diff --git a/doc/xschem_man/backannotation1.svg b/doc/xschem_man/backannotation1.svg new file mode 100644 index 00000000..d6d4f970 --- /dev/null +++ b/doc/xschem_man/backannotation1.svg @@ -0,0 +1,441 @@ + + + +CMOS DIFFERENTIAL AMPLIFIER +EXAMPLE +0 +0 +0 +VCC +0 +0 +0 +0 +VCC +VCC +VCC +PLUS +MINUS +DIFFOUT +GN +0 +PLUS +0 +MINUS +G +cmos_example.sch +Stefan Schippers +2020-12-27 23:52:05 +SCHEM +5u/2u/1 +m1 +D +5u/2u/1 +m2 +D +VVCC +5 +5u/2u/1 +m3 +D +IBIAS +100u +10u/1u/1 +m4 +D +10u/1u/1 +m5 +D +5u/2u/1 +m6 +D +VPLUS +2.5 pwl 0 2.4 10n 2.4 10.1n 2.6 +V1 +2.5 +1 +2 +CL +2p +m=1 +sTIMULI + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/doc/xschem_man/backannotation10.svg b/doc/xschem_man/backannotation10.svg new file mode 100644 index 00000000..dce742d2 --- /dev/null +++ b/doc/xschem_man/backannotation10.svg @@ -0,0 +1,469 @@ + + + +CMOS DIFFERENTIAL AMPLIFIER +EXAMPLE +0 +0 +0 +VCC +0 +0 +0 +0 +VCC +VCC +VCC +PLUS +MINUS +DIFFOUT +GN +0 +PLUS +0 +MINUS +G +cmos_example.sch +Stefan Schippers +2020-12-28 02:00:13 +SCHEM +5u/2u/1 +m1 +D +5u/2u/1 +m2 +D +VVCC +5 +5u/2u/1 +m3 +D +IBIAS +100u +10u/1u/1 +m4 +D +10u/1u/1 +m5 +D +5u/2u/1 +m6 +D +VPLUS +2.5 pwl 0 2.4 10n 2.4 10.1n 2.6 +V1 +2.5 +1 +2 +CL +2p +m=1 +STIMULI +Backannotate + 3.321 +5.005e-05 +i(m4[id]) +View raw file +5.005e-05 +i(m5[id]) +0.0001001 +i(m1[id]) + 3.321 + 1.31 + 5 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 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/dev/null and b/doc/xschem_man/backannotation14.png differ diff --git a/doc/xschem_man/backannotation2.png b/doc/xschem_man/backannotation2.png new file mode 100644 index 00000000..f3658db3 Binary files /dev/null and b/doc/xschem_man/backannotation2.png differ diff --git a/doc/xschem_man/backannotation3.png b/doc/xschem_man/backannotation3.png new file mode 100644 index 00000000..7e65ccb1 Binary files /dev/null and b/doc/xschem_man/backannotation3.png differ diff --git a/doc/xschem_man/backannotation4.svg b/doc/xschem_man/backannotation4.svg new file mode 100644 index 00000000..c9db4e08 --- /dev/null +++ b/doc/xschem_man/backannotation4.svg @@ -0,0 +1,187 @@ + + + +VCC +DIFFOUT +5u/2u/1 +1 +CL + + + + + + + + + + + + + + + + + + + + + diff --git a/doc/xschem_man/backannotation5.svg b/doc/xschem_man/backannotation5.svg new file mode 100644 index 00000000..2191f667 --- /dev/null +++ b/doc/xschem_man/backannotation5.svg @@ -0,0 +1,495 @@ + + + +CMOS DIFFERENTIAL AMPLIFIER +EXAMPLE +0 +0 +0 +VCC +0 +0 +0 +0 +VCC +VCC +VCC +PLUS +MINUS +DIFFOUT +GN +0 +PLUS +0 +MINUS +G +cmos_example.sch +Stefan Schippers +2020-12-28 00:02:28 +SCHEM +5u/2u/1 +m1 +D +5u/2u/1 +m2 +D +VVCC +5 +5u/2u/1 +m3 +D +IBIAS +100u +10u/1u/1 +m4 +D +10u/1u/1 +m5 +D +5u/2u/1 +m6 +D +VPLUS +2.5 pwl 0 2.4 10n 2.4 10.1n 2.6 +V1 +2.5 +1 +2 +CL +2p +m=1 +STIMULI +Backannotate +5 +3.321 +3.321 +1.31 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/doc/xschem_man/backannotation6.svg b/doc/xschem_man/backannotation6.svg new file mode 100644 index 00000000..e60a6c4e --- /dev/null +++ b/doc/xschem_man/backannotation6.svg @@ -0,0 +1,318 @@ + + + +0 +0 +0 +0 +PLUS +MINUS +GN +5u/2u/1 +m1 +D +5u/2u/1 +m3 +D +IBIAS +100u +10u/1u/1 +m4 +D +10u/1u/1 +m5 +D +1 +2 +CL +2p +m=1 +1.31 +Vmeas +Vmeas1 +Vmeas2 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/doc/xschem_man/backannotation7.svg b/doc/xschem_man/backannotation7.svg new file mode 100644 index 00000000..52d4cfb2 --- /dev/null +++ b/doc/xschem_man/backannotation7.svg @@ -0,0 +1,516 @@ + + + +CMOS DIFFERENTIAL AMPLIFIER +EXAMPLE +0 +0 +0 +VCC +0 +0 +0 +0 +VCC +VCC +VCC +PLUS +MINUS +DIFFOUT +GN +0 +PLUS +0 +MINUS +G +cmos_example.sch +Stefan Schippers +2020-12-28 01:05:52 +SCHEM +5u/2u/1 +m1 +D +5u/2u/1 +m2 +D +VVCC +5 +5u/2u/1 +m3 +D +IBIAS +100u +10u/1u/1 +m4 +D +10u/1u/1 +m5 +D +5u/2u/1 +m6 +D +VPLUS +2.5 pwl 0 2.4 10n 2.4 10.1n 2.6 +V1 +2.5 +1 +2 +CL +2p +m=1 +STIMULI +Backannotate +5 +3.321 +3.321 +1.31 +5.0052e-05 +Vmeas +5.0052e-05 +Vmeas1 +1.0010e-04 +Vmeas2 + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/doc/xschem_man/backannotation8.png b/doc/xschem_man/backannotation8.png new file mode 100644 index 00000000..74c27864 Binary files /dev/null and b/doc/xschem_man/backannotation8.png differ diff --git a/doc/xschem_man/backannotation9.png b/doc/xschem_man/backannotation9.png new file mode 100644 index 00000000..1fe25e97 Binary files /dev/null and b/doc/xschem_man/backannotation9.png differ diff --git a/doc/xschem_man/tutorial_ngspice_backannotation.html b/doc/xschem_man/tutorial_ngspice_backannotation.html index 6a5b454c..e59b4cf1 100644 --- a/doc/xschem_man/tutorial_ngspice_backannotation.html +++ b/doc/xschem_man/tutorial_ngspice_backannotation.html @@ -19,11 +19,181 @@ p{padding: 15px 30px 10px;}

