CaryCoders / Mbed 2 deprecated demo_SX1276_standalone

standalone sx1276 demo program

Dependencies:   SX1276Lib mbed

Fork of SX1276_GPS by CaryCoders

main.cpp@32:a2472bbe7c92, 2015-07-29 (annotated)

Committer:
ftagius
Date:
Wed Jul 29 12:14:42 2015 +0000
Revision:
32:a2472bbe7c92
Parent:
31:2c813f321db7
Child:
33:319cbac3b6eb
cleanup

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wim 0:88d87b1c1f8b 1 #include "mbed.h"
vtraveller 25:24654d08a99a 2 #include "lcdadafruit.h"
ftagius 29:0ea07cc7124b 3 #include "sx1276-hal.h"
ftagius 29:0ea07cc7124b 4 #include "GPS.h"
ftagius 29:0ea07cc7124b 5 #include "main.h"
ftagius 29:0ea07cc7124b 6 #include "debug.h"
ftagius 29:0ea07cc7124b 7 #include "serial_api.h"
ftagius 32:a2472bbe7c92 8 #include "datetime.h"
ftagius 32:a2472bbe7c92 9 #include "time.h"
ftagius 32:a2472bbe7c92 10 #include <string>
wim 0:88d87b1c1f8b 11
ftagius 29:0ea07cc7124b 12
ftagius 29:0ea07cc7124b 13 #define USE_MODEM_LORA 1
ftagius 29:0ea07cc7124b 14 //#define RF_FREQUENCY 868000000 // Hz
ftagius 29:0ea07cc7124b 15 //#define RF_FREQUENCY 880030000
ftagius 31:2c813f321db7 16 #define RF_FREQUENCY 915000000.0 // Hz
ftagius 31:2c813f321db7 17 //#define RF_FREQUENCY 413000000.0 // Hz
ftagius 32:a2472bbe7c92 18
ftagius 29:0ea07cc7124b 19
ftagius 29:0ea07cc7124b 20 //#define BUFFER_SIZE 64 // Define the payload size here
ftagius 29:0ea07cc7124b 21
ftagius 29:0ea07cc7124b 22 #if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
ftagius 32:a2472bbe7c92 23 //DigitalOut led(LED2);
ftagius 32:a2472bbe7c92 24 DigitalOut led(LED_RED);
ftagius 29:0ea07cc7124b 25 #else
ftagius 29:0ea07cc7124b 26 DigitalOut led(LED1);
ftagius 29:0ea07cc7124b 27 #endif
ftagius 29:0ea07cc7124b 28 Serial pc(USBTX, USBRX);
ftagius 29:0ea07cc7124b 29
ftagius 29:0ea07cc7124b 30 float Frequency = RF_FREQUENCY;
ftagius 32:a2472bbe7c92 31 float distance = -1;
ftagius 32:a2472bbe7c92 32 float r_latitude = 0;
ftagius 32:a2472bbe7c92 33 float r_longitude = 0;
ftagius 29:0ea07cc7124b 34 int TxPower = TX_OUTPUT_POWER;
ftagius 29:0ea07cc7124b 35 int Bandwidth = LORA_BANDWIDTH;
ftagius 29:0ea07cc7124b 36 int SpreadingFactor = LORA_SPREADING_FACTOR;
ftagius 29:0ea07cc7124b 37 int CodingRate = LORA_CODINGRATE;
ftagius 32:a2472bbe7c92 38 struct tm Clock;
ftagius 29:0ea07cc7124b 39
ftagius 29:0ea07cc7124b 40 /*
ftagius 29:0ea07cc7124b 41 * Global variables declarations
ftagius 29:0ea07cc7124b 42 */
ftagius 29:0ea07cc7124b 43 typedef RadioState States_t;
ftagius 29:0ea07cc7124b 44 volatile States_t State = LOWPOWER;
ftagius 29:0ea07cc7124b 45
