main.cpp

00001 #include "radio.h"
00002 #include "LPS22HBSensor.h"
00003 
00004 #ifndef TARGET_DISCO_L072CZ_LRWAN1
00005     #error only_for_L072CZ_discovery
00006 #endif
00007 
00008 #define BW_KHZ              125
00009 #define SPREADING_FACTOR    7
00010 #define CF_HZ               915000000
00011 #define TX_DBM              20
00012 
00013 /*
00014 DevI2C devI2c(I2C_SDA, I2C_SCL);
00015 LPS22HBSensor press_temp(&devI2c);
00016 */
00017 AnalogIn pa0(PA_0);
00018 DigitalIn test_in_pin(PB_5, PullDown);
00019 DigitalOut ext_led(PB_2);
00020 #define EXT_LED_ON      0
00021 #define EXT_LED_OFF     1
00022 
00023 
00024 /**********************************************************************/
00025 volatile bool txDone;
00026 
00027 void txDoneCB()
00028 {
00029     txDone = true;
00030 }
00031 
00032 void rxDoneCB(uint8_t size, float rssi, float snr)
00033 {
00034 }
00035 
00036 const RadioEvents_t rev = {
00037     /* Dio0_top_half */     NULL,
00038     /* TxDone_topHalf */    NULL,
00039     /* TxDone_botHalf */    txDoneCB,
00040     /* TxTimeout  */        NULL,
00041     /* RxDone  */           rxDoneCB,
00042     /* RxTimeout  */        NULL,
00043     /* RxError  */          NULL,
00044     /* FhssChangeChannel  */NULL,
00045     /* CadDone  */          NULL
00046 };
00047 
00048 int main()
00049 {
00050     printf("\r\nreset-tx ");
00051 
00052     Radio::Init(&rev);
00053 
00054     Radio::Standby();
00055     Radio::LoRaModemConfig(BW_KHZ, SPREADING_FACTOR, 1);
00056     Radio::SetChannel(CF_HZ);
00057 
00058     Radio::set_tx_dbm(TX_DBM);
00059 
00060                // preambleLen, fixLen, crcOn, invIQ
00061     Radio::LoRaPacketConfig(8, false, true, false);
00062 
00063     for (;;) {
00064 
00065         uint16_t samp = pa0.read_u16();
00066         if (test_in_pin) {
00067             ext_led = EXT_LED_ON;
00068             printf("continuous-tx\r\n");
00069 #ifdef SX127x_H
00070             Radio::radio.set_opmode(RF_OPMODE_SLEEP);
00071             Radio::fsk.enable(false);
00072             Radio::radio.write_u16(REG_FSK_FDEVMSB, 0);
00073             Radio::radio.write_u16(REG_FSK_PREAMBLEMSB, 0xffff);
00074             Radio::fsk.start_tx(8);
00075 #else
00076     #error tx_carrier
00077 #endif /* SX127x_H*/
00078         }
00079 
00080         ext_led = EXT_LED_ON;
00081         Radio::radio.tx_buf[0] = samp;
00082         samp >>= 8;
00083         Radio::radio.tx_buf[1] = samp;
00084         txDone = false;
00085         Radio::Send(2, 0, 0, 0);   /* begin transmission */
00086 
00087         printf("Sent %04x\r\n", samp);
00088         while (!txDone) {
00089             Radio::service();
00090         }
00091         printf("got-tx-done\r\n");
00092         ext_led = EXT_LED_OFF;
00093 
00094         wait(1.0);  /* throttle sending rate */
00095     }
00096 }
00097