TUTORIAL: Backannotation of NGSPICE simulation operating
point data into an XSCHEM schematic

+ The objective of this tutorial is to show into the schematic the operating point data (voltages currents, + other electrical parameters) of a SPICE simulation done with the + Ngspice simulator. + This tutorial is based on the cmos_example.sch example schematic located in the examples/ + directory. Start Xschem from a terminal since we need to give some commands in this tutorial. +

+ + +

CONFIGURATION

+

+ Open your xschemrc file (usually ~/.xschem/xschemrc), go to the end of the file, + Ensure the following tcl file is appended to the list of scripts loaded on startup by Xschem: + 

+#### list of tcl files to preload.
+lappend tcl_files ${XSCHEM_SHAREDIR}/ngspice_backannotate.tcl
+
+ +

SETUP

+

+ Select the 'STIMULI' code block (click on it) and edit its attributes (press q or + Shift-q): +

+ 
+.temp 30
+** models are generally not free: you must download
+** SPICE models for active devices and put them into the below 
+** referenced file in netlist/simulation directory.
+.include "models_cmos_example.txt"
+.control
+ op 
+ save all 
+ write cmos_example.raw 
+.endc
+
+

+ The important parts are in red in above text. This ensures all variables are saved into the raw file. + These instructions are for an interactive ngspice run.
+ When done open the Simulation-> Configure simulators and tools dialog box and ensure the + Ngspice simulator is selected (not Ngspice batch). Also ensure the spice netlist mode is + selected (Options -> Spice netlist). +

+ + +

SIMULATION

+

+ If you now press the Netlist followed by the Simulate button simulation should complete + with no errors. +

+ +

+ You can close the simulator since we need only the cmos_example.raw file that is now saved + in the simulation directory (usually ~/.xschem/simulations/cmos_example.raw).
+ Now verify that xschem is able to read the raw file: issue this command in the xschem console:
+ ngspice::annotate +

+ 
+xschem [~] ngspice::annotate
+Raw file read ...
+xschem [~] 
+
+

+ If there are no errors we are ready and set.

- +

PUSH ANNOTATION METHOD

+

+ Start placing some probe elements into the schematic. + The first element is the devices/spice_probe.sym component. This must be attached to + some schematic wires to show the voltage value. +

+ +

+ Place some of these elements on various nets, issue the above mentioned ngspice::annotate + command and see the voltage values in the schematic. +

+ +

+ Another useful component is the devices/ammeter.sym one which allow to monitor branch currents. + Break some wires and insert this component as shown here: +

+ +

+ IMPORTANT: When inserting current probes the circuit topology changes (new nodes are created) so you need to + re-create the netlist and re-run the simulation +


+

+ Doing again the ngspice::annotate command after simulation will update the ammeters showing + the branch currents. +

+ +

+ These voltage and current values are inserted in the probe components as attributes and thus can be saved + to file. Remember that if you change the circuit the values shown in the probe elements are no longer valid, + you should update the values with a new simulation + annotate operation when done with the changes.

+ What i have described so far is the simplest annotation procedure based on a push method: a tcl script + reads the simulation raw file and 'pushes' voltage and current values into the probe components as instance + attributes. If you do an edit attribute on one of these elements you see the attribute 'pushed' into it by the + annotate script. The advantage of this method is that values pushed into probes can be saved to file and are + thus persistent. +

+ +

PULL ANNOTATION METHOD

+

+ There is another annotation procedure that is based on a pull method: the probe objects have tcl commands + embedded that fetch simulation data from a table that has been read by the annotate script. +

+

+ To ensure all currents are saved modify the STIMULI attributes as follows: +

+ 
+.temp 30
+** models are generally not free: you must download
+** SPICE models for active devices and put them into the below 
+** referenced file in netlist/simulation directory.
+.include "models_cmos_example.txt"
+.option savecurrents
+.save all
+.control
+op
+write cmos_example.raw
+.endc
+
+

+ Remove all previous probe elements and place some devices/ngspice_probe.sym components + and some devices/ngspice_get_value.sym components. + the ngspice_probe.sym is a simple voltage viewer and must be attached to a net. The ngspice_get_value.sym + displays a generic variable stored in the raw file. This symbol is usually placed next to the referenced + component, but does not need to be attached to any specific point or wire. + Edit its attributes and set its node attribute to an existing saved variable in the raw file. +

+ +

+ Run again the simulation and the ngspice::annotate command and values will be updated. +

+ +

+ You can add additional variables in the raw file , for example modifying the .save instruction:
+ .save all @m4[gm] @m5[gm] @m1[gm] +

+ +

+ Data annotated into the schematic using these components allows more simulation parameters to be viewed into + the schematic, not being restricted to currents and voltages. Since these components get data using a pull method + data is not persistent and not saved to file. After reloading the file just do a ngspice::annotate + to view data again. +

+ +

+ There is one last probe component, the devices/ngspice_get_expr.sym. This is the most complex one, and + thus also the most flexible. It allows to insert a generic tcl expression using spice simulated data to report + more complex data. In the example below this component is used to display the electrical power of transistor m3, + calculated as V(GN) * Id(m3). +

