Skip to content

F
FMC DEL 1ns 4cha
Commit dd94e5aa authored by Federico Vaga's avatar Federico Vaga
Browse files
Options

sw: set default pulse width when not set 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent 4b18c701
Hide whitespace changes
Inline Side-by-side
Showing with 18 additions and 1 deletion
software/tools/fmc-fdelay-pulse.c
View file @ dd94e5aa
...@@ -215,6 +215,18 @@ void parse_width(struct fdelay_pulse *p, char *s) ...@@ -215,6 +215,18 @@ void parse_width(struct fdelay_pulse *p, char *s)
parse_time(s, &t_width); parse_time(s, &t_width);
} }
static void width_set_duty_cycle_50(struct fdelay_time *period,
struct fdelay_time *width)
{
memset(width, 0, sizeof(struct fdelay_time));
width->utc = period->utc / 2;
width->coarse = period->coarse / 2;
width->frac = period->frac / 2;
if (period->utc & 0x1)
width->coarse += 62500000;
if (period->coarse & 0x1)
width->frac += 2048;
}
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
...@@ -224,7 +236,7 @@ int main(int argc, char **argv) ...@@ -224,7 +236,7 @@ int main(int argc, char **argv)
int count = 0, channel = -1; int count = 0, channel = -1;
int trigger_wait = 0, verbose = 0; int trigger_wait = 0, verbose = 0;
struct fdelay_pulse p; struct fdelay_pulse p;
int has_custom_width = 0;
/* Standard part of the file (repeated code) */ /* Standard part of the file (repeated code) */
if (tools_need_help(argc, argv)) if (tools_need_help(argc, argv))
...@@ -307,6 +319,7 @@ int main(int argc, char **argv) ...@@ -307,6 +319,7 @@ int main(int argc, char **argv)
break; break;
case 'w': case 'w':
parse_width(&p, optarg); parse_width(&p, optarg);
has_custom_width = 1;
break; break;
case 't': case 't':
trigger_wait = 1; trigger_wait = 1;
...@@ -331,6 +344,10 @@ int main(int argc, char **argv) ...@@ -331,6 +344,10 @@ int main(int argc, char **argv)
exit(1); exit(1);
} }
/* If no custom value, set duty-cyle 50% */
if (!has_custom_width)
width_set_duty_cycle_50(&p.loop, &t_width);
b = fdelay_open(dev); b = fdelay_open(dev);
if (!b) { if (!b) {
fprintf(stderr, "%s: fdelay_open(): %s\n", argv[0], fprintf(stderr, "%s: fdelay_open(): %s\n", argv[0],
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment