NCTU Programming Marathon / Mbed 2 deprecated Program2_SensorReader

"Sensors Reader" Sample Application for X-NUCLEO-IKS01A1 Expansion Board

Dependencies:   X_NUCLEO_IKS01A1 mbed

Fork of Program2_SensorReader by Make NTU Hackathon

main.cpp@1:9458657e49ee, 2015-04-15 (annotated)

Committer:
Wolfgang Betz
Date:
Wed Apr 15 15:56:11 2015 +0200
Revision:
1:9458657e49ee
Parent:
0:3e4f610a0689
Child:
2:00f62b148a07
Adding example application and board initialization

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Wolfgang Betz 0:3e4f610a0689 1 /**
Wolfgang Betz 0:3e4f610a0689 2 ******************************************************************************
Wolfgang Betz 0:3e4f610a0689 3 * @file main.cpp
Wolfgang Betz 0:3e4f610a0689 4 * @author AST / EST
Wolfgang Betz 0:3e4f610a0689 5 * @version V0.0.1
Wolfgang Betz 0:3e4f610a0689 6 * @date 14-April-2015
Wolfgang Betz 0:3e4f610a0689 7 * @brief Example application for using the X_NUCLEO_IKS01A1
Wolfgang Betz 0:3e4f610a0689 8 * MEMS Inertial & Environmental Nucleo expansion board.
Wolfgang Betz 0:3e4f610a0689 9 ******************************************************************************
Wolfgang Betz 0:3e4f610a0689 10 * @attention
Wolfgang Betz 0:3e4f610a0689 11 *
Wolfgang Betz 0:3e4f610a0689 12 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
Wolfgang Betz 0:3e4f610a0689 13 *
Wolfgang Betz 0:3e4f610a0689 14 * Redistribution and use in source and binary forms, with or without modification,
Wolfgang Betz 0:3e4f610a0689 15 * are permitted provided that the following conditions are met:
Wolfgang Betz 0:3e4f610a0689 16 * 1. Redistributions of source code must retain the above copyright notice,
Wolfgang Betz 0:3e4f610a0689 17 * this list of conditions and the following disclaimer.
Wolfgang Betz 0:3e4f610a0689 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
Wolfgang Betz 0:3e4f610a0689 19 * this list of conditions and the following disclaimer in the documentation
Wolfgang Betz 0:3e4f610a0689 20 * and/or other materials provided with the distribution.
Wolfgang Betz 0:3e4f610a0689 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
Wolfgang Betz 0:3e4f610a0689 22 * may be used to endorse or promote products derived from this software
Wolfgang Betz 0:3e4f610a0689 23 * without specific prior written permission.
Wolfgang Betz 0:3e4f610a0689 24 *
Wolfgang Betz 0:3e4f610a0689 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Wolfgang Betz 0:3e4f610a0689 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Wolfgang Betz 0:3e4f610a0689 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Wolfgang Betz 0:3e4f610a0689 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
Wolfgang Betz 0:3e4f610a0689 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Wolfgang Betz 0:3e4f610a0689 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
Wolfgang Betz 0:3e4f610a0689 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
Wolfgang Betz 0:3e4f610a0689 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
Wolfgang Betz 0:3e4f610a0689 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Wolfgang Betz 0:3e4f610a0689 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Wolfgang Betz 0:3e4f610a0689 35 *
Wolfgang Betz 0:3e4f610a0689 36 ******************************************************************************
Wolfgang Betz 0:3e4f610a0689 37 */
Wolfgang Betz 0:3e4f610a0689 38