+ +

+ The example shown uses this component to display a (meaningless, but shows the usage) gm ratio of 2 transistors: +

+ +

+ The syntax is a bit clompex, considering the verbosity of TCL and the strange ngspice naming syntax, however + once a working one is created changing the expression is easy. +

+ +

+ To avoid the need of typing commands in the xschem console a launcher component devices/launcher.sym + can be placed with the tcl command for doing the annotation. Just do a Ctrl-Click on it to trigger + the annotation. +

+ +
+
+
+
diff --git a/src/globals.c b/src/globals.c index 914d7e1d..bdacc716 100644 --- a/src/globals.c +++ b/src/globals.c @@ -133,6 +133,7 @@ int rainbow_colors=0; int dis_uniq_names=0; /* if set allow instances with duplicate names */ int persistent_command=0; /* remember last command 20181022 */ int color_ps=-1; +int transparent_svg=-1; int only_probes=0; int netlist_show=0; int flat_netlist=0; diff --git a/src/scheduler.c b/src/scheduler.c index 913537fc..5b26caad 100644 --- a/src/scheduler.c +++ b/src/scheduler.c @@ -717,6 +717,12 @@ int xschem(ClientData clientdata, Tcl_Interp *interp, int argc, const char * arg my_snprintf(s, S(s), "%d",TEXTLAYER); Tcl_SetResult(interp, s,TCL_VOLATILE); } + else if(!strcmp(argv[2],"transparent_svg")) { + if( transparent_svg != 0 ) + Tcl_SetResult(interp, "1",TCL_STATIC); + else + Tcl_SetResult(interp, "0",TCL_STATIC); + } else if(!strcmp(argv[2],"ui_state")) { char s[30]; /* overflow safe 20161122 */ my_snprintf(s, S(s), "%d",xctx->ui_state); @@ -2221,6 +2227,9 @@ int xschem(ClientData clientdata, Tcl_Interp *interp, int argc, const char * arg else if(!strcmp(argv[2],"color_ps")) { color_ps=atoi(argv[3]); } + else if(!strcmp(argv[2],"transparent_svg")) { + transparent_svg=atoi(argv[3]); + } else if(!strcmp(argv[2],"only_probes")) { only_probes=atoi(argv[3]); } diff --git a/src/svgdraw.c b/src/svgdraw.c index a2a425cc..019ef9df 100644 --- a/src/svgdraw.c +++ b/src/svgdraw.c @@ -661,6 +661,10 @@ void svg_draw(void) fprintf(fd, " stroke-linecap:round;\n"); fprintf(fd, " stroke-linejoin:round;\n"); fprintf(fd, " stroke-width: %g;\n", svg_linew); + if(i == 0 && transparent_svg) { + fprintf(fd, " fill-opacity: 0;\n"); + fprintf(fd, " stroke-opacity: 0;\n"); + } fprintf(fd, "}\n"); } diff --git a/src/xinit.c b/src/xinit.c index 6692295f..cd71a6e8 100644 --- a/src/xinit.c +++ b/src/xinit.c @@ -1344,6 +1344,12 @@ int Tcl_AppInit(Tcl_Interp *inter) my_snprintf(tmp, S(tmp), "%d",color_ps); tclsetvar("color_ps",tmp); } + if(transparent_svg==-1) + transparent_svg=atoi(tclgetvar("transparent_svg")); + else { + my_snprintf(tmp, S(tmp), "%d",transparent_svg); + tclsetvar("transparent_svg",tmp); + } change_lw=atoi(tclgetvar("change_lw")); l_width=atoi(tclgetvar("line_width")); if(change_lw == 1) l_width = 0.0; diff --git a/src/xschem.h b/src/xschem.h index 85e3fc72..75f2e4da 100644 --- a/src/xschem.h +++ b/src/xschem.h @@ -744,6 +744,7 @@ extern char hiersep[20]; extern int quit; extern int show_erc; extern int color_ps; +extern int transparent_svg; extern int only_probes; extern int pending_fullzoom; extern int fullscreen; diff --git a/src/xschem.tcl b/src/xschem.tcl index 52f31180..84c3f03d 100644 --- a/src/xschem.tcl +++ b/src/xschem.tcl @@ -3460,6 +3460,7 @@ set_ne flat_netlist 0 set_ne netlist_type vhdl set_ne netlist_show 0 set_ne color_ps 0 +set_ne transparent_svg 0 set_ne only_probes 0 ; # 20110112 set_ne fullscreen 0 set_ne unzoom_nodrift 1 @@ -3741,6 +3742,10 @@ if { ( $::OS== "Windows" || [string length [lindex [array get env DISPLAY] 1] ] -command { if { $color_ps==1 } {xschem set color_ps 1} else { xschem set color_ps 0} } + .menubar.option.menu add checkbutton -label "Transparent SVG background" -variable transparent_svg \ + -command { + if { $transparent_svg==1 } {xschem set transparent_svg 1} else { xschem set transparent_svg 0} + } .menubar.option.menu add checkbutton -label "Debug mode" -variable menu_tcl_debug \ -command { if { $menu_tcl_debug==1 } {xschem debug 1} else { xschem debug 0} diff --git a/xschem_library/examples/cmos_example.sch b/xschem_library/examples/cmos_example.sch index 3f80073e..9a1f8e64 100644 --- a/xschem_library/examples/cmos_example.sch +++ b/xschem_library/examples/cmos_example.sch @@ -5,140 +5,118 @@ V {} S {} E {} T {CMOS DIFFERENTIAL AMPLIFIER -EXAMPLE} 810 -570 0 0 0.4 0.4 {} -N 30 -240 30 -210 {lab=VCC} -N 30 -240 60 -240 {lab=VCC} -N 240 -260 240 -210 {lab=GN} -N 240 -210 280 -210 {lab=GN} -N 280 -210 280 -180 {lab=GN} -N 280 -180 460 -180 {lab=GN} -N 500 -250 500 -210 {lab=#net1} -N 430 -280 450 -280 {lab=0} -N 550 -280 570 -280 {lab=0} -N 430 -250 570 -250 {lab=#net1} -N 370 -280 390 -280 {lab=PLUS} -N 610 -280 630 -280 {lab=MINUS} -N 570 -430 620 -430 {lab=VCC} -N 380 -430 430 -430 {lab=VCC} -N 470 -430 530 -430 {lab=G} -N 470 -430 470 -400 {lab=G} -N 430 -400 470 -400 {lab=G} -N 430 -400 430 -310 {lab=G} -N 570 -400 570 -310 {lab=DIFFOUT} -N 570 -500 570 -460 {lab=VCC} -N 430 -500 570 -500 {lab=VCC} -N 430 -500 430 -460 {lab=VCC} -N 500 -520 500 -500 {lab=VCC} -N 570 -360 830 -360 {lab=DIFFOUT} -N 30 -370 30 -340 {lab=PLUS} -N 30 -370 60 -370 {lab=PLUS} -N 30 -520 30 -490 {lab=MINUS} -N 30 -520 60 -520 {lab=MINUS} -N 500 -150 500 -120 {lab=0} -N 500 -150 520 -150 {lab=0} -N 520 -180 520 -150 {lab=0} -N 500 -180 520 -180 {lab=0} -N 240 -150 240 -120 {lab=0} -N 220 -150 240 -150 {lab=0} -N 220 -180 220 -150 {lab=0} -N 220 -180 240 -180 {lab=0} -C {lab_pin.sym} 750 -300 0 0 {name=p20 lab=0 net_name=true} -C {lab_pin.sym} 30 -150 0 0 {name=p17 