410 lines
12 KiB
C
410 lines
12 KiB
C
#define _CRT_SECURE_NO_WARNINGS
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#define WIN32_LEAN_AND_MEAN
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#include <Windows.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#ifdef _WIN32
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#include "getopt.h"
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#else
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#include <unistd.h>
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#endif
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#include <lime/LimeSuite.h>
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// Configration Properties:
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// C/C++ --> General --> Additional Include Directories: C:\Program Files\PothosSDR\include
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// Linker --> General --> Additional Library Directories: C:\Program Files\PothosSDR\lib
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// Linker --> Input --> Additional Dependencies: LimeSuite.lib
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#define EXIT_CODE_NO_DEVICE (-2)
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#define EXIT_CODE_LMS_OPEN (-1)
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#define TX_FREQUENCY 1575420000.0
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#define TX_SAMPLERATE 2500000.0
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#define TX_BANDWIDTH 5000000.0
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#define DEFAULT_ANTENNA 1 // antenna with BW [30MHz .. 2000MHz]
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typedef struct timeval {
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long tv_sec;
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long tv_usec;
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} timeval;
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int gettimeofday(struct timeval * tp, struct timezone * tzp)
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{
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// Note: some broken versions only have 8 trailing zero's, the correct epoch has 9 trailing zero's
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// This magic number is the number of 100 nanosecond intervals since January 1, 1601 (UTC)
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// until 00:00:00 January 1, 1970
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static const uint64_t EPOCH = ((uint64_t)116444736000000000ULL);
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SYSTEMTIME system_time;
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FILETIME file_time;
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uint64_t time;
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GetSystemTime(&system_time);
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SystemTimeToFileTime(&system_time, &file_time);
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time = ((uint64_t)file_time.dwLowDateTime);
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time += ((uint64_t)file_time.dwHighDateTime) << 32;
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tp->tv_sec = (long)((time - EPOCH) / 10000000L);
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tp->tv_usec = (long)(system_time.wMilliseconds * 1000);
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return 0;
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}
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void usage(const char *progname)
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{
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fprintf(stderr, "Usage: %s [options]\n"
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" -f <file> select IQ sample data file to transmit (required)\n"
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" -g <gain> with gain in [0.0 .. 1.0] set the so-called normalized RF gain in LimeSDR (default: 1.0 max RF power)\n"
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" -c <channel> with channel either 0 or 1 (default: 0)\n"
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" -a <antenna> with antenna in { 0, 1, 2 } (default: 1)\n"
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" -i <index> select LimeSDR if multiple devices connected (default: 0)\n"
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" -b <bits> select bit count in IQ sample in { 1, 8, 12, 16 }, (default: 16)\n"
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" -s <samplerate> configure baseband sample rate (default: 2500000.0)\n"
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" -d <dynamic> configure dynamic for the 1-bit mode (default: 2047, max 12-bit signed value supported by LimeSDR)\n",
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progname);
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return;
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}
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int main(int argc, char *const argv[])
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{
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if (argc<3) {
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usage(argv[0]);
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exit(1);
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}
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int device_count = LMS_GetDeviceList(NULL);
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if (device_count < 1)
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{
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fprintf(stderr, "ERROR: No device was found.\n");
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return(EXIT_CODE_NO_DEVICE);
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}
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lms_info_str_t *device_list = malloc(sizeof(lms_info_str_t) * device_count);
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device_count = LMS_GetDeviceList(device_list);
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int i = 0;
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while (i < device_count)
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{
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printf("device[%d/%d]=%s" "\n", i + 1, device_count, device_list[i]);
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i++;
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}
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double gain = 1.0;
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int32_t antenna = DEFAULT_ANTENNA;
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int32_t channel = 0;
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int32_t index = 0;
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int32_t bits = 16;
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double sampleRate = TX_SAMPLERATE;
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int32_t dynamic = 2047;
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int result;
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char txfile[128];
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txfile[0] = 0; // Empty TX file name
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while ((result = getopt(argc, argv, "f:g:c:a:i:b:s:d:")) != -1)
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{
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switch (result)
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{
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case 'f':
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strcpy(txfile, optarg);
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break;
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case 'a':
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antenna = strtol(optarg, NULL, 0);
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break;
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case 'b':
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bits = strtol(optarg, NULL, 0);
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break;
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case 'c':
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channel = strtol(optarg, NULL, 0);
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break;
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case 'g':
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gain = strtod(optarg, NULL);
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break;
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case 'i':
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index = strtol(optarg, NULL, 0);
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break;
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case 's':
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sampleRate = strtod(optarg, NULL);
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break;
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case 'd':
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dynamic = strtol(optarg, NULL, 0);
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if (dynamic > 2047)
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dynamic = 2047;
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break;
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case '?':
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usage(argv[0]);
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exit(1);
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default:
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break;
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}
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}
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// Open TX file.
