8 Code Examples
Magnetometer readings
/*
/ _____) _ | |
( (____ _____ ____ _| |_ _____ ____| |__
\____ \| ___ | (_ _) ___ |/ ___) _ \
_____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
(C)2013 Semtech
Description: Generic lora driver implementation
License: Revised BSD License, see LICENSE.TXT file include in the project
Maintainer: Miguel Luis, Gregory Cristian and Wael Guibene
*/
/******************************************************************************
* @file main.c
* @author MCD Application Team
* @version V1.1.2
* @date 08-September-2017
* @brief this is the main!
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2017 STMicroelectronics International N.V.
* All rights reserved.</center></h2>
*
* Redistribution and use in source and binary forms, with or without
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*
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* software, must execute solely and exclusively on microcontroller or
* microprocessor devices manufactured by or for STMicroelectronics.
* 5. Redistribution and use of this software other than as permitted under
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*
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******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "hw.h"
#include "low_power.h"
#include "lora.h"
#include "bsp.h"
#include "timeServer.h"
#include "vcom.h"
#include "version.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define LPP_APP_PORT 99
/*!
* Defines the application data transmission duty cycle. 1*60s, value in [ms].
*/
#define APP_TX_DUTYCYCLE 1*60000 //3*1000
/*!
* LoRaWAN Adaptive Data Rate
* @note Please note that when ADR is enabled the end-device should be static
*/
#define LORAWAN_ADR_ON 1
/*!
* LoRaWAN confirmed messages
*/
#define LORAWAN_CONFIRMED_MSG DISABLE
/*!
* LoRaWAN application port
* @note do not use 224. It is reserved for certification
*/
#define LORAWAN_APP_PORT 2
/*!
* Number of trials for the join request.
*/
#define JOINREQ_NBTRIALS 3
/* Private macro -------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* call back when LoRa will transmit a frame*/
static void LoraTxData( lora_AppData_t *AppData, FunctionalState* IsTxConfirmed);
/* call back when LoRa has received a frame*/
static void LoraRxData( lora_AppData_t *AppData);
/* Private variables ---------------------------------------------------------*/
/* load call backs*/
static LoRaMainCallback_t LoRaMainCallbacks ={ HW_GetBatteryLevel,
HW_GetUniqueId,
HW_GetRandomSeed,
LoraTxData,
LoraRxData};
/*!
* Specifies the state of the application LED
*/
static uint8_t AppLedStateOn = RESET;
#ifdef USE_B_L072Z_LRWAN1
/*!
* Timer to handle the application Tx Led to toggle
*/
static TimerEvent_t TxLedTimer;
static void OnTimerLedEvent( void );
#endif
/* !
*Initialises the Lora Parameters
*/
static LoRaParam_t LoRaParamInit= {TX_ON_TIMER,
APP_TX_DUTYCYCLE,
CLASS_A,
LORAWAN_ADR_ON,
DR_0,
LORAWAN_PUBLIC_NETWORK,
JOINREQ_NBTRIALS};
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
//#define N_PN_BETA2 // [ MANUEL ] Uncomment if n-PN BETA2 is used.
#define MAGNETOMETER_VALUES // [ BRIAN ] Uncomment if sends the acceleromter instead of zeros
ADC_HandleTypeDef hadc;
I2C_HandleTypeDef hi2c1; // [ MANUEL ] I2C handler
uint8_t myTXData[] = { 0, 0, 0, 0 }; // [ MANUEL ] Acc. ID | RFID MSB | RFID Manufacturer code | SI7006: SNB_3
int main( void )
{
/* STM32 HAL library initialization*/
HAL_Init( );
/* Configure the system clock*/
SystemClock_Config( );
/* Configure the debug mode*/
DBG_Init( );
/* Configure the hardware*/
HW_Init( );
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* USER CODE BEGIN 1 */
// Tasks to be completed:
// 1. It configures the I2C1 module.
// 2. It checks if the Accelerometer works.
RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct;
hi2c1.Instance = I2C1; //PB9:I2C1_SDA && PB8:I2C1_SCL
hi2c1.Init.Timing = 100000;
hi2c1.Init.OwnAddress1 = 0x1D;
hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
hi2c1.Init.OwnAddress2 = 0xFF;
hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
GPIO_InitTypeDef initStruct;
initStruct.Pin = GPIO_PIN_9;
initStruct.Mode = GPIO_MODE_AF_OD;
initStruct.Pull = GPIO_NOPULL; // GPIO_PULLUP;
initStruct.Speed = GPIO_SPEED_FREQ_LOW; // GPIO_SPEED_FREQ_HIGH;
initStruct.Alternate = GPIO_AF4_I2C1;
__HAL_RCC_GPIOB_CLK_ENABLE();
/* I2C1_SDA */
HAL_GPIO_Init(GPIOB, &initStruct);
/* I2C1_SCL */
initStruct.Pin = GPIO_PIN_8;
HAL_GPIO_Init( GPIOB, &initStruct);
/*##-1- Configure the I2C clock source. The clock is derived from the SYSCLK #*/
RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_I2C1;
RCC_PeriphCLKInitStruct.I2c1ClockSelection = RCC_I2C1CLKSOURCE_SYSCLK;
HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct);
__HAL_RCC_I2C1_CLK_ENABLE();
if(HAL_I2C_Init(&hi2c1)!= HAL_OK){
Error_Handler();
}
uint8_t myCMD[] = { 0, 0 };
uint8_t myGetBuffer[ 8 ] = { 0 };
// [ ACCELEROMETER TEST ] Read Acc. ID
PRINTF("ACCELEROMETER TEST\n\r");
myCMD[0] = 0x0F; // Acc. WHO_AM_I_A register
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1D << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1D << 1 ), &myGetBuffer[0], 1, 500);
myTXData[0] = myGetBuffer[0];
PRINTF("Acc. ID is: %X ( it should be 0x43 )\n\r", myTXData[0]);
// [ MAGNETOMETER TEST ]
PRINTF("MAGNETOMETER TEST\n\r");
myCMD[0] = 0x4f;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1E << 1 ), &myGetBuffer[0], 1, 500);
myTXData[0] = myGetBuffer[0];
PRINTF("Mag. ID is: %X ( it should be 0x40 )\n\r", myTXData[0]);
myCMD[0] = 0x68;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1E << 1 ), &myGetBuffer[0], 1, 500);
myTXData[0] = myGetBuffer[0];
myCMD[0] = 0x69;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1E << 1 ), &myGetBuffer[0], 1, 500);
myTXData[1] = myGetBuffer[0];
PRINTF("Mag. X1 reg ID is: %X \n\r", myTXData[0]);
PRINTF("Mag. X2 reg ID is: %X \n\r", myTXData[1]);
//Trigger measurement
myCMD[0] = 0x60;
myCMD[1] = 0x81;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 2, 500);
PRINTF("CONFIGURE LORA STACK\n\r");
/* Configure the Lora Stack*/
lora_Init( &LoRaMainCallbacks, &LoRaParamInit);
PRINTF("SETUP COMPLETE\n\r");
PRINTF("##############\n\r");
while (1)
{
/* run the LoRa class A state machine*/
lora_fsm( );
DISABLE_IRQ( );
/* if an interrupt has occurred after DISABLE_IRQ, it is kept pending
* and cortex will not enter low power anyway */
if ( lora_getDeviceState( ) == DEVICE_STATE_SLEEP )
{
#ifndef LOW_POWER_DISABLE
LowPower_Handler( );
#endif
}
ENABLE_IRQ();
/* USER CODE BEGIN 2 */
/* USER CODE END 2 */
}
}
static void LoraTxData( lora_AppData_t *AppData, FunctionalState* IsTxConfirmed)
{
/* USER CODE BEGIN 3 */
uint8_t batteryLevel;
#ifdef MAGNETOMETER_VALUES
uint8_t myCMD[] = { 0, 0 };
uint8_t myGetBuffer[ 8 ] = { 0 };
//Trigger next measurement
myCMD[0] = 0x60;
myCMD[1] = 0x81;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 2, 500);
myCMD[0] = 0x68;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1E << 1 ), &myGetBuffer[0], 1, 500);
myTXData[0] = myGetBuffer[0];
myCMD[0] = 0x69;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1E << 1 ), &myGetBuffer[0], 1, 500);
myTXData[1] = myGetBuffer[0];
uint16_t magx = myTXData[0] + (myTXData[1] << 8);
myCMD[0] = 0x6A;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1E << 1 ), &myGetBuffer[0], 1, 500);
myTXData[0] = myGetBuffer[0];
myCMD[0] = 0x6B;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1E << 1 ), &myGetBuffer[0], 1, 500);
myTXData[1] = myGetBuffer[0];
uint16_t magy = myTXData[0] + (myTXData[1] << 8);
myCMD[0] = 0x6C;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1E << 1 ), &myGetBuffer[0], 1, 500);
myTXData[0] = myGetBuffer[0];
myCMD[0] = 0x6D;
HAL_I2C_Master_Transmit (&hi2c1, ( 0x1E << 1 ), &myCMD[0], 1, 500);
HAL_I2C_Master_Receive (&hi2c1, ( 0x1E << 1 ), &myGetBuffer[0], 1, 500);
myTXData[1] = myGetBuffer[0];
uint16_t magz = myTXData[0] + (myTXData[1] << 8);
PRINTF("MagXYZ %X %X %X\r\n", magx, magy, magz);
#endif
#ifdef USE_B_L072Z_LRWAN1
TimerInit( &TxLedTimer, OnTimerLedEvent );
TimerSetValue( &TxLedTimer, 200);
LED_On( LED_GREEN ) ;
TimerStart( &TxLedTimer );
#endif
uint32_t i = 0;
batteryLevel = HW_GetBatteryLevel( ); /* 1 (very low) to 254 (fully charged) */
AppData->Port = LPP_APP_PORT;
*IsTxConfirmed = LORAWAN_CONFIRMED_MSG;
AppData->Buff[i++] = 0x01;
AppData->Buff[i++] = batteryLevel*100/254;
#ifdef N_PN_BETA2
//AppData->Buff[i++] = myTXData[3];
#endif
#ifdef MAGNETOMETER_VALUES
AppData->Buff[i++] = ( magx >> 8 );
AppData->Buff[i++] = magx;
AppData->Buff[i++] = ( magy >> 8 );
AppData->Buff[i++] = magy;
AppData->Buff[i++] = ( magz >> 8 );
AppData->Buff[i++] = magz;
#else
AppData->Buff[i++] = 0x0;
AppData->Buff[i++] = 0x0;
AppData->Buff[i++] = 0x0;
AppData->Buff[i++] = 0x0;
AppData->Buff[i++] = 0x0;
AppData->Buff[i++] = 0x0;
#endif
AppData->BuffSize = i;
/* USER CODE END 3 */
}
static void LoraRxData( lora_AppData_t *AppData )
{
/* USER CODE BEGIN 4 */
switch (AppData->Port)
{
case LORAWAN_APP_PORT:
if( AppData->BuffSize == 1 )
{
AppLedStateOn = AppData->Buff[0] & 0x01;
if ( AppLedStateOn == RESET )
{
//PRINTF("LED OFF\n\r");
//LED_Off( LED_RED1 ) ; //LED_Off( LED_BLUE ) ;LED_RED1
}
else
{
//PRINTF("LED ON\n\r");
//LED_On( LED_RED1 ) ; //LED_On( LED_BLUE ) ;
}
//GpioWrite( &Led3, ( ( AppLedStateOn & 0x01 ) != 0 ) ? 0 : 1 );
}
break;
case LPP_APP_PORT:
{
AppLedStateOn= (AppData->Buff[2] == 100) ? 0x01 : 0x00;
if ( AppLedStateOn == RESET )
{
//PRINTF("LED OFF\n\r");
//LED_Off( LED_RED1 ) ; //LED_Off( LED_BLUE ) ;
}
else
{
//PRINTF("LED ON\n\r");
//LED_On( LED_RED1 ) ; //LED_On( LED_BLUE ) ;
}
break;
}
default:
break;
}
/* USER CODE END 4 */
}
#ifdef USE_B_L072Z_LRWAN1
static void OnTimerLedEvent( void )
{
LED_Off( LED_GREEN ) ; //LED_Off( LED_RED1 ) ;
}
#endif
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/