Re: gEDA-user: New mass attribute tool: gattrib_csv
On Sat, 2011-04-02 at 00:34 +0200, Kai-Martin Knaak wrote: Joshua wrote: I wrote a tool which exports and imports the properties from a project to and to a csv file. The format is simular to that of the bom2 format as it groups lines together which have similar data. This way I could use oocalc to mass edit the attributes. This is great! Yes. I always wondered, why geda tries to reinvent spread sheet wheels with gattrib. I think the gattrib effort is justified, when it can be integrated into gschem. I know -- different tools for different task. But for me creating a schematic is one task, we should have a graphical, and a spreadsheet view. I will try to realize something like that for my ruby gschem clone -- maybe in far future. I was indeed thinking of an attribute -- Speadsheet conversion -- for me the problem was, that schematics are not really flat, symbols have attributes and pins, and pins have again attributes. I still have to learn how that java program solves that problem. Best wishes, Stefan Salewski ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: US Distributor for Balloon Board
On 3/27/11 6:05 AM, Stephan Boettcher wrote: I am designing a lot of boards with an LPC2141 ARM7, Altera 3c25, USB client, RS232, SPI, uSD. No ram, no Linux, just the builtin flash and RAM of the ARM and FPGA, and 1MByte SPI flash. The frontend is fitted with a variable number of ADCs of various types. It is optimized for precision analog measurements. The FPGA and the ARM live on differnt ground planes, with LVDS-IO between, to isolate the noisy digital world (computer) from the frontend. This board is sandwiched between a power regulator board and a preamplifier board. The inputs to the preamps are usially quoted in pA or fC, that is just a few electrons. I don't think this is what you asked for, but, if that comes close to what you need, and are ready to do your board yourself, I will share my design to work from. Most work is in the software/firmware. That sounds like a very powerful platform for general metrology applications. I'd love to get my hands on one of those boards. If you decide to publish the info or sell any boards, please let me know! -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: Two Power Supplies in gschem
Hi geda-user@, I'm kinda new to gschem (in fact, first time learning a electronics cad software) and a little confused about the power pins issue. I read the geda-faq:gschem and found that it's a good practice to NOT hide the power pins. Is this related to the design of the symbol? Are there some (generic) attribute common to all symbols that makes the power pin visible? I'm trying to draw a circuit that uses 2 different power supplies, 12V and 5V. Are there any other good way to design this type of circuit? Any old topic in archive might be helpful too. Thank you in advance. -- Daniel Bolgheroni dan...@bolgh.eng.br dbolgher...