i) (let ((i (if (char=? c #\\) (begin (string-set! ans i #\\) (+ i 1)) i))) (string-set! ans i c) (+ i 1))) 0 s) ans) You might find some combination of that, and string-append is useful. OTOH, I'm no scheme guru, and have no idea how fast either of those would be. You might write a procedure which searches for the character, splits the string on it, then makes a concationation of before amp;after . I suspect you could operate recursively on the split string's second half. Don't ask me to figure out what functions are required to find / split the string. You might find something suitable here though: http://srfi.schemers.org/srfi-13/srfi-13.html If you're going to use recursion, tail-recursion is best (to avoid running out of stack space). If I'm getting the explanation right.. the last call (before it returns) in the the recursive procedure should be the one which calls its-self. http://en.wikipedia.org/wiki/Tail_recursion 2) Who do I contact to get my little backend into the main code branch? :-) Send a patch to this list.. talk to Ales, or one of the other developers etc.. Post a patch to sourceforge tracker (but prod us on-list if you don't want it to get ignored / forgotten). Best wishes, -- +---+ Mike Crowe Gulf Coast Data Concepts 611 Nicholson Ave Waveland, MS 39576 e-mail: mcr...@gcdataconcepts.com phone: 228.424.6307 30d 17.753' North 089d 22.022' West home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html +---+ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: gnetlist backend for xml-bom generation
Hello all I've generated a preliminary gnetlist backend for generating an xml based bill of materials. It seems to be working except that I have to filter the file with sed after generating the netlist to convert to amp;. Two questions 1) Does anyone know how to do this filter conversion directly with the backend toolset (guile)? 2) Who do I contact to get my little backend into the main code branch? :-) Thanks -- +---+ Mike Crowe Gulf Coast Data Concepts 611 Nicholson Ave Waveland, MS 39576 e-mail: mcr...@gcdataconcepts.com phone: 228.424.6307 30d 17.753' North 089d 22.022' West home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html +---+ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: pcb 20081128 hangs when loading element data paste buffer
On Wed, 2009-02-11 at 19:31 -0500, DJ Delorie wrote: One option is to run pcb under gdb. When it hangs, hit Ctrl-C in the gdb window and type where to see where it's hung. I started trying to use 'gdb' when I found that other applications where having similar hang problems when doing file management. I ended up rebooting the machine and the problem cleared itself. Thanks for taking the time to respond! Mike ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user -- +---+ Mike Crowe Gulf Coast Data Concepts 611 Nicholson Ave Waveland, MS 39576 e-mail: mcr...@gcdataconcepts.com phone: 228.424.6307 30d 17.753' North 089d 22.022' West home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html +---+ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: pcb 20081128 hangs when loading element data paste buffer
Hello I have been using the 20081128 version without problems. Today, while developing a new footprint, the group of features under the file-load layout group started causing the application to hang. I can load layouts from the command line at start up without problems. The new footprints are not being developed in the library (they are moved there after they have been checked for accuracy). Any ideas of how to reset what might have going wrong? Did some preferences file get corrupted? I moved the ~/.pcb/preferences file away, but it did not seem to change the behavior. Here are some compile time options that I'm using - Compile Time Options - GUI: gtk : Gtk - The Gimp Toolkit Exporters: bom : Exports a Bill of Materials gerber : RS-274X (Gerber) export. nelma : Numerical analysis package export. png : GIF/JPEG/PNG export. ps : Postscript export. eps : Encapsulated Postscript Printers: lpr : Postscript print. As usual thanks in advance. -- +---+ Mike Crowe Gulf Coast Data Concepts 611 Nicholson Ave Waveland, MS 39576 e-mail: mcr...@gcdataconcepts.com phone: 228.424.6307 30d 17.753' North 089d 22.022' West home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html +---+ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Wish list, sort of
On Tue, 2009-01-06 at 12:50 +, Peter Clifton wrote: On Tue, 2009-01-06 at 13:45 +0100, Werner Hoch wrote: libgeda (gschem) has an interface where you can connect a database. So then I write a backend tool that gschem accesses through libgeda that allows it to access information? If so can anyone point me to api docs (even rough ones) to get me started? For which Peter Brett deserves the credit for adding. I've played with it some time ago: Here is the mail I wrote: http://archives.seul.org/geda/dev/Nov-2007/msg00034.html The current homepage is here: http://www.h-renrew.de/h/spicelib/doc/index.html That looks very interesting. I'm sure Peter B would appreciate any feedback you had on the SCM parts source code, based on your experiences so far. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: symbol databases, was Re: Wish list, sort of
On Tue, 2009-01-06 at 20:36 +, Kai-Martin Knaak wrote: On Tue, 06 Jan 2009 07:26:08 -0500, Dave McGuire wrote: But database servers, MySQL servers in particular, are pretty ubiquitous, and the API is easy. No doubt, a data base can be fine and powerful. However, many tasks have to be implemented by the application. From the top of my head: searching, editing, versioning, back-up, character encoding, permissions, import/export, updates, ... Failure to do these tasks properly would cripple the user experience. A directory based approach can refer the user to the general tools of the OS. No need to spend valuable developer resources on this kind of infrastructure. I agree that adding a database adds end user complexity that should probably be avoided. I also agree that there are limited developer resources available, but a new optional interface, largely worked on by new developers would address these concerns. I have used some of the comercial schematic packages that allow integration of attribute information into a database. It provides significant improvements for tasks such as; generating purchasing requests, inventory management, and bill of materials management, and component obsolescence. When viewing the attributes on the schematic, one is looking at the latest component information. Our company uses an internal part number. In the parts database, there is: an inventory table providing part number - location, quantity keying bill of material table providing build number - part number keying component table providing part number keying - general attribute information vendor table providing vendor - part nubmer keying. From these tables we generate Build shortages Bills of materials Purchase requests At this point, I use gschem to create a crappy bill of material which I import into the database. The schematic becomes depricated over time because the attribute info in it does not update as the database is updated. My personal desire is to allow some way of maintaining the attributes through the database, while leaving the graphics and netlist alone as after a board is designed those aspects become pretty much static. If I can do this with gschem then the schematic remains a viable tool. By the way, I also use external version control to maintain schematics (subversion). Works well. They way the development environment is shaking out it appears that adding the back-end tools to do these things is pretty straight forward. (Thanks for the links Werner) ---(kaimartin)--- ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Sorry double post
Sorry about the double post. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Solaris build problems, 'elp?