lab=0 net_name=true} +EXAMPLE} 250 -650 0 0 0.4 0.4 {} +N 30 -310 30 -280 {lab=VCC} +N 30 -310 60 -310 {lab=VCC} +N 260 -240 260 -190 {lab=GN} +N 260 -190 300 -190 {lab=GN} +N 300 -190 300 -160 {lab=GN} +N 300 -160 530 -160 {lab=GN} +N 500 -290 520 -290 {lab=0} +N 670 -290 690 -290 {lab=0} +N 500 -260 690 -260 {lab=#net1} +N 440 -290 460 -290 {lab=PLUS} +N 730 -290 750 -290 {lab=MINUS} +N 690 -490 740 -490 {lab=VCC} +N 450 -490 500 -490 {lab=VCC} +N 540 -490 650 -490 {lab=G} +N 540 -490 540 -460 {lab=G} +N 500 -460 540 -460 {lab=G} +N 690 -560 690 -520 {lab=VCC} +N 500 -560 690 -560 {lab=VCC} +N 500 -560 500 -520 {lab=VCC} +N 570 -580 570 -560 {lab=VCC} +N 690 -420 830 -420 {lab=DIFFOUT} +N 30 -440 30 -410 {lab=PLUS} +N 30 -440 60 -440 {lab=PLUS} +N 30 -590 30 -560 {lab=MINUS} +N 30 -590 60 -590 {lab=MINUS} +N 570 -130 570 -100 {lab=0} +N 570 -130 590 -130 {lab=0} +N 590 -160 590 -130 {lab=0} +N 570 -160 590 -160 {lab=0} +N 260 -130 260 -100 {lab=0} +N 240 -130 260 -130 {lab=0} +N 240 -160 240 -130 {lab=0} +N 240 -160 260 -160 {lab=0} +N 690 -460 690 -380 { lab=DIFFOUT} +N 500 -460 500 -380 { lab=G} +N 570 -260 570 -250 { lab=#net1} +N 690 -380 690 -320 { lab=DIFFOUT} +N 500 -380 500 -320 { lab=G} +N 570 -250 570 -190 { lab=#net1} +C {lab_pin.sym} 750 -360 0 0 {name=p20 lab=0 net_name=true} +C {lab_pin.sym} 30 -220 0 0 {name=p17 lab=0 net_name=true} C {title.sym} 160 -30 0 0 {name=l1 author="Stefan Schippers" net_name=true} -C {nmos4.sym} 480 -180 0 0 {name=m1 model=cmosn w=5u l=2u m=1 net_name=true} -C {pmos4.sym} 550 -430 0 0 {name=m2 model=cmosp w=5u l=2u m=1 net_name=true} -C {vsource.sym} 30 -180 0 0 {name=VVCC value=5 net_name=true} -C {lab_pin.sym} 500 -120 0 0 {name=p1 lab=0 net_name=true} -C {lab_pin.sym} 60 -240 0 1 {name=p2 lab=VCC net_name=true} -C {nmos4.sym} 260 -180 0 1 {name=m3 model=cmosn w=5u l=2u m=1 net_name=true} -C {lab_pin.sym} 240 -120 0 0 {name=p3 lab=0 net_name=true} -C {isource.sym} 240 -290 0 0 {name=IBIAS value=100u net_name=true} -C {lab_pin.sym} 240 -320 0 0 {name=p4 lab=0 net_name=true} -C {nmos4.sym} 410 -280 0 0 {name=m4 model=cmosn w=10u l=1u m=1 net_name=true} -C {lab_pin.sym} 450 -280 0 1 {name=p5 lab=0 net_name=true} -C {nmos4.sym} 590 -280 0 1 {name=m5 model=cmosn w=10u l=1u m=1 net_name=true} -C {lab_pin.sym} 550 -280 0 0 {name=p0 lab=0 net_name=true} -C {lab_pin.sym} 620 -430 0 1 {name=p6 lab=VCC net_name=true} -C {pmos4.sym} 450 -430 0 1 {name=m6 model=cmosp w=5u l=2u m=1 net_name=true} -C {lab_pin.sym} 380 -430 0 0 {name=p7 lab=VCC net_name=true} -C {lab_pin.sym} 500 -520 0 0 {name=p8 lab=VCC net_name=true} -C {lab_pin.sym} 370 -280 0 0 {name=p9 lab=PLUS net_name=true} -C {lab_pin.sym} 630 -280 0 1 {name=p10 lab=MINUS net_name=true} -C {lab_pin.sym} 830 -360 0 1 {name=p11 