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surreyian
Joined: 10 Feb 2006
Posts: 49
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 17 May 2006 6:10 scripts for cadence corner simulation |
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Hello, currently im doing corner simulation by maunal changing the temperature and corner parameters. I understand that i can use ocean scripts or other language to do. How do i go about writing the script and how do i run it later on.
appreciate your kindest help.
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elbadry
Joined: 06 May 2005
Posts: 363
Helped: 62
Location: Egypt
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17 May 2006 17:00 Re: scripts for cadence corner simulation |
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You actually do not need to write all the script. You can make Cadence enerate the script then modify it to include your own loops to sweep on the corners.
To generate the ocean script from cadence. In the Analog Design environment choose:
Session -> save script
Then go to the file, and place your model file inside the loop, changing the corner you need at each iteration.
To run the file, you have two options:
1. In icfb, type: load("file name")
2. open a terminal, type: ocean. run the same comman there.
Hope this helps
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pfd001
Joined: 23 Jul 2005
Posts: 397
Helped: 34
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18 May 2006 3:59 scripts for cadence corner simulation |
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| HI, elbadry, is it possible for you to post a example. thanks
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shadoweek
Joined: 30 Jun 2005
Posts: 62
Helped: 1
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18 May 2006 5:49 Re: scripts for cadence corner simulation |
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| pfd001 wrote: |
| HI, elbadry, is it possible for you to post a example. thanks |
i support this idea... can anybody, also, explain what is an ocean script cause i am a newbie with cadence...
many thanks...
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surreyian
Joined: 10 Feb 2006
Posts: 49
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18 May 2006 9:57 Re: scripts for cadence corner simulation |
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| elbadry wrote: |
You actually do not need to write all the script. You can make Cadence enerate the script then modify it to include your own loops to sweep on the corners.
To generate the ocean script from cadence. In the Analog Design environment choose:
Session -> save script
Then go to the file, and place your model file inside the loop, changing the corner you need at each iteration.
To run the file, you have two options:
1. In icfb, type: load("file name")
2. open a terminal, type: ocean. run the same comman there.
Hope this helps |
hello, thanks for the pointers.
but included corner ss into the script and load it through icfb, typing load "oceanScript .ocn". but it encountered some error. The error mgs says the it does not contain valid PSF results. giving names of some parameters that is not defined. i'm not sure what went wrong.
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elbadry
Joined: 06 May 2005
Posts: 363
Helped: 62
Location: Egypt
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18 May 2006 20:53 Re: scripts for cadence corner simulation |
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Before runig a script, you must have run a simulation of your circuit normally ( with ADE ). The error simply says that the rsults directory contains no results.
I'll try to send an example soon...
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elbadry
Joined: 06 May 2005
Posts: 363
Helped: 62
Location: Egypt
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21 May 2006 8:00 Re: scripts for cadence corner simulation |
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Here is a script that calculates the maximum and minimum DC bias current across process corners
| Code: |
;
ocnWaveformTool( 'wavescan )
simulator( 'spectre )
design("/space/elbadry/simulation/tb_ota_olp/spectre/schematic/netlist/netlist")
resultsDir( "/space/elbadry/simulation/tb_ota_olp/spectre/schematic" )
temp( 27.0 )
; PVT Corners' lists:
mos_sections = '( "ss" "sf" "tt" "fs" "ff" )
vddList = '( 1.1 1.2 1.3 )
tempList = '( -40 27 125 )
; Output File definition:
Out_File = "/home/elbadry/Desktop/dc_current"
n=outfile(Out_File "a")
; Variable initialization
I_List=list();
; analysis definition
analysis('dc ?saveOppoint t )
;Loop across corners
foreach( Model mos_sections
; Replaced 2;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
modelFile(
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/ResModel.scs" "res_t")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/ResModel.scs" "tt_disres")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfmos")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfmos33")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfmim")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfind")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfmvar")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfmvar_33")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfjvar")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfres_sa")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfres_rpo")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_rfres_hri")
list("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" Model)
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_33")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_na")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_lvt")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_hvt")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_na33")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_bip")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_bip_npn")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_dio")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_dio_dnw")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_dio_hvt")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_dio_na")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_dio_33")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_dio_lvt")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_dio_na33")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_res")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_mos_cap")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_mos_cap_33")
'("/home/cdsmgr/Linux/Design_Kits/tsmc/tsmc13/tsmc13rf_1P6M_12v_33v_UTM/tsmc13rf/../models/RF_12_33_FSG/T013CMSP002_1_1p1/spectre/rf013.scs" "tt_mim")
)
;end of REPLACED 2;;;;;;;;;;;;;;;;;;
fprintf(n "\nModel: %s\n" Model)
foreach( Supply vddList
desVar( "Vsupply" Supply)
fprintf(n "\nSupply = %3.2f\n" Supply)
fprintf(n "\n%20s %-7s\n" "Temp" "Total I")
foreach( SimTemperature tempList
temp( SimTemperature )
run()
x=-IDC("/V0/PLUS")
fprintf(n "%20n %-4.3e\n" SimTemperature x)
I_List=append1(I_List x)
) ;foreach
);foreach
fprintf(n "**********************************************************")
);foreach
I_List=sort(I_List 'lessp)
I_min = nthelem( 1 I_List )
I_max =car(last( I_List ))
newline( n )
newline( n )
fprintf( n "***************************************************************\n" )
fprintf( n "******************** Summary ********************\n" )
fprintf( n "***************************************************************\n" )
newline( n )
fprintf(n "\n\n Maximum DC current = %4.3e\n Minimum DC Current = %4.3e"
I_max I_min)
close(n)
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