@gmail.com ASCII ribbon campaign ( ) against HTML e-mailX / \ (and no top-post also, please) -BEGIN PGP PUBLIC KEY BLOCK- Version: GnuPG v2.0.17 (OpenBSD) mQENBE12k9sBCADUPbXg0856cP4mvqpWp5nJH3AZMDLmgZOZj9dIMs/XP7UjgNmk 15yFMvouD0zmvPYYUOsETvxWV9em5JcR7u0hkddvVOxxeyMz+nA+hwYJnRYnHqcG lgoC2qT0uFBP6TE0wFOVrCp2LwJdsvm7VrviSn5jujwyNLEcPLR0vkOsgv3ki9Hk cQMAikLLex/a3SfJ+vWQD3fXCAW6KaY9kRjHFLNYhY5bNfSR7n1zJM5miMBPJ4mT Cqw5vsoORsb9cLcelrdEppu8exLZdZ1Zj3egLOXbv139E48HvMp57kl6j0J6ILKn Lbw6PXlERiGjl/oofNkhwolF+LqfKtnHwED/ABEBAAG0J0RhbmllbCBCb2xnaGVy b25pIDxkYW5pZWxAYm9sZ2guZW5nLmJyPokBOAQTAQIAIgUCTXaT2wIbAwYLCQgH AwIGFQgCCQoLBBYCAwECHgECF4AACgkQrP6t3uVIorPQmQf8DAFwvXvfo87cpG9f Msrbe9qvXzY87/WpVY7c1Y+to+CyUccsTMDXaDCz9FKb/vC+TzMsZUuNyIPo9aol cziOMiGR+Lp+uoo/F80vaRCwkW/oZ0PJK2apfLDQzTNoFLeelns2YoJaFccYCew+ 9XbJoB2Wl0Wwwhr0u7iAgV8kOqjclmxFfGN8kQB14BQyrCBzfWoiVhxHZRuyUXm1 t/vSmOWrV1Lt7lrFIs3L3SomJcWbKyvkPimJc0vWugRMJ5VbDwm0Tbj8wts7FLNA fxOn5PZHSRrChFexttJDlQvy14AWFVGWBTJ9zvKhS3T/FHCRnec9v51NlW2wJWQ5 v2t91rkBDQRNdpPbAQgA28mqYxlV7DGk8TKYDkrCTifNzzPwV1G68FjigLGC76H+ wDOGfr6iXBad0Z0PDx36CKdhNMojAev5SDv7FQRTXKB5OCbcL5AQ1KuaZ4OsJEky rPYXtbf9MEAX5ZncR50jNZ1X6kzsvZyqs8/gGiwiNxhFNKfcjZAsV0I/zzbWBM7C ndgxURL12CiDKitwQUgE+61AGjbffJXx+oom2x1njaVGUMnkcOV0APC2FOcCre1D qjcZKxeDSRSg6GWIfoGOgLofiDLGa9xHH+8dUlCrNmn2DZqTx7d7et3GZe9rq9ZN Mioyeple946ooKgRKwkKa5FJpXeMo5Icg22rn5LPRQARAQABiQEfBBgBAgAJBQJN dpPbAhsMAAoJEKz+rd7lSKKzHssH/2R1LD3J53tp0qT0X9tMupRaJnTcQ4+L6SlN G3D6WcxXD0QM56y4WjD92kGOzAnHZ5gCoa4jo72EhTIClXnuM6oorC8pxij2Jg88 mhG+5xCNqXAVw1NLafuf+X4DqW2sAfCCjYyvqTYrrmaeL78sAu+4oqZlb6tQVv90 9HCSh5ovQUP4LoDT+7Tx2Dj0HSExNz9Xyb8IuhTj6q8JhEeAZWjl23McY0DbDkCD UuUno+8h/vItjut6Idbl0yZ6tgCnUokh5Ks8rnd3hgjVFNF/M1ilvTRulnhJrQXl 606lzufMLu8Xxv0NA+eXfcBHjp+iyMGEZNbeB6/8/MlsBgzxIaQ= =qt9b -END PGP PUBLIC KEY BLOCK- ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Two Power Supplies in gschem
Daniel B. wrote: I'm kinda new to gschem (in fact, first time learning a electronics cad software) and a little confused about the power pins issue. I read the geda-faq:gschem and found that it's a good practice to NOT hide the power pins. ack. Is this related to the design of the symbol? Are there some (generic) attribute common to all symbols that makes the power pin visible? No. There are no hidden pins of the symbol. The power net is directly associated with a pin of the footprint -- There are no graphical objects involved. I'm trying to draw a circuit that uses 2 different power supplies, 12V and 5V. Are there any other good way to design this type of circuit? Split the power symbols off into a separate symbol. That way, you can have both: Have a clean schematic, not obscured with power nets and have all power pins visible on the sheet. And of course you can connect all power pins to a different voltage. As an additional benefit, you can position the capacitors at the power pins. See my opamp symbols for an example: http://www.gedasymbols.org/user/kai_martin_knaak/symbols/analog/opamp.sym http://www.gedasymbols.org/user/kai_martin_knaak/symbols/analog/opamp_pwr.sym BTW, the symbols in the default library are quite sub standard. If you haven't yet, you may download the contents of the repository gedasymbols wholesale. The symbols of John Luciani are a great resource, too. ---)kaimartin(--- -- Kai-Martin Knaak Email: k...@familieknaak.de Öffentlicher PGP-Schlüssel: http://pool.sks-keyservers.net:11371/pks/lookup?search=0x6C0B9F53 ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Two Power Supplies in gschem
