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@16:915815632c1f, 2017-07-27 (annotated)

Committer:
dudmuck
Date:
Thu Jul 27 17:53:37 2017 +0000
Revision:
16:915815632c1f
Parent:
10:00997daeb0c0
Child:
18:9ac71c0eb70d
simplify MAC beacon timer

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 10:00997daeb0c0 48 uint32_t rtc_freq = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_RTC);
dudmuck 10:00997daeb0c0 49 if (rtc_freq != LSE_VALUE) {
dudmuck 10:00997daeb0c0 50 printf("bad rtc clock:%d\r\n", rtc_freq);
dudmuck 10:00997daeb0c0 51 for (;;) __NOP();
dudmuck 10:00997daeb0c0 52 }
dudmuck 0:8f0d0ae0a077 53 }
dudmuck 0:8f0d0ae0a077 54
dudmuck 0:8f0d0ae0a077 55 uint8_t BoardGetBatteryLevel( void )
dudmuck 0:8f0d0ae0a077 56 {
dudmuck 0:8f0d0ae0a077 57 return 0xFE;
dudmuck 0:8f0d0ae0a077 58 }
dudmuck 0:8f0d0ae0a077 59
dudmuck 0:8f0d0ae0a077 60 #ifdef TARGET_STM32L1 /* TARGET_NUCLEO_L152RE */
dudmuck 16:915815632c1f 61 /* 0x1ff80050: Cat1, Cat2 */
dudmuck 16:915815632c1f 62 #define ID1 ( 0x1ff800d0 ) /* Cat3, Cat4, Cat5 */
dudmuck 16:915815632c1f 63 #define ID2 ( ID1 + 0x04 )
dudmuck 16:915815632c1f 64 #define ID3 ( ID1 + 0x14 )
dudmuck 0:8f0d0ae0a077 65 DigitalOut rx_debug_pin(PC_3);
dudmuck 0:8f0d0ae0a077 66 #elif defined(TARGET_STM32L0) /* TARGET_NUCLEO_L073RZ */
dudmuck 0:8f0d0ae0a077 67 #define ID1 ( 0x1ff80050 )
dudmuck 16:915815632c1f 68 #define ID2 ( ID1 + 0x04 )
dudmuck 16:915815632c1f 69 #define ID3 ( ID1 + 0x14 )
dudmuck 9:08692264148b 70 #ifdef TARGET_DISCO_L072CZ_LRWAN1
dudmuck 1:53c30224eda8 71 DigitalOut rx_debug_pin(PA_0);
dudmuck 1:53c30224eda8 72 #else
dudmuck 1:53c30224eda8 73 DigitalOut rx_debug_pin(PC_3);
dudmuck 1:53c30224eda8 74 #endif
dudmuck 16:915815632c1f 75 #elif defined(TARGET_STM32L4) /* TARGET_NUCLEO_L476RG */
dudmuck 16:915815632c1f 76 #define ID1 ( 0x1fff7590 )
dudmuck 16:915815632c1f 77 #define ID2 ( ID1 + 0x04 )
dudmuck 16:915815632c1f 78 #define ID3 ( ID1 + 0x08 )
dudmuck 16:915815632c1f 79 DigitalOut rx_debug_pin(PC_3);
dudmuck 0:8f0d0ae0a077 80 #else
dudmuck 0:8f0d0ae0a077 81 #error "provide signature address for target"
dudmuck 0:8f0d0ae0a077 82 #endif
dudmuck 0:8f0d0ae0a077 83
dudmuck 0:8f0d0ae0a077 84 void BoardGetUniqueId( uint8_t *id )
dudmuck 0:8f0d0ae0a077 85 {
dudmuck 0:8f0d0ae0a077 86 id[7] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 24;
dudmuck 0:8f0d0ae0a077 87 id[6] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 16;
dudmuck 0:8f0d0ae0a077 88 id[5] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 8;
