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Fix for Pluto AD9363 sample rate delta

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master
Nick Hall 2 years ago committed by Justin Tallon
parent d8cfc1b127
commit 3abf9f8e0b
4 changed files with 59 additions and 37 deletions
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64
lib/examples/npdsch_enodeb.c
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@ -35,6 +35,9 @@
#define HAVE_NPDSCH 1
#define NPDCCH_SF_IDX 1
#define NOF_TX_ANT 1
#define MAX_SRATE_DELTA 2 // allowable delta (in Hz) between requested and actual sample rate
static const uint8_t dummy_sib1_payload[] = {0x43, 0x4d, 0xd0, 0x92, 0x22, 0x06, 0x04, 0x30, 0x28,
0x6e, 0x87, 0xd0, 0x4b, 0x13, 0x90, 0xb4, 0x12, 0xa1,
@ -65,6 +68,7 @@ static uint32_t i_rep_val = 0;
static char* rf_args = "";
static float rf_amp = 0.8, rf_gain = 70.0, rf_freq = 0;
static float file_snr = -100.0;
static char* rf_dev = "";
static bool null_file_sink = false;
static srsran_random_t* random_gen;
@ -83,22 +87,23 @@ static srsran_ra_nbiot_dl_dci_t ra_dl;
static srsran_ra_nbiot_dl_dci_t ra_dl_sib1;
static srsran_chest_dl_nbiot_t ch_est;
static srsran_mib_nb_t mib_nb;
static uint32_t sched_info_tag =
0; // according to Table 16.4.1.3-3 in 36.213, 0 means 4 NPDSCH repetitions with TBS 208
static uint32_t sched_info_tag = 0;
// according to Table 16.4.1.3-3 in 36.213, 0 means 4 NPDSCH repetitions with TBS 208
static cf_t *sf_buffer = NULL, *output_buffer = NULL;
static int sf_n_re = 0, sf_n_samples = 0;
void usage(char* prog)
{
printf("Usage: %s [agmiftlReosncvrpu]\n", prog);
printf("Usage: %s [aeOgfostmirnlRpv]\n", prog);
#ifndef DISABLE_RF
printf("\t-a RF args [Default %s]\n", rf_args);
printf("\t-e RF amplitude [Default %.2f]\n", rf_amp);
printf("\t-O RF device [Default use RF board]\n");
printf("\t-g RF TX gain [Default %.2f dB]\n", rf_gain);
printf("\t-f RF TX frequency [Default %.1f MHz]\n", rf_freq / 1000000);
#else
printf("\t RF is disabled.\n");
printf("\t RF is disabled!\n");
#endif
printf("\t-o output_file [Default use RF board]\n");
printf("\t-s SNR-10 (only if output to file) [Default %f]\n", file_snr);
@ -116,7 +121,7 @@ void usage(char* prog)
void parse_args(int argc, char** argv)
{
int opt;
while ((opt = getopt(argc, argv, "aglfmiosncrtvpuR")) != -1) {
while ((opt = getopt(argc, argv, "aeOgfostmirnlRpv")) != -1) {
switch (opt) {
case 'a':
rf_args = argv[optind];
@ -127,6 +132,9 @@ void parse_args(int argc, char** argv)
case 'e':
rf_amp = strtof(argv[optind], NULL);
break;
case 'O':
rf_dev = argv[optind];
break;
case 'f':
rf_freq = strtof(argv[optind], NULL);
break;
@ -139,12 +147,12 @@ void parse_args(int argc, char** argv)
case 't':
sched_info_tag = (uint32_t)strtol(argv[optind], NULL, 10);
break;
case 'm':
i_tbs_val = (uint32_t)strtol(argv[optind], NULL, 10);
break;
case 'i':
i_sf_val = (uint32_t)strtol(argv[optind], NULL, 10);
break;
case 'm':
i_tbs_val = (uint32_t)strtol(argv[optind], NULL, 10);
break;
case 'r':
i_rep_val = (uint32_t)strtol(argv[optind], NULL, 10);
break;
@ -171,7 +179,7 @@ void parse_args(int argc, char** argv)
if (!output_file_name && rf_freq == 0) {
usage(argv[0]);
printf("\nError! Either RF frequency or output filename need to be specified.\n");
printf("\nError: either RF frequency or output filename needs to be specified\n");
exit(-1);
}
@ -188,12 +196,12 @@ void base_init()