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FILE *fp;
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if (txfile[0] == 0)
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{
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printf("ERROR: I/Q sampling data file is not specified.\n");
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exit(1);
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}
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fp = fopen(txfile, "rb");
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if (fp == NULL) {
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fprintf(stderr, "ERROR: Failed to open TX file: %s\n", argv[1]);
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exit(1);
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}
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// Use existing device
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if (index < 0)
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index = 0;
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if (index >= device_count)
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index = 0;
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printf("Using device index %d [%s]" "\n", index, device_list[index]);
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// Normalized gain shall be in [0.0 .. 1.0]
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if (gain < 0.0)
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gain = 0.0;
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if (gain > 1.0)
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gain = 1.0;
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printf("Using normalized gain %lf" "\n", gain);
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// Open device and initialize.
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lms_device_t *device = NULL;
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if (LMS_Open(&device, device_list[index], NULL))
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return(EXIT_CODE_LMS_OPEN);
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int lmsReset = LMS_Reset(device);
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if (lmsReset)
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printf("lmsReset %d(%s)" "\n", lmsReset, LMS_GetLastErrorMessage());
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int lmsInit = LMS_Init(device);
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if (lmsInit)
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printf("lmsInit %d(%s)" "\n", lmsInit, LMS_GetLastErrorMessage());
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// Select channel.
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int channel_count = LMS_GetNumChannels(device, LMS_CH_TX);
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// printf("Tx channel count %d" "\n", channel_count);
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if (channel < 0)
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channel = 0;
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if (channel >= channel_count)
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channel = 0;
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printf("Using channel %d" "\n", channel);
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// Select antenna.
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int antenna_count = LMS_GetAntennaList(device, LMS_CH_TX, channel, NULL);
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printf("TX%d Channel has %d antenna(ae)" "\n", channel, antenna_count);
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lms_name_t *antenna_name = malloc(sizeof(lms_name_t) * antenna_count);
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if (antenna_count > 0)
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{
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int i = 0;
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lms_range_t *antenna_bw = malloc(sizeof(lms_range_t) * antenna_count);
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LMS_GetAntennaList(device, LMS_CH_TX, channel, antenna_name);
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for (i = 0; i < antenna_count; i++)
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{
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LMS_GetAntennaBW(device, LMS_CH_TX, channel, i, antenna_bw + i);
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printf("Channel %d, antenna [%s] has BW [%lf .. %lf] (step %lf)" "\n", channel, antenna_name[i], antenna_bw[i].min, antenna_bw[i].max, antenna_bw[i].step);
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}
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}
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if (antenna < 0)
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antenna = DEFAULT_ANTENNA;
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if (antenna >= antenna_count)
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antenna = DEFAULT_ANTENNA;
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// LMS_SetAntenna(device, LMS_CH_TX, channel, antenna); // SetLOFrequency should take care of selecting the proper antenna
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LMS_SetNormalizedGain(device, LMS_CH_TX, channel, gain);
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// Disable all other channels
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LMS_EnableChannel(device, LMS_CH_TX, 1 - channel, false);
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LMS_EnableChannel(device, LMS_CH_RX, 0, false);
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LMS_EnableChannel(device, LMS_CH_RX, 1, false);
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// Enable our Tx channel
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LMS_EnableChannel(device, LMS_CH_TX, channel, true);
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int setLOFrequency = LMS_SetLOFrequency(device, LMS_CH_TX, channel, TX_FREQUENCY);
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if (setLOFrequency)
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printf("setLOFrequency(%lf)=%d(%s)" "\n", TX_FREQUENCY, setLOFrequency, LMS_GetLastErrorMessage());
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// Set sample rate.
