"It works for me"
--- /home/ldoolitt/cvs/usrp/host/apps/test_usrp_standard_rx.cc 2005-09-08
08:34:57.000000000 -0700
+++ test_usrp_standard_rx.cc 2005-09-09 09:23:35.000000000 -0700
@@ -38,7 +38,7 @@
char *prog_name;
-static bool test_input (usrp_standard_rx *urx, bool forever_p, FILE *fp);
+static bool test_input (usrp_standard_rx *urx, int max_bytes, FILE *fp);
static void
set_progname (char *path)
@@ -55,6 +55,7 @@
{
fprintf (stderr, "usage: %s [-f] [-v] [-l] [-c] [-D <decim>] [-F freq] [-o
output_file]\n", prog_name);
fprintf (stderr, " [-f] loop forever\n");
+ fprintf (stderr, " [-M] how many Megabytes to transfer (default 128)\n");
fprintf (stderr, " [-v] verbose\n");
fprintf (stderr, " [-l] digital loopback in FPGA\n");
fprintf (stderr, " [-c] counting in FPGA\n");
@@ -72,9 +73,9 @@
main (int argc, char **argv)
{
bool verbose_p = false;
- bool forever_p = false;
bool loopback_p = false;
bool counting_p = false;
+ int max_bytes = 128 * (1L << 20);
int ch;
char *output_filename = 0;
int which_board = 0;
@@ -83,10 +84,10 @@
set_progname (argv[0]);
- while ((ch = getopt (argc, argv, "fvlco:D:F:")) != EOF){
+ while ((ch = getopt (argc, argv, "fvlco:D:F:M:")) != EOF){
switch (ch){
case 'f':
- forever_p = true;
+ max_bytes = 0;
break;
case 'v':
@@ -113,6 +114,11 @@
center_freq = strtod (optarg, 0);
break;
+ case 'M':
+ max_bytes = strtol (optarg, 0, 0) * (1L << 20);
+ if (max_bytes < 0) max_bytes = 0;
+ break;
+
default:
usage ();
}
@@ -143,7 +149,7 @@
urx->start(); // start data xfers
- test_input (urx, forever_p, fp);
+ test_input (urx, max_bytes, fp);
if (fp)
fclose (fp);
@@ -155,15 +161,13 @@
static bool
-test_input (usrp_standard_rx *urx, bool forever_p, FILE *fp)
+test_input (usrp_standard_rx *urx, int max_bytes, FILE *fp)
{
int fd = -1;
static const int BUFSIZE = urx->block_size();
static const int N = BUFSIZE/sizeof (short);
short buf[N];
int nbytes = 0;
- // int max_bytes = 512 * (1L << 20);
- int max_bytes = 128 * (1L << 20);
double start_wall_time = get_elapsed_time ();
double start_cpu_time = get_cpu_usage ();
@@ -174,9 +178,9 @@
bool overrun;
int noverruns = 0;
- for (nbytes = 0; forever_p || nbytes < max_bytes; nbytes += BUFSIZE){
+ for (nbytes = 0; max_bytes == 0 || nbytes < max_bytes; nbytes += BUFSIZE){
- int ret = urx->read (buf, sizeof (buf), &overrun);
+ unsigned int ret = urx->read (buf, sizeof (buf), &overrun);
if (ret != sizeof (buf)){
fprintf (stderr, "test_input: error, ret = %d\n", ret);
}
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