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pirip
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first frame repeat, but stuck in a loop

pull/3/head
David Rowe 2020-11-11 07:54:51 +00:00
parent 72bc03d23e
commit d260ab8e2a
2 changed files with 33 additions and 18 deletions
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14
tx/frame_repeater.c
View File

@ -72,8 +72,8 @@ int main(int argc, char *argv[]) {
char buf[256];
ret = read(rpitx_fsk_fifo, buf, sizeof(buf));
if (ret > 0) {
fprintf(stderr, "Read %d bytes from rpitx_fsk\n", ret);
if (strcmp(buf,"Tx off\n") == 0) tx_off_event = 0;
fprintf(stderr, "frame_repeater: Read %d bytes from rpitx_fsk: %s\n", ret, buf);
if (strcmp(buf,"Tx off") == 0) tx_off_event = 1;
}
if (prev_rx_status != rx_status)
@ -83,7 +83,7 @@ int main(int argc, char *argv[]) {
switch(state) {
case IDLE:
if (rx_status == (FREEDV_RX_SYNC | FREEDV_RX_BITS)) {
fprintf(stderr, " Starting to receive a burst\n");
fprintf(stderr, "frame_repeater: Starting to receive a burst\n");
memcpy(data_buffer, data, data_bytes_per_frame);
bytes_in = data_bytes_per_frame;
next_state = RECEIVING_BURST;
@ -91,26 +91,26 @@ int main(int argc, char *argv[]) {
break;
case RECEIVING_BURST:
if (rx_status & FREEDV_RX_BITS) {
fprintf(stderr, " Receiving a frame in a burst\n");
fprintf(stderr, "frame_repeater: Receiving a frame in a burst\n");
// buffer latest packet
memcpy(data_buffer, data, data_bytes_per_frame);
bytes_in += data_bytes_per_frame;
assert(bytes_in <= data_bytes_per_frame*MAX_FRAMES);
}
if (!(rx_status & FREEDV_RX_SYNC)) {
fprintf(stderr, " Sending received burst of %d bytes\n", bytes_in);
fprintf(stderr, "frame_repeater: Sending received burst of %d bytes\n", bytes_in);
/* We've lost RX_SYNC so receive burst finished. So
lets Tx data we received. fwrite's shouldn't block
due to size of stdout buffer */
bytes_out = 0; burst_control = 1;
while(bytes_out != bytes_in) {
fwrite(&burst_control, sizeof(uint8_t), data_bytes_per_frame, stdout);
fwrite(&burst_control, sizeof(uint8_t), 1, stdout);
fwrite(&data_buffer[bytes_out], sizeof(uint8_t), data_bytes_per_frame, stdout);
bytes_out += data_bytes_per_frame;
burst_control = 0;
}
burst_control = 2; memset(data, 0, data_bytes_per_frame);
fwrite(&burst_control, sizeof(uint8_t), data_bytes_per_frame, stdout);
fwrite(&burst_control, sizeof(uint8_t), 1, stdout);
fwrite(data, sizeof(uint8_t), data_bytes_per_frame, stdout);
fflush(stdout);
next_state = WAIT_FOR_TX_OFF;

31
tx/rpitx_fsk.cpp
View File

@ -123,6 +123,7 @@ int main(int argc, char **argv)
char ant_switch_gpio[128] = "";
char ant_switch_gpio_path[MAX_CHAR] = "";
int rpitx_fsk_fifo = 0;
int packed = 0;
char usage[] = "usage: %s [-m fskM 2|4] [-f carrierFreqHz] [-r symbRateHz] [-s shiftHz] [-t] [-c] "
"[--testframes Nframes] InputOneBitPerCharFile\n"
@ -135,6 +136,7 @@ int main(int argc, char **argv)
" --bursts B Send B bursts of N testframes (default 1)\n"
" --seq send packet sequence numbers (breaks testframe BER counting)\n"
" --fifo fifoName send stats messages to fifoName\n"
" --packed packed byte input\n"
"\n"
" Example 1, send 10000 bits of (100 bit) tests frames from external test frame generator\n"
" at 1000 bits/s using 2FSK:\n\n"
@ -152,6 +154,7 @@ int main(int argc, char **argv)
{"bursts", required_argument, 0, 'e'},
{"seq", no_argument, 0, 'q'},
{"fifo", required_argument, 0, 'i'},
{"packed", no_argument, 0, 'l'},
{0, 0, 0, 0}
};
@ -175,6 +178,9 @@ int main(int argc, char **argv)
case 'm':
m = atoi(optarg);
break;
case 'l':
packed = 1;
break;
case 'f':
frequency = atof(optarg);
break;
@ -343,19 +349,28 @@ int main(int argc, char **argv)
while(1) {
uint8_t burst_control;
int BytesRead;
int nRead;
if (fsk_ldpc) {
// in fsk_ldpc mode we prepend input data with a burst control byte
BytesRead = fread(&burst_control, sizeof(uint8_t), 1, fin);
if (BytesRead == 0) goto finished;
nRead = fread(&burst_control, sizeof(uint8_t), 1, fin);
if (nRead == 0) goto finished;
}
BytesRead = fread(data_bits, sizeof(uint8_t), data_bits_per_frame, fin);
if (packed) {
int data_bytes_per_frame = data_bits_per_frame/8;
uint8_t data_bytes[data_bytes_per_frame];
nRead = fread(data_bytes, sizeof(uint8_t), data_bytes_per_frame, fin);
freedv_unpack(data_bits, data_bytes, data_bits_per_frame);
nRead *= 8;
}
else {
nRead = fread(data_bits, sizeof(uint8_t), data_bits_per_frame, fin);
}
fprintf(stderr, "rpitx_fsk: burst_control: %d BytesRead: %d\n", burst_control, BytesRead);
fprintf(stderr, "rpitx_fsk: burst_control: %d nRead: %d\n", burst_control, nRead);
if (BytesRead != data_bits_per_frame) goto finished;
if (nRead != data_bits_per_frame) goto finished;
if (fsk_ldpc) {
@ -391,8 +406,8 @@ int main(int argc, char **argv)
if (*ant_switch_gpio_path) sys_gpio(ant_switch_gpio_path, "0");
fprintf(stderr, "rpitx_fsk: Tx off\n");
char buf[256];
sprintf(buf, "Tx off\n");
if (write(rpitx_fsk_fifo, buf, strlen(buf)) ==-1) {
sprintf(buf, "Tx off");
if (write(rpitx_fsk_fifo, buf, strlen(buf)+1) ==-1) {
fprintf(stderr, "rpitx_fsk: error writing to FIFO\n");
}
}