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lms_range_t sampleRateRange;
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int getSampleRateRange = LMS_GetSampleRateRange(device, LMS_CH_TX, &sampleRateRange);
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if (getSampleRateRange)
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printf("getSampleRateRange=%d(%s)" "\n", getSampleRateRange, LMS_GetLastErrorMessage());
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else
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{
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printf("sampleRateRange [%lf MHz.. %lf MHz] (step=%lf Hz)" "\n", sampleRateRange.min / 1e6, sampleRateRange.max / 1e6, sampleRateRange.step);
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}
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printf("Set sample rate to %lf ..." "\n", sampleRate);
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int setSampleRate = LMS_SetSampleRate(device, sampleRate, 0);
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if (setSampleRate)
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printf("setSampleRate=%d(%s)" "\n", setSampleRate, LMS_GetLastErrorMessage());
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double actualHostSampleRate = 0.0;
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double actualRFSampleRate = 0.0;
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int getSampleRate = LMS_GetSampleRate(device, LMS_CH_TX, channel, &actualHostSampleRate, &actualRFSampleRate);
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if (getSampleRate)
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printf("getSampleRate=%d(%s)" "\n", getSampleRate, LMS_GetLastErrorMessage());
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else
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printf("actualRate %lf (Host) / %lf (RF)" "\n", actualHostSampleRate, actualRFSampleRate);
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printf("Calibrating ..." "\n");
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int calibrate = LMS_Calibrate(device, LMS_CH_TX, channel, TX_BANDWIDTH, 0);
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if (calibrate)
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printf("calibrate=%d(%s)" "\n", calibrate, LMS_GetLastErrorMessage());
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printf("Setup TX stream ..." "\n");
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lms_stream_t tx_stream = { .channel = channel,.fifoSize = 1024 * 1024,.throughputVsLatency = 0.5,.isTx = true,.dataFmt = LMS_FMT_I12 };
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int setupStream = LMS_SetupStream(device, &tx_stream);
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if (setupStream)
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printf("setupStream=%d(%s)" "\n", setupStream, LMS_GetLastErrorMessage());
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struct s16iq_sample_s {
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signed short int i;
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signed short int q;
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};
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int nSamples = (int)sampleRate / 100;
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struct s16iq_sample_s *sampleBuffer = (struct s16iq_sample_s*)malloc(sizeof(struct s16iq_sample_s) * nSamples);
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LMS_StartStream(&tx_stream);
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int loop = 0;
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if ((12 == bits) || (16 == bits))
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{
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// File contains interleaved 16-bit IQ values, either with only 12-bit data, or with 16-bit data
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while (fread(sampleBuffer, sizeof(struct s16iq_sample_s), nSamples, fp))
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{
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loop++;
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if (0 == (loop % 100))
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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printf("gettimeofday()=> %ld:%06ld ; ", tv.tv_sec, tv.tv_usec);
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lms_stream_status_t status;
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LMS_GetStreamStatus(&tx_stream, &status); //Obtain TX stream stats
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printf("TX rate:%lf MB/s" "\n", status.linkRate / 1e6);
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}
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if (16 == bits)
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{
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// Scale down to 12-bit
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// Quick and dirty, so -1 (0xFFFF) to -15 (0xFFF1) scale down to -1 instead of 0
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int i = 0;
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while (i < nSamples) {
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sampleBuffer[i].i >>= 4;
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sampleBuffer[i].q >>= 4;
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i++;
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}
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}
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int sendStream = LMS_SendStream(&tx_stream, sampleBuffer, nSamples, NULL, 1000);
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if (sendStream < 0)
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printf("sendStream %d(%s)" "\n", sendStream, LMS_GetLastErrorMessage());
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}
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}
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else if (8 == bits)
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{
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// File contains interleaved signed 8-bit IQ values
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struct s8iq_sample_s {
