Subject: [IBIS-Users] [IBIS] for a question of s2ibis2, thanks in advance!!
From: Allen Chao (achao@synopsys.com)
Date: Tue Jun 10 2003 - 06:52:36 PDT
Hi,
First of all, any help will be greatly appreciated. I am a coop student here
and I am in charge of the conversion from Hspice to IBIS model.
I am confused about how to construct [pin mapping] and [pin] in a command
file .s2i. (I am using North Carolina State University's s2ibis2 utility for
automatic Spice model to IBIS Version 2.1 model conversion)
Our device has some switches (by indicating high or low) to control the
transfer speed. I am trying to model the output by grounding or vcc few
inputs. I've tried a lot of cases. Can anyone show me how to ground or vcc
an input?
THANKS IN ADVANCE!!!
Allen Chao
I also include the error log and what I put in the .s2i file in the bottom.
-------------------------------------------------------------------------
-Below is the error log from the pct8.out file (any information on this is
good too. ^^)
vouts2i tx_pd 0 dc 0
h$dps2i vdd33t_tx 0 dc 5.5
**error**: voltage source not found on above line
vgclh
h\i vss33t@.temp 27
**error** above line attempts to redefine h$dps2i
**error**: voltage source not found on above line
.options ingold=2
.dc vouts2i 5 10 0.1
.print dc i(vouts2i)
.end
>error ***difficulty in reading input
-------------------------------------------------------------------------
Here is what I put in the .s2i file:
[pin mapping]
1 DRV_GND NC
2 NC DRV_VDD
3 DRV_GND DRV_VDD
4 DRV_GND DRV_VDD
|5 NC NC
|6 NC DRV_VDD
|7 DRV_GND NC
8 NC NC
9 NC NC
10 NC NC
11 NC NC
12 NC NC
13 NC NC
|14 DRV_GND NC
|15
|16
17 NC NC
18 NC NC
19 NC NC
|20
|21 DRV_GND DRV_VDD
|22 DRV_GND DRV_VDD
|23 DRV_GND NC
|24 DRV_GND NC
[Pin]
1 VSS33T_TX gnd GND
2 VDD33T_TX vdd POWER
3 DP dp output_dp
-> 12 9
4 DM dm output_dm
-> 12 9
|5 IABSPN100U_TX iabs100 test
|6 HS_DRIVE_ENABLEN vdd POWER
|7 HS_DRIVE_ENABLE gnd GND
8 TX_PD pd_gnd input
9 FS_LS_OE ena input
10 FS_LS_DATAN in_2 input
11 FS_EDGE_SEL fs_vdd input
12 FS_LS_DATA in_1 input
13 TX_SE0 tx_gnd input
|14 HCSEF gnd GND
|15 HS_DATAN
|16 HS_DATA
17 VDRES[2] 2_gnd input
18 VDRES[1] 1_vdd input
19 VDRES[0] 0_gnd input
|20 DETECT_5V_ENN
|21 VDTX_TEST_OUT[0] vdtxto0 test
|22 VDTX_TEST_OUT[1] vdtxto1 test
|23 HS_CURRENT_SRC_EN gnd GND
|24 IABSPN25U_TX iabs25 test
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