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@1:53c30224eda8, 2017-05-22 (annotated)

Committer:
dudmuck
Date:
Mon May 22 16:43:39 2017 -0700
Revision:
1:53c30224eda8
Parent:
0:8f0d0ae0a077
Child:
3:aead8f8fdc1f
prevent lockup from printing in ISR

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