** sch_path: /home/darunix/GitSandboxes/VCO/vco/xschem/vco_with_fdivs_tb.sch
**.subckt vco_with_fdivs_tb vctrl out_div128_buf pad_out_a out_div256_buf pad_out_b
*.iopin vctrl
*.iopin out_div128_buf
*.iopin pad_out_a
*.iopin out_div256_buf
*.iopin pad_out_b


*POST-LAYOUT DUT:
x1 vctrl out_div128_buf net1 net2 vsel0 vsel1 vsel2 vsel3 out_div256_buf vco_with_fdivs

*This is the SCH DUT:
*x1 net1 vctrl vsel0 vsel1 vsel2 vsel3 net2 out_div128_buf out_div256_buf vco_with_fdivs


V2 vdd GND 1.8
Vmeas_current_vdd vdd net1 0
Vmeas_current_gnd net2 GND 0
xbuf1a out_div128_buf GND GND vdd vdd buf1a_out sky130_fd_sc_hd__clkbuf_1
xbuf2a buf1a_out GND GND vdd vdd buf2a_out sky130_fd_sc_hd__clkbuf_2
xbuf4a buf2a_out GND GND vdd vdd buf4a_out sky130_fd_sc_hd__clkbuf_4
xbuf8a buf4a_out GND GND vdd vdd buf8a_out sky130_fd_sc_hd__clkbuf_8
xbuf16a buf8a_out GND GND vdd vdd pad_out_a sky130_fd_sc_hd__clkbuf_16
Vsel0 vsel0 GND {p_sel0}
Vsel1 vsel1 GND {p_sel1}
Vsel2 vsel2 GND {p_sel2}
Vsel3 vsel3 GND {p_sel3}
xbuf1b out_div256_buf GND GND vdd vdd buf1b_out sky130_fd_sc_hd__clkbuf_1
xbuf2b buf1b_out GND GND vdd vdd buf2b_out sky130_fd_sc_hd__clkbuf_2
xbuf4b buf2b_out GND GND vdd vdd buf4b_out sky130_fd_sc_hd__clkbuf_4
xbuf8b buf4b_out GND GND vdd vdd buf8b_out sky130_fd_sc_hd__clkbuf_8
xbuf16b buf8b_out GND GND vdd vdd pad_out_b sky130_fd_sc_hd__clkbuf_16
**** begin user architecture code

.lib /usr/local/share/pdk/sky130A/libs.tech/ngspice/sky130.lib.spice tt
.include /usr/local/share/pdk/sky130A/libs.ref/sky130_fd_sc_hd/spice/sky130_fd_sc_hd.spice


*V1 vctrl GND 0.9
V1 vctrl GND pwl(0, 0, 1n, 0, 1.1n, 0.9, 2n, 0.9, 2.1n, {vcontrol_par})

*.options savecurrents

*Trying to get the syntax right for probing M26 and M7 current:
*Current probes:
  *DP9:
  *.probe tran all m.x1.out
  *.probe tran all @m.x1.xm26.msky130_fd_pr__nfet_01v8[id]
  *.save tran all @m.x1.xm26.msky130_fd_pr__nfet_01v8[id]
  *.probe tran all @m.x1.xm16a.msky130_fd_pr__nfet_01v8[id]
  *.save tran all @m.x1.xm16a.msky130_fd_pr__nfet_01v8[id]


.control


let do_vctrl_sweep = 1
*let do_dimensions_sweep = 0
*let do_2dimensions_sweep = 0
*let do_paracap_sweep = 0


.param vcontrol_par = 0.9
*.param paracap = 2.93f

*---------
*VCO current mirror select controls:
.param p_sel0 = 1.8
.param p_sel1 = 1.8
.param p_sel2 = 1.8
.param p_sel3 = 1.8
*---------


*This is to parameterize transient step/stop/start times
*using variables:
set t_start = 0
set t_step = 10p
let expected_frequency_vec = 1G
let nperiods_vec = 200
let t_stop_vec = nperiods_vec / expected_frequency_vec
set t_stop = $&t_stop_vec

*-----------------------
*SEE IF THIS DOESN'T BREAK IT:
*Trying to sync the params with the variables:
*Just for the measure statements:
.param t_start_par = 0
.param t_step_par = 10p
.param t_stop_par = 100n
alterparam t_start_par = $t_start
alterparam t_step_par = $t_step
alterparam t_stop_par = $t_stop
reset
*-----------------------


if do_vctrl_sweep = 1
  *-------- WHILE LOOP FOR VCTRL SWEEP-----------------
  let start_vctrl = 0.9
  let stop_vctrl = 1.81
  let increment = 0.2
  let vctrl_next = start_vctrl

  let debug_1 = 1234
  let debug_2 = 5678

  let iteration = 1

  while vctrl_next le stop_vctrl

    *alter V1 dc = vctrl_next
    set vctrl_next_var = $&vctrl_next
    alterparam vcontrol_par = $vctrl_next_var
    reset


