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CubeSatSim
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Merge branch 'master' of https://github.com/alanbjohnston/CubeSatSim

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Alan Johnston 7 years ago
parent 5b5de2d31b 8fc1153737
commit 766bcda145
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cw/.cproject
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cw/cw_main.c.no_thread
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// Copyright (c) 2018 Brandenburg Tech, LLC
// All right reserved.
//
// THIS SOFTWARE IS PROVIDED BY BRANDENBURG TECH, LLC AND CONTRIBUTORS
// ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BRANDENBURT TECH, LLC
// AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
// OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
// WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <axradio/axradioinit_p.h>
#include <axradio/axradiomode_p.h>
#include <axradio/axradiorx_p.h>
#include <axradio/axradiotx_p.h>
#include <generated/configtx.h>
#include <pthread.h>
#include <semaphore.h>
#include <spi/ax5043spi_p.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#define MAX_MESSAGE_LENGTH (197)
extern uint8_t axradio_rxbuffer[];
void *transmit(void *arg);
int get_message(uint8_t *buffer, int avail);
int get_cw(uint8_t *buffer, int avail);
int add_dot(uint8_t *msg, int number);
int add_dash(uint8_t *msg, int number);
int add_space(uint8_t *msg, int number);
int lower_digit(int number);
int upper_digit(int number);
int encode_digit(uint8_t *msg, int number);
void config_cw();
enum RadioState {UnknownState, RxState, TxState};
enum RadioState currentState = UnknownState;
enum ReceiveState {WaitingForNewPacket, WaitingForPacketCounter1,
WaitingForPacketCounter2, WaitingForMessageLength1,
WaitingForMessageLength2, WaitingForMessage,
WaitingForChecksum1, WaitingForChecksum2};
static uint8_t on_value = 0xff;
static uint8_t off_value = 0x00;
int spacing = 1; // integer number of octets for a dot
int main(void)
{
uint8_t retVal;
// Configure SPI bus to AX5043
setSpiChannel(SPI_CHANNEL);
setSpiSpeed(SPI_SPEED);
initializeSpi();
// Initialize the AX5043
retVal = axradio_init();
if (retVal == AXRADIO_ERR_NOCHIP) {
fprintf(stderr, "ERROR: No AX5043 RF chip found\n");
exit(EXIT_FAILURE);
}
if (retVal != AXRADIO_ERR_NOERROR) {
fprintf(stderr, "ERROR: Unable to initialize AX5043\n");
exit(EXIT_FAILURE);
}
printf("INFO: Found and initialized AX5043\n");
retVal = mode_tx();
if (retVal != AXRADIO_ERR_NOERROR) {
fprintf(stderr, "ERROR: Unable to enter TX mode\n");
exit(EXIT_FAILURE);
}
int result;
/*
sem_t ax5043_sem;
result = sem_init(&ax5043_sem, 0, 1);
if (result != 0) {
fprintf(stderr, "ERROR: Unable to create semaphore with error %s\n", strerror(errno));
exit(EXIT_FAILURE);
}
pthread_t transmit_thread;
result = pthread_create(&transmit_thread, NULL, transmit, (void *)&ax5043_sem);
if (result != 0) {
fprintf(stderr, "ERROR: Unable to spawn transmit thread with error %s\n", strerror(errno));
exit(EXIT_FAILURE);
}
void *transmit_result;
result = pthread_join(transmit_thread, &transmit_result);
if (result != 0) {
fprintf(stderr, "ERROR: Unable to wait for transmit thread to finish with error %s\n", strerror(errno));
exit(EXIT_FAILURE);
}
sem_destroy(&ax5043_sem);
return 0;
}
void *transmit(void *arg) {
sem_t *sem;
sem = (sem_t *)arg;
*
uint8_t retVal;
*
int x;
for (x = 0; x < 0x20; x++)
{
printf("Register %x contents: %x\n",x,(int)ax5043ReadReg(x));
}
printf("Register Dump complete");
*/
for (;;) {
int result;
// allocate space for the buffer
static uint8_t packet[MAX_MESSAGE_LENGTH + 1];
//uint16_t pkt_counter;
// ++pkt_counter;
int reserved_space = 0;
int msg_length = get_cw(&packet[reserved_space], (MAX_MESSAGE_LENGTH + 1) - reserved_space);
/*
result = sem_wait(sem);
if (result != 0) {
fprintf(stderr, "Failed to wait on semaphore with error %s\n", strerror(errno));
exit(EXIT_FAILURE);
}
// Enter transmit mode only if not already in receive mode
if (currentState != TxState) {
retVal = mode_tx();
if (retVal != AXRADIO_ERR_NOERROR) {