dudmuck 0:8f0d0ae0a077 89 id[4] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) );
dudmuck 0:8f0d0ae0a077 90 id[3] = ( ( *( uint32_t* )ID2 ) ) >> 24;
dudmuck 0:8f0d0ae0a077 91 id[2] = ( ( *( uint32_t* )ID2 ) ) >> 16;
dudmuck 0:8f0d0ae0a077 92 id[1] = ( ( *( uint32_t* )ID2 ) ) >> 8;
dudmuck 0:8f0d0ae0a077 93 id[0] = ( ( *( uint32_t* )ID2 ) );
dudmuck 0:8f0d0ae0a077 94 }
dudmuck 0:8f0d0ae0a077 95
dudmuck 1:53c30224eda8 96 #define UART_TX_BUF_SIZE 256
dudmuck 1:53c30224eda8 97 char uart_tx_buf[UART_TX_BUF_SIZE];
dudmuck 16:915815632c1f 98 volatile unsigned uart_tx_buf_in;
dudmuck 16:915815632c1f 99 volatile unsigned uart_tx_buf_out;
dudmuck 16:915815632c1f 100 volatile bool uart_full;
dudmuck 1:53c30224eda8 101
dudmuck 1:53c30224eda8 102 #define PRINT_BUF_SIZE 96
dudmuck 1:53c30224eda8 103 int
dudmuck 1:53c30224eda8 104 isr_printf( const char* format, ... )
dudmuck 1:53c30224eda8 105 {
dudmuck 1:53c30224eda8 106 va_list arg;
dudmuck 1:53c30224eda8 107 char print_buf[PRINT_BUF_SIZE];
dudmuck 1:53c30224eda8 108 unsigned int i, printed_length;
dudmuck 1:53c30224eda8 109
dudmuck 1:53c30224eda8 110 va_start(arg, format);
dudmuck 1:53c30224eda8 111 printed_length = vsnprintf(print_buf, PRINT_BUF_SIZE, format, arg);
dudmuck 1:53c30224eda8 112 va_end(arg);
dudmuck 1:53c30224eda8 113
dudmuck 1:53c30224eda8 114 for (i = 0; i < printed_length; i ++) {
dudmuck 1:53c30224eda8 115 uart_tx_buf[uart_tx_buf_in] = print_buf[i];
dudmuck 1:53c30224eda8 116 if (++uart_tx_buf_in == UART_TX_BUF_SIZE)
dudmuck 1:53c30224eda8 117 uart_tx_buf_in = 0;
dudmuck 16:915815632c1f 118 if (uart_tx_buf_in == uart_tx_buf_out)
dudmuck 16:915815632c1f 119 uart_full = true;
dudmuck 1:53c30224eda8 120 }
dudmuck 1:53c30224eda8 121
dudmuck 1:53c30224eda8 122 return i;
dudmuck 1:53c30224eda8 123 }
dudmuck 1:53c30224eda8 124
dudmuck 7:e238827f0e47 125 RawSerial pc( USBTX, USBRX );
dudmuck 7:e238827f0e47 126
dudmuck 1:53c30224eda8 127 void bottom_half()
dudmuck 1:53c30224eda8 128 {
dudmuck 16:915815632c1f 129 unsigned in = uart_tx_buf_in;
dudmuck 16:915815632c1f 130
dudmuck 16:915815632c1f 131 while (in != uart_tx_buf_out) {
dudmuck 1:53c30224eda8 132 pc.putc(uart_tx_buf[uart_tx_buf_out]);
dudmuck 1:53c30224eda8 133 if (++uart_tx_buf_out == UART_TX_BUF_SIZE)
dudmuck 1:53c30224eda8 134 uart_tx_buf_out = 0;
dudmuck 1:53c30224eda8 135 }
dudmuck 16:915815632c1f 136
dudmuck 16:915815632c1f 137 if (uart_full) {
dudmuck 16:915815632c1f 138 uart_full = false;
dudmuck 16:915815632c1f 139 pc.printf("<FULL>");
dudmuck 16:915815632c1f 140 }
dudmuck 1:53c30224eda8 141 }