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hackrf_sweep: eliminate -n option (num_samples)

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The firmware has the capability to dwell on each frequency for a
configurable duration in sweep mode, but the hackrf_sweep host tool did
not behave correctly when asked to use a non-default dwell time. The
option has never worked properly, and it is not a feature anyone seems
to want.
This commit is contained in:
Michael Ossmann
2021-11-14 11:41:56 -07:00
parent 2775279fd0
commit 9856452215
1 changed files with 1 additions and 17 deletions
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18
host/hackrf-tools/src/hackrf_sweep.c
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@ -107,7 +107,6 @@ int gettimeofday(struct timeval *tv, void* ignored) {
#define m_sleep(a) usleep((a*1000))
#endif
uint32_t num_samples = SAMPLES_PER_BLOCK;
uint32_t num_sweeps = 0;
int num_ranges = 0;
uint16_t frequencies[MAX_SWEEP_RANGES*2];
@ -350,7 +349,6 @@ static void usage() {
fprintf(stderr, "\t[-p antenna_enable] # Antenna port power, 1=Enable, 0=Disable\n");
fprintf(stderr, "\t[-l gain_db] # RX LNA (IF) gain, 0-40dB, 8dB steps\n");
fprintf(stderr, "\t[-g gain_db] # RX VGA (baseband) gain, 0-62dB, 2dB steps\n");
fprintf(stderr, "\t[-n num_samples] # Number of samples per frequency, 8192-4294967296\n");
fprintf(stderr, "\t[-w bin_width] # FFT bin width (frequency resolution) in Hz\n");
fprintf(stderr, "\t[-1] # one shot mode\n");
fprintf(stderr, "\t[-N num_sweeps] # Number of sweeps to perform\n");
@ -449,10 +447,6 @@ int main(int argc, char** argv) {
result = parse_u32(optarg, &vga_gain);
break;
case 'n':
result = parse_u32(optarg, &num_samples);
break;
case 'N':
finite_mode = true;
result = parse_u32(optarg, &num_sweeps);
@ -503,16 +497,6 @@ int main(int argc, char** argv) {
if (vga_gain % 2)
fprintf(stderr, "warning: vga_gain (-g) must be a multiple of 2\n");
if (num_samples % SAMPLES_PER_BLOCK) {
fprintf(stderr, "warning: num_samples (-n) must be a multiple of 8192\n");
return EXIT_FAILURE;
}
if (num_samples < SAMPLES_PER_BLOCK) {
fprintf(stderr, "warning: num_samples (-n) must be at least 8192\n");
return EXIT_FAILURE;
}
if( amp ) {
if( amp_enable > 1 ) {
fprintf(stderr, "argument error: amp_enable shall be 0 or 1.\n");
@ -665,7 +649,7 @@ int main(int argc, char** argv) {
ifftwPlan = fftwf_plan_dft_1d(fftSize * step_count, ifftwIn, ifftwOut, FFTW_BACKWARD, FFTW_MEASURE);
}
result = hackrf_init_sweep(device, frequencies, num_ranges, num_samples * 2,
result = hackrf_init_sweep(device, frequencies, num_ranges, BYTES_PER_BLOCK,
TUNE_STEP * FREQ_ONE_MHZ, OFFSET, INTERLEAVED);
if( result != HACKRF_SUCCESS ) {
fprintf(stderr, "hackrf_init_sweep() failed: %s (%d)\n",