Brunno Oliveira
Lorawan to Pulga with GPS
Dependencies: pulga-lorawan-drv Si1133 BME280
Revision 61:225d19b4b0a9, committed 2021-01-07
- Comitter:
- brunnobbco
- Date:
- Thu Jan 07 13:46:09 2021 +0000
- Parent:
- 60:c4f9e9202fb4
- Commit message:
- Lorawan com GPS
Changed in this revision
| gps.txt | Show annotated file Show diff for this revision Revisions of this file |
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/gps.txt Thu Jan 07 13:46:09 2021 +0000
@@ -0,0 +1,687 @@
+
+#define SYNC1 0xB5
+#define SYNC2 0x62
+
+//GPS DEclaration
+SPI spi_2(P0_5, P0_7, P0_11); // mosi, miso, sclk
+DigitalOut cs(P0_30);
+DigitalOut gps_reset(P1_2);
+DigitalOut gps_int (P0_23);
+DigitalOut gps_DSEL (P0_27);
+
+
+
+
+
+typedef struct
+{
+ uint8_t cls;
+ uint8_t id;
+ uint16_t len; //Length of the payload. Does not include cls, id, or checksum bytes
+ uint8_t *payload;
+ uint8_t checksumA; //Given to us from module. Checked against the rolling calculated A/B checksums.
+ uint8_t checksumB;
+} gps_ubxPacket;
+
+typedef struct
+{
+ uint32_t iTOW=0;
+ uint16_t year=0;
+ uint8_t month=0;
+ uint8_t day=0;
+ uint8_t hour=0;
+ uint8_t min=0;
+ uint8_t sec=0;
+ int8_t valid=0;
+ uint32_t tAcc=0;
+ int32_t nano=0;
+ uint8_t fixtype=0;
+ int8_t flags=0;
+ int8_t flags2=0;
+ uint8_t numSV=0;
+ int32_t lon=0;
+ int32_t lat=0;
+ int32_t height=0;
+ int32_t hMSL=0;
+ uint32_t hAcc=0;
+ uint32_t vAcc=0;
+ int32_t velN=0;
+ int32_t velE=0;
+ int32_t velD=0;
+ int32_t gSpeed=0;
+ int32_t headMot=0;
+ uint32_t sAcc=0;
+ uint32_t headAcc=0;
+ uint16_t pDOP=0;
+ int32_t headVeh;
+ int16_t magDec;
+ uint16_t magAcc;
+
+
+} gps_navPVT;
+
+
+void gps_leBootMsg(){
+
+ #define MAXIMUM_PACKET_SIZE 60
+ int packet_size;
+ uint8_t packet[MAXIMUM_PACKET_SIZE];
+ uint8_t value;
+ int cont;
+ value = spi_2.write(0x00);
+
+ while (value != '$' ){ //wait start boot msg
+ value = spi_2.write(0x00);
+ wait_ms(5);
+ cont++;
+ if (cont > 100){
+ printf("\n no response \n");
+ return;
+ }
+ }
+ packet[0] = value;
+ value = spi_2.write(0x00);
+ for (packet_size = 1 ; packet_size <= MAXIMUM_PACKET_SIZE ;packet_size++) {
+ if (value != '\n' ){
+ packet [packet_size]= value;
+ value = spi_2.write(0x00);
+ }
+ else {
+ //lora_send_packet (packet , (uint8_t) packet_size+1); // manda atraves do lora a mensagem de boot do gps
+ printf("Boot msg: %s \n", packet);
+ return;
+ }
+
+ }
+
+}
+
+void gps_le_envia_linha(){
+
+ uint8_t packet[150];
+ uint8_t value;
+
+ for (int i=0;i < 149; i++){
+ if (value == '\n'){
+ //lora_send_packet (packet , (uint8_t) i);
+ return;
+ }
+ else packet [i] =value;
+ }
+ //lora_send_packet (packet , (uint8_t) 99);
+
+}
+
+
+gps_ubxPacket gps_calcula_check(gps_ubxPacket Packet) {
+
+ uint8_t Buffer[Packet.len + 4];
+ uint8_t CK_A=0;
+ uint8_t CK_B=0;
+
+ Buffer[0]= Packet.cls;
+ Buffer[1]= Packet.id;
+ Buffer[2]= Packet.len & 0xFF;
+ Buffer[3]= (Packet.len >> 8)& 0xFF;;
+
+ //send_packet (Buffer, (uint8_t) 4 );
+
+ for (uint16_t i = 0; i < Packet.len; i++) {
+ Buffer [i+4] = Packet.payload[i] ;
+ }
+
+ //send_packet (Buffer, (uint8_t) Packet.len + 4 );
+
+ for(int i=0 ; i < Packet.len + 4 ; i++) {