On Sat, 2011-04-02 at 19:02 -0300, Daniel B. wrote: Hi geda-user@, I'm kinda new to gschem (in fact, first time learning a electronics cad software) and a little confused about the power pins issue. I read the geda-faq:gschem and found that it's a good practice to NOT hide the power pins. Is this related to the design of the symbol? Are there some (generic) attribute common to all symbols that makes the power pin visible? I'm trying to draw a circuit that uses 2 different power supplies, 12V and 5V. Are there any other good way to design this type of circuit? Any old topic in archive might be helpful too. Thank you in advance. A difficult point for beginners -- we should have an entry in the FAQ for this. Short answer: Symbols can have invisible power pin, i.e some logic gates symbols have entries like net=GND:7 or net=+5V:14 or net=VCC:14 If you put multiple such symbols on your schematic these pins (pin 7 or 14) are connected for the netlist, and later on the PCB board. Today often multiple voltages are used, so hidden power pins can generate problems, use of something like VCC can be bad, because it may stand for 3.3V and 5V and may generates unwanted shorts. So it may be better to always use explicit visible power pins -- use power pin like other ordinary pins, connect pins with nets. You may use Power-symbols like GND to give names to these nets, or you may use the netname attribute to give names to nets. Nets with the same name become connected. There is no magic to switch between visible and invisible pins, the author of the symbols decides how he wants it. Things become even more complicated when we put the visible power pins to a separate symbol instance. You may find examples for all kinds of symbols at http://www.gedasymbols.org/ DJs and Wilsons tutorial may help http://www.delorie.com/pcb/docs/gs/gs.html http://geda.seul.org/wiki/geda:gsch2pcb_tutorial It is not easy for beginners, and my english is really bad today, sorry. I hope someone other can explain it in better words. Best regards, Stefan Salewski ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
Re: gEDA-user: Two Power Supplies in gschem
If you go into the attributes of a symbol, and tick show inherited, then you will see the nets the power/ground pins are associated to. You can either change these pin assigns by adding new nets, or change your net names. At least, that's how I've always done it. On 2 April 2011 23:02, Daniel B. [1]dan...@bolgh.eng.br wrote: Hi geda-user@, I'm kinda new to gschem (in fact, first time learning a electronics cad software) and a little confused about the power pins issue. I read the geda-faq:gschem and found that it's a good practice to NOT hide the power pins. Is this related to the design of the symbol? Are there some (generic) attribute common to all symbols that makes the power pin visible? I'm trying to draw a circuit that uses 2 different power supplies, 12V and 5V. Are there any other good way to design this type of circuit? Any old topic in archive might be helpful too. Thank you in advance. -- Daniel Bolgheroni [2]dan...@bolgh.eng.br [3]dbolgher...@gmail.com ASCII ribbon campaign ( ) against HTML e-mailX / \ (and no top-post also, please) -BEGIN PGP PUBLIC KEY BLOCK- Version: GnuPG v2.0.17 (OpenBSD) mQENBE12k9sBCADUPbXg0856cP4mvqpWp5nJH3AZMDLmgZOZj9dIMs/XP7UjgNmk 15yFMvouD0zmvPYYUOsETvxWV9em5JcR7u0hkddvVOxxeyMz+nA+hwYJnRYnHqcG lgoC2qT0uFBP6TE0wFOVrCp2LwJdsvm7VrviSn5jujwyNLEcPLR0vkOsgv3ki9Hk cQMAikLLex/a3SfJ+vWQD3fXCAW6KaY9kRjHFLNYhY5bNfSR7n1zJM5miMBPJ4mT Cqw5vsoORsb9cLcelrdEppu8exLZdZ1Zj3egLOXbv139E48HvMp57kl6j0J6ILKn Lbw6PXlERiGjl/oofNkhwolF+LqfKtnHwED/ABEBAAG0J0RhbmllbCBCb2xnaGVy b25pIDxkYW5pZWxAYm9sZ2guZW5nLmJyPokBOAQTAQIAIgUCTXaT2wIbAwYLCQgH AwIGFQgCCQoLBBYCAwECHgECF4AACgkQrP6t3uVIorPQmQf8DAFwvXvfo87cpG9f