I second that. VERY NICE. Finally getting away from that dated DOS app looking output. On Mon, 2009-01-05 at 14:25 -0500, Dave McGuire wrote: On Jan 5, 2009, at 2:02 PM, Kai-Martin Knaak wrote: Now if we could only do something about that horrid font. Your wish is Peter Cliftons command. He managed to make gschem use an external font engine for the screen (pango). My blog contains screenshots of an early test version of the pango enabled branch: http://lilalaser.de/blog/?p=90 The text size issue has relaxed since then. And Ales decided to push these features as soon as possible. Beautiful! Wow, I can't wait to see that get integrated. -Dave ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: Wish list, sort of
There was talk a while ago about integrating gschem with a database. Any status change on that? Any way I can help implement/test with mysql? -- +---+ Mike Crowe Gulf Coast Data Concepts 611 Nicholson Ave Waveland, MS 39576 e-mail: mcr...@gcdataconcepts.com phone: 228.424.6307 30d 17.753' North 089d 22.022' West home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html +---+ ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Wish list, sort of
On Mon, 2009-01-05 at 22:12 +, r wrote: On Mon, Jan 5, 2009 at 10:02 PM, Mike Crowe mcr...@gcdataconcepts.com wrote: There was talk a while ago about integrating gschem with a database. Any status change on that? Any way I can help implement/test with mysql? What do you mean by integration with database? AFAIR there were two database-related ideas discussed here: - attaching to a (online?) symbol database. I don't know details - that's PCB guys' toy. - storing design data in a database. IMHO a good idea but not very popular here. This second thing. In my (weak) world view of electrical schematics there exist three types of data netlist data - provides component to component connectivity) graphical data - infomation related to rendering a graphical schematic component data - additional infomation about the component, not strictly needed for the schematic (footprint, vendor info, price availability) I don't know if putting gschem netlist data or the graphics data into a database helps with much, as relationalism there doesn't seem to be of much benefit. Putting the component data into a database can be of significant benefit, not so much at the design, level, but the production / project management level. Most of my schematic attribute data for a component resides in a mysql database, as it is simpler to maintain. I am also able to maintain a part inventory with it and generate per unit board cost data with it. I guess that I have fallen in love with relational databases. Since I'm quickly heading toward age 50, perhaps love is a little strong, maybe something more like a strong affection for:-) Regards, -r. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: pcb anti-environment coating?
