wayne roberts / Mbed OS LoRaWAN_singlechannel_endnode

end node on synchronous star LoRa network.

Dependencies:   SX127x sx12xx_hal TSL2561

radio chip selection

Radio chip driver is not included, allowing choice of radio device.
If you're using SX1272 or SX1276, then import sx127x driver into your program.
if you're using SX1261 or SX1262, then import sx126x driver into your program.
if you're using SX1280, then import sx1280 driver into your program.
If you're using NAmote72 or Murata discovery, then you must import only sx127x driver.

This project for use with LoRaWAN_singlechannel_gateway project.

Alternately gateway running on raspberry pi can be used as gateway.

LoRaWAN on single radio channel

Network description is at gateway project page. Synchronous star network.

Hardware Support

This project supports SX1276 and SX1272, sx126x kit, sx126x shield, and sx128x 2.4GHz. The ST board B-L072Z-LRWAN1 is also supported (TypeABZ module). When B-L072Z-LRWAN1 target is selected, TARGET_DISCO_L072CZ_LRWAN1 is defined by tools, allowing correct radio driver configuration for this platform. Alternately, any mbed board that can use LoRa radio shield board should work, but NUCLEO boards are tested.

End-node Unique ID

DevEUI is created from CPU serial number. AppEUI and AppKey are declared as software constants.

End-node Configuration

Data rate definition LORAMAC_DEFAULT_DATARATE configured in LoRaMac-definitions.h. See gateway project page for configuration of gateway.
LoRaWAN addressing is configured in Comissioning.h; only OTA mode is functional.
Header file board/lora_config.h, selects application layer options (i.e. sensors) to be compiled in.

Serial Interface

Serial port operates at 115200bps.
Application layer single_us915_main.cpp User button triggers uplink (i.e. blue button on nucleo board), or jumper enables continuously sends repeated uplink packets. The MAC layer holds each uplink request until the allocated timeslot.

commandargumentsdescription
?-print available commands
. (period)-print status (DevEUI, DevAddr, etc)
ullength integerset payload length of test uplink packets

sensor demo

Selected grove sensors may be plugged into SX1272 shield.
To enable, edit lora_config.h to define SENSORS.

Sensor connections on SX1272MB2xAS:

D8 D9: buttonRX TX: (unused)A3 A4: Rotary Angle Sensor
D6 D7: RGB LEDSCL SDA: digital light sensorA1 A2: Rotary Angle Sensor

Digital input pin, state reported via uplink: PC8
Digital output pin, controlled via downlink: PC6
PWM out: PB_10

Jumper enables auto-repeated transmit: PC10 and PC12 on NUCLEO board, located on end of morpho headers nearby JP4.

board/board.cpp@3:aead8f8fdc1f, 2017-05-26 (annotated)

Committer:
dudmuck
Date:
Fri May 26 11:00:03 2017 -0700
Revision:
3:aead8f8fdc1f
Parent:
1:53c30224eda8
Child:
7:e238827f0e47
add choice of radio chip