ftagius 29:0ea07cc7124b 46 SX1276MB1xAS Radio( OnTxDone, OnTxTimeout, OnRxDone, OnRxTimeout, OnRxError, NULL, NULL );
ftagius 29:0ea07cc7124b 47 // for hand wired I2C cI2C(PTC9, PTC8);
ftagius 29:0ea07cc7124b 48 I2C cI2C(PTC9, PTC8);
ftagius 29:0ea07cc7124b 49 // for stacked shield I2C cI2C(PTC2, PTC1);
ftagius 29:0ea07cc7124b 50 //I2C cI2C(PTC2, PTC1);
ftagius 29:0ea07cc7124b 51 LCDadafruit cLCD(cI2C);
ftagius 29:0ea07cc7124b 52 GPS gpsd(PTE0,PTE1);
ftagius 29:0ea07cc7124b 53
ftagius 29:0ea07cc7124b 54 // for other board GPS gpsd(PTE20, PTE21);
ftagius 29:0ea07cc7124b 55
ftagius 29:0ea07cc7124b 56 uint8_t PingMsg[256];
ftagius 29:0ea07cc7124b 57 uint8_t PongMsg[256];
ftagius 29:0ea07cc7124b 58 uint8_t HelloMsg[256];
ftagius 29:0ea07cc7124b 59 char pcbuf[PCBUF_SIZE];
ftagius 29:0ea07cc7124b 60 uint16_t BufferSize = BUFFER_SIZE;
ftagius 29:0ea07cc7124b 61 uint8_t BufferTx[BUFFER_SIZE];
ftagius 29:0ea07cc7124b 62 uint8_t BufferRx[BUFFER_SIZE];
ftagius 29:0ea07cc7124b 63 int16_t RssiValue = 0.0;
ftagius 29:0ea07cc7124b 64 int8_t SnrValue = 0.0;
ftagius 29:0ea07cc7124b 65 int txLen = 0;
ftagius 29:0ea07cc7124b 66 int pkt_count = 0;
ftagius 29:0ea07cc7124b 67 int max_pkts = 20;
ftagius 29:0ea07cc7124b 68 int pkt_data[20];
ftagius 29:0ea07cc7124b 69 int per = 0;
ftagius 32:a2472bbe7c92 70 int tx_rate_us = 100000; // 1 second
ftagius 29:0ea07cc7124b 71 app_e app = APP_NONE;
ftagius 29:0ea07cc7124b 72 bool isMaster = true;
ftagius 29:0ea07cc7124b 73 bool AlwaysMaster = false;
ftagius 29:0ea07cc7124b 74 bool AlwaysSlave = false;
ftagius 29:0ea07cc7124b 75 bool ackRcvd = true;
ftagius 29:0ea07cc7124b 76 bool rxTimeout = false;
ftagius 29:0ea07cc7124b 77 bool gpsEnabled = true;
ftagius 32:a2472bbe7c92 78 InterruptIn PPS(PTA1); //pps IRQ
ftagius 32:a2472bbe7c92 79 Ticker usec_tick;
ftagius 32:a2472bbe7c92 80
ftagius 32:a2472bbe7c92 81 void tx_pkt() {
ftagius 32:a2472bbe7c92 82 led = !led;
ftagius 32:a2472bbe7c92 83 BufferSize=strlen((char *)BufferTx);
ftagius 32:a2472bbe7c92 84 // printf("Buffersize = %d\r\n",BufferSize);
ftagius 32:a2472bbe7c92 85 Radio.Send( BufferTx, BufferSize );
ftagius 32:a2472bbe7c92 86 //Radio.Rx( RX_TIMEOUT_VALUE / 1 );
ftagius 32:a2472bbe7c92 87 }
ftagius 29:0ea07cc7124b 88
ftagius 32:a2472bbe7c92 89 void ppsSync()
ftagius 29:0ea07cc7124b 90 {
ftagius 32:a2472bbe7c92 91 static int pps_count=0;
ftagius 32:a2472bbe7c92 92
ftagius 32:a2472bbe7c92 93 ++pps_count;
ftagius 32:a2472bbe7c92 94 if (pps_count == 1)
ftagius 29:0ea07cc7124b 95 {
ftagius 32:a2472bbe7c92 96 // detach the timer
ftagius 32:a2472bbe7c92 97 usec_tick.detach();
