ST / Mbed 2 deprecated HelloWorld_LED61A1

Simple test application for the STMicroelectronics X-NUCLEO-LED61A1 LED Control Expansion Board.

Dependencies:   X_NUCLEO_LED61A1 mbed

Fork of HelloWorld_LED61A1 by ST Expansion SW Team

LED Control with the X-NUCLEO-LED61A1 Expansion Board

This application provides a simple example of usage of the X-NUCLEO-LED61A1 LED Control Expansion Board.
It shows how to control a LED stripe load connected to the board by means of a sinusoidal wave form injected into the PWM dimming control pin.

main.cpp@2:dbd596540d46, 2015-12-17 (annotated)

Committer:
Davidroid
Date:
Thu Dec 17 18:13:57 2015 +0000
Revision:
2:dbd596540d46
Parent:
1:1c01b873ad45
Child:
3:ed347127fc38
+ Implementation completed.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Davidroid 0:f5a41692e1fb 1 /**
Davidroid 0:f5a41692e1fb 2 ******************************************************************************
Davidroid 0:f5a41692e1fb 3 * @file main.cpp
Davidroid 0:f5a41692e1fb 4 * @author Davide Aliprandi, STMicrolectronics
Davidroid 0:f5a41692e1fb 5 * @version V1.0.0
Davidroid 0:f5a41692e1fb 6 * @date December 9th, 2015
Davidroid 0:f5a41692e1fb 7 * @brief mbed test application for the STMicrolectronics X-NUCLEO-LED61A1
Davidroid 0:f5a41692e1fb 8 * LED expansion board.
Davidroid 0:f5a41692e1fb 9 ******************************************************************************
Davidroid 0:f5a41692e1fb 10 * @attention
Davidroid 0:f5a41692e1fb 11 *
Davidroid 0:f5a41692e1fb 12 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
Davidroid 0:f5a41692e1fb 13 *
Davidroid 0:f5a41692e1fb 14 * Redistribution and use in source and binary forms, with or without modification,
Davidroid 0:f5a41692e1fb 15 * are permitted provided that the following conditions are met:
Davidroid 0:f5a41692e1fb 16 * 1. Redistributions of source code must retain the above copyright notice,
Davidroid 0:f5a41692e1fb 17 * this list of conditions and the following disclaimer.
Davidroid 0:f5a41692e1fb 18 * 2. Redistributions in binary form must reproduce the above copyright notice,
Davidroid 0:f5a41692e1fb 19 * this list of conditions and the following disclaimer in the documentation
Davidroid 0:f5a41692e1fb 20 * and/or other materials provided with the distribution.
Davidroid 0:f5a41692e1fb 21 * 3. Neither the name of STMicroelectronics nor the names of its contributors
Davidroid 0:f5a41692e1fb 22 * may be used to endorse or promote products derived from this software
Davidroid 0:f5a41692e1fb 23 * without specific prior written permission.
Davidroid 0:f5a41692e1fb 24 *
Davidroid 0:f5a41692e1fb 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Davidroid 0:f5a41692e1fb 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Davidroid 0:f5a41692e1fb 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Davidroid 0:f5a41692e1fb 28 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
Davidroid 0:f5a41692e1fb 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Davidroid 0:f5a41692e1fb 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
Davidroid 0:f5a41692e1fb 31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
Davidroid 0:f5a41692e1fb 32 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
Davidroid 0:f5a41692e1fb 33 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Davidroid 0:f5a41692e1fb 34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Davidroid 0:f5a41692e1fb 35 *
Davidroid 0:f5a41692e1fb 36 ******************************************************************************