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dudmuck 0:8f0d0ae0a077 1 /*
dudmuck 0:8f0d0ae0a077 2 / _____) _ | |
dudmuck 0:8f0d0ae0a077 3 ( (____ _____ ____ _| |_ _____ ____| |__
dudmuck 0:8f0d0ae0a077 4 \____ \| ___ | (_ _) ___ |/ ___) _ \
dudmuck 0:8f0d0ae0a077 5 _____) ) ____| | | || |_| ____( (___| | | |
dudmuck 0:8f0d0ae0a077 6 (______/|_____)_|_|_| \__)_____)\____)_| |_|
dudmuck 0:8f0d0ae0a077 7 (C)2015 Semtech
dudmuck 0:8f0d0ae0a077 8
dudmuck 0:8f0d0ae0a077 9 Description: Target board general functions implementation
dudmuck 0:8f0d0ae0a077 10
dudmuck 0:8f0d0ae0a077 11 License: Revised BSD License, see LICENSE.TXT file include in the project
dudmuck 0:8f0d0ae0a077 12
dudmuck 0:8f0d0ae0a077 13 Maintainer: Miguel Luis and Gregory Cristian
dudmuck 0:8f0d0ae0a077 14 */
dudmuck 0:8f0d0ae0a077 15 #include "mbed.h"
dudmuck 0:8f0d0ae0a077 16 #include "board.h"
dudmuck 0:8f0d0ae0a077 17
dudmuck 3:aead8f8fdc1f 18 #if defined(ENABLE_SX1272)
dudmuck 3:aead8f8fdc1f 19 SX1272MB2xAS Radio( NULL );
dudmuck 3:aead8f8fdc1f 20 #elif defined(ENABLE_SX1276)
dudmuck 3:aead8f8fdc1f 21 SX1276MB1xAS Radio( NULL );
dudmuck 3:aead8f8fdc1f 22 #endif
dudmuck 0:8f0d0ae0a077 23
dudmuck 0:8f0d0ae0a077 24 /*!
dudmuck 0:8f0d0ae0a077 25 * Nested interrupt counter.
dudmuck 0:8f0d0ae0a077 26 *
dudmuck 0:8f0d0ae0a077 27 * \remark Interrupt should only be fully disabled once the value is 0
dudmuck 0:8f0d0ae0a077 28 */
dudmuck 0:8f0d0ae0a077 29 static uint8_t IrqNestLevel = 0;
dudmuck 0:8f0d0ae0a077 30
dudmuck 0:8f0d0ae0a077 31 void BoardDisableIrq( void )
dudmuck 0:8f0d0ae0a077 32 {
dudmuck 0:8f0d0ae0a077 33 __disable_irq( );
dudmuck 0:8f0d0ae0a077 34 IrqNestLevel++;
dudmuck 0:8f0d0ae0a077 35 }
dudmuck 0:8f0d0ae0a077 36
dudmuck 0:8f0d0ae0a077 37 void BoardEnableIrq( void )
dudmuck 0:8f0d0ae0a077 38 {
dudmuck 0:8f0d0ae0a077 39 IrqNestLevel--;
dudmuck 0:8f0d0ae0a077 40 if( IrqNestLevel == 0 )
dudmuck 0:8f0d0ae0a077 41 {
dudmuck 0:8f0d0ae0a077 42 __enable_irq( );
dudmuck 0:8f0d0ae0a077 43 }
dudmuck 0:8f0d0ae0a077 44 }
dudmuck 0:8f0d0ae0a077 45
dudmuck 0:8f0d0ae0a077 46 void BoardInit( void )
dudmuck 0:8f0d0ae0a077 47 {
dudmuck 0:8f0d0ae0a077 48 }
dudmuck 0:8f0d0ae0a077 49
dudmuck 0:8f0d0ae0a077 50 uint8_t BoardGetBatteryLevel( void )
dudmuck 0:8f0d0ae0a077 51 {
dudmuck 0:8f0d0ae0a077 52 return 0xFE;
dudmuck 0:8f0d0ae0a077 53 }
dudmuck 0:8f0d0ae0a077 54
dudmuck 0:8f0d0ae0a077 55 #ifdef TARGET_STM32L1 /* TARGET_NUCLEO_L152RE */
dudmuck 0:8f0d0ae0a077 56 #define ID1 ( 0x1ff800d0 )
dudmuck 0:8f0d0ae0a077 57 #define ID2 ( 0x1ff800d4 )
dudmuck 0:8f0d0ae0a077 58 #define ID3 ( 0x1ff800d4 )
dudmuck 0:8f0d0ae0a077 59 DigitalOut rx_debug_pin(PC_3);
dudmuck 0:8f0d0ae0a077 60 #elif defined(TARGET_STM32L0) /* TARGET_NUCLEO_L073RZ */
dudmuck 0:8f0d0ae0a077 61 #define ID1 ( 0x1ff80050 )
dudmuck 0:8f0d0ae0a077 62 #define ID2 ( 0x1ff80054 )
dudmuck 0:8f0d0ae0a077 63 #define ID3 ( 0x1ff80064 )
dudmuck 1:53c30224eda8 64 #ifdef TYPE_ABZ
dudmuck 1:53c30224eda8 65 DigitalOut rx_debug_pin(PA_0);
dudmuck 1:53c30224eda8 66 #else