// init memory
sf_buffer = srsran_vec_cf_malloc(sf_n_re);
if (!sf_buffer) {
perror("malloc");
perror("Error: malloc for sf_buffer");
exit(-1);
}
output_buffer = srsran_vec_cf_malloc(sf_n_samples);
if (!output_buffer) {
perror("malloc");
perror("Error: malloc for output buffer");
exit(-1);
}
// open file or USRP
@ -209,13 +217,17 @@ void base_init()
}
} else {
#ifndef DISABLE_RF
printf("Opening RF device...\n");
if (srsran_rf_open(&radio, rf_args)) {
fprintf(stderr, "Error opening rf\n");
if (strlen(rf_dev) > 0) {
if (srsran_rf_open_devname(&radio, rf_dev, rf_args, NOF_TX_ANT)) {
fprintf(stderr, "Error opening RF device %s\n", rf_dev);
exit(-1);
}
} else if (srsran_rf_open(&radio, rf_args)) {
fprintf(stderr, "Error opening RF default device\n");
exit(-1);
}
#else
printf("Error RF not available. Select an output file\n");
printf("Error: RF not available - select an output file\n");
exit(-1);
#endif
}
@ -346,7 +358,7 @@ static int update_radl(void)
srsran_ra_nbiot_dl_dci_to_grant(&ra_dl, &dummy_grant, DUMMY_SFN, DUMMY_SFIDX, DUMMY_R_MAX, false, cell.mode);
srsran_ra_nbiot_dl_grant_to_nbits(&dummy_grant, cell, 0, &dummy_nbits);
srsran_ra_nbiot_dl_grant_fprint(stdout, &dummy_grant);
printf("Type new MCS index and press Enter: ");
printf("Enter new MCS index: ");
fflush(stdout);
return SRSRAN_SUCCESS;
@ -373,7 +385,7 @@ static int update_control(void)
i_tbs_val = atoi(input);
bzero(input, sizeof(input));
if (update_radl()) {
printf("Trying with last known MCS index\n");
printf("Trying last known MCS index\n");
i_tbs_val = last_i_tbs_val;
return update_radl();
}
@ -381,7 +393,7 @@ static int update_control(void)
return 0;
} else if (n < 0) {
// error
perror("select");
perror("Error: select for MCS entry");
return -1;
} else {
return 0;
@ -450,7 +462,7 @@ int main(int argc, char** argv)
}
if (srsran_nbiot_ue_dl_set_cell(&ue_dl, cell)) {
fprintf(stderr, "Setting cell in UE DL\n");
fprintf(stderr, "Error setting cell in UE DL\n");
return -1;
}
@ -489,16 +501,17 @@ int main(int argc, char** argv)
signal(SIGINT, sig_int_handler);
if (!output_file_name) {
/* set sampling frequency */
int srate = srsran_sampling_freq_hz(cell.base.nof_prb);
if (srate != -1) {
printf("Setting sampling rate %.2f MHz\n", (float)srate / 1000000);
printf("Setting tx sampling rate %.2f MHz\n", (float)srate / 1000000);
float srate_rf = srsran_rf_set_tx_srate(&radio, (double)srate);
if (srate_rf != srate) {
fprintf(stderr, "Could not set sampling rate\n");
if (abs(srate - srate_rf) > MAX_SRATE_DELTA) {
ERROR("Could not set tx sampling rate : wanted %d got %f", srate, srate_rf);
exit(-1);
}
} else {
fprintf(stderr, "Invalid number of PRB %d\n", cell.base.nof_prb);
fprintf(stderr, "Error: invalid number of PRB %d\n", cell.base.nof_prb);
exit(-1);
}
srsran_rf_set_tx_gain(&radio, rf_gain);
@ -508,6 +521,7 @@ int main(int argc, char** argv)
#endif
if (update_radl()) {
fprintf(stderr, "Error updating radl\n");
exit(-1);
}
@ -590,7 +604,7 @@ int main(int argc, char** argv)
}
if (srsran_nbiot_ue_dl_is_sib1_sf(&ue_dl, sfn, sf_idx)) {
INFO("%d.%d: Transmitting SIB1-NB.", sfn, sf_idx);
INFO("%d.%d: Transmitting SIB1-NB", sfn, sf_idx);
assert(send_data == false);
// configure DL grant for SIB1-NB transmission
@ -714,7 +728,7 @@ int main(int argc, char** argv)
base_free();
printf("Done\n");
printf("%s done\n", argv[0]);
return SRSRAN_SUCCESS;
}

