kopia lustrzana https://github.com/F5OEO/ft8_lib
Working towards a test tool
Karlis Goba
rodzic
a4992b068e
commit
81bcc70286
9
Makefile
9
Makefile
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@ -3,3 +3,12 @@ LDFLAGS = -lm
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gen_ft8: gen_ft8.o encode.o pack.o text.o pack_77.o encode_91.o
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$(CXX) $(LDFLAGS) -o $@ $^
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.PHONY: run_tests
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run_tests: test
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@./test
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test: test.o encode.o pack.o text.o pack_77.o encode_91.o unpack.o
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$(CXX) $(LDFLAGS) -o $@ $^
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68
gen_ft8.cpp
68
gen_ft8.cpp
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@ -10,33 +10,6 @@
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#include "encode_91.h"
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void convert_8bit_to_6bit(uint8_t *dst, const uint8_t *src, int nBits) {
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// Zero-fill the destination array as we will only be setting bits later
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for (int j = 0; j < (nBits + 5) / 6; ++j) {
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dst[j] = 0;
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}
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// Set the relevant bits
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uint8_t mask_src = (1 << 7);
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uint8_t mask_dst = (1 << 5);
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for (int i = 0, j = 0; nBits > 0; --nBits) {
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if (src[i] & mask_src) {
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dst[j] |= mask_dst;
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}
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mask_src >>= 1;
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if (mask_src == 0) {
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mask_src = (1 << 7);
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++i;
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}
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mask_dst >>= 1;
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if (mask_dst == 0) {
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mask_dst = (1 << 5);
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++j;
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}
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}
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}
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void synth_fsk(const uint8_t *symbols, int nSymbols, float f0, float spacing, float symbol_rate, float signal_rate, float *signal) {
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float phase = 0;
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float dt = 1/signal_rate;
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@ -110,47 +83,6 @@ void save_wav(const float *signal, int num_samples, int sample_rate, const char
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}
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void test1() {
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//const char *test_in3 = "CQ DL7ACA JO40"; // 62, 32, 32, 49, 37, 27, 59, 2, 30, 19, 49, 16
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//const char *test_in3 = "VA3UG F1HMR 73"; // 52, 54, 60, 12, 55, 54, 7, 19, 2, 23, 59, 16
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const char *test_in3 = "RA3Y VE3NLS 73"; // 46, 6, 32, 22, 55, 20, 11, 32, 53, 23, 59, 16
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uint8_t test_out3[9];
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int rc = packmsg(test_in3, test_out3);
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printf("RC = %d\n", rc);
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for (int i = 0; i < 9; ++i) {
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printf("%02x ", test_out3[i]);
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}
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printf("\n");
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uint8_t test_out4[12];
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convert_8bit_to_6bit(test_out4, test_out3, 72);
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for (int i = 0; i < 12; ++i) {
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printf("%d ", test_out4[i]);
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}
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printf("\n");
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}
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void test2() {
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uint8_t test_in[11] = { 0xF1, 0x02, 0x03, 0x04, 0x05, 0x60, 0x70, 0x80, 0x90, 0xA0, 0xFF };
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uint8_t test_out[22];
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encode174(test_in, test_out);
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for (int j = 0; j < 22; ++j) {
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printf("%02x ", test_out[j]);
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}
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printf("\n");
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}
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void test3() {
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uint8_t test_in2[10] = { 0x11, 0x00, 0x00, 0x00, 0x00, 0x0E, 0x10, 0x04, 0x01, 0x00 };
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uint16_t crc1 = ft8_crc(test_in2, 76); // Calculate CRC of 76 bits only
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printf("CRC: %04x\n", crc1); // should be 0x0708
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}
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void usage() {
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printf("Generate a 15-second WAV file encoding a given message.\n");
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printf("Usage:\n");
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@ -0,0 +1,136 @@
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#include <cstdlib>
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#include <cstring>
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#include <cstdio>
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#include <cmath>
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#include <string>
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#include <vector>
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#include "text.h"
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#include "pack.h"
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#include "encode.h"
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#include "unpack.h"
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#include "pack_77.h"
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#include "encode_91.h"
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#define LOG_LEVEL LOG_INFO
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#define LOG_INFO 0
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#define LOG_WARN 1
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#define LOG_ERROR 2
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#define LOG_FATAL 3
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#define LOG(level, ...) if (level >= LOG_LEVEL) printf(__VA_ARGS__)
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void convert_8bit_to_6bit(uint8_t *dst, const uint8_t *src, int nBits) {
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// Zero-fill the destination array as we will only be setting bits later
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for (int j = 0; j < (nBits + 5) / 6; ++j) {
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dst[j] = 0;
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}
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// Set the relevant bits
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uint8_t mask_src = (1 << 7);
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uint8_t mask_dst = (1 << 5);
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for (int i = 0, j = 0; nBits > 0; --nBits) {
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if (src[i] & mask_src) {
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dst[j] |= mask_dst;
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}
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mask_src >>= 1;
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if (mask_src == 0) {
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mask_src = (1 << 7);
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++i;
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}
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mask_dst >>= 1;
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if (mask_dst == 0) {
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mask_dst = (1 << 5);
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++j;
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}
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}
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}
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class TestCase {
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public:
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TestCase(const std::string &name) : _name(name) {
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//_all_cases.push_back(this);
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}
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virtual bool run(const std::string ¶ms) = 0;
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private:
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std::string _name;
