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@18:9ac71c0eb70d, 2017-08-02 (annotated)

Committer:
dudmuck
Date:
Wed Aug 02 11:42:33 2017 -0700
Revision:
18:9ac71c0eb70d
Parent:
16:915815632c1f
Child:
29:ad409c68c0a6
add pwm commands and 434MHz band

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 18:9ac71c0eb70d 17 #define __STDC_FORMAT_MACROS
dudmuck 18:9ac71c0eb70d 18 #include <inttypes.h>
dudmuck 0:8f0d0ae0a077 19
dudmuck 3:aead8f8fdc1f 20 #if defined(ENABLE_SX1272)
dudmuck 3:aead8f8fdc1f 21 SX1272MB2xAS Radio( NULL );
dudmuck 3:aead8f8fdc1f 22 #elif defined(ENABLE_SX1276)
dudmuck 3:aead8f8fdc1f 23 SX1276MB1xAS Radio( NULL );
dudmuck 3:aead8f8fdc1f 24 #endif
dudmuck 0:8f0d0ae0a077 25
dudmuck 0:8f0d0ae0a077 26 /*!
dudmuck 0:8f0d0ae0a077 27 * Nested interrupt counter.
dudmuck 0:8f0d0ae0a077 28 *
dudmuck 0:8f0d0ae0a077 29 * \remark Interrupt should only be fully disabled once the value is 0
dudmuck 0:8f0d0ae0a077 30 */
dudmuck 0:8f0d0ae0a077 31 static uint8_t IrqNestLevel = 0;
dudmuck 0:8f0d0ae0a077 32
dudmuck 0:8f0d0ae0a077 33 void BoardDisableIrq( void )
dudmuck 0:8f0d0ae0a077 34 {
dudmuck 0:8f0d0ae0a077 35 __disable_irq( );
dudmuck 0:8f0d0ae0a077 36 IrqNestLevel++;
dudmuck 0:8f0d0ae0a077 37 }
dudmuck 0:8f0d0ae0a077 38
dudmuck 0:8f0d0ae0a077 39 void BoardEnableIrq( void )
dudmuck 0:8f0d0ae0a077 40 {
dudmuck 0:8f0d0ae0a077 41 IrqNestLevel--;
dudmuck 0:8f0d0ae0a077 42 if( IrqNestLevel == 0 )
dudmuck 0:8f0d0ae0a077 43 {
dudmuck 0:8f0d0ae0a077 44 __enable_irq( );
dudmuck 0:8f0d0ae0a077 45 }
dudmuck 0:8f0d0ae0a077 46 }
dudmuck 0:8f0d0ae0a077 47
dudmuck 0:8f0d0ae0a077 48 void BoardInit( void )
dudmuck 0:8f0d0ae0a077 49 {
dudmuck 10:00997daeb0c0 50 uint32_t rtc_freq = HAL_RCCEx_GetPeriphCLKFreq(RCC_PERIPHCLK_RTC);
dudmuck 10:00997daeb0c0 51 if (rtc_freq != LSE_VALUE) {
dudmuck 18:9ac71c0eb70d 52 printf("bad rtc clock:%" PRId32 "\r\n", rtc_freq);
dudmuck 10:00997daeb0c0 53 for (;;) __NOP();
dudmuck 10:00997daeb0c0 54 }
dudmuck 0:8f0d0ae0a077 55 }
dudmuck 0:8f0d0ae0a077 56
dudmuck 0:8f0d0ae0a077 57 uint8_t BoardGetBatteryLevel( void )
dudmuck 0:8f0d0ae0a077 58 {
dudmuck 0:8f0d0ae0a077 59 return 0xFE;
dudmuck 0:8f0d0ae0a077 60 }
dudmuck 0:8f0d0ae0a077 61
dudmuck 0:8f0d0ae0a077 62 #ifdef TARGET_STM32L1 /* TARGET_NUCLEO_L152RE */
dudmuck 16:915815632c1f 63 /* 0x1ff80050: Cat1, Cat2 */
dudmuck 16:915815632c1f 64 #define ID1 ( 0x1ff800d0 ) /* Cat3, Cat4, Cat5 */
dudmuck 16:915815632c1f 65 #define ID2 ( ID1 + 0x04 )
dudmuck 16:915815632c1f 66 #define ID3 ( ID1 + 0x14 )
dudmuck 0:8f0d0ae0a077 67 DigitalOut rx_debug_pin(PC_3);
dudmuck 0:8f0d0ae0a077 68 #elif defined(TARGET_STM32L0) /* TARGET_NUCLEO_L073RZ */
dudmuck 0:8f0d0ae0a077 69 #define ID1 ( 0x1ff80050 )
dudmuck 16:915815632c1f 70 #define ID2 ( ID1 + 0x04 )
dudmuck 16:915815632c1f 71 #define ID3 ( ID1 + 0x14 )
dudmuck 9:08692264148b 72 #ifdef TARGET_DISCO_L072CZ_LRWAN1
dudmuck 1:53c30224eda8 73 DigitalOut rx_debug_pin(PA_0);
dudmuck 1:53c30224eda8 74 #else
dudmuck 1:53c30224eda8 75 DigitalOut rx_debug_pin(PC_3);
dudmuck 1:53c30224eda8 76 #endif
dudmuck 16:915815632c1f 77 #elif defined(TARGET_STM32L4) /* TARGET_NUCLEO_L476RG */
dudmuck 16:915815632c1f 78 #define ID1 ( 0x1fff7590 )
dudmuck 16:915815632c1f 79 #define ID2 ( ID1 + 0x04 )
