diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/fl2k_ampliphase.c | 44 |
1 files changed, 35 insertions, 9 deletions
diff --git a/src/fl2k_ampliphase.c b/src/fl2k_ampliphase.c index 7167ba7..38adcf1 100644 --- a/src/fl2k_ampliphase.c +++ b/src/fl2k_ampliphase.c @@ -257,7 +257,18 @@ static inline void dds_complex(dds_t *dds, int8_t * i, int8_t * q) amp_i = (int32_t) (creal(dds->amplitude) * 32767.0); // 0..15 amp_q = (int32_t) (cimag(dds->amplitude) * 32767.0); + if (phase_idx_i < 0 || phase_idx_i > 255) { + fprintf(stderr, "phase_idx_i wrong: %d\n", phase_idx_i); + fprintf(stderr, " dds->phase %ld\n", dds->phase); + fprintf(stderr, " dds->phase_delta %ld\n", dds->phase_delta); + abort(); + } amp_i = amp_i * trig_table.inphase[phase_idx_i]; // 0..31 + // + if (phase_idx_q < 0 || phase_idx_q > 255) { + fprintf(stderr, "phase_idx_q wrong: %d\n", phase_idx_q); + abort(); + } amp_q = amp_q * trig_table.quadrature[phase_idx_q]; // 0..31 *i = (int8_t) (amp_i >> 24); // 0..31 >> 24 => 0..8 @@ -266,6 +277,7 @@ static inline void dds_complex(dds_t *dds, int8_t * i, int8_t * q) /* advance modulation signal by interpolated input from baseband */ dds->amplitude += dds->ampslope; dds->phase_delta += dds->phase_slope; + //fprintf(stderr, "ps %ld pd %ld\n", dds->phase_slope, dds->phase_delta); return; } @@ -285,8 +297,6 @@ static inline void dds_complex_buf(dds_t *dds, int8_t *ibuf, int8_t *qbuf, int c * in the amp buffer */ static void *iq_worker(void *arg) { - register float freq; - register float tmp; dds_t base_signal; int8_t *tmp_ptr; uint32_t len = 0; @@ -489,18 +499,20 @@ static void *file_worker(void *arg){ uint32_t * filebuf; int i; const size_t len = sizeof(*filebuf) * FL2K_BUF_LEN; + size_t wrote; f = arg; filebuf = malloc(len); if(filebuf == NULL){ - fprintf(stderr,"Error allocating debug file buffer.\n"); + fprintf(stderr, "Error allocating debug file buffer.\n"); } - else{ - while(1){ + else { + while (!do_exit){ for(i=0;i<FL2K_BUF_LEN;i++){ filebuf[i] = (itxbuf[i] & 0xff) | ((uint32_t) qtxbuf[i]) << 8; } - if(fwrite(filebuf,1,sizeof(len),f) != len){ + wrote = fwrite(filebuf, sizeof(len), 1, f); + if (wrote != 1){ perror("Error writing to debug file"); break; } @@ -511,6 +523,7 @@ static void *file_worker(void *arg){ pthread_mutex_lock(&iq_mutex); pthread_cond_signal(&iq_cond); pthread_mutex_unlock(&iq_mutex); + if (filebuf) free(filebuf); return NULL; } @@ -625,6 +638,10 @@ int main(int argc, char **argv) fprintf(stderr, "malloc error!\n"); exit(1); } + memset(iambuf, 0, FL2K_BUF_LEN); + memset(itxbuf, 0, FL2K_BUF_LEN); + memset(qambuf, 0, FL2K_BUF_LEN); + memset(qtxbuf, 0, FL2K_BUF_LEN); /* Baseband buffer */ @@ -632,8 +649,18 @@ int main(int argc, char **argv) ampbuf = malloc(BUFFER_SAMPLES * sizeof(float complex)); pdbuf = malloc(BUFFER_SAMPLES * sizeof(long int)); pdslopebuf = malloc(BUFFER_SAMPLES * sizeof(long int)); - readpos = 0; - writepos = 1; + if (!slopebuf || !ampbuf || !pdbuf || !pdslopebuf) { + fprintf(stderr, "malloc error!\n"); + exit(1); + } + + memset(slopebuf, 0, BUFFER_SAMPLES * sizeof(float complex)); + memset(ampbuf, 0, BUFFER_SAMPLES * sizeof(float complex)); + memset(pdbuf, 0, BUFFER_SAMPLES * sizeof(long int)); + memset(pdslopebuf, 0, BUFFER_SAMPLES * sizeof(long int)); + + readpos = 0; + writepos = 0; fprintf(stdout, "Samplerate: %3.2f MHz\n", (float)samp_rate/1000000); fprintf(stdout, "Center frequency: %5.0f kHz\n", (float)base_freq/1000); @@ -699,7 +726,6 @@ int main(int argc, char **argv) sigign.sa_handler = SIG_IGN; sigaction(SIGINT, &sigact, NULL); sigaction(SIGTERM, &sigact, NULL); - sigaction(SIGQUIT, &sigact, NULL); sigaction(SIGPIPE, &sigign, NULL); #else SetConsoleCtrlHandler( (PHANDLER_ROUTINE) sighandler, TRUE ); |