9
lib/examples/pdsch_enodeb.c
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@ -50,6 +50,8 @@ static char* output_file_name = NULL;
#define CFR_THRES_STEP 0.05f
#define CFR_PAPR_STEP 0.1f
#define MAX_SRATE_DELTA 2 // allowable delta (in Hz) between requested and actual sample rate
static srsran_cell_t cell = {
25, // nof_prb
1, // nof_ports
@ -956,12 +958,13 @@ int main(int argc, char** argv)
signal(SIGINT, sig_int_handler);
if (!output_file_name) {
/* set sampling frequency */
int srate = srsran_sampling_freq_hz(cell.nof_prb);
if (srate != -1) {
printf("Setting sampling rate %.2f MHz\n", (float)srate / 1000000);
printf("Setting tx sampling rate %.2f MHz\n", (float)srate / 1000000);
float srate_rf = srsran_rf_set_tx_srate(&radio, (double)srate);
if (srate_rf != srate) {
ERROR("Could not set sampling rate");
if (abs(srate - srate_rf) > MAX_SRATE_DELTA) {
ERROR("Could not set tx sampling rate : wanted %d got %f", srate, srate_rf);
exit(-1);
}
} else {

12
lib/examples/pdsch_ue.c
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@ -29,6 +29,8 @@
#define ENABLE_AGC_DEFAULT
#define MAX_SRATE_DELTA 2 // allowable delta (in Hz) between requested and actual sample rate
#ifndef DISABLE_RF
#include "srsran/phy/rf/rf.h"
@ -475,7 +477,7 @@ int main(int argc, char** argv)
signal(SIGINT, sig_int_handler);
/* set receiver frequency */
printf("Tunning receiver to %.3f MHz\n", (prog_args.rf_freq + prog_args.file_offset_freq) / 1000000);
printf("Tuning receiver to %.3f MHz\n", (prog_args.rf_freq + prog_args.file_offset_freq) / 1000000);
srsran_rf_set_rx_freq(&rf, prog_args.rf_nof_rx_ant, prog_args.rf_freq + prog_args.file_offset_freq);
uint32_t ntrial = 0;
@ -486,7 +488,7 @@ int main(int argc, char** argv)
ERROR("Error searching for cell");
exit(-1);
} else if (ret == 0 && !go_exit) {
printf("Cell not found after %d trials. Trying again (Press Ctrl+C to exit)\n", ntrial++);
printf("Cell not found after [%4d] attempts. Trying again... (Ctrl+C to exit)\n", ntrial++);
}
} while (ret == 0 && !go_exit);
@ -498,10 +500,10 @@ int main(int argc, char** argv)
/* set sampling frequency */
int srate = srsran_sampling_freq_hz(cell.nof_prb);
if (srate != -1) {
printf("Setting sampling rate %.2f MHz\n", (float)srate / 1000000);
printf("Setting rx sampling rate %.2f MHz\n", (float)srate / 1000000);
float srate_rf = srsran_rf_set_rx_srate(&rf, (double)srate);
if (srate_rf != srate) {
ERROR("Could not set sampling rate");
if (abs(srate - srate_rf) > MAX_SRATE_DELTA) {
ERROR("Could not set rx sampling rate : wanted %d got %f", srate, srate_rf);
exit(-1);
}
} else {

9
lib/examples/pssch_ue.c
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@ -34,6 +34,8 @@
#define PCAP_FILENAME "/tmp/pssch.pcap"
#define MAX_SRATE_DELTA 2 // allowable delta (in Hz) between requested and actual sample rate
static bool keep_running = true;
static srsran_cell_sl_t cell_sl = {.nof_prb = 50, .tm = SRSRAN_SIDELINK_TM4, .cp = SRSRAN_CP_NORM, .N_sl_id = 0};
@ -254,13 +256,14 @@ int main(int argc, char** argv)
printf("Set RX freq: %.6f MHz\n",
srsran_rf_set_rx_freq(&radio, prog_args.nof_rx_antennas, prog_args.rf_freq) / 1e6);
printf("Set RX gain: %.1f dB\n", prog_args.rf_gain);
int srate = srsran_sampling_freq_hz(cell_sl.nof_prb);
/* set sampling frequency */
int srate = srsran_sampling_freq_hz(cell_sl.nof_prb);
if (srate != -1) {
printf("Setting sampling rate %.2f MHz\n", (float)srate / 1000000);
float srate_rf = srsran_rf_set_rx_srate(&radio, (double)srate);
if (srate_rf != srate) {
ERROR("Could not set sampling rate");
if (abs(srate - srate_rf) > MAX_SRATE_DELTA) {
ERROR("Could not set sampling rate : wanted %d got %f", srate, srate_rf);
exit(-1);
}
} else {

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