dudmuck 16:915815632c1f 80 #define ID3 ( ID1 + 0x08 )
dudmuck 16:915815632c1f 81 DigitalOut rx_debug_pin(PC_3);
dudmuck 0:8f0d0ae0a077 82 #else
dudmuck 0:8f0d0ae0a077 83 #error "provide signature address for target"
dudmuck 0:8f0d0ae0a077 84 #endif
dudmuck 0:8f0d0ae0a077 85
dudmuck 0:8f0d0ae0a077 86 void BoardGetUniqueId( uint8_t *id )
dudmuck 0:8f0d0ae0a077 87 {
dudmuck 0:8f0d0ae0a077 88 id[7] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 24;
dudmuck 0:8f0d0ae0a077 89 id[6] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 16;
dudmuck 0:8f0d0ae0a077 90 id[5] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) ) >> 8;
dudmuck 0:8f0d0ae0a077 91 id[4] = ( ( *( uint32_t* )ID1 )+ ( *( uint32_t* )ID3 ) );
dudmuck 0:8f0d0ae0a077 92 id[3] = ( ( *( uint32_t* )ID2 ) ) >> 24;
dudmuck 0:8f0d0ae0a077 93 id[2] = ( ( *( uint32_t* )ID2 ) ) >> 16;
dudmuck 0:8f0d0ae0a077 94 id[1] = ( ( *( uint32_t* )ID2 ) ) >> 8;
dudmuck 0:8f0d0ae0a077 95 id[0] = ( ( *( uint32_t* )ID2 ) );
dudmuck 0:8f0d0ae0a077 96 }
dudmuck 0:8f0d0ae0a077 97
dudmuck 1:53c30224eda8 98 #define UART_TX_BUF_SIZE 256
dudmuck 1:53c30224eda8 99 char uart_tx_buf[UART_TX_BUF_SIZE];
dudmuck 16:915815632c1f 100 volatile unsigned uart_tx_buf_in;
dudmuck 16:915815632c1f 101 volatile unsigned uart_tx_buf_out;
dudmuck 16:915815632c1f 102 volatile bool uart_full;
dudmuck 1:53c30224eda8 103
dudmuck 1:53c30224eda8 104 #define PRINT_BUF_SIZE 96
dudmuck 1:53c30224eda8 105 int
dudmuck 1:53c30224eda8 106 isr_printf( const char* format, ... )
dudmuck 1:53c30224eda8 107 {
dudmuck 1:53c30224eda8 108 va_list arg;
dudmuck 1:53c30224eda8 109 char print_buf[PRINT_BUF_SIZE];
dudmuck 1:53c30224eda8 110 unsigned int i, printed_length;
dudmuck 1:53c30224eda8 111
dudmuck 1:53c30224eda8 112 va_start(arg, format);
dudmuck 1:53c30224eda8 113 printed_length = vsnprintf(print_buf, PRINT_BUF_SIZE, format, arg);
dudmuck 1:53c30224eda8 114 va_end(arg);
dudmuck 1:53c30224eda8 115
dudmuck 1:53c30224eda8 116 for (i = 0; i < printed_length; i ++) {
dudmuck 1:53c30224eda8 117 uart_tx_buf[uart_tx_buf_in] = print_buf[i];
dudmuck 1:53c30224eda8 118 if (++uart_tx_buf_in == UART_TX_BUF_SIZE)
dudmuck 1:53c30224eda8 119 uart_tx_buf_in = 0;
dudmuck 16:915815632c1f 120 if (uart_tx_buf_in == uart_tx_buf_out)
dudmuck 16:915815632c1f 121 uart_full = true;
dudmuck 1:53c30224eda8 122 }
dudmuck 1:53c30224eda8 123
dudmuck 1:53c30224eda8 124 return i;
dudmuck 1:53c30224eda8 125 }
dudmuck 1:53c30224eda8 126
dudmuck 7:e238827f0e47 127 RawSerial pc( USBTX, USBRX );
dudmuck 7:e238827f0e47 128
dudmuck 1:53c30224eda8 129 void bottom_half()
dudmuck 1:53c30224eda8 130 {
dudmuck 16:915815632c1f 131 unsigned in = uart_tx_buf_in;
dudmuck 16:915815632c1f 132
dudmuck 16:915815632c1f 133 while (in != uart_tx_buf_out) {
dudmuck 1:53c30224eda8 134 pc.putc(uart_tx_buf[uart_tx_buf_out]);
dudmuck 1:53c30224eda8 135 if (++uart_tx_buf_out == UART_TX_BUF_SIZE)
dudmuck 1:53c30224eda8 136 uart_tx_buf_out = 0;
dudmuck 1:53c30224eda8 137 }
dudmuck 16:915815632c1f 138
dudmuck 16:915815632c1f 139 if (uart_full) {
dudmuck 16:915815632c1f 140 uart_full = false;
dudmuck 16:915815632c1f 141 pc.printf("<FULL>");
dudmuck 16:915815632c1f 142 }
dudmuck 1:53c30224eda8 143 }