fprintf(stderr, "ERROR: Unable to enter TX mode\n");
exit(EXIT_FAILURE);
}
currentState = TxState;
}
*/
printf("INFO: Sending another packet...\n");
printf("DEBUG: msg_length = %d\n", msg_length);
printf("DEBUG: reserved_space = %d\n", reserved_space);
while(1) {
/*
int x;
for (x = 0; x < 0x20; x++)
{
printf("Register %x contents: %x\n",x,(int)ax5043ReadReg(x));
}
printf("Register Dump complete");
*/
/*
printf("Register write to clear framing and crc\n");
ax5043WriteReg(0x12,0);
printf("Register write to disable fec\n");
ax5043WriteReg(0x18,0);
printf("Register write \n");
ax5043WriteReg(0x165,0);
ax5043WriteReg(0x166,0);
ax5043WriteReg(0x167,0x50); // 0x08); // 0x20);
ax5043WriteReg(0x161,0);
ax5043WriteReg(0x162,0x20);
long txRate;
txRate = ax5043ReadReg(0x167) + 256 * ax5043ReadReg(0x166) + 65536 * ax5043ReadReg(0x165);
printf("Tx Rate %x %x %x \n", ax5043ReadReg(0x165), ax5043ReadReg(0x166), ax5043ReadReg(0x167));
long fskDev;
fskDev = ax5043ReadReg(0x163) + 256 * ax5043ReadReg(0x162) + 65536 * ax5043ReadReg(0x161);
ax5043WriteReg(0x37,(uint8_t)((ax5043ReadReg(0x37) + 4))); // Increase FREQA
printf("Tx Rate: %ld FSK Dev: %ld \n", txRate, fskDev);
ax5043WriteReg(0x10,0); // ASK
printf("Modulation: %x \n", (int)ax5043ReadReg(0x10));
printf("Frequency A: 0x%x %x %x %x \n",(int)ax5043ReadReg(0x34),(int)ax5043ReadReg(0x35),(int)ax5043ReadReg(0x36),(int)ax5043ReadReg(0x37));
*/
/* HERE */
/*
int x;
for (x = 0; x < 0x20; x++)
{
printf("Register %x contents: %x\n",x,(int)ax5043ReadReg(x));
}
printf("Register Dump complete");
*/
config_cw();
retVal = transmit_packet(&remoteaddr_tx, packet, (uint16_t)(msg_length + reserved_space));
if (retVal != AXRADIO_ERR_NOERROR) {
fprintf(stderr, "ERROR: Unable to transmit a packet\n");
exit(EXIT_FAILURE);
}
sleep(1);
}
/*
result = sem_post(sem);
if (result != 0) {
fprintf(stderr, "Failed to post on semaphore with error %s\n", strerror(errno));
exit(EXIT_FAILURE);
}
*/
usleep(200000);
}
return NULL;
}
int get_cw(uint8_t *buffer, int avail) {
int count = 0;
/*
count += add_space(&buffer[count], 10);
count += add_dash(&buffer[count], 1); // c
count += add_dot(&buffer[count], 1);
count += add_dash(&buffer[count], 1);
count += add_dot(&buffer[count], 1);
count += add_space(&buffer[count], 3);
count += add_dash(&buffer[count], 2); // q
count += add_dot(&buffer[count], 1);
count += add_dash(&buffer[count], 1);
count += add_space(&buffer[count], 7);
count += add_dot(&buffer[count], 4); // h
count += add_space(&buffer[count], 3);
count += add_dot(&buffer[count], 2); // i
count += add_space(&buffer[count], 7);
count += add_dot(&buffer[count], 4); // h
count += add_space(&buffer[count], 3);
count += add_dot(&buffer[count], 2); // i
count += add_space(&buffer[count], 7);
*/
int tlm_1a = 42;
int tlm_1b = 35;
count += encode_digit(&buffer[count], 1);
count += encode_digit(&buffer[count], upper_digit(tlm_1a));
count += encode_digit(&buffer[count], lower_digit(tlm_1a));
count += add_space(&buffer[count], 7);
count += encode_digit(&buffer[count], 1);
count += encode_digit(&buffer[count], upper_digit(tlm_1b));
count += encode_digit(&buffer[count], lower_digit(tlm_1b));
count += add_space(&buffer[count], 14);
count += encode_digit(&buffer[count], 1);
count += encode_digit(&buffer[count], upper_digit(tlm_1a++));
count += encode_digit(&buffer[count], lower_digit(tlm_1a));
count += add_space(&buffer[count], 7);
/*
count += encode_digit(&buffer[count], 1);
count += encode_digit(&buffer[count], upper_digit(tlm_1b++));
count += encode_digit(&buffer[count], lower_digit(tlm_1b));
count += add_space(&buffer[count], 14);
count += encode_digit(&buffer[count], 2);
count += encode_digit(&buffer[count], upper_digit(tlm_1a++));
count += encode_digit(&buffer[count], lower_digit(tlm_1a));
count += add_space(&buffer[count], 7);
count += encode_digit(&buffer[count], 2);
count += encode_digit(&buffer[count], upper_digit(tlm_1b++));
count += encode_digit(&buffer[count], lower_digit(tlm_1b));
count += add_space(&buffer[count], 14);
count += encode_digit(&buffer[count], 2);
count += encode_digit(&buffer[count], upper_digit(tlm_1a++));
