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added lorawan example in IAR, and added support for LIS3MDL and LPS22HB sensors

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1. modified the HTS221: removed magic numbers, added a sensor_tempnhumi_t struct to accommodate temperature and humidity data
2. added .h and .c files for LIS3MDL magnetic sensor
3. added .h and .c files for LPS22HB pressure sensor
3. added IAR (EWARM) project for lorawan example
4. added bsp.c and bsp.h to manager the sensors
This commit is contained in:
Winfred LIN
2020-03-31 17:48:27 +11:00
parent a3078ac232
commit da5884920a
19 changed files with 8101 additions and 1494 deletions
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136
board/NUCLEO_STM32L073RZ/BSP/HardWare/LIS3MDL/LIS3MDL.c Normal file
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/**
******************************************************************************
* @file LIS3MDL.c
* @author jieranzhi
* @update 2020/03/23 19:00 CST
* @brief This file provides code for the LIS3MDL Initialization
* and data output codes.
******************************************************************************
* @attention
*
* 1. this code is used as one of the examples in TencentOS_tiny project, it's
* just a simple implementation of the sensor functionalities, to implement
* more functions, please refer to the datasheet or the official software
* package provided by ST (STM32CubeExpansion_LRWAN_V1.3.1)
*
* 2. in this file the host MCU will to read the output persistently, which is
* NOT of power efficient.
*
******************************************************************************
*/
#include <LIS3MDL.h>
#include <i2c.h>
// initialization of LIS3MDL
void LIS3MDL_Init()
{
uint8_t cmd = 0;
// enable temperature sensor(temperature compensation);X and Y axes operative
// mode(Medium-performance); Output data rate(10Hz); disable high data rate
// disable Self-test
cmd = 0xB0;
HAL_I2C_Mem_Write(&hi2c1, LIS3MDL_ADDR_WR, LIS3MDL_CTRL_REG1, I2C_MEMADD_SIZE_8BIT, &cmd, 1, 0xFFFF);
// Full-scale:+/-4gauss; Reboot memory(normal)
cmd = 0x00;
HAL_I2C_Mem_Write(&hi2c1, LIS3MDL_ADDR_WR, LIS3MDL_CTRL_REG2, I2C_MEMADD_SIZE_8BIT, &cmd, 1, 0xFFFF);
// disable lowpower mode; Operating mode (continuous mode)
cmd = 0x00;
HAL_I2C_Mem_Write(&hi2c1, LIS3MDL_ADDR_WR, LIS3MDL_CTRL_REG3, I2C_MEMADD_SIZE_8BIT, &cmd, 1, 0xFFFF);
// Z-axis operative mode (Medium-performance)
cmd = 0x04;
HAL_I2C_Mem_Write(&hi2c1, LIS3MDL_ADDR_WR, LIS3MDL_CTRL_REG4, I2C_MEMADD_SIZE_8BIT, &cmd, 1, 0xFFFF);
// disable FAST READ; data block update(continuous)
cmd = 0x40;
HAL_I2C_Mem_Write(&hi2c1, LIS3MDL_ADDR_WR, LIS3MDL_CTRL_REG5, I2C_MEMADD_SIZE_8BIT, &cmd, 1, 0xFFFF);
}
// get fullscale configuration