Davidroid 0:f5a41692e1fb 37 */
Davidroid 0:f5a41692e1fb 38
Davidroid 0:f5a41692e1fb 39
Davidroid 0:f5a41692e1fb 40 /* Includes ------------------------------------------------------------------*/
Davidroid 0:f5a41692e1fb 41
Davidroid 0:f5a41692e1fb 42 /* mbed specific header files. */
Davidroid 0:f5a41692e1fb 43 #include "mbed.h"
Davidroid 0:f5a41692e1fb 44
Davidroid 1:1c01b873ad45 45 /* Component specific header files. */
Davidroid 1:1c01b873ad45 46 #include "led6001_class.h"
Davidroid 1:1c01b873ad45 47
Davidroid 1:1c01b873ad45 48
Davidroid 1:1c01b873ad45 49 /* Definitions ---------------------------------------------------------------*/
Davidroid 1:1c01b873ad45 50
Davidroid 2:dbd596540d46 51 /* Loop period in micro-seconds. */
Davidroid 2:dbd596540d46 52 #define LOOP_PERIOD_us 1E6
Davidroid 2:dbd596540d46 53
Davidroid 2:dbd596540d46 54 /* Duration of button press in milli-seconds. */
Davidroid 2:dbd596540d46 55 #define SWITCH_DEMO_BUTTON_PRESS_ms 500
Davidroid 2:dbd596540d46 56 #define SWITCH_POWER_BUTTON_PRESS_ms 2000
Davidroid 2:dbd596540d46 57
Davidroid 2:dbd596540d46 58 /* Dimming Step. */
Davidroid 2:dbd596540d46 59 #define DIMMING_STEP 0.1f
Davidroid 2:dbd596540d46 60
Davidroid 2:dbd596540d46 61
Davidroid 2:dbd596540d46 62 /* Types ---------------------------------------------------------------------*/
Davidroid 2:dbd596540d46 63
Davidroid 2:dbd596540d46 64 /* Demos. */
Davidroid 2:dbd596540d46 65 typedef enum
Davidroid 2:dbd596540d46 66 {
Davidroid 2:dbd596540d46 67 PWM_DIMMING_STEPS = 0,
Davidroid 2:dbd596540d46 68 ANALOG_DIMMING_STEPS,
Davidroid 2:dbd596540d46 69 PWM_DIMMING_VARY,
Davidroid 2:dbd596540d46 70 ANALOG_DIMMING_VARY,
Davidroid 2:dbd596540d46 71 ANALOG_DIMMING_PHOTO,
Davidroid 2:dbd596540d46 72 LED_DEMO_SIZE
Davidroid 2:dbd596540d46 73 } LED_Demo_t;
Davidroid 2:dbd596540d46 74
Davidroid 2:dbd596540d46 75 /* Actions. */
Davidroid 2:dbd596540d46 76 typedef enum
Davidroid 2:dbd596540d46 77 {
Davidroid 2:dbd596540d46 78 SWITCH_POWER = 0,
Davidroid 2:dbd596540d46 79 SWITCH_DEMO,
Davidroid 2:dbd596540d46 80 SWITCH_STATE,
Davidroid 2:dbd596540d46 81 NO_ACTION
Davidroid 2:dbd596540d46 82 } LED_Action_t;
Davidroid 1:1c01b873ad45 83
Davidroid 1:1c01b873ad45 84
Davidroid 1:1c01b873ad45 85 /* Variables -----------------------------------------------------------------*/
Davidroid 1:1c01b873ad45 86
Davidroid 2:dbd596540d46 87 /* Main loop's ticker. */
Davidroid 2:dbd596540d46 88 static Ticker ticker;
Davidroid 1:1c01b873ad45 89
Davidroid 2:dbd596540d46 90 /* User Button's interrupt. */
Davidroid 2:dbd596540d46 91 static InterruptIn button(USER_BUTTON);
Davidroid 1:1c01b873ad45 92
Davidroid 1:1c01b873ad45 93 /* MCU Board's Led which provides the user with a visual feedback on
Davidroid 1:1c01b873ad45 94 the user button's status (ON = pressed, OFF = released). */
Davidroid 1:1c01b873ad45 95 DigitalOut button_pressed_led(LED1);
Davidroid 1:1c01b873ad45 96
Davidroid 2:dbd596540d46 97 /* LED Control Component. */
Davidroid 2:dbd596540d46 98 LED6001 *led;
Davidroid 2:dbd596540d46 99
Davidroid 2:dbd596540d46 100 /* Interrupt flags. */
Davidroid 2:dbd596540d46 101 static volatile bool ticker_irq_triggered;
Davidroid 2:dbd596540d46 102 static volatile bool button_irq_triggered;
Davidroid 2:dbd596540d46 103 static volatile bool xfault_irq_triggered;
Davidroid 2:dbd596540d46 104
Davidroid 2:dbd596540d46 105 /* Demo State. */
Davidroid 2:dbd596540d46 106 static volatile LED_Demo_t demo;
