delta sigma tim
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Hi,
I wonder if anyone who run the “Simulating SC filters with SpectreRF” example successfully can help me.
First I’m running spectre ver. 4.4.5.100.9 -- 20 Apr 2000. And I used the following command that is recommended by Cadence “Using AWD with standalone Spectre”: spectre +log spectre.out -f psfbin -r ./psf -E tah.ckt
I get the following warning: “Warning from spectre during circuit read-in. smpldNoise: `numberofpoints' is not a valid parameter for an instance of `pnoise'. Ignored.”
I also couldn’t figure out how to get `numberofpoints' option using the GUI either. Actually that is why I tried the standalone option.
Another problem I encountered with the example is with sh.va, I got the following error message:
“Error found by spectre during AHDL read-in. "sh.va", line 29: "n = ($abstime <<--? - tdelay + aperture) / period + 0.5;" "sh.va", line 29: Error: syntax error "sh.va", line 34: "n = ($abstime <<--? - tdelay) / period + 0.0;" "sh.va", line 34: Error: syntax error "sh.va", line 39: "if (($abstime <<--? > tstop - aperture) && ($abstime <= tstop)) " "sh.va", line 39: Error: syntax error "sh.va", line 51: "if (($abstime <<--? >= tstop - aperture) && ($abstime < tstop)) begin" "sh.va", line 51: Error: syntax error file: sh.va. Non-recoverable error: parser error: confused context stack. Exiting SpectreHDL compilation.”
thanks Hi,
I
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