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icepll: added -q option to suppress output to stdout

This commit is contained in:
Matthias 2017-02-01 16:20:43 +01:00
parent 31cc8a1ab9
commit 29ddae9bae
1 changed files with 26 additions and 16 deletions
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42
icepll/icepll.cc
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@ -46,6 +46,9 @@ void help(const char *cmd)
printf(" -S\n"); printf(" -S\n");
printf(" Disable SIMPLE feedback path mode\n"); printf(" Disable SIMPLE feedback path mode\n");
printf("\n"); printf("\n");
printf(" -q\n");
printf(" Do not print PLL settings to stdout\n");
printf("\n");
exit(1); exit(1);
} }
@ -54,9 +57,10 @@ int main(int argc, char **argv)
double f_pllin = 12; double f_pllin = 12;
double f_pllout = 60; double f_pllout = 60;
bool simple_feedback = true; bool simple_feedback = true;
bool quiet = false;
int opt; int opt;
while ((opt = getopt(argc, argv, "i:o:S")) != -1) while ((opt = getopt(argc, argv, "i:o:S:q")) != -1)
{ {
switch (opt) switch (opt)
{ {
@ -69,6 +73,9 @@ int main(int argc, char **argv)
case 'S': case 'S':
simple_feedback = false; simple_feedback = false;
break; break;
case 'q':
quiet = true;
break;
default: default:
help(argv[0]); help(argv[0]);
} }
@ -157,29 +164,32 @@ int main(int argc, char **argv)
exit(1); exit(1);
} }
printf("\n"); if (!quiet)
{
printf("\n");
printf("F_PLLIN: %8.3f MHz (given)\n", f_pllin); printf("F_PLLIN: %8.3f MHz (given)\n", f_pllin);
printf("F_PLLOUT: %8.3f MHz (requested)\n", f_pllout); printf("F_PLLOUT: %8.3f MHz (requested)\n", f_pllout);
printf("F_PLLOUT: %8.3f MHz (achieved)\n", best_fout); printf("F_PLLOUT: %8.3f MHz (achieved)\n", best_fout);
printf("\n"); printf("\n");
printf("FEEDBACK: %s\n", simple_feedback ? "SIMPLE" : "NON_SIMPLE"); printf("FEEDBACK: %s\n", simple_feedback ? "SIMPLE" : "NON_SIMPLE");
printf("F_PFD: %8.3f MHz\n", f_pfd); printf("F_PFD: %8.3f MHz\n", f_pfd);
printf("F_VCO: %8.3f MHz\n", f_vco); printf("F_VCO: %8.3f MHz\n", f_vco);
printf("\n"); printf("\n");
printf("DIVR: %2d (4'b%s)\n", best_divr, binstr(best_divr, 4)); printf("DIVR: %2d (4'b%s)\n", best_divr, binstr(best_divr, 4));
printf("DIVF: %2d (7'b%s)\n", best_divf, binstr(best_divf, 7)); printf("DIVF: %2d (7'b%s)\n", best_divf, binstr(best_divf, 7));
printf("DIVQ: %2d (3'b%s)\n", best_divq, binstr(best_divq, 3)); printf("DIVQ: %2d (3'b%s)\n", best_divq, binstr(best_divq, 3));
printf("\n"); printf("\n");
printf("FILTER_RANGE: %d (3'b%s)\n", filter_range, binstr(filter_range, 3)); printf("FILTER_RANGE: %d (3'b%s)\n", filter_range, binstr(filter_range, 3));
printf("\n"); printf("\n");
}
return 0; return 0;
} }