Davidroid 2:dbd596540d46 107 static volatile LED_Action_t action;
Davidroid 2:dbd596540d46 108 static volatile bool power_on;
Davidroid 2:dbd596540d46 109
Davidroid 2:dbd596540d46 110 /* PWM and Analog dimming values. */
Davidroid 2:dbd596540d46 111 static float pwm_dimming;
Davidroid 2:dbd596540d46 112 static float analog_dimming;
Davidroid 2:dbd596540d46 113
Davidroid 2:dbd596540d46 114 /* Demos' Names. */
Davidroid 2:dbd596540d46 115 static char* demos[] =
Davidroid 2:dbd596540d46 116 {
Davidroid 2:dbd596540d46 117 "Manual PWM Dimming",
Davidroid 2:dbd596540d46 118 "Manual Analog Dimming",
Davidroid 2:dbd596540d46 119 "Cyclic PWM Dimming",
Davidroid 2:dbd596540d46 120 "Cyclic Analog Dimming",
Davidroid 2:dbd596540d46 121 "Photo-based PWM Dimming"
Davidroid 2:dbd596540d46 122 };
Davidroid 1:1c01b873ad45 123
Davidroid 1:1c01b873ad45 124
Davidroid 1:1c01b873ad45 125 /* Functions -----------------------------------------------------------------*/
Davidroid 1:1c01b873ad45 126
Davidroid 1:1c01b873ad45 127 /**
Davidroid 2:dbd596540d46 128 * @brief Initilizing the demo.
Davidroid 2:dbd596540d46 129 * @param None.
Davidroid 2:dbd596540d46 130 * @retval None.
Davidroid 1:1c01b873ad45 131 */
Davidroid 2:dbd596540d46 132 void LEDInit(void)
Davidroid 1:1c01b873ad45 133 {
Davidroid 2:dbd596540d46 134 /* Initializing Interrupt flags. */
Davidroid 2:dbd596540d46 135 button_irq_triggered = false;
Davidroid 2:dbd596540d46 136 xfault_irq_triggered = false;
Davidroid 2:dbd596540d46 137 ticker_irq_triggered = false;
Davidroid 1:1c01b873ad45 138
Davidroid 2:dbd596540d46 139 /* Initializing Demo. */
Davidroid 2:dbd596540d46 140 power_on = true;
Davidroid 2:dbd596540d46 141 action = SWITCH_DEMO;
Davidroid 2:dbd596540d46 142 demo = (LED_Demo_t) (LED_DEMO_SIZE - 1);
Davidroid 2:dbd596540d46 143
Davidroid 2:dbd596540d46 144 /* Initializing PWM and Analog dimming to maximum values. */
Davidroid 2:dbd596540d46 145 pwm_dimming = 1.0f;
Davidroid 2:dbd596540d46 146 analog_dimming = 1.0f;
Davidroid 1:1c01b873ad45 147 }
Davidroid 1:1c01b873ad45 148
Davidroid 1:1c01b873ad45 149 /**
Davidroid 2:dbd596540d46 150 * @brief Handling the LED capabilities and executing several demos.
Davidroid 2:dbd596540d46 151 * @param None.
Davidroid 2:dbd596540d46 152 * @retval None.
Davidroid 1:1c01b873ad45 153 */
Davidroid 2:dbd596540d46 154 void LEDHandler(void)
Davidroid 1:1c01b873ad45 155 {
Davidroid 2:dbd596540d46 156 /* Switching LED power ON/OFF. */
Davidroid 2:dbd596540d46 157 if (action == SWITCH_POWER)
Davidroid 2:dbd596540d46 158 power_on = !power_on;
Davidroid 2:dbd596540d46 159
Davidroid 2:dbd596540d46 160 /* Handling the LED when powered ON. */
Davidroid 2:dbd596540d46 161 if (power_on)
Davidroid 2:dbd596540d46 162 {
Davidroid 2:dbd596540d46 163 /* Switching to the next demo. */
Davidroid 2:dbd596540d46 164 if (action == SWITCH_DEMO)
Davidroid 2:dbd596540d46 165 {
Davidroid 2:dbd596540d46 166 pwm_dimming = 1.0f;
Davidroid 2:dbd596540d46 167 analog_dimming = 1.0f;
Davidroid 2:dbd596540d46 168 demo = (LED_Demo_t) ((demo + 1) % LED_DEMO_SIZE);
Davidroid 2:dbd596540d46 169 }
Davidroid 2:dbd596540d46 170
Davidroid 2:dbd596540d46 171 /* Setting the LED depending on the selected demo. */
Davidroid 2:dbd596540d46 172 switch (demo)
Davidroid 2:dbd596540d46 173 {
Davidroid 2:dbd596540d46 174 /* Changing PWM dimming according to the user button. */
Davidroid 2:dbd596540d46 175 case PWM_DIMMING_STEPS:
Davidroid 2:dbd596540d46 176 if (action == SWITCH_STATE)