Wolfgang Betz 0:3e4f610a0689 39 /**
Wolfgang Betz 0:3e4f610a0689 40 * @mainpage X_NUCLEO_IKS01A1 MEMS Inertial & Environmental Nucleo Expansion Board firmware package
Wolfgang Betz 0:3e4f610a0689 41 *
Wolfgang Betz 0:3e4f610a0689 42 * <b>Introduction</b>
Wolfgang Betz 0:3e4f610a0689 43 *
Wolfgang Betz 0:3e4f610a0689 44 * This firmware package includes Components Device Drivers, Board Support Package
Wolfgang Betz 0:3e4f610a0689 45 * and example application for STMicroelectronics X_NUCLEO_IKS01A1 MEMS Inertial & Environmental Nucleo
Wolfgang Betz 0:3e4f610a0689 46 * Expansion Board
Wolfgang Betz 0:3e4f610a0689 47 *
Wolfgang Betz 0:3e4f610a0689 48 * <b>Example Application</b>
Wolfgang Betz 0:3e4f610a0689 49 *
Wolfgang Betz 0:3e4f610a0689 50 */
Wolfgang Betz 0:3e4f610a0689 51
Wolfgang Betz 0:3e4f610a0689 52
Wolfgang Betz 0:3e4f610a0689 53 /*** Includes ----------------------------------------------------------------- ***/
Wolfgang Betz 0:3e4f610a0689 54 #include "mbed.h"
Wolfgang Betz 0:3e4f610a0689 55 #include "x_nucleo_iks01a1.h"
Wolfgang Betz 0:3e4f610a0689 56
Wolfgang Betz 0:3e4f610a0689 57 #include <Ticker.h>
Wolfgang Betz 0:3e4f610a0689 58
Wolfgang Betz 0:3e4f610a0689 59
Wolfgang Betz 0:3e4f610a0689 60 /*** Constants ---------------------------------------------------------------- ***/
Wolfgang Betz 0:3e4f610a0689 61 namespace {
Wolfgang Betz 0:3e4f610a0689 62 const int MS_INTERVALS = 1000;
Wolfgang Betz 0:3e4f610a0689 63 }
Wolfgang Betz 0:3e4f610a0689 64
Wolfgang Betz 0:3e4f610a0689 65
Wolfgang Betz 0:3e4f610a0689 66 /*** Macros ------------------------------------------------------------------- ***/
Wolfgang Betz 1:9458657e49ee 67 #define APP_LOOP_PERIOD 1000 // in ms
Wolfgang Betz 0:3e4f610a0689 68
Wolfgang Betz 0:3e4f610a0689 69 #if defined(TARGET_K64F)
Wolfgang Betz 0:3e4f610a0689 70 #define USER_BUTTON (SW2)
Wolfgang Betz 0:3e4f610a0689 71 #elif defined(TARGET_LPC11U68)
Wolfgang Betz 0:3e4f610a0689 72 #define USER_BUTTON (P0_16)
Wolfgang Betz 0:3e4f610a0689 73 #endif // !TARGET_MCU_K64F
Wolfgang Betz 0:3e4f610a0689 74
Wolfgang Betz 0:3e4f610a0689 75
Wolfgang Betz 1:9458657e49ee 76 /*** Typedefs ----------------------------------------------------------------- ***/
Wolfgang Betz 1:9458657e49ee 77 typedef struct {
Wolfgang Betz 1:9458657e49ee 78 int32_t AXIS_X;
Wolfgang Betz 1:9458657e49ee 79 int32_t AXIS_Y;
Wolfgang Betz 1:9458657e49ee 80 int32_t AXIS_Z;
Wolfgang Betz 1:9458657e49ee 81 } AxesRaw_TypeDef;
Wolfgang Betz 1:9458657e49ee 82
Wolfgang Betz 1:9458657e49ee 83
Wolfgang Betz 0:3e4f610a0689 84 /*** Static variables --------------------------------------------------------- ***/
Wolfgang Betz 0:3e4f610a0689 85 #ifdef DBG_MCU
Wolfgang Betz 0:3e4f610a0689 86 /* betzw: enable debugging while using sleep modes */
Wolfgang Betz 0:3e4f610a0689 87 #include "DbgMCU.h"
Wolfgang Betz 0:3e4f610a0689 88 static DbgMCU enable_dbg;
Wolfgang Betz 0:3e4f610a0689 89 #endif // DBG_MCU
Wolfgang Betz 0:3e4f610a0689 90
Wolfgang Betz 1:9458657e49ee 91 static X_NUCLEO_IKS01A1 *mems_expansion_board = X_NUCLEO_IKS01A1::Instance();
Wolfgang Betz 0:3e4f610a0689 92
Wolfgang Betz 0:3e4f610a0689 93 static Ticker ticker;
Wolfgang Betz 0:3e4f610a0689 94 static InterruptIn button(USER_BUTTON);
Wolfgang Betz 0:3e4f610a0689 95
Wolfgang Betz 0:3e4f610a0689 96 static volatile bool timer_irq_triggered = false;
Wolfgang Betz 0:3e4f610a0689 97 static volatile bool button_irq_triggered = false;
