Affirma Spectre DC Device Matching Analysis Tutorial - Cadence ...

}
Affirma Spectre DC Device Matching Analysis Tutorial
tmp = 1.0/(w*l);
alpha[0][0] += (tmp*tmp);
alpha[0][1] += (tmp*tmp)/l;
alpha[0][2] += tmp;
alpha[1][0] += (tmp*tmp)/l;
alpha[1][1] += (tmp*tmp)/(l*l);
alpha[1][2] += (tmp/l);
alpha[2][0] += tmp;
alpha[2][1] += tmp/l;
alpha[2][2] += 1.0;
/* convert to fortran array, since we will be calling fortran solvers */
for (i = 0; i < n; i++) {
for (j = 0; j < n; j++) {
F77CONV( farray, i, j, lda ) = alpha[i][j];
}
}
/* solve the matrix to obtain the three fitted model parameters */
dgeco_( farray, &n, &lda, ipvt, &rcond, work);
t = 1.0 + rcond;
if (t == 1.0) {
printf("singluar matrix of alpha encountered rcond = %g\n",rcond);
}
dgesl_( farray, &n, &lda, ipvt, rhs, &zero);
Release Date Back Page 25
Close
25