Stratix IV- Hspice Error

Hi,

I have an issue on the usage of Altera Stratix IV hspice model along with other 3rd part models like IDT or Pericom.

Below is the error description, I have from hspice output file, when I try to integrate the Altera spice model with IDT model.

**error** (../../s4gx_preliminary_model_v0p3/inc/4sgx_tt.inc:0) reference pch_l_a not found, or instance width or length does not fit into the wmax/wmin or lmax/lmin range. it was referenced in element main

the channel width= 8.599E-08 and length= 5.400E-08</SPAN>

IDT uses .option scale = 1u[/B][/B]

And Alter uses[/B][/B]

.option hier_scale=1 $ Hierarchical scale

.option scale=1 $ Final Scale = scale * s = 1.0 * 1u = 1um

And S=1U in the subcircuit of TX_TOP or RX_TOP

Here is what I tried, when I tried to integrate with IDT model

1. I changed scale as 1u and S parameter to 1

.option hier_scale=1 $ Hierarchical scale[/I][/I]

.option scale=1U $ Final Scale = scale * s = 1.0 * 1u = 1um[/I][/I]

And S=1 in the subcircuit of TX_TOP or RX_TOP[/I][/I]

With this option, I am getting the error as I said above

2. I commented the hier_scale option and used scale =1u and commented the S parameter in the subcircuit

*.option hier_scale=1 $ Hierarchical scale[/I][/I]

.option scale=1U $ Final Scale = scale * s = 1.0 * 1u = 1um[/I][/I]

*And S=1 in the subcircuit of TX_TOP or RX_TOP[/I][/I]

Here there is no error as such, when the altera is in receiver mode(RX_TOP), but I am getting the same error as shown above when altera is transmitting.

Again, the catch here is, even though there is no error when I use the receiver model of Rx with IDT transmitter model, I am seeing the data wavfoem only till RXIP_BUMP, i.e., only till the input of the Altera receiver, after that there is no waveform,other than microvolts of noise.

Is there any work around solution to integrate the models with other models and validate the Stratix IV option.