Wolfgang Betz 0:3e4f610a0689 98
Wolfgang Betz 1:9458657e49ee 99 static DigitalOut myled(LED1);
Wolfgang Betz 0:3e4f610a0689 100
Wolfgang Betz 0:3e4f610a0689 101 /*** Helper Functions (1/2) ------------------------------------------------------------ ***/
Wolfgang Betz 0:3e4f610a0689 102
Wolfgang Betz 0:3e4f610a0689 103
Wolfgang Betz 0:3e4f610a0689 104 /*** Interrupt Handler Top-Halves ------------------------------------------------------ ***/
Wolfgang Betz 0:3e4f610a0689 105 /* Called in interrupt context, therefore just set a trigger variable */
Wolfgang Betz 0:3e4f610a0689 106 static void timer_irq(void) {
Wolfgang Betz 0:3e4f610a0689 107 timer_irq_triggered = true;
Wolfgang Betz 0:3e4f610a0689 108 }
Wolfgang Betz 0:3e4f610a0689 109
Wolfgang Betz 0:3e4f610a0689 110 /* Called in interrupt context, therefore just set a trigger variable */
Wolfgang Betz 0:3e4f610a0689 111 static void button_irq(void) {
Wolfgang Betz 0:3e4f610a0689 112 button_irq_triggered = true;
Wolfgang Betz 0:3e4f610a0689 113 button.disable_irq();
Wolfgang Betz 0:3e4f610a0689 114 }
Wolfgang Betz 0:3e4f610a0689 115
Wolfgang Betz 0:3e4f610a0689 116
Wolfgang Betz 0:3e4f610a0689 117 /*** Interrupt Handler Bottom-Halves ------------------------------------------------- ***/
Wolfgang Betz 0:3e4f610a0689 118 /* Handle button irq
Wolfgang Betz 0:3e4f610a0689 119 (here we are in "normal" context, i.e. not in IRQ context)
Wolfgang Betz 0:3e4f610a0689 120 */
Wolfgang Betz 0:3e4f610a0689 121 static void handle_button_irq(void) {
Wolfgang Betz 0:3e4f610a0689 122 /* TODO */
Wolfgang Betz 0:3e4f610a0689 123
Wolfgang Betz 0:3e4f610a0689 124 /* Re-enable button irq */
Wolfgang Betz 0:3e4f610a0689 125 button.enable_irq();
Wolfgang Betz 0:3e4f610a0689 126 }
Wolfgang Betz 0:3e4f610a0689 127
Wolfgang Betz 0:3e4f610a0689 128
Wolfgang Betz 0:3e4f610a0689 129 /*** Helper Functions (2/2) ------------------------------------------------------------ ***/
Wolfgang Betz 0:3e4f610a0689 130 /* Initialization function */
Wolfgang Betz 0:3e4f610a0689 131 static void init(void) {
Wolfgang Betz 1:9458657e49ee 132 uint8_t hts221_id;
Wolfgang Betz 1:9458657e49ee 133
Wolfgang Betz 0:3e4f610a0689 134 /* Set mode & irq handler for button */
Wolfgang Betz 0:3e4f610a0689 135 button.mode(PullNone);
Wolfgang Betz 0:3e4f610a0689 136 button.fall(button_irq);
Wolfgang Betz 0:3e4f610a0689 137
Wolfgang Betz 1:9458657e49ee 138 /* Determine ID of Humidity & Tempreture Sensor */
Wolfgang Betz 1:9458657e49ee 139 mems_expansion_board->ht_sensor.ReadID(&hts221_id);
Wolfgang Betz 1:9458657e49ee 140 printf("HTS221_ID = 0x%x\n\t\r", hts221_id);
Wolfgang Betz 1:9458657e49ee 141 }
Wolfgang Betz 1:9458657e49ee 142
Wolfgang Betz 1:9458657e49ee 143 /* Main cycle function */
Wolfgang Betz 1:9458657e49ee 144 static void main_cycle(void) {
Wolfgang Betz 1:9458657e49ee 145 float TEMPERATURE_Value;
Wolfgang Betz 1:9458657e49ee 146 float HUMIDITY_Value;
Wolfgang Betz 1:9458657e49ee 147 float PRESSURE_Value;
Wolfgang Betz 1:9458657e49ee 148 AxesRaw_TypeDef MAG_Value;
Wolfgang Betz 1:9458657e49ee 149 AxesRaw_TypeDef ACC_Value;
Wolfgang Betz 1:9458657e49ee 150 AxesRaw_TypeDef GYR_Value;
Wolfgang Betz 1:9458657e49ee 151
Wolfgang Betz 1:9458657e49ee 152 /* Switch LED On */
Wolfgang Betz 1:9458657e49ee 153 myled = 1;
Wolfgang Betz 1:9458657e49ee 154
Wolfgang Betz 1:9458657e49ee 155 /* Determine Environmental Values */