    *This is using the (set) variables:
    tran $t_step $t_stop $t_start


    let vctrl_next = vctrl_next + increment
    let iteration = iteration + 1


    set appendwrite true
    write vco_with_fdivs_POST_LAYOUT_tb_WITH_APPENDWRITE.raw all


  end
*-------- END WHILE LOOP FOR VCTRL SWEEP-----------------
end $end the if do_vctrl_sweep = 1


.endc


*THESE WORK:
*.meas tran Tvco_OUTSIDE_WHILE TRIG v(m.x1.out) VAL=0.5*1.8 RISE=50 TARG v(m.x1.out) VAL=0.5*1.8 RISE=51
*.meas tran Tvco_OUTSIDE_WHILE TRIG v(x1.x3-stage_cs-vco_dp9.out) VAL=0.5*1.8 RISE=50 TARG v(x1.x3-stage_cs-vco_dp9.out) VAL=0.5*1.8 RISE=51
.meas tran Tvco_OUTSIDE_WHILE TRIG v(x1.out) VAL=0.5*1.8 RISE=50 TARG v(x1.out) VAL=0.5*1.8 RISE=51
.meas tran fvco_OUTSIDE_WHILE PARAM='1/Tvco_OUTSIDE_WHILE'
.meas tran Tdiv128_OUTSIDE_WHILE TRIG v(out_div128_buf) VAL=0.5*1.8 RISE=1 TARG v(out_div128_buf) VAL=0.5*1.8 RISE=2
.meas tran fdiv128_OUTSIDE_WHILE PARAM='1/Tdiv128_OUTSIDE_WHILE'
.meas tran Supply_current_rms_OUTSIDE_WHILE RMS i(vmeas_current_vdd) FROM=10e-9 TO=40e-9
.meas tran Ground_current_rms_OUTSIDE_WHILE RMS i(vmeas_current_gnd) FROM=10e-9 TO=40e-9
.meas tran vctrl_avg_OUTSIDE_WHILE AVG v(vctrl) FROM=10e-9 TO=20e-9
.meas tran vhigh_OUTSIDE_WHILE MAX v(out_div128_buf) FROM=10e-9 TO=20e-9
.meas tran vlow_OUTSIDE_WHILE MIN v(out_div128_buf) FROM=10e-9 TO=20e-9
.meas tran peak_to_peak_OUTSIDE_WHILE PARAM='vhigh_OUTSIDE_WHILE-vlow_OUTSIDE_WHILE'

.meas tran supply_current_rms RMS i(vmeas_current_vdd) FROM='t_start_par' TO='t_stop_par'

*IF NORMAL circuit: (couldn't wrap this inside an if)
  *.meas tran m26_current_rms RMS @m.x1.xm26.msky130_fd_pr__nfet_01v8[id] FROM='t_stop_par/2' TO='t_stop_par'
  *.meas tran m7_current_rms RMS @m.x1.xm7.msky130_fd_pr__nfet_01v8[id] FROM='t_stop_par/2' TO='t_stop_par'
*IF LVT circuit: (couldn't wrap this inside an if)
  *.meas tran m26_lvt_current_rms RMS @m.x1.xm26.msky130_fd_pr__nfet_01v8_lvt[id] FROM='t_stop_par/2' TO='t_stop_par'
  *.meas tran m7_lvt_current_rms RMS @m.x1.xm7.msky130_fd_pr__nfet_01v8_lvt[id] FROM='t_stop_par/2' TO='t_stop_par'


**** end user architecture code
**.ends

* expanding   symbol:  vco_with_fdivs.sym # of pins=9


*------------------------------------------------------------------
*EXTRACTED NETLIST FOR VCO_WITH_FDIVS POST-LAYOUT 0
*.include /home/darunix/GitSandboxes/VCO/vco/mag/3-stage_cs-vco_dp9/vco_with_fdivs.spice


*This is the netlist HACKED where I have made the Fdiv Inverters 2x Wider, to try to fix the Fdiv issue
*.include /home/darunix/GitSandboxes/VCO/vco/mag/3-stage_cs-vco_dp9/vco_with_fdivs_HACK_INVERTER_WIDTHS.spice

*This is last try, layout I tried with slightly wider Pmos on TGATEs to see if making them
*less resistive would help a bit (even though they will add more cap)
.include /home/darunix/GitSandboxes/VCO/vco/mag/3-stage_cs-vco_dp9/vco_with_fdivs_lasttry.spice


*------------------------------------------------------------------


.GLOBAL GND
.end