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Added FILTER_RANGE support to icepll

This commit is contained in:
Clifford Wolf 2016-05-15 12:54:04 +02:00
parent 37cc00c3df
commit 9ebed4d055
1 changed files with 11 additions and 0 deletions
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11
icepll/icepll.cc
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@ -142,6 +142,13 @@ int main(int argc, char **argv)
double f_pfd = f_pllin / (best_divr + 1);; double f_pfd = f_pllin / (best_divr + 1);;
double f_vco = f_pfd * (best_divf + 1); double f_vco = f_pfd * (best_divf + 1);
int filter_range =
f_pfd < 17 ? 1 :
f_pfd < 26 ? 2 :
f_pfd < 44 ? 3 :
f_pfd < 66 ? 4 :
f_pfd < 101 ? 5 : 6;
if (!simple_feedback) if (!simple_feedback)
f_vco *= exp2(best_divq); f_vco *= exp2(best_divq);
@ -170,5 +177,9 @@ int main(int argc, char **argv)
printf("\n"); printf("\n");
printf("FILTER_RANGE: %d (3'b%s)\n", filter_range, binstr(filter_range, 3));
printf("\n");
return 0; return 0;
} }