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//static std::vector<TestCase *> _all_cases;
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};
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//std::vector<TestCase *> TestCase::_all_cases;
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class TestCase1 : public TestCase {
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public:
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TestCase1() : TestCase("Test Case 1") {}
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bool run(const std::string ¶ms) override {
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return true;
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}
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};
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bool test1() {
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//const char *msg = "CQ DL7ACA JO40"; // 62, 32, 32, 49, 37, 27, 59, 2, 30, 19, 49, 16
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const char *msg = "VA3UG F1HMR 73"; // 52, 54, 60, 12, 55, 54, 7, 19, 2, 23, 59, 16
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//const char *msg = "RA3Y VE3NLS 73"; // 46, 6, 32, 22, 55, 20, 11, 32, 53, 23, 59, 16
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uint8_t a72[9];
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int rc = packmsg(msg, a72);
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if (rc < 0) return false;
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LOG(LOG_INFO, "8-bit packed: ");
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for (int i = 0; i < 9; ++i) {
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LOG(LOG_INFO, "%02x ", a72[i]);
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}
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LOG(LOG_INFO, "\n");
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uint8_t a72_6bit[12];
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convert_8bit_to_6bit(a72_6bit, a72, 72);
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LOG(LOG_INFO, "6-bit packed: ");
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for (int i = 0; i < 12; ++i) {
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LOG(LOG_INFO, "%d ", a72_6bit[i]);
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}
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LOG(LOG_INFO, "\n");
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char msg_out_raw[14];
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unpack(a72, msg_out_raw);
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char msg_out[14];
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fmtmsg(msg_out, msg_out_raw);
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LOG(LOG_INFO, "msg_out = [%s]\n", msg_out);
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return true;
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}
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void test2() {
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uint8_t test_in[11] = { 0xF1, 0x02, 0x03, 0x04, 0x05, 0x60, 0x70, 0x80, 0x90, 0xA0, 0xFF };
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uint8_t test_out[22];
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encode174(test_in, test_out);
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for (int j = 0; j < 22; ++j) {
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printf("%02x ", test_out[j]);
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}
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printf("\n");
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}
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void test3() {
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uint8_t test_in2[10] = { 0x11, 0x00, 0x00, 0x00, 0x00, 0x0E, 0x10, 0x04, 0x01, 0x00 };
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uint16_t crc1 = ft8_crc(test_in2, 76); // Calculate CRC of 76 bits only
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printf("CRC: %04x\n", crc1); // should be 0x0708
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}
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int main() {
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test1();
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return 0;
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}
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62
unpack.cpp
62
unpack.cpp
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@ -42,40 +42,42 @@ void unpackcall(uint32_t nc, char *callsign) {
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// extract maidenhead locator
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void unpackgrid(uint32_t ng, char *grid) {
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// start of special grid locators for sig strength &c.
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NGBASE = 180*180
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// // start of special grid locators for sig strength &c.
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// NGBASE = 180*180
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if ng == NGBASE+1:
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return " "
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if ng >= NGBASE+1 and ng < NGBASE+31:
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return " -%02d" % (ng - (NGBASE+1)) // sig str, -01 to -30 DB
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if ng >= NGBASE+31 and ng < NGBASE+62:
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return "R-%02d" % (ng - (NGBASE+31))
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if ng == NGBASE+62:
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return "RO "
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if ng == NGBASE+63:
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return "RRR "
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if ng == NGBASE+64:
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return "73 "
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// if ng == NGBASE+1:
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// return " "
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// if ng >= NGBASE+1 and ng < NGBASE+31:
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// return " -%02d" % (ng - (NGBASE+1)) // sig str, -01 to -30 DB
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// if ng >= NGBASE+31 and ng < NGBASE+62:
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// return "R-%02d" % (ng - (NGBASE+31))
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// if ng == NGBASE+62:
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// return "RO "
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// if ng == NGBASE+63:
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// return "RRR "
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// if ng == NGBASE+64:
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// return "73 "
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lat = (ng % 180) - 90
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ng = int(ng / 180)
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lng = (ng * 2) - 180
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// lat = (ng % 180) - 90
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// ng = int(ng / 180)
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// lng = (ng * 2) - 180
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g = "%c%c%c%c" % (ord('A') + int((179-lng)/20),
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ord('A') + int((lat+90)/10),
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ord('0') + int(((179-lng)%20)/2),
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ord('0') + (lat+90)%10)
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// g = "%c%c%c%c" % (ord('A') + int((179-lng)/20),
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// ord('A') + int((lat+90)/10),
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// ord('0') + int(((179-lng)%20)/2),
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// ord('0') + (lat+90)%10)
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if g[0:2] == "KA":
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// really + signal strength
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sig = int(g[2:4]) - 50
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return "+%02d" % (sig)
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// if g[0:2] == "KA":
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// // really + signal strength
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// sig = int(g[2:4]) - 50
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// return "+%02d" % (sig)
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if g[0:2] == "LA":
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// really R+ signal strength
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sig = int(g[2:4]) - 50
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return "R+%02d" % (sig)
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// if g[0:2] == "LA":
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// // really R+ signal strength
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// sig = int(g[2:4]) - 50
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// return "R+%02d" % (sig)
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grid[0] = 0;
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}
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@ -118,7 +120,7 @@ int unpack(const uint8_t *a72, char *message) {
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nc1 |= (a72[2] << 4);
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nc1 |= (a72[3] >> 4);
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nc2 = (a72[3] << 24);
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nc2 = ((a72[3] & 0x0F) << 24);
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nc2 |= (a72[4] << 16);
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nc2 |= (a72[5] << 8);
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nc2 |= (a72[6]);
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