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signed char i;
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signed char q;
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};
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struct s8iq_sample_s *fileSamples = (struct s8iq_sample_s*)malloc(sizeof(struct s8iq_sample_s) * nSamples);
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while (fread(fileSamples, sizeof(struct s8iq_sample_s), nSamples, fp))
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{
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loop++;
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if (0 == (loop % 100))
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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printf("gettimeofday()=> %ld:%06ld ; ", tv.tv_sec, tv.tv_usec);
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lms_stream_status_t status;
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LMS_GetStreamStatus(&tx_stream, &status); //Obtain TX stream stats
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printf("TX rate:%lf MB/s" "\n", status.linkRate / 1e6);
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}
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// Up-Scale to 12-bit
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int i = 0;
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while (i < nSamples)
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{
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sampleBuffer[i].i = (fileSamples[i].i << 4);
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sampleBuffer[i].q = (fileSamples[i].q << 4);
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i++;
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}
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int sendStream = LMS_SendStream(&tx_stream, sampleBuffer, nSamples, NULL, 1000);
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if (sendStream < 0)
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printf("sendStream %d(%s)" "\n", sendStream, LMS_GetLastErrorMessage());
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}
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free(fileSamples);
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}
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else if (1 == bits)
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{
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// File contains interleaved signed 1-bit IQ values
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// Each byte is IQIQIQIQ
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int16_t expand_lut[256][8];
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int i, j;
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for (i = 0; i<256; i++)
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{
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for (j = 0; j<8; j++)
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expand_lut[i][j] = ((i >> (7 - j)) & 0x1) ? dynamic : -dynamic;
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}
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printf("1-bit mode: using dynamic=%d" "\n", dynamic);
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// printf("sizeof(expand_lut[][])=%d, sizeof(expand_lut[0])=%d" "\n", sizeof(expand_lut), sizeof(expand_lut[0]));
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int8_t *fileBuffer = (int8_t*)malloc(sizeof(int8_t) * nSamples);
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while (fread(fileBuffer, sizeof(int8_t), nSamples / 4, fp))
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{
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loop++;
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if (0 == (loop % 100))
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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printf("gettimeofday()=> %ld:%06ld ; ", tv.tv_sec, tv.tv_usec);
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lms_stream_status_t status;
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LMS_GetStreamStatus(&tx_stream, &status); //Obtain TX stream stats
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printf("TX rate:%lf MB/s" "\n", status.linkRate / 1e6);
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}
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// Expand
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int src = 0;
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int dst = 0;
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while (src < (nSamples / 4))
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{
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memcpy(sampleBuffer + dst, expand_lut + fileBuffer[src], sizeof(expand_lut[0]));
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dst += 4;
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src++;
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}
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int sendStream = LMS_SendStream(&tx_stream, sampleBuffer, nSamples, NULL, 1000);
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if (sendStream < 0)
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printf("sendStream %d(%s)" "\n", sendStream, LMS_GetLastErrorMessage());
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}
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free(fileBuffer);
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}
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LMS_StopStream(&tx_stream);
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LMS_DestroyStream(device, &tx_stream);
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free(sampleBuffer);
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printf("Closing device...\n");
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LMS_EnableChannel(device, LMS_CH_TX, channel, false);
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LMS_Close(device);
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// Close TX file
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fclose(fp);
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printf("Done.\n");
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return(0);
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}
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