ftagius 32:a2472bbe7c92 98 printf("call attach\r\n");
ftagius 32:a2472bbe7c92 99 //wait_ms(500);
ftagius 32:a2472bbe7c92 100 usec_tick.attach_us(&tx_pkt, tx_rate_us);
ftagius 29:0ea07cc7124b 101 }
ftagius 29:0ea07cc7124b 102 else
ftagius 29:0ea07cc7124b 103 {
ftagius 32:a2472bbe7c92 104 if (pps_count > 10)
ftagius 32:a2472bbe7c92 105 {
ftagius 32:a2472bbe7c92 106 pps_count = 1;
ftagius 32:a2472bbe7c92 107 }
ftagius 29:0ea07cc7124b 108 }
ftagius 29:0ea07cc7124b 109
ftagius 32:a2472bbe7c92 110 //printf("got a pps\r\n");
ftagius 32:a2472bbe7c92 111 //ShowDateTime();
ftagius 32:a2472bbe7c92 112
ftagius 29:0ea07cc7124b 113 }
vtraveller 3:ed09f95739df 114 int main()
vtraveller 21:c44cfd3259c0 115 {
ftagius 29:0ea07cc7124b 116
ftagius 29:0ea07cc7124b 117 int i;
ftagius 32:a2472bbe7c92 118 Timer refresh_Timer; //sets up a timer for use in loop; how often do we print GPS info?
ftagius 32:a2472bbe7c92 119 const int refresh_Time = 1000; //refresh time in ms
ftagius 32:a2472bbe7c92 120 bool gpsFix=false;
ftagius 32:a2472bbe7c92 121 gps_setup();
ftagius 29:0ea07cc7124b 122 pc.baud(9600);
vtraveller 21:c44cfd3259c0 123 cI2C.frequency(400000); // I2C can handle two different frequencies - switch to high speed if asked
ftagius 29:0ea07cc7124b 124 cLCD.clear();
ftagius 29:0ea07cc7124b 125 cLCD.home();
ftagius 29:0ea07cc7124b 126 cLCD.setCursor(0,0);
ftagius 29:0ea07cc7124b 127 cLCD.printf(" HOMER ");
ftagius 29:0ea07cc7124b 128 cLCD.setCursor(0,1);
ftagius 29:0ea07cc7124b 129 cLCD.printf(" DOH! ");
ftagius 29:0ea07cc7124b 130
ftagius 29:0ea07cc7124b 131 rxTimeout = false;
ftagius 29:0ea07cc7124b 132 // PTD1 (the SCK pin for the one SPI interface onboard the KL25z) is actually an output to the Blue LED.
ftagius 29:0ea07cc7124b 133 // the lora shield drives SCK, which turns on the blue led. use PTC5 instead of the default PTD1 for SCK
ftagius 29:0ea07cc7124b 134
ftagius 29:0ea07cc7124b 135 if (RADIO_INSTALLED)
ftagius 29:0ea07cc7124b 136 debug( " SX1276 Test Applications \r\n\n" );
ftagius 29:0ea07cc7124b 137 led = 1;
ftagius 29:0ea07cc7124b 138
ftagius 29:0ea07cc7124b 139 // init pkt_data array to 0
ftagius 29:0ea07cc7124b 140 for (i=0;i<pkt_count;i++)
ftagius 29:0ea07cc7124b 141 pkt_data[pkt_count]=0;
ftagius 29:0ea07cc7124b 142
ftagius 29:0ea07cc7124b 143 // verify the connection with the board
ftagius 29:0ea07cc7124b 144 if (RADIO_INSTALLED)
ftagius 29:0ea07cc7124b 145 {
ftagius 29:0ea07cc7124b 146
ftagius 29:0ea07cc7124b 147 while( Radio.Read( REG_VERSION ) == 0x00 )
ftagius 29:0ea07cc7124b 148 {
