diff options
Diffstat (limited to 'util_tx_test/src/util_tx_test.c')
| -rw-r--r-- | util_tx_test/src/util_tx_test.c | 59 |
1 files changed, 40 insertions, 19 deletions
diff --git a/util_tx_test/src/util_tx_test.c b/util_tx_test/src/util_tx_test.c index bb7672b..e684d07 100644 --- a/util_tx_test/src/util_tx_test.c +++ b/util_tx_test/src/util_tx_test.c @@ -79,17 +79,18 @@ static void sig_handler(int sigio) { /* describe command line options */ void usage(void) { printf("*** Library version information ***\n%s\n\n", lgw_version_info()); - printf( "Available options:\n"); - printf( " -h print this help\n"); - printf( " -f <float> target frequency in MHz\n"); - printf( " -s <uint> Spreading Factor\n"); - printf( " -b <uint> Modulation bandwidth in kHz\n"); - printf( " -p <int> RF power (dBm)\n"); - printf( " -r <uint> LoRa preamble length (symbols)\n"); - printf( " -z <uint> payload size (bytes)\n"); - printf( " -t <uint> pause between packets (ms)\n"); - printf( " -x <int> numbers of times the sequence is repeated (-1 for continuous)\n"); - printf( " -i send packet using inverted modulation polarity \n"); + printf("Available options:\n"); + printf(" -h print this help\n"); + printf(" -f <float> target frequency in MHz\n"); + printf(" -b <uint> LoRa bandwidth in kHz [125, 250, 500]\n"); + printf(" -s <uint> LoRa Spreading Factor [7-12]\n"); + printf(" -c <uint> LoRa Coding Rate [1-4]\n"); + printf(" -p <int> RF power (dBm)\n"); + printf(" -r <uint> LoRa preamble length (symbols)\n"); + printf(" -z <uint> payload size (bytes, <256)\n"); + printf(" -t <uint> pause between packets (ms)\n"); + printf(" -x <int> nb of times the sequence is repeated (-1 loop until stopped)\n"); + printf(" -i send packet using inverted modulation polarity\n"); } /* -------------------------------------------------------------------------- */ @@ -109,6 +110,7 @@ int main(int argc, char **argv) /* application parameters */ uint32_t f_target = lowfreq[RF_CHAIN]/2 + upfreq[RF_CHAIN]/2; /* target frequency */ int sf = 10; /* SF10 by default */ + int cr = 1; /* CR1 aka 4/5 by default */ int bw = 125; /* 125kHz bandwidth by default */ int pow = 14; /* 14 dBm by default */ int preamb = 8; /* 8 symbol preamble by default */ @@ -127,7 +129,7 @@ int main(int argc, char **argv) uint16_t cycle_count = 0; /* parse command line options */ - while ((i = getopt (argc, argv, "hf:s:b:p:r:z:t:x:i")) != -1) { + while ((i = getopt (argc, argv, "hf:b:s:c:p:r:z:t:x:i")) != -1) { switch (i) { case 'h': usage(); @@ -145,6 +147,17 @@ int main(int argc, char **argv) } break; + case 'b': /* -b <int> Modulation bandwidth in kHz */ + i = sscanf(optarg, "%i", &xi); + if ((i != 1) || ((xi != 125)&&(xi != 250)&&(xi != 500))) { + MSG("ERROR: invalid LoRa bandwidth\n"); + usage(); + return EXIT_FAILURE; + } else { + bw = xi; + } + break; + case 's': /* -s <int> Spreading Factor */ i = sscanf(optarg, "%i", &xi); if ((i != 1) || (xi < 7) || (xi > 12)) { @@ -156,14 +169,14 @@ int main(int argc, char **argv) } break; - case 'b': /* -b <int> Modulation bandwidth in kHz */ + case 'c': /* -c <int> Coding Rate */ i = sscanf(optarg, "%i", &xi); - if ((i != 1) || ((xi != 125)&&(xi != 250)&&(xi != 500))) { - MSG("ERROR: invalid LoRa bandwidth\n"); + if ((i != 1) || (xi < 1) || (xi > 4)) { + MSG("ERROR: invalid coding rate\n"); usage(); return EXIT_FAILURE; } else { - bw = xi; + cr = xi; } break; @@ -240,7 +253,7 @@ int main(int argc, char **argv) MSG("ERROR: frequency out of authorized band (accounting for modulation bandwidth)\n"); return EXIT_FAILURE; } - printf("Sending %i packets on %u Hz (BW %i kHz, SF %i, %i bytes payload, %i symbols preamble) at %i dBm, with %i ms between each\n", repeat, f_target, bw, sf, pl_size, preamb, pow, delay); + printf("Sending %i packets on %u Hz (BW %i kHz, SF %i, CR %i, %i bytes payload, %i symbols preamble) at %i dBm, with %i ms between each\n", repeat, f_target, bw, sf, cr, pl_size, preamb, pow, delay); /* configure signal handling */ sigemptyset(&sigact.sa_mask); @@ -286,11 +299,19 @@ int main(int argc, char **argv) MSG("ERROR: invalid 'sf' variable\n"); return EXIT_FAILURE; } - txpkt.coderate = CR_LORA_4_5; + switch (cr) { + case 1: txpkt.coderate = CR_LORA_4_5; break; + case 2: txpkt.coderate = CR_LORA_4_6; break; + case 3: txpkt.coderate = CR_LORA_4_7; break; + case 4: txpkt.coderate = CR_LORA_4_8; break; + default: + MSG("ERROR: invalid 'cr' variable\n"); + return EXIT_FAILURE; + } txpkt.invert_pol = invert; txpkt.preamble = preamb; txpkt.size = pl_size; - strcpy((char *)txpkt.payload, "TEST**abcdefghijklmnopqrstuvwxyz0123456789" ); /* abc.. is for padding */ + strcpy((char *)txpkt.payload, "TEST**abcdefghijklmnopqrstuvwxyz#0123456789#ABCDEFGHIJKLMNOPQRSTUVWXYZ#0123456789#abcdefghijklmnopqrstuvwxyz#0123456789#ABCDEFGHIJKLMNOPQRSTUVWXYZ#0123456789#abcdefghijklmnopqrstuvwxyz#0123456789#ABCDEFGHIJKLMNOPQRSTUVWXYZ#0123456789#abcdefghijklmnopqrs#" ); /* abc.. is for padding */ /* main loop */ cycle_count = 0; |