+ CK_A = CK_A + Buffer[i];
+ CK_B = CK_B + CK_A;
+ CK_A = CK_A & 0xFF;
+ CK_B = CK_B & 0xFF;
+ //uint8_t packet_check[5] ={Buffer[i],(uint8_t) (i+1),CK_A,CK_B,'#'};
+// send_packet (packet_check , (uint8_t) 5);
+ }
+
+
+// uint8_t packet_check[2] ={CK_A, CK_B};
+// send_packet (packet_check , (uint8_t) 2);
+
+ Packet.checksumA = CK_A;
+ Packet.checksumB = CK_B;
+
+ return Packet;
+
+}
+
+void send_gps_packet(gps_ubxPacket packet){
+
+ spi_2.write(SYNC1);
+ spi_2.write(SYNC2);
+ spi_2.write(packet.cls);
+ spi_2.write(packet.id);
+ spi_2.write(packet.len & 0xFF);
+ spi_2.write((packet.len >> 8)& 0xFF);
+
+ for (uint16_t i = 0; i < packet.len; i++) {
+ spi_2.write(packet.payload[i]);
+ }
+ spi_2.write(packet.checksumA);
+ spi_2.write(packet.checksumB);
+
+ //=============imprime resposta
+ wait_ms(50);
+ gps_le_envia_linha();
+ gps_le_envia_linha();
+
+}
+
+gps_navPVT le_nav_pvt () {
+
+ gps_navPVT Pac;
+
+ char state = 0;
+ int cont =0;
+ int numb=0;
+
+ while (1){ //começou mensagem
+ if (cont > 100) {
+ // BMX160_read_acc();
+ return Pac;
+ }
+ if (state == 0 ){
+
+ if ( spi_2.write(0x00) == 0xB5){
+ state =1;
+ }
+ else {
+ cont++;
+ wait_ms(40);
+ }
+
+ }
+ else if (state == 1){ // read 0xb5
+ if (spi_2.write(0x00) == 0x62){
+ state =2;
+ //wait_ms(30);
+ }
+ else state =0;
+ }
+ else if (state == 2) {// read 0xb5 0x62
+ if (spi_2.write(0x00) == 0x01){
+ //printf("le_nav_pvt going to state 3");
+ state =3;
+ //wait_ms(30);
+ }
+ else state =0;
+ }
+ else if (state == 3) {// read 0xb5 0x62 0x01
+ if (spi_2.write(0x00) == 0x07){
+ state =4;
+ //printf("le_nav_pvt going to state 4");
+ //wait_ms(30);
+ }
+ else state =0;
+ }
+ else if (state == 4) {// read 0xb5 0x62 0x01 0x07
+ if (spi_2.write(0x00) == 0x5c){
+ state =5;
+ //printf("le_nav_pvt going to state 5");
+ //wait_ms(30);
+ }
+ else state =0;
+ }
+ else if (state == 5) {// read 0xb5 0x62 0x01 0x07 0x5c
+ if (spi_2.write(0x00) == 0x00){
+ state =6;
+ //printf("le_nav_pvt going to state 6");
+ //wait_ms(30);
+ }
+ else state =0;
+ }
+ else if (state == 6){ // read 0xb5 0x62 0x01 0x07 0x5c 0x00
+ uint8_t value1,value2,value3,value4;
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.iTOW = (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ Pac.year = (value2 << 8) + value1;
+
+ Pac.month = 0xff & spi_2.write(0x00);
+ Pac.day = 0xff & spi_2.write(0x00);
+ Pac.hour = 0xff & spi_2.write(0x00);
+ Pac.min = 0xff & spi_2.write(0x00);
+ Pac.sec = 0xff & spi_2.write(0x00);
+ Pac.valid = 0xff & spi_2.write(0x00);
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.tAcc = (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.nano = (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+
+ Pac.fixtype = 0xff & spi_2.write(0x00);
+ Pac.flags = 0xff & spi_2.write(0x00);
+ Pac.flags2 = 0xff & spi_2.write(0x00);
+ Pac.numSV = 0xff & spi_2.write(0x00);
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.lon = (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+ lon= (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+ //printf("Long Data %d \n ", lon);