ftagius 29:0ea07cc7124b 149 debug( "Radio could not be detected!\r\n", NULL );
ftagius 29:0ea07cc7124b 150 wait( 1 );
ftagius 29:0ea07cc7124b 151 }
ftagius 29:0ea07cc7124b 152
ftagius 29:0ea07cc7124b 153
ftagius 29:0ea07cc7124b 154 debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1276MB1LAS ) ) , "> Board Type: SX1276MB1LAS < \r\n" );
ftagius 29:0ea07cc7124b 155 debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1276MB1MAS ) ) , "> Board Type: SX1276MB1MAS < \r\n" );
ftagius 29:0ea07cc7124b 156 Radio.SetChannel( Frequency );
ftagius 29:0ea07cc7124b 157 debug_if( !LORA_FHSS_ENABLED, "> LORA Mode < \r\n");
ftagius 29:0ea07cc7124b 158 configRxTx();
ftagius 29:0ea07cc7124b 159
ftagius 29:0ea07cc7124b 160 //print_status();
ftagius 29:0ea07cc7124b 161 debug_if( DEBUG_MESSAGE, "Starting Application loop\r\n" );
ftagius 29:0ea07cc7124b 162 wait(1);
ftagius 29:0ea07cc7124b 163
ftagius 29:0ea07cc7124b 164 // led = 0;
ftagius 29:0ea07cc7124b 165
ftagius 29:0ea07cc7124b 166 strcat((char *)PingMsg,"PING");
ftagius 29:0ea07cc7124b 167 strcat((char *)PongMsg,"PONG");
ftagius 29:0ea07cc7124b 168 strcat((char *)HelloMsg,"HELLO_7");
ftagius 29:0ea07cc7124b 169
ftagius 29:0ea07cc7124b 170 Radio.Rx( RX_TIMEOUT_VALUE );
ftagius 29:0ea07cc7124b 171 Radio.Tx( TX_TIMEOUT_VALUE );
ftagius 29:0ea07cc7124b 172
ftagius 29:0ea07cc7124b 173 app = APP_HELLO;
ftagius 29:0ea07cc7124b 174 }
ftagius 29:0ea07cc7124b 175 else
ftagius 29:0ea07cc7124b 176 {
ftagius 29:0ea07cc7124b 177 app = APP_GPS;
ftagius 29:0ea07cc7124b 178 pc.printf("Starting GPS App\r\n");
ftagius 29:0ea07cc7124b 179 }
ftagius 29:0ea07cc7124b 180
ftagius 32:a2472bbe7c92 181 refresh_Timer.start(); //starts the clock on the timer
ftagius 32:a2472bbe7c92 182 usec_tick.attach_us(&tx_pkt, tx_rate_us); // attach a timer to periodically call tx. this timer will be restarted in ppsSync to synronize timer accross systems
ftagius 32:a2472bbe7c92 183 PPS.rise(&ppsSync); // call ppsSync when the PPS irq is detected
ftagius 32:a2472bbe7c92 184
ftagius 29:0ea07cc7124b 185 while( 1 )
ftagius 29:0ea07cc7124b 186 {
ftagius 32:a2472bbe7c92 187 check_gps();
ftagius 32:a2472bbe7c92 188 if (refresh_Timer.read_ms() >= refresh_Time)
ftagius 32:a2472bbe7c92 189 {
ftagius 32:a2472bbe7c92 190 // printf("reset timer popped\r\n");
ftagius 32:a2472bbe7c92 191 if (gpsd.fix) {
ftagius 32:a2472bbe7c92 192 // got a gps fix
ftagius 32:a2472bbe7c92 193 if (gpsFix == false)
ftagius 32:a2472bbe7c92 194 {
ftagius 32:a2472bbe7c92 195 // first time fix obtained
ftagius 32:a2472bbe7c92 196 gpsFix = true;
ftagius 32:a2472bbe7c92 197 // set the rtc with the latest gps time