dudmuck 1:53c30224eda8 67 DigitalOut rx_debug_pin(PC_3);
dudmuck 1:53c30224eda8 68 #endif
dudmuck 0:8f0d0ae0a077 69 #else
dudmuck 0:8f0d0ae0a077 70 #error "provide signature address for target"
dudmuck 0:8f0d0ae0a077 71 #endif
dudmuck 0:8f0d0ae0a077 72
dudmuck 0:8f0d0ae0a077 73 void BoardGetUniqueId( uint8_t *id )
dudmuck 0:8f0d0ae0a077 74 {
dudmuck 0:8f0d0ae0a077 75 id[7] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 24;
dudmuck 0:8f0d0ae0a077 76 id[6] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 16;
dudmuck 0:8f0d0ae0a077 77 id[5] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 8;
dudmuck 0:8f0d0ae0a077 78 id[4] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) );
dudmuck 0:8f0d0ae0a077 79 id[3] = ( ( *( uint32_t* )ID2 ) ) >> 24;
dudmuck 0:8f0d0ae0a077 80 id[2] = ( ( *( uint32_t* )ID2 ) ) >> 16;
dudmuck 0:8f0d0ae0a077 81 id[1] = ( ( *( uint32_t* )ID2 ) ) >> 8;
dudmuck 0:8f0d0ae0a077 82 id[0] = ( ( *( uint32_t* )ID2 ) );
dudmuck 0:8f0d0ae0a077 83 }
dudmuck 0:8f0d0ae0a077 84
dudmuck 1:53c30224eda8 85 #define UART_TX_BUF_SIZE 256
dudmuck 1:53c30224eda8 86 char uart_tx_buf[UART_TX_BUF_SIZE];
dudmuck 1:53c30224eda8 87 unsigned uart_tx_buf_in, uart_tx_buf_out;
dudmuck 1:53c30224eda8 88 unsigned filled;
dudmuck 0:8f0d0ae0a077 89
dudmuck 1:53c30224eda8 90
dudmuck 1:53c30224eda8 91 #define PRINT_BUF_SIZE 96
dudmuck 1:53c30224eda8 92 int
dudmuck 1:53c30224eda8 93 isr_printf( const char* format, ... )
dudmuck 1:53c30224eda8 94 {
dudmuck 1:53c30224eda8 95 va_list arg;
dudmuck 1:53c30224eda8 96 char print_buf[PRINT_BUF_SIZE];
dudmuck 1:53c30224eda8 97 unsigned int i, printed_length;
dudmuck 1:53c30224eda8 98
dudmuck 1:53c30224eda8 99 va_start(arg, format);
dudmuck 1:53c30224eda8 100 printed_length = vsnprintf(print_buf, PRINT_BUF_SIZE, format, arg);
dudmuck 1:53c30224eda8 101 va_end(arg);
dudmuck 1:53c30224eda8 102
dudmuck 1:53c30224eda8 103 for (i = 0; i < printed_length; i ++) {
dudmuck 1:53c30224eda8 104 if (++filled >= UART_TX_BUF_SIZE) {
dudmuck 1:53c30224eda8 105 for (;;) __NOP();
dudmuck 1:53c30224eda8 106 }
dudmuck 1:53c30224eda8 107 uart_tx_buf[uart_tx_buf_in] = print_buf[i];
dudmuck 1:53c30224eda8 108 if (++uart_tx_buf_in == UART_TX_BUF_SIZE)
dudmuck 1:53c30224eda8 109 uart_tx_buf_in = 0;
dudmuck 1:53c30224eda8 110 }
dudmuck 1:53c30224eda8 111
dudmuck 1:53c30224eda8 112 return i;
dudmuck 1:53c30224eda8 113 }
dudmuck 1:53c30224eda8 114
dudmuck 1:53c30224eda8 115 extern Serial pc;
dudmuck 1:53c30224eda8 116 void bottom_half()
dudmuck 1:53c30224eda8 117 {
dudmuck 1:53c30224eda8 118 while (uart_tx_buf_in != uart_tx_buf_out) {
dudmuck 1:53c30224eda8 119 if (filled == 0) {
dudmuck 1:53c30224eda8 120 for (;;) __NOP();
dudmuck 1:53c30224eda8 121 } else
dudmuck 1:53c30224eda8 122 filled--;
dudmuck 1:53c30224eda8 123
dudmuck 1:53c30224eda8 124 pc.putc(uart_tx_buf[uart_tx_buf_out]);
dudmuck 1:53c30224eda8 125 if (++uart_tx_buf_out == UART_TX_BUF_SIZE)
dudmuck 1:53c30224eda8 126 uart_tx_buf_out = 0;
dudmuck 1:53c30224eda8 127 }
dudmuck 1:53c30224eda8 128 }