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.lat = (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+ lat = (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+ //printf("Lat Data %d", lat);
+
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.height = (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.hMSL = (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.hAcc = (value4 << 24) + (value3 <<16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.vAcc = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.velN = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.velE = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.velD = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.gSpeed = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.headMot = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.sAcc = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.headAcc = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ Pac.pDOP = (value2 << 8) + value1;
+
+ for (int i=0; i < 6; i++)spi_2.write(0x00);
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.headAcc = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ value3 = 0xff & spi_2.write(0x00);
+ value4 = 0xff & spi_2.write(0x00);
+ Pac.headAcc = (value4 << 24) + (value3 << 16) + (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ Pac.magDec = (value2 << 8) + value1;
+
+ value1 = 0xff & spi_2.write(0x00);
+ value2 = 0xff & spi_2.write(0x00);
+ Pac.magAcc = (value2 << 8) + value1;
+
+
+ return Pac;
+ }
+ }
+ wait_ms(100);
+}
+
+void send_nav_pvt (){
+ uint8_t packet_nav_pvt[] = { 0xB5, 0x62, 0x01, 0x07, 0x00, 0x00, 0x08, 0x19};
+
+ //=============envia pacote nav pvt
+ for ( int i=0; i< sizeof(packet_nav_pvt) ; i++){
+ spi_2.write(packet_nav_pvt[i]);
+ wait_ms(5);
+ }
+
+ gps_navPVT Data = le_nav_pvt();
+
+ uint8_t packet [100];
+
+ packet [0]= (Data.lon >> 24)& 0xff;
+ packet [1]= (Data.lon >> 16) & 0xff ;
+ packet [2]= (Data.lon >> 8) & 0xff;
+ packet [3]= Data.lon & 0xff;
+ packet [4]= (Data.lat >> 24)& 0xff;
+ packet [5]= (Data.lat >> 16) & 0xff ;
+ packet [6]= (Data.lat >> 8) & 0xff;
+ packet [7]= Data.lat & 0xff;
+ packet [8]= (Data.hMSL >> 24)& 0xff;
+ packet [9]= (Data.hMSL >> 16) & 0xff ;
+ packet [10]= (Data.hMSL >> 8) & 0xff;
+ packet [11]= Data.hMSL & 0xff;
+
+ if (Data.lon !=0 || Data.lat !=0 ){
+ //lora_send_packet (packet , (uint8_t) 12);
+ }
+}
+
+void send_gps_data(uint8_t *packet, uint8_t size){
+ uint8_t packet_rec[size];
+ for ( int i=0; i< size ; i++){
+ spi_2.write(packet[i]);
+
+ //wait_ms(5);
+ }
+ //send_packet (packet_rec ,size);
+}
+
+/*
+void wait_packet (uint8_t *header) {
+
+ char state = 0;
+ int cont =0;
+
+ while (1){ //começou mensagem
+ if (cont > 250) {
+ //led2=!led2;
+ return;
+ }
+ if (state == 0 ){
+ if (spi_2.write(0x00) == header[0])
+ state =1;
+ else {
+ cont++;
+ wait_ms(10);
+ }
+
+
+ }
+ else if (state == 1){ // read 0xb5
+ if (spi_2.write(0x00) == header[1]){
+ state =2;
+ }
+ else state =0;
+ }
+ else if (state == 2) {// read 0xb5 0x62
+ if (spi_2.write(0x00) == header[2]){
+ state =3;
+ }
+ else state =0;
+ }
+ else if (state == 3) {// read 0xb5 0x62 0x06