I have used these for enclosures in the past. They seem to work OK (no complaints with moisture build up) http://www.gore.com/en_xx/products/venting/protective/telecom/adhesive_holder.html I don't have a good handle though on where to purchase them in small qty though. On Thu, 2009-01-01 at 17:07 -0500, Dave McGuire wrote: On Dec 31, 2008, at 8:39 PM, Bob Paddock wrote: I'd put them in a sealed box, with a Gore-Tex Vent so that the enclosure can 'breath' but not pass water. This is an interesting idea. Can Gore-Tex be found in small squares for this type of application, or would one be stuck destroying an expensive jacket to get some? -Dave -- Dave McGuire Port Charlotte, FL ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Attaching trace to a rectangle
On Mon, 2008-12-01 at 22:14 -0500, DJ Delorie wrote: Ok, the problem seems to be that your bloat/shrink are set to the design rules, instead of just a little less. Change them to 9.99 mil and it works. I'm not clear where these settings are? Do edit the ~/.pcb/preferences file manually? Bloat and shrink are *not* the same as line and space. They're the amount that your copper can be expanded or contracted and still maintain the same connectivity. If you shrink your copper traces by 10 mil, they go away, losing connectivity. Shrink by 9.99 mil and there's still 0.01 mil left. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Attaching trace to a rectangle
On Tue, 2008-12-02 at 11:34 -0500, DJ Delorie wrote: On Mon, 2008-12-01 at 22:14 -0500, DJ Delorie wrote: Ok, the problem seems to be that your bloat/shrink are set to the design rules, instead of just a little less. Change them to 9.99 mil and it works. I'm not clear where these settings are? Do edit the ~/.pcb/preferences file manually? For the GTK hid, it's File-Preferences I always hate to show my ignorance, but... I compiled the latest released version yesterday using the default configuration options, version 20081128,... - Compile Time Options - GUI: gtk : Gtk - The Gimp Toolkit Exporters: bom : Exports a Bill of Materials I looked under File-Preferences and don't see anything resembling bloat / shrink, or preferences for polygons. Ideas? For the Lesstif hid, it's Edit-Board Sizes ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Silkscreen Logo
If an SVG file generated with third party software package (Potrace, AutoTrace, Inkscape or Delineate, ) exists, then an xslt can in theory be used to generate output compatible with pcb. Is someone working on such an xslt? If not, what would be the best way to import the resulting output into PCB. What spec would the output need to conform to? I've just finished writing a few xslt's to generate build packages from BOM's stored in relational DB's. It's a way cool way to handle build packages. S,... what I'm saying is that if no on is working on this, I might be willing to give it a shot (he says with great trepidation). ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user -- Mike home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: External attribute read/write - how?
I'd like to second Franks request. Our company has an established internal parts database (mysql) from which I'd like to be able to use to stuff attributes with. I've looked at the raw schematic file format and it appears to be straight forward (except for auto placement on the schematic of the hidden text). Like gattrib, I see this database-attrib tool as a separate application. What functionality does libgeda possess toward this application that would compel me to use it? Some simple attrib parsing components? Thanks On Wed, 2008-10-22 at 17:01 +0100, Peter TB Brett wrote: On Wednesday 22 October 2008 16:36:47 Frank Miles wrote: While a geda-newbie, over the years I've developed a set of programs which use a (Postgresql-based) database to update and error check schematics originating in a DOS-based OrCAD. I would like to have similar capabilities in gschem/pcb. A key requirement is to be able to read and write component information (attributes) by external programs. ** Where/how can an external program read and/or write component attributes?? ** Your best bet is probably either: (1) Link against libgeda, or (2) Process the (pretty straightforward) file format yourself. Peter ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user -- Mike home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: PCB to IGES converstion?
On Fri, 2008-10-10 at 21:23 +0200, Bert Timmerman wrote: Cool beans! I've looked at the code (very briefly) and have a few questions. See below. Hi Mike, On Fri, 2008-10-10 at 09:21 -0500, Mike Crowe wrote: Hi all Another question for the group. Is anyone working on a tool or know how to import a pcb layout to an IGES file? I've made a start with a DXF exporter for pcb, not an IGES exporter :) since the DXF file format is well known. I've fooled around with DXF formats in the past, but didn't find it to be very stable as the there seemed to be several versions of DXF floating around. That being said, a partially built car is better than nothing at all :-) The sources can be found here: http://github.com/bert/pcb-dxf-hid/tree/master It's not in a very complete state, let's say halfway, it compiles and sometimes segfaults. It appears that this is a module for PCB. I was thinking of a separate application that reads the PCB file directly. What development advantage is there to having this application be a module for PCB? Currently I have no time to debug the code as I'm very busy with modifications to the house: extension, new kitchen, etc. I know how that goes. Seems to be my life as well. That will keep me busy until most of December I guess. Kind regards, Bert Timmerman. So how about it. Anyone have this tool half built? Thanks in advance ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: PCB to IGES converstion?
Hi all Another question for the group. Is anyone working on a tool or know how to import a pcb layout to an IGES file? Background I just did my second design with PCB. Works great! Kudos to you all! unfortunately for me, when we assembled the prototype, one of the components had a mechanical interference with the case. Grrr. With the new artwork we'd like to be able to import an IGES image of it into Solid Edge (a mechanical cad tool). Before I start down the path of writing my own tool, I want to be sure no one else has already started down this path. The minimum that I need it to do is: Parse the file for elements Look-up height information for elements from a separate file Convert the element description to the IGES format with the new height info Optionally take an outline layer and convert it to a board outline Somehow provide board thickness info So how about it. Anyone have this tool half built? Thanks in advance -- Mike home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: PCB script questions
Hello I am trying to automate my Gerber generation process through a Makefile (use the hammer that you know:-). I see that PCB as a command line option --script filename that could potentially be used to export the Gerber's and then exit. Something like this ... export gerber somefileprefix quit Problem is that I can't find any sort of script programming reference that would allow me to do this. Any direct help(providing the exact syntax) or indirect help (pointing me to a reference) would be greatly appreciated. Thanks -- Mike home of the USB-Accelerometer http://www.gcdataconcepts.com/xlr8r-1.html ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: PCB script questions
On Wed, 2008-09-24 at 12:26 -0400, DJ Delorie wrote: You can export directly from the command line: pcb -x gerber $*.pcb Wow! just what I was looking for! Thanks. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