lab=DIFFOUT net_name=true} -C {lab_pin.sym} 240 -230 0 0 {name=p13 lab=GN net_name=true} -C {lab_pin.sym} 30 -280 0 0 {name=p14 lab=0 net_name=true} -C {vsource.sym} 30 -310 0 0 {name=VPLUS value="2.5 pwl 0 2.4 10n 2.4 10.1n 2.6" net_name=true} -C {lab_pin.sym} 60 -370 0 1 {name=p15 lab=PLUS net_name=true} -C {lab_pin.sym} 30 -430 0 0 {name=p16 lab=0 net_name=true} -C {vsource.sym} 30 -460 0 0 {name=V1 value=2.5 net_name=true} -C {lab_pin.sym} 60 -520 0 1 {name=p18 lab=MINUS net_name=true} -C {capa.sym} 750 -330 0 0 {name=CL +C {nmos4.sym} 550 -160 0 0 {name=m1 model=cmosn w=5u l=2u m=1 net_name=true} +C {pmos4.sym} 670 -490 0 0 {name=m2 model=cmosp w=5u l=2u m=1 net_name=true} +C {vsource.sym} 30 -250 0 0 {name=VVCC value=5 net_name=true} +C {lab_pin.sym} 570 -100 0 0 {name=p1 lab=0 net_name=true} +C {lab_pin.sym} 60 -310 0 1 {name=p2 lab=VCC net_name=true} +C {nmos4.sym} 280 -160 0 1 {name=m3 model=cmosn w=5u l=2u m=1 net_name=true} +C {lab_pin.sym} 260 -100 0 0 {name=p3 lab=0 net_name=true} +C {isource.sym} 260 -270 0 0 {name=IBIAS value=100u net_name=true} +C {lab_pin.sym} 260 -300 0 0 {name=p4 lab=0 net_name=true} +C {nmos4.sym} 480 -290 0 0 {name=m4 model=cmosn w=10u l=1u m=1 net_name=true} +C {lab_pin.sym} 520 -290 0 1 {name=p5 lab=0 net_name=true} +C {nmos4.sym} 710 -290 0 1 {name=m5 model=cmosn w=10u l=1u m=1 net_name=true} +C {lab_pin.sym} 670 -290 0 0 {name=p0 lab=0 net_name=true} +C {lab_pin.sym} 740 -490 0 1 {name=p6 lab=VCC net_name=true} +C {pmos4.sym} 520 -490 0 1 {name=m6 model=cmosp w=5u l=2u m=1 net_name=true} +C {lab_pin.sym} 450 -490 0 0 {name=p7 lab=VCC net_name=true} +C {lab_pin.sym} 570 -580 0 0 {name=p8 lab=VCC net_name=true} +C {lab_pin.sym} 440 -290 0 0 {name=p9 lab=PLUS net_name=true} +C {lab_pin.sym} 750 -290 0 1 {name=p10 lab=MINUS net_name=true} +C {lab_pin.sym} 830 -420 0 1 {name=p11 lab=DIFFOUT net_name=true} +C {lab_pin.sym} 260 -210 0 0 {name=p13 lab=GN net_name=true} +C {lab_pin.sym} 30 -350 0 0 {name=p14 lab=0 net_name=true} +C {vsource.sym} 30 -380 0 0 {name=VPLUS value="2.5 pwl 0 2.4 10n 2.4 10.1n 2.6" net_name=true} +C {lab_pin.sym} 60 -440 0 1 {name=p15 lab=PLUS net_name=true} +C {lab_pin.sym} 30 -500 0 0 {name=p16 lab=0 net_name=true} +C {vsource.sym} 30 -530 0 0 {name=V1 value=2.5 net_name=true} +C {lab_pin.sym} 60 -590 0 1 {name=p18 lab=MINUS net_name=true} +C {capa.sym} 750 -390 0 0 {name=CL m=1 value=2p footprint=1206 device="ceramic capacitor" net_name=true} -C {code.sym} 870 -190 0 0 {name=STIMULI +C {code.sym} 900 -190 0 0 {name=STIMULI only_toplevel=true -value=" -** ngspice -.temp 30 - -** xyce -* .step temp list 30 - -** ngspice -* .save all - +value=".temp 30 ** models are generally not free: you must download -** SPICE models for active devices and put them into the below +** SPICE models for active devices and put them into the below ** referenced file in netlist/simulation directory. -.option savecurrents .include \\"models_cmos_example.txt\\" +.option savecurrents +.save all @m4[gm] @m5[gm] @m1[gm] .control -let cap = 2e-12 -set filetype=binary -while cap <= 20e-12 -alter CL cap -tran 0.8n 2000n +op write cmos_example.raw -set appendwrite -let cap = cap + 2e-12 -end -* op -write cmos_example.raw -plot all.diffout .endc -** ngspice -* .save all - -** xyce, not needed if -r given om cmdline -* .print tran format=raw v(diffout) v(plus) v(minus) " net_name=true} -C {ngspice_probe.sym} 430 -350 0 0 {name=r1} -C {ngspice_probe.sym} 480 -430 0 0 {name=r2} -C {ngspice_probe.sym} 550 -500 0 0 {name=r3} -C {ngspice_probe.sym} 620 -360 0 0 {name=r4} -C {ngspice_probe.sym} 330 -180 0 0 {name=r5} -C {ngspice_probe.sym} 30 -370 0 0 {name=r6} -C {ngspice_probe.sym} 30 -240 0 0 {name=r7} -C {ngspice_probe.sym} 30 -520 0 0 {name=r8} -C {ngspice_probe.sym} 500 -210 0 0 {name=r9} -C {ngspice_get_value.sym} 410 -440 0 1 {name=r11 node=i(@m6[id])} -C {ngspice_get_expr.sym} 590 -450 0 0 {name=r18 -node="[ngspice::get_current \{m2[id]\}]" -descr = Id - } -C {lab_pin.sym} 430 -370 0 0 {name=p12 lab=G net_name=true} -C {ngspice_get_expr.sym} 550 -450 0 1 {name=r10 -node="[format %.4g [expr [ngspice::get_voltage vcc] - [ngspice::get_voltage g]]]" -descr = Vsg - } -C {ngspice_get_expr.sym} 530 -170 0 0 {name=r14 -node="[ngspice::get_current \{m1[id]\}]" -descr = Id - } -C {ngspice_get_expr.sym} 210 -170 0 1 {name=r12 -node="[ngspice::get_current \{m3[id]\}]" -descr = Id - } +C {lab_pin.sym} 500 -430 0 0 {name=p12 lab=G net_name=true} +C {launcher.sym} 700 -60 0 0 {name=h1 +descr=Backannotate +tclcommand="ngspice::annotate"} +C {ngspice_probe.sym} 700 -420 0 0 {name=r3} +C {ngspice_get_value.sym} 510 -320 0 0 {name=r2 node=i(@m4[id])} +C {launcher.sym} 700 -110 0 0 {name=h2 +descr="View raw file" +tclcommand="textwindow $netlist_dir/cmos_example.raw"} +C {ngspice_get_value.sym} 680 -320 0 1 {name=r1 node=i(@m5[id])} +C {ngspice_get_value.sym} 550 -190 0 1 {name=r4 node=i(@m1[id])} +C {ngspice_probe.sym} 500 -400 0 0 {name=r5} +C {ngspice_probe.sym} 350 -160 0 0 {name=r6} +C {ngspice_probe.sym} 630 -560 0 0 {name=r7} +C {ngspice_get_value.sym} 720 -310 0 0 {name=r8 node=@m5[gm]} +C {ngspice_get_value.sym} 470 -310 0 1 {name=r9 node=@m4[gm]} +C {ngspice_get_value.sym} 580 -190 0 0 {name=r10 node=@m1[gm]} +C {ngspice_get_expr.sym} 210 -140 0 1 {name=r11 +node="[format %.4g [expr ([ngspice::get_voltage GN]) * [ngspice::get_current \{m3[id]\}]]] W" +descr = power +} +C {ngspice_get_expr.sym} 650 -160 0 0 {name=r12 +node="[expr [ngspice::get_node \{@m5[gm]\}] / [ngspice::get_node \{@m1[gm]\}]]" +descr = "gm ratio m5/m1" +}