+ if (spi_2.write(0x00) == header[3]){
+ state =4;
+ }
+ else state =0;
+ }
+ else if (state == 4) {// read 0xb5 0x62 0x06 0x013
+
+ uint8_t packet[100];
+ uint8_t value = spi_2.write(0x00);
+ uint8_t packet_size;
+
+ for (packet_size = 0 ; packet_size < 100 ;packet_size++) {
+ if (value != '\n' ){
+ packet [packet_size]= value;
+ value = spi_2.write(0x00);
+ }
+ else {
+ lora_send_packet (packet , (uint8_t) packet_size+1);
+ //packet_size = MAXIMUM_PACKET_SIZE +1;
+ return;
+ }
+ }
+
+ }
+ }
+}*/
+
+void wait_packet_byte (uint8_t *header, uint8_t byte) {
+
+ char state = 0;
+ int cont =0;
+
+ while (1){ //começou mensagem
+ if (cont > 250) {
+ //led2=!led2;
+ return;
+ }
+ if (state == 0 ){
+ if (spi_2.write(0x00) == header[0])
+ state =1;
+ else {
+ cont++;
+ wait_ms(10);
+ }
+
+
+ }
+ else if (state == 1){ // read 0xb5
+ if (spi_2.write(0x00) == header[1]){
+ state =2;
+ }
+ else state =0;
+ }
+ else if (state == 2) {// read 0xb5 0x62
+ if (spi_2.write(0x00) == header[2]){
+ state =3;
+ }
+ else state =0;
+ }
+ else if (state == 3) {// read 0xb5 0x62 0x06
+ if (spi_2.write(0x00) == header[3]){
+ state =4;
+ }
+ else state =0;
+ }
+ else if (state == 4) {// read 0xb5 0x62 0x06 0x013
+
+ if (byte == 0){//mostrar todo o pacote
+ uint8_t packet[100];
+ uint8_t value = spi_2.write(0x00);
+ uint8_t packet_size;
+
+ for (packet_size = 0 ; packet_size < 100 ;packet_size++) {
+ if (value != '\n' ){
+ packet [packet_size]= value;
+ value = spi_2.write(0x00);
+ }
+ else {
+ //lora_send_packet (packet , (uint8_t) packet_size+1);
+ //packet_size = MAXIMUM_PACKET_SIZE +1;
+ return;
+ }
+ }//fim for
+ }//fim if byte
+
+ else {//mostrar apenas um byte
+
+
+ for (int i = 0 ; i < byte-1 ;i++)
+ spi_2.write(0x00);
+
+ uint8_t packet[]={(uint8_t)99,(uint8_t)spi_2.write(0x00)};
+ //lora_send_packet (packet , (uint8_t) 2);
+
+
+ for (int i = 0 ; i < 100 ;i++)
+ if (spi_2.write(0x00) == '\n')
+ return;
+
+ return;
+
+ }//fim else byte
+
+ }
+
+ }
+
+}
+
+
+void gps_wait_same_packet () {
+
+ char state = 0;
+ int cont =0;
+
+ while (1){ //começou mensagem
+ if (cont > 250) {
+ //led2=!led2;
+ return;
+ }
+ if (state == 0 ){
+ if (spi_2.write(0x00) == 0xb5)
+ state =1;
+ else {
+ cont++;
+ wait_ms(10);
+ }
+
+
+ }
+ else if (state == 1){ // read 0xb5
+ if (spi_2.write(0x00) == 0x62){
+ state =2;
+ }
+ else state =0;
+ }
+ else if (state == 2){
+ uint8_t packet[200];
+ uint8_t value = spi_2.write(0x00);
+ uint8_t packet_size;
+
+ for (packet_size = 0 ; packet_size < 200 ;packet_size++) {
+ if (value != '\n' ){
+ packet [packet_size]= value;
+ value = spi_2.write(0x00);
+ }
+ else {
+ //lora_send_packet (packet , (uint8_t) packet_size+1);
+ //packet_size = MAXIMUM_PACKET_SIZE +1;
+ return;
+ }
+
+ }//fim for
+ // lora_send_packet (packet , 200);
+ }
+ }
+}
+
+void gps_config_gnss (){
+
+ uint8_t packet_cfg_gnss[] = {
+ 0xB5, 0x62, // Header
+ 0x03, 0x3E, // Class ID = CFG, Msg ID = UBX-CFG-GNSS
+ 0x3C, 0x00, // Payload Length = 60 bytes
+ 0x00, 0x00, 0x20, 0x07, // msgVer=0, numTrkChHw=32, numTrkChUse=32, numConfigBlocks=7
+ 0x00, 0x08, 0x10, 0x00, 0x01, 0x00, 0x01, 0x01, // gnssId=0 (GPS), resTrkCh=8, maxTrkCh=12, ENABLE