count += encode_digit(&buffer[count], lower_digit(tlm_1a));
count += add_space(&buffer[count], 7);
count += encode_digit(&buffer[count], 2);
count += encode_digit(&buffer[count], upper_digit(tlm_1b++));
count += encode_digit(&buffer[count], lower_digit(tlm_1b));
count += add_space(&buffer[count], 14);
*/
printf("DEBUG count: %d avail: %d \n", count, avail);
if (count > avail) {
buffer[avail-1] = 0;
count = avail-1;
printf("DEBUG count > avail!\n");
}
// printf("DEBUG get_cw: ***%s***\n", buffer);
//return strlen((char *)buffer);
return count;
}
int add_dash(uint8_t *msg, int number) {
int counter = 0;
int i,j;
for (j=0; j < number; j++) {
for (i=0; i < spacing * 3; i++) {
msg[counter++] = on_value;
}
counter += add_space(&msg[counter], 1);
}
return counter;
}
int add_dot(uint8_t *msg, int number) {
int counter = 0;
int i,j;
for (j=0; j < number; j++) {
for (i=0; i < spacing; i++) {
msg[counter++] = on_value;
}
counter += add_space(&msg[counter], 1);
}
return counter;
}
int add_space(uint8_t *msg, int number) {
int j;
int counter = 0;
for (j=0; j < number * spacing; j++) {
msg[counter++] = off_value;
}
return counter;
}
int encode_digit(uint8_t *buffer, int digit) {
int count = 0;
switch(digit)
{
case 0:
count += add_dash(&buffer[count], 5); // 0
count += add_space(&buffer[count], 3);
break;
case 1:
count += add_dot(&buffer[count], 1); // 1
count += add_dash(&buffer[count], 4);
count += add_space(&buffer[count], 3);
break;
case 2:
count += add_dot(&buffer[count], 2); // 2
count += add_dash(&buffer[count], 3);
count += add_space(&buffer[count], 3);
break;
case 3:
count += add_dot(&buffer[count], 3); // 3
count += add_dash(&buffer[count], 2);
count += add_space(&buffer[count], 3);
break;
case 4:
count += add_dot(&buffer[count], 4); // 4
count += add_dash(&buffer[count], 1);
count += add_space(&buffer[count], 3);
break;
case 5:
count += add_dot(&buffer[count], 5); // 5
count += add_space(&buffer[count], 3);
break;
case 6:
count += add_dash(&buffer[count], 1); // 6
count += add_dot(&buffer[count], 4);
count += add_space(&buffer[count], 3);
break;
case 7:
count += add_dash(&buffer[count], 2); // 7
count += add_dot(&buffer[count], 3);
count += add_space(&buffer[count], 3);
break;
case 8:
count += add_dash(&buffer[count], 3); // 8
count += add_dot(&buffer[count], 2);
count += add_space(&buffer[count], 3);
break;
case 9:
count += add_dash(&buffer[count], 4); // 9
count += add_dot(&buffer[count], 1);
count += add_space(&buffer[count], 3);
break;
default:
printf("ERROR: Not a digit!\n");
return 0;
}
return count;
}
int lower_digit(int number) {
int digit = 0;
if (number < 100)
digit = number - ((int)(number/10) * 10);
else
printf("ERROR: Not a digit in lower_digit!\n");
return digit;
}
int upper_digit(int number) {
int digit = 0;
if (number < 100)
digit = (int)(number/10);
else
printf("ERROR: Not a digit in upper_digit!\n");
return digit;
}
void config_cw() {
printf("Register write to clear framing and crc\n");
ax5043WriteReg(0x12,0);
printf("Register write to disable fec\n");
ax5043WriteReg(0x18,0);
printf("Register write \n");
ax5043WriteReg(0x165,0);
ax5043WriteReg(0x166,0);
ax5043WriteReg(0x167,0x50); // 0x08); // 0x20);
ax5043WriteReg(0x161,0);
ax5043WriteReg(0x162,0x20);
long txRate;
txRate = ax5043ReadReg(0x167) + 256 * ax5043ReadReg(0x166) + 65536 * ax5043ReadReg(0x165);
printf("Tx Rate %x %x %x \n", ax5043ReadReg(0x165), ax5043ReadReg(0x166), ax5043ReadReg(0x167));
long fskDev;
fskDev = ax5043ReadReg(0x163) + 256 * ax5043ReadReg(0x162) + 65536 * ax5043ReadReg(0x161);
ax5043WriteReg(0x37,(uint8_t)((ax5043ReadReg(0x37) + 4))); // Increase FREQA
printf("Tx Rate: %ld FSK Dev: %ld \n", txRate, fskDev);
ax5043WriteReg(0x10,0); // ASK
printf("Modulation: %x \n", (int)ax5043ReadReg(0x10));
printf("Frequency A: 0x%x %x %x %x \n",(int)ax5043ReadReg(0x34),(int)ax5043ReadReg(0x35),(int)ax5043ReadReg(0x36),(int)ax5043ReadReg(0x37));
/* HERE */
/*
int x;
for (x = 0; x < 0x20; x++)
{
printf("Register %x contents: %x\n",x,(int)ax5043ReadReg(x));
}
printf("Register Dump complete");
*/
return;
}
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