X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-TCPREMOTEIP: 207.224.51.38 X-Authenticated-UID: jpd AT noqsi DOT com From: John Doty Content-Type: multipart/alternative; boundary="Apple-Mail=_CD80FA50-5539-427E-BC70-8235E6A25597" Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: [geda-user] [chscem] slow start Date: Thu, 20 Jul 2017 14:27:26 -0600 References: <20170719141700 DOT a9a156f68d8968c53ce1e46a AT gmail DOT com>

<31B5BD5F-73B5-44F7-B1B2-19C01D7C9661 AT noqsi DOT com> <20170720204206 DOT 32b0c314a8628ee18c9330ed AT gmail DOT com> To: geda-user AT delorie DOT com In-Reply-To: <20170720204206.32b0c314a8628ee18c9330ed@gmail.com> Message-Id: <550324FE-0D97-43CB-9AE7-D1DE6369EA28@noqsi.com> X-Mailer: Apple Mail (2.3273) Reply-To: geda-user AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: geda-user AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk --Apple-Mail=_CD80FA50-5539-427E-BC70-8235E6A25597 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 > On Jul 20, 2017, at 12:42 PM, Nicklas Karlsson = (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] = wrote: >=20 >>> xschem: >>> VHDL / Verilog / Spice netlist, ready for simulation >>> Behavioral VHDL / Verilog code can be embedded as one of the = properties of the schematic block >>>=20 >>>=20 >>> These xschem abilities will be good goals to include in cschem. >>=20 >>=20 >> We already have these for SPICE in gEDA and Lepton if you use the = gnet-spice-noqsi back end (https://github.com/noqsi/gnet-spice-noqsi = ) for gnetlist. I believe = both Lepton and Roland=E2=80=99s gnetlist replacement now give the back = end writer enough support to do Verilog and VHDL right. So, we don=E2=80=99= t need a new tool, just a couple of new back ends. >=20 > Yes, I never had any problem to express any circuit in gschem. There = are a few things missing but not many. >=20 > Then it come to available libraries and backends the story is a little = bit different. Predefined attributes should ideally be part of the = backend. Online design rule check would be possible if backend is a = plugin. I heard something about documentation layer in pcb-rnd useful to = feedback data generated externally. You=E2=80=99re talking about personalities for gschem? Vladimir has put = in a lot of work to make this possible in Lepton. But note that it=E2=80=99= s tricky in practice. I have a project that exports to three different = layout programs and also to SPICE. The netlister only has to pay = attention to one at a time, but the schematics need attributes for all = three. >=20 >>=20 >> John Doty Noqsi Aerospace, Ltd. >> http://www.noqsi.com/ >> jpd AT noqsi DOT com >=20 John Doty Noqsi Aerospace, Ltd. http://www.noqsi.com/ jpd AT noqsi DOT com --Apple-Mail=_CD80FA50-5539-427E-BC70-8235E6A25597 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8

On Jul 20, 2017, at 12:42 PM, Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:

xschem:
VHDL / Verilog / Spice netlist, ready = for simulation
Behavioral VHDL / Verilog code can be = embedded as one of the properties of the schematic block

These xschem abilities will be good goals to = include in cschem.

We already have these for SPICE in gEDA and Lepton if you use = the gnet-spice-noqsi back end (https://github.com/noqsi/gnet-spice-noqsi <https://github.com/noqsi/gnet-spice-noqsi>) for = gnetlist. I believe both Lepton and Roland=E2=80=99s gnetlist = replacement now give the back end writer enough support to do Verilog = and VHDL right. So, we don=E2=80=99t need a new tool, just a couple of = new back ends.

Yes, I never = had any problem to express any circuit in gschem. There are a few things = missing but not many.

Then it come to = available libraries and backends the story is a little bit different. = Predefined attributes should ideally be part of the backend. Online = design rule check would be possible if backend is a plugin. I heard = something about documentation layer in pcb-rnd useful to feedback data = generated externally.

You=E2=80=99re talking about personalities for gschem? = Vladimir has put in a lot of work to make this possible in Lepton. But = note that it=E2=80=99s tricky in practice. I have a project that exports = to three different layout programs and also to SPICE. The netlister only = has to pay attention to one at a time, but the schematics need = attributes for all three.

John Doty = &n= bsp;Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com

John Doty Noqsi = Aerospace, Ltd.

http://www.noqsi.com/

jpd AT noqsi DOT com

= --Apple-Mail=_CD80FA50-5539-427E-BC70-8235E6A25597--