+ 0x01, 0x01, 0x03, 0x00, 0x01, 0x00, 0x01, 0x00, // gnssId=1 (SBAS), resTrkCh=1, maxTrkCh=2, ENABLE
+ 0x02, 0x04, 0x0A, 0x00, 0x01, 0x00, 0x01, 0x00, // gnssId=2 (Galileo), resTrkCh=4, maxTrkCh=10, ENABLE
+ 0x03, 0x04, 0x08, 0x00, 0x00, 0x00, 0x01, 0x00, // gnssId=3 (BeiDou), resTrkCh=4, maxTrkCh=8, DISABLE
+ 0x04, 0x00, 0x08, 0x00, 0x00, 0x00, 0x01, 0x00, // gnssId=4 (IMES), resTrkCh=0, maxTrkCh=8, DISABLE
+ 0x05, 0x00, 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, // gnssId=5 (QZSS), resTrkCh=0, maxTrkCh=3, DISABLE
+ 0x06, 0x04, 0x08, 0x00, 0x01, 0x00, 0x01, 0x00, // gnssId=6 (GLONASS), resTrkCh=4, maxTrkCh=8, ENABLE
+ 0x00, 0x00 //checksums A & B
+ };
+ uint8_t pos_ck = sizeof(packet_cfg_gnss)-2;
+ printf("gnss config finish");
+ uint8_t ubxi;
+ //calcula checksum
+ for (ubxi=2; ubxi<pos_ck ; ubxi++) {
+ packet_cfg_gnss[pos_ck] = packet_cfg_gnss[pos_ck] + packet_cfg_gnss[ubxi];
+ packet_cfg_gnss[pos_ck+1] = packet_cfg_gnss[pos_ck+1] + packet_cfg_gnss[pos_ck];
+ }
+
+}
+
+
+void gps_print_local (){
+ uint8_t packet_nav_pvt[] = { 0xB5, 0x62, 0x01, 0x07, 0x00, 0x00, 0x08, 0x19};
+
+ //=============envia pacote nav pvt
+ for ( int i=0; i< sizeof(packet_nav_pvt) ; i++){
+ spi_2.write(packet_nav_pvt[i]);
+ wait_ms(20);
+ }
+
+ gps_navPVT Data = le_nav_pvt();
+
+ //printf ("gps lat=%d lon=%d \n",Data.lat ,Data.lon );
+ //lat=Data.lat;
+ //lon=Data.lon;
+}
+
+void gps_config (){
+ gps_DSEL = 0;
+ //spi gps configuration
+ spi_2.format(8,0);
+ spi_2.frequency(1000000); //1MHz
+ cs=1;
+ wait(0.1);
+ cs=0;
+ wait(0.1);
+
+ gps_int = 0;
+
+ //gps reset
+ gps_reset = 1;
+ wait_ms(50);
+ //gps_reset = 0;
+ //wait(1.5);
+}
+
--- a/main.cpp Mon Nov 30 19:25:11 2020 +0000
+++ b/main.cpp Thu Jan 07 13:46:09 2021 +0000
@@ -31,7 +31,7 @@
// Max payload size can be LORAMAC_PHY_MAXPAYLOAD.
// This example only communicates with much shorter messages (<30 bytes).
// If longer messages are used, these buffers must be changed accordingly.
-uint8_t tx_buffer[30];
+uint8_t tx_buffer[256];
uint8_t rx_buffer[30];
/*
@@ -102,9 +102,31 @@
mbed::DigitalOut _alive_led(P1_13, 0);
mbed::DigitalOut _actuated_led(P1_14,1);
+int lat=0;
+int lon=0;
+int latitude=0;
+int longitude=0;
+
+#include "gps.txt"
+
+void GPS_Read(void)
+{
+ gps_print_local();
+ printf ("gps longitude=%d \n",lon);
+ printf ("gps latitude=%d \n",lat);
+ if(lat!=0 && lon!=0){
+ longitude=lon;
+ latitude=lat;
+// led1 = !led1;
+ }
+ }
int main(void)
{
+ gps_config();
+ gps_leBootMsg();
+ gps_config_gnss ();
+
// setup tracing
setup_trace();
@@ -167,8 +189,9 @@
uint16_t packet_len;
int16_t retcode;
int32_t sensor_value;
+ gps_print_local();
- packet_len = sprintf((char *) tx_buffer, "Sensor Value is 10.0\n");
+ packet_len = sprintf((char *) tx_buffer, "lon = %d and lat = %d\n", lon, lat);
retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, tx_buffer, packet_len,
MSG_UNCONFIRMED_FLAG);
@@ -186,6 +209,8 @@
return;
}
+ printf ("gps longitude=%d \n",lon);
+ printf ("gps latitude=%d \n",lat);
printf("\r\n %d bytes scheduled for transmission \r\n", retcode);
memset(tx_buffer, 0, sizeof(tx_buffer));
}