Msrbe9qvXzY87/WpVY7c1Y+to+CyUccsTMDXaDCz9FKb/vC+TzMsZUuNyIPo9aol cziOMiGR+Lp+uoo/F80vaRCwkW/oZ0PJK2apfLDQzTNoFLeelns2YoJaFccYCew+ 9XbJoB2Wl0Wwwhr0u7iAgV8kOqjclmxFfGN8kQB14BQyrCBzfWoiVhxHZRuyUXm1 t/vSmOWrV1Lt7lrFIs3L3SomJcWbKyvkPimJc0vWugRMJ5VbDwm0Tbj8wts7FLNA fxOn5PZHSRrChFexttJDlQvy14AWFVGWBTJ9zvKhS3T/FHCRnec9v51NlW2wJWQ5 v2t91rkBDQRNdpPbAQgA28mqYxlV7DGk8TKYDkrCTifNzzPwV1G68FjigLGC76H+ wDOGfr6iXBad0Z0PDx36CKdhNMojAev5SDv7FQRTXKB5OCbcL5AQ1KuaZ4OsJEky rPYXtbf9MEAX5ZncR50jNZ1X6kzsvZyqs8/gGiwiNxhFNKfcjZAsV0I/zzbWBM7C ndgxURL12CiDKitwQUgE+61AGjbffJXx+oom2x1njaVGUMnkcOV0APC2FOcCre1D qjcZKxeDSRSg6GWIfoGOgLofiDLGa9xHH+8dUlCrNmn2DZqTx7d7et3GZe9rq9ZN Mioyeple946ooKgRKwkKa5FJpXeMo5Icg22rn5LPRQARAQABiQEfBBgBAgAJBQJN dpPbAhsMAAoJEKz+rd7lSKKzHssH/2R1LD3J53tp0qT0X9tMupRaJnTcQ4+L6SlN G3D6WcxXD0QM56y4WjD92kGOzAnHZ5gCoa4jo72EhTIClXnuM6oorC8pxij2Jg88 mhG+5xCNqXAVw1NLafuf+X4DqW2sAfCCjYyvqTYrrmaeL78sAu+4oqZlb6tQVv90 9HCSh5ovQUP4LoDT+7Tx2Dj0HSExNz9Xyb8IuhTj6q8JhEeAZWjl23McY0DbDkCD UuUno+8h/vItjut6Idbl0yZ6tgCnUokh5Ks8rnd3hgjVFNF/M1ilvTRulnhJrQXl 606lzufMLu8Xxv0NA+eXfcBHjp+iyMGEZNbeB6/8/MlsBgzxIaQ= =qt9b -END PGP PUBLIC KEY BLOCK- ___ geda-user mailing list [4]geda-user@moria.seul.org [5]http://www.seul.org/cgi-bin/mailman/listinfo/geda-user References 1. mailto:dan...@bolgh.eng.br 2. mailto:dan...@bolgh.eng.br 3. mailto:dbolgher...@gmail.com 4. mailto:geda-user@moria.seul.org 5. 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: US Distributor for Balloon Board
Dave McGuire mcgu...@neurotica.com writes: On 3/27/11 6:05 AM, Stephan Boettcher wrote: I am designing a lot of boards with an LPC2141 ARM7, Altera 3c25, USB client, RS232, SPI, uSD. No ram, no Linux, just the builtin flash and RAM of the ARM and FPGA, and 1MByte SPI flash. The frontend is fitted with a variable number of ADCs of various types. It is optimized for precision analog measurements. The FPGA and the ARM live on differnt ground planes, with LVDS-IO between, to isolate the noisy digital world (computer) from the frontend. This board is sandwiched between a power regulator board and a preamplifier board. The inputs to the preamps are usially quoted in pA or fC, that is just a few electrons. I don't think this is what you asked for, but, if that comes close to what you need, and are ready to do your board yourself, I will share my design to work from. Most work is in the software/firmware. That sounds like a very powerful platform for general metrology applications. I'd love to get my hands on one of those boards. If you decide to publish the info or sell any boards, please let me know! Well, I design a new board for every problem, because each problem requires it's special frontend, like == 18 * AD7276, 3 MSPS, 12bit, each with a shaper AD8005 == 2 * AD9251, 4 channels, 80MSPS, 14 bit, with AD8138 preamps. == 9 * AD7690, 9 channels, 400 kSPS, 18 bit, with AD8131 preamps. == 1 * AD9649, and LVDS IO, to test variuos ASICS. == 0 * ADC, but an SRAM, to test/emulate interfaces with downstream systems. The backend, ARM, FPGA is always the same, as is the ARM firmware, and a good part of the FPGA code. So, no boards, but I may put the design online when I find the time to package it. -- Stephan ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
gEDA-user: anybody use ngspice with openmp?
I don't know how to set this up, does anybody have a guide? I have never used openmp before. ___ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
