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@10:00997daeb0c0, 2017-06-17 (annotated)

Committer:
dudmuck
Date:
Sat Jun 17 00:04:30 2017 +0000
Revision:
10:00997daeb0c0
Parent:
9:08692264148b
Child:
16:915815632c1f
add sensor support for grove connectors

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 0:8f0d0ae0a077 61 #define ID1 ( 0x1ff800d0 )
dudmuck 0:8f0d0ae0a077 62 #define ID2 ( 0x1ff800d4 )
dudmuck 0:8f0d0ae0a077 63 #define ID3 ( 0x1ff800d4 )
dudmuck 0:8f0d0ae0a077 64 DigitalOut rx_debug_pin(PC_3);
dudmuck 0:8f0d0ae0a077 65 #elif defined(TARGET_STM32L0) /* TARGET_NUCLEO_L073RZ */
dudmuck 0:8f0d0ae0a077 66 #define ID1 ( 0x1ff80050 )
dudmuck 0:8f0d0ae0a077 67 #define ID2 ( 0x1ff80054 )
dudmuck 0:8f0d0ae0a077 68 #define ID3 ( 0x1ff80064 )
dudmuck 9:08692264148b 69 #ifdef TARGET_DISCO_L072CZ_LRWAN1
dudmuck 1:53c30224eda8 70 DigitalOut rx_debug_pin(PA_0);
dudmuck 1:53c30224eda8 71 #else
dudmuck 1:53c30224eda8 72 DigitalOut rx_debug_pin(PC_3);
dudmuck 1:53c30224eda8 73 #endif
dudmuck 0:8f0d0ae0a077 74 #else
dudmuck 0:8f0d0ae0a077 75 #error "provide signature address for target"
dudmuck 0:8f0d0ae0a077 76 #endif
dudmuck 0:8f0d0ae0a077 77
dudmuck 0:8f0d0ae0a077 78 void BoardGetUniqueId( uint8_t *id )
dudmuck 0:8f0d0ae0a077 79 {
dudmuck 0:8f0d0ae0a077 80 id[7] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 24;
dudmuck 0:8f0d0ae0a077 81 id[6] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 16;
dudmuck 0:8f0d0ae0a077 82 id[5] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 8;
dudmuck 0:8f0d0ae0a077 83 id[4] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) );
dudmuck 0:8f0d0ae0a077 84 id[3] = ( ( *( uint32_t* )ID2 ) ) >> 24;
dudmuck 0:8f0d0ae0a077 85 id[2] = ( ( *( uint32_t* )ID2 ) ) >> 16;
dudmuck 0:8f0d0ae0a077 86 id[1] = ( ( *( uint32_t* )ID2 ) ) >> 8;
dudmuck 0:8f0d0ae0a077 87 id[0] = ( ( *( uint32_t* )ID2 ) );
dudmuck 0:8f0d0ae0a077 88 }
dudmuck 0:8f0d0ae0a077 89
dudmuck 1:53c30224eda8 90 #define UART_TX_BUF_SIZE 256
dudmuck 1:53c30224eda8 91 char uart_tx_buf[UART_TX_BUF_SIZE];
dudmuck 1:53c30224eda8 92 unsigned uart_tx_buf_in, uart_tx_buf_out;
dudmuck 1:53c30224eda8 93 unsigned filled;
dudmuck 0:8f0d0ae0a077 94
dudmuck 1:53c30224eda8 95
dudmuck 1:53c30224eda8 96 #define PRINT_BUF_SIZE 96
dudmuck 1:53c30224eda8 97 int
dudmuck 1:53c30224eda8 98 isr_printf( const char* format, ... )
dudmuck 1:53c30224eda8 99 {
dudmuck 1:53c30224eda8 100 va_list arg;
dudmuck 1:53c30224eda8 101 char print_buf[PRINT_BUF_SIZE];
dudmuck 1:53c30224eda8 102 unsigned int i, printed_length;
dudmuck 1:53c30224eda8 103
dudmuck 1:53c30224eda8 104 va_start(arg, format);
dudmuck 1:53c30224eda8 105 printed_length = vsnprintf(print_buf, PRINT_BUF_SIZE, format, arg);
dudmuck 1:53c30224eda8 106 va_end(arg);
dudmuck 1:53c30224eda8 107
dudmuck 1:53c30224eda8 108 for (i = 0; i < printed_length; i ++) {
dudmuck 1:53c30224eda8 109 if (++filled >= UART_TX_BUF_SIZE) {
dudmuck 1:53c30224eda8 110 for (;;) __NOP();
dudmuck 1:53c30224eda8 111 }
dudmuck 1:53c30224eda8 112 uart_tx_buf[uart_tx_buf_in] = print_buf[i];
dudmuck 1:53c30224eda8 113 if (++uart_tx_buf_in == UART_TX_BUF_SIZE)
dudmuck 1:53c30224eda8 114 uart_tx_buf_in = 0;
dudmuck 1:53c30224eda8 115 }
dudmuck 1:53c30224eda8 116
dudmuck 1:53c30224eda8 117 return i;
dudmuck 1:53c30224eda8 118 }
dudmuck 1:53c30224eda8 119
dudmuck 7:e238827f0e47 120 RawSerial pc( USBTX, USBRX );
dudmuck 7:e238827f0e47 121
dudmuck 1:53c30224eda8 122 void bottom_half()
dudmuck 1:53c30224eda8 123 {
dudmuck 1:53c30224eda8 124 while (uart_tx_buf_in != uart_tx_buf_out) {
dudmuck 1:53c30224eda8 125 if (filled == 0) {
dudmuck 1:53c30224eda8 126 for (;;) __NOP();
dudmuck 1:53c30224eda8 127 } else
dudmuck 1:53c30224eda8 128 filled--;
dudmuck 1:53c30224eda8 129
dudmuck 1:53c30224eda8 130 pc.putc(uart_tx_buf[uart_tx_buf_out]);
dudmuck 1:53c30224eda8 131 if (++uart_tx_buf_out == UART_TX_BUF_SIZE)
dudmuck 1:53c30224eda8 132 uart_tx_buf_out = 0;
dudmuck 1:53c30224eda8 133 }
dudmuck 1:53c30224eda8 134 }