LIS3MDL_FullScaleTypeDef LIS3MDL_Get_FullScale()
{
uint8_t fullscale;
HAL_I2C_Mem_Read(&hi2c1, LIS3MDL_ADDR_RD, LIS3MDL_CTRL_REG2, I2C_MEMADD_SIZE_8BIT, &fullscale, 1, 0xFFFF);
fullscale = (fullscale<<1)>>6;
return (LIS3MDL_FullScaleTypeDef)fullscale;
}
// set fullscale of the sensor
void LIS3MDL_Set_FullScale(LIS3MDL_FullScaleTypeDef fullscale)
{
uint8_t ctrl_reg2_value;
uint8_t fullscale_config = (uint8_t)fullscale;
HAL_I2C_Mem_Read(&hi2c1, LIS3MDL_ADDR_RD, LIS3MDL_CTRL_REG2, I2C_MEMADD_SIZE_8BIT, &ctrl_reg2_value, 1, 0xFFFF);
fullscale_config = (ctrl_reg2_value&0x9F)|(fullscale_config<<5);
HAL_I2C_Mem_Write(&hi2c1, LIS3MDL_ADDR_WR, LIS3MDL_CTRL_REG2, I2C_MEMADD_SIZE_8BIT, &fullscale_config, 1, 0xFFFF);
}
// calculate the sensitivity per fullscale
uint16_t LIS3MDL_Get_Sensitivity(LIS3MDL_FullScaleTypeDef fullscale)
{
uint16_t sensitivity = 1;
switch(fullscale)
{
case FULLSCALE_4:{
sensitivity = 6842;
break;
}
case FULLSCALE_8:{
sensitivity = 3421;
break;
}
case FULLSCALE_12:{
sensitivity = 2281;
break;
}
case FULLSCALE_16:{
sensitivity = 1711;
break;
}
default:{
sensitivity = 1;
}
}
return sensitivity;
}
// start a new acquisition by enabling the one-shot bit in the LIS3MDL_CTRL_REG2
// and read the magnetic field from the sensor
uint8_t LIS3MDL_Get_Magn(sensor_magn_t* magn_sensor)
{
uint8_t status_dat = 0;
uint8_t magn_x_out_l = 0;
uint8_t magn_x_out_h = 0;
uint8_t magn_y_out_l = 0;
uint8_t magn_y_out_h = 0;
uint8_t magn_z_out_l = 0;
uint8_t magn_z_out_h = 0;
// get fullscale and sensitivity
LIS3MDL_FullScaleTypeDef fullscale = LIS3MDL_Get_FullScale();
magn_sensor->fullscale = (uint8_t)fullscale;
magn_sensor->sensitivity = LIS3MDL_Get_Sensitivity(fullscale);
// wait until the data is ready
while((status_dat&LIS3MDL_ZYXDA) != LIS3MDL_ZYXDA)
{
HAL_I2C_Mem_Read(&hi2c1, LIS3MDL_ADDR_RD, LIS3MDL_STATUS_REG, I2C_MEMADD_SIZE_8BIT, &status_dat, 1, 0xFFFF);
}
HAL_I2C_Mem_Read(&hi2c1, LIS3MDL_ADDR_RD, LIS3MDL_X_OUT_L, I2C_MEMADD_SIZE_8BIT, &magn_x_out_l, 1, 0xFFFF);
HAL_I2C_Mem_Read(&hi2c1, LIS3MDL_ADDR_RD, LIS3MDL_X_OUT_H, I2C_MEMADD_SIZE_8BIT, &magn_x_out_h, 1, 0xFFFF);
HAL_I2C_Mem_Read(&hi2c1, LIS3MDL_ADDR_RD, LIS3MDL_Y_OUT_L, I2C_MEMADD_SIZE_8BIT, &magn_y_out_l, 1, 0xFFFF);
HAL_I2C_Mem_Read(&hi2c1, LIS3MDL_ADDR_RD, LIS3MDL_Y_OUT_H, I2C_MEMADD_SIZE_8BIT, &magn_y_out_h, 1, 0xFFFF);
HAL_I2C_Mem_Read(&hi2c1, LIS3MDL_ADDR_RD, LIS3MDL_Z_OUT_L, I2C_MEMADD_SIZE_8BIT, &magn_z_out_l, 1, 0xFFFF);
HAL_I2C_Mem_Read(&hi2c1, LIS3MDL_ADDR_RD, LIS3MDL_Z_OUT_H, I2C_MEMADD_SIZE_8BIT, &magn_z_out_h, 1, 0xFFFF);
magn_sensor->magn_x = (uint16_t)magn_x_out_h<<8|magn_x_out_l;
magn_sensor->magn_y = (uint16_t)magn_y_out_h<<8|magn_y_out_l;
magn_sensor->magn_z = (uint16_t)magn_z_out_h<<8|magn_z_out_l;
return 0;
}