Hi all,
Hi
I get this error message when I run Monte Carlo simulation (in SPECTRE) for a resistive memory bit cell:
Warning from spectre during transient analysis `mtj_mc_tran1', during Monte Carlo analysis `mtj_mc'.
WARNING (SPECTRE-16002): Monte Carlo iteration 5 terminated prematurely because of the following error(s):
Error found by spectre during transient analysis `mtj_mc_tran1', during Monte Carlo analysis `mtj_mc'.
ERROR (SPECTRE-8003): mtj_mc_tran1: Error evaluating ocean expression `v_node1=v("node1")'.Here, is the code as such:
Code:// cell and access transistor
Xmtj (node1 node2) stt_mram_singleMgo Rp=R_p Rap=R_ap //cell
xm0 (BL WL node1 0) nchsvt_mac l=28n nf=2 nfin=1 tfin=7n //Finfet
// Wire Parasitics
rsub (sub 0) resistor r=0.0000001
csub (sub 0) capacitor c=0.1fF
rbl (BL 0) resistor r=0.0001
cbl (BL 0) capacitor c=1fF
rwl (WL 0) resistor r=0.0001
cwl (WL 0) capacitor c=1fF
rmtj_SL (node2 SL) resistor r=0.0001
cmtj_SL (node2 SL) capacitor c=1fF
//ends MRAM_CELL
//////////////////////////////////////////////////////////////////////////
// Sources
Vbl_1 (BL 0) vsource type=pwl wave=[0 1 10n -1 20n 1 30n -1 40n 1 50n -1 60n 1 70n -1]
Vwl_1 (WL 0) vsource type=pwl wave=[0 0 10n 1.2 20n 1.2 30n 1.2 40n 1.2 50n 1.2 60n 0 70n 0]
// monte carlo analysis
mtj_mc montecarlo variations=process numruns=5 saveprocessparams=yes processscalarfile="./mtj_montecarlo.dat"
{
dcop1 dc // a "child" analysis
tran1 tran start=0 stop=70n// another "child" analysis
//export //calculations are sent to the scalardata file
export v_node1=oceanEval("v(\"node1\")")
}
I'm pretty sure it' because I'm bad at circuit design rules and there is a silly error somewhere.
Thanks in advance.
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Spectre Monte Carlo Simulation export error (Read 1942 times)