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added one shot mode to hackrf_sweep

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This commit is contained in:
Michael Ossmann
2017-02-08 10:46:08 -07:00
parent 5b881e1d54
commit 03d93c1369
1 changed files with 16 additions and 3 deletions
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19
host/hackrf-tools/src/hackrf_sweep.c
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@ -173,6 +173,7 @@ bool antenna = false;
uint32_t antenna_enable; uint32_t antenna_enable;
bool binary_output = false; bool binary_output = false;
bool one_shot = false;
volatile bool sweep_started = false; volatile bool sweep_started = false;
int fftSize = 20; int fftSize = 20;
@ -208,6 +209,9 @@ int rx_callback(hackrf_transfer* transfer) {
byte_count += transfer->valid_length; byte_count += transfer->valid_length;
buf = (int8_t*) transfer->buffer; buf = (int8_t*) transfer->buffer;
for(j=0; j<BLOCKS_PER_TRANSFER; j++) { for(j=0; j<BLOCKS_PER_TRANSFER; j++) {
if(do_exit) {
return 0;
}
ubuf = (uint8_t*) buf; ubuf = (uint8_t*) buf;
if(ubuf[0] == 0x7F && ubuf[1] == 0x7F) { if(ubuf[0] == 0x7F && ubuf[1] == 0x7F) {
frequency = ((uint64_t)(ubuf[9]) << 56) | ((uint64_t)(ubuf[8]) << 48) | ((uint64_t)(ubuf[7]) << 40) frequency = ((uint64_t)(ubuf[9]) << 56) | ((uint64_t)(ubuf[8]) << 48) | ((uint64_t)(ubuf[7]) << 40)
@ -274,6 +278,10 @@ int rx_callback(hackrf_transfer* transfer) {
} }
printf("\n"); printf("\n");
} }
if(one_shot && ((uint64_t)(frequency+((DEFAULT_SAMPLE_RATE_HZ*3)/4))
>= (uint64_t)(FREQ_ONE_MHZ*frequencies[num_ranges*2-1]))) {
do_exit = true;
}
} }
return 0; return 0;
} }
@ -289,6 +297,7 @@ static void usage() {
fprintf(stderr, "\t[-g gain_db] # RX VGA (baseband) gain, 0-62dB, 2dB 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, 16384-4294967296\n"); fprintf(stderr, "\t[-n num_samples] # Number of samples per frequency, 16384-4294967296\n");
fprintf(stderr, "\t[-w bin_width] # FFT bin width (frequency resolution) in Hz\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[-B] # binary output\n"); fprintf(stderr, "\t[-B] # binary output\n");
fprintf(stderr, "\n"); fprintf(stderr, "\n");
fprintf(stderr, "Output fields:\n"); fprintf(stderr, "Output fields:\n");
@ -328,7 +337,7 @@ int main(int argc, char** argv) {
uint32_t freq_max = 6000; uint32_t freq_max = 6000;
while( (opt = getopt(argc, argv, "a:f:p:l:g:d:n:w:Bh?")) != EOF ) { while( (opt = getopt(argc, argv, "a:f:p:l:g:d:n:w:1Bh?")) != EOF ) {
result = HACKRF_SUCCESS; result = HACKRF_SUCCESS;
switch( opt ) switch( opt )
{ {
@ -390,6 +399,10 @@ int main(int argc, char** argv) {
fftSize = DEFAULT_SAMPLE_RATE_HZ / fft_bin_width; fftSize = DEFAULT_SAMPLE_RATE_HZ / fft_bin_width;
break; break;
case '1':
one_shot = true;
break;
case 'B': case 'B':
binary_output = true; binary_output = true;
break; break;
@ -456,9 +469,9 @@ int main(int argc, char** argv) {
return EXIT_FAILURE; return EXIT_FAILURE;
} }
if(65536 < fftSize) { if(16368 < fftSize) {
fprintf(stderr, fprintf(stderr,
"argument error: FFT bin width (-w) resulted in more than 65536 FFT bins\n"); "argument error: FFT bin width (-w) too small, resulted in more than 16368 FFT bins\n");
return EXIT_FAILURE; return EXIT_FAILURE;
} }