Wolfgang Betz 1:9458657e49ee 156 mems_expansion_board->ht_sensor.GetTemperature(&TEMPERATURE_Value);
Wolfgang Betz 1:9458657e49ee 157 mems_expansion_board->ht_sensor.GetHumidity(&HUMIDITY_Value);
Wolfgang Betz 1:9458657e49ee 158 mems_expansion_board->pressure_sensor.GetPressure(&PRESSURE_Value);
Wolfgang Betz 1:9458657e49ee 159 mems_expansion_board->magnetometer.Get_M_Axes((int32_t *)&MAG_Value);
Wolfgang Betz 1:9458657e49ee 160 mems_expansion_board->gyroscope.Get_X_Axes((int32_t *)&ACC_Value);
Wolfgang Betz 1:9458657e49ee 161 mems_expansion_board->gyroscope.Get_G_Axes((int32_t *)&GYR_Value);
Wolfgang Betz 1:9458657e49ee 162
Wolfgang Betz 1:9458657e49ee 163 /* Print Values Out */
Wolfgang Betz 1:9458657e49ee 164 printf("TEMP: %f HUMIDITY: %f PRESSURE: %f\t\r\n ",
Wolfgang Betz 1:9458657e49ee 165 TEMPERATURE_Value, HUMIDITY_Value, PRESSURE_Value);
Wolfgang Betz 1:9458657e49ee 166 printf("X_AXIS: %ld, Y_AXIS: %ld, Z_AXIS: %ld\t\r\n ",
Wolfgang Betz 1:9458657e49ee 167 MAG_Value.AXIS_X, MAG_Value.AXIS_Y, MAG_Value.AXIS_Z);
Wolfgang Betz 1:9458657e49ee 168 printf("X_ACC: %ld, Y_ACC: %ld, Z_ACC: %ld\t\r\n ",
Wolfgang Betz 1:9458657e49ee 169 ACC_Value.AXIS_X, ACC_Value.AXIS_Y, ACC_Value.AXIS_Z);
Wolfgang Betz 1:9458657e49ee 170 printf("X_GYR: %ld, Y_GYR: %ld, Z_GYR: %ld\t\r\n ",
Wolfgang Betz 1:9458657e49ee 171 GYR_Value.AXIS_X, GYR_Value.AXIS_Y, GYR_Value.AXIS_Z);
Wolfgang Betz 1:9458657e49ee 172
Wolfgang Betz 1:9458657e49ee 173 /* Switch LED Off */
Wolfgang Betz 1:9458657e49ee 174 myled = 0;
Wolfgang Betz 0:3e4f610a0689 175 }
Wolfgang Betz 0:3e4f610a0689 176
Wolfgang Betz 0:3e4f610a0689 177
Wolfgang Betz 0:3e4f610a0689 178 /*** Main function ------------------------------------------------------------- ***/
Wolfgang Betz 0:3e4f610a0689 179 /* Generic main function/loop for enabling WFI in case of
Wolfgang Betz 0:3e4f610a0689 180 interrupt based cyclic execution
Wolfgang Betz 0:3e4f610a0689 181 */
Wolfgang Betz 0:3e4f610a0689 182 int main()
Wolfgang Betz 0:3e4f610a0689 183 {
Wolfgang Betz 0:3e4f610a0689 184 /* Start & initialize */
Wolfgang Betz 0:3e4f610a0689 185 printf("\n--- Starting new run ---\n");
Wolfgang Betz 0:3e4f610a0689 186 init();
Wolfgang Betz 0:3e4f610a0689 187
Wolfgang Betz 0:3e4f610a0689 188 /* Start timer irq */
Wolfgang Betz 0:3e4f610a0689 189 ticker.attach_us(timer_irq, MS_INTERVALS * APP_LOOP_PERIOD);
Wolfgang Betz 0:3e4f610a0689 190
Wolfgang Betz 0:3e4f610a0689 191 while (true) {
Wolfgang Betz 0:3e4f610a0689 192 __disable_irq();
Wolfgang Betz 0:3e4f610a0689 193 if(timer_irq_triggered) {
Wolfgang Betz 0:3e4f610a0689 194 timer_irq_triggered = false;
Wolfgang Betz 0:3e4f610a0689 195 __enable_irq();
Wolfgang Betz 1:9458657e49ee 196 main_cycle();
Wolfgang Betz 0:3e4f610a0689 197 } else if(button_irq_triggered) {
Wolfgang Betz 0:3e4f610a0689 198 button_irq_triggered = false;
Wolfgang Betz 0:3e4f610a0689 199 __enable_irq();
Wolfgang Betz 0:3e4f610a0689 200 handle_button_irq();
Wolfgang Betz 0:3e4f610a0689 201 } else {
Wolfgang Betz 0:3e4f610a0689 202 __WFI();
Wolfgang Betz 0:3e4f610a0689 203 __enable_irq(); /* do NOT enable irqs before WFI to avoid
Wolfgang Betz 0:3e4f610a0689 204 opening a window in which you can loose
Wolfgang Betz 0:3e4f610a0689 205 irq arrivals before going into WFI */
Wolfgang Betz 0:3e4f610a0689 206 }
Wolfgang Betz 0:3e4f610a0689 207 }
Wolfgang Betz 0:3e4f610a0689 208 }