ftagius 32:a2472bbe7c92 198
ftagius 32:a2472bbe7c92 199 pc.printf("GPS fix obtained on %02d/%02d/20%02d_%02d:%02d:%02d (UTC)\r\n",gpsd.month,gpsd.day,gpsd.year,gpsd.hour,gpsd.minute,gpsd.seconds);
ftagius 32:a2472bbe7c92 200 // update rtc with the latest gps time stamp
ftagius 32:a2472bbe7c92 201 SetDateTime(gpsd.year+2000,
ftagius 32:a2472bbe7c92 202 gpsd.month,
ftagius 32:a2472bbe7c92 203 gpsd.day,
ftagius 32:a2472bbe7c92 204 gpsd.hour,
ftagius 32:a2472bbe7c92 205 gpsd.minute,
ftagius 32:a2472bbe7c92 206 gpsd.seconds);
ftagius 32:a2472bbe7c92 207 }
ftagius 32:a2472bbe7c92 208 #if 0
ftagius 32:a2472bbe7c92 209 else
ftagius 32:a2472bbe7c92 210 {
ftagius 32:a2472bbe7c92 211 printf("radfta - ");
ftagius 32:a2472bbe7c92 212 ShowDateTime();
ftagius 32:a2472bbe7c92 213 // pc.printf("GPS %02d/%02d/20%02d_%02d:%02d:%02d (UTC)\r\n",gpsd.month,gpsd.day,gpsd.year,gpsd.hour,gpsd.minute,gpsd.seconds);
ftagius 32:a2472bbe7c92 214 }
ftagius 32:a2472bbe7c92 215 #endif
ftagius 32:a2472bbe7c92 216
ftagius 32:a2472bbe7c92 217 }
ftagius 32:a2472bbe7c92 218 else
ftagius 32:a2472bbe7c92 219 {
ftagius 32:a2472bbe7c92 220 gpsFix = false;
ftagius 32:a2472bbe7c92 221 cLCD.setCursor(0,1);
ftagius 32:a2472bbe7c92 222 cLCD.printf("No GPS. per:%d ",per);
ftagius 32:a2472bbe7c92 223 //pc.printf("Waiting for GPS FIX\r\n");
ftagius 32:a2472bbe7c92 224
ftagius 32:a2472bbe7c92 225 }
ftagius 32:a2472bbe7c92 226
ftagius 32:a2472bbe7c92 227 refresh_Timer.reset();
ftagius 32:a2472bbe7c92 228 }
ftagius 32:a2472bbe7c92 229
ftagius 29:0ea07cc7124b 230 switch (app) {
ftagius 29:0ea07cc7124b 231 case APP_PING:
ftagius 29:0ea07cc7124b 232 start_ping_pong();
ftagius 29:0ea07cc7124b 233 break;
ftagius 29:0ea07cc7124b 234 case APP_CHAT:
ftagius 29:0ea07cc7124b 235 console_chat();
ftagius 29:0ea07cc7124b 236 break;
ftagius 29:0ea07cc7124b 237 case APP_GPS:
ftagius 29:0ea07cc7124b 238 check_gps();
ftagius 29:0ea07cc7124b 239 break;
ftagius 29:0ea07cc7124b 240 case APP_HELLO:
ftagius 29:0ea07cc7124b 241 start_hello();
ftagius 29:0ea07cc7124b 242 break;
ftagius 29:0ea07cc7124b 243 case APP_CONSOLE:
ftagius 29:0ea07cc7124b 244 // printf("-chat-> x");
ftagius 29:0ea07cc7124b 245 fflush(stdout);
ftagius 29:0ea07cc7124b 246 console();
ftagius 29:0ea07cc7124b 247 break;
ftagius 29:0ea07cc7124b 248 default:
ftagius 29:0ea07cc7124b 249 printf("unknown app %d\r\n", app);
ftagius 29:0ea07cc7124b 250 break;
ftagius 29:0ea07cc7124b 251 } // ...switch (app)
ftagius 29:0ea07cc7124b 252
ftagius 29:0ea07cc7124b 253 }
ftagius 29:0ea07cc7124b 254
wim 0:88d87b1c1f8b 255 }