Davidroid 2:dbd596540d46 177 {
Davidroid 2:dbd596540d46 178 pwm_dimming -= DIMMING_STEP;
Davidroid 2:dbd596540d46 179 pwm_dimming = (pwm_dimming <= 0.0f ? 1.0f : pwm_dimming);
Davidroid 2:dbd596540d46 180 }
Davidroid 2:dbd596540d46 181 break;
Davidroid 2:dbd596540d46 182
Davidroid 2:dbd596540d46 183 /* Changing Analog dimming according to the user button. */
Davidroid 2:dbd596540d46 184 case ANALOG_DIMMING_STEPS:
Davidroid 2:dbd596540d46 185 if (action == SWITCH_STATE)
Davidroid 2:dbd596540d46 186 {
Davidroid 2:dbd596540d46 187 analog_dimming -= DIMMING_STEP;
Davidroid 2:dbd596540d46 188 analog_dimming = (analog_dimming <= 0.0f ? 1.0f : analog_dimming);
Davidroid 2:dbd596540d46 189 }
Davidroid 2:dbd596540d46 190 break;
Davidroid 2:dbd596540d46 191
Davidroid 2:dbd596540d46 192 /* Changing PWM dimming continuously. */
Davidroid 2:dbd596540d46 193 case PWM_DIMMING_VARY:
Davidroid 2:dbd596540d46 194 pwm_dimming -= DIMMING_STEP;
Davidroid 2:dbd596540d46 195 pwm_dimming = (pwm_dimming <= 0.0f ? 1.0f : pwm_dimming);
Davidroid 2:dbd596540d46 196 //wait_ms(50);
Davidroid 2:dbd596540d46 197 action = SWITCH_STATE;
Davidroid 2:dbd596540d46 198 break;
Davidroid 2:dbd596540d46 199
Davidroid 2:dbd596540d46 200 /* Changing Analog dimming continuously. */
Davidroid 2:dbd596540d46 201 case ANALOG_DIMMING_VARY:
Davidroid 2:dbd596540d46 202 analog_dimming -= DIMMING_STEP;
Davidroid 2:dbd596540d46 203 analog_dimming = (analog_dimming <= 0.0f ? 1.0f : analog_dimming);
Davidroid 2:dbd596540d46 204 //wait_ms(500);
Davidroid 2:dbd596540d46 205 action = SWITCH_STATE;
Davidroid 2:dbd596540d46 206 break;
Davidroid 2:dbd596540d46 207
Davidroid 2:dbd596540d46 208 /* Setting Analog dimming according to the photo sensor. */
Davidroid 2:dbd596540d46 209 case ANALOG_DIMMING_PHOTO:
Davidroid 2:dbd596540d46 210 //analog_dimming = (uint8_t) (led->GetCurrent() * ADC_RANGE / 72 + 8);
Davidroid 2:dbd596540d46 211 analog_dimming = ((1.0f - led->GetCurrent()) * (1.0f - DIMMING_STEP) + DIMMING_STEP);
Davidroid 2:dbd596540d46 212 //wait_ms(100);
Davidroid 2:dbd596540d46 213 action = SWITCH_STATE;
Davidroid 2:dbd596540d46 214 break;
Davidroid 2:dbd596540d46 215 }
Davidroid 2:dbd596540d46 216 }
Davidroid 2:dbd596540d46 217
Davidroid 2:dbd596540d46 218 /* Writing PWM and Analog dimming values to the LED and printing to the console. */
Davidroid 2:dbd596540d46 219 if (action != NO_ACTION)
Davidroid 2:dbd596540d46 220 {
Davidroid 2:dbd596540d46 221 if (action == SWITCH_POWER)
Davidroid 2:dbd596540d46 222 if (power_on)
Davidroid 2:dbd596540d46 223 {
Davidroid 2:dbd596540d46 224 /* Initializing PWM and Analog dimming to maximum values. */
Davidroid 2:dbd596540d46 225 pwm_dimming = 1.0f;
Davidroid 2:dbd596540d46 226 analog_dimming = 1.0f;
Davidroid 2:dbd596540d46 227
Davidroid 2:dbd596540d46 228 /* Printing to the console. */
Davidroid 2:dbd596540d46 229 printf("Power ON\r\n");
Davidroid 2:dbd596540d46 230 }
Davidroid 2:dbd596540d46 231 else
Davidroid 2:dbd596540d46 232 {
Davidroid 2:dbd596540d46 233 /* Powering OFF the LED. */
Davidroid 2:dbd596540d46 234 led->PowerOFF();
Davidroid 2:dbd596540d46 235
Davidroid 2:dbd596540d46 236 /* Printing to the console. */
Davidroid 2:dbd596540d46 237 printf("Power OFF\r\n");
Davidroid 2:dbd596540d46 238 }
Davidroid 2:dbd596540d46 239
Davidroid 2:dbd596540d46 240 if (power_on)
Davidroid 2:dbd596540d46 241 {
Davidroid 2:dbd596540d46 242 /* Writing PWM and Analog dimming values to the LED. */
Davidroid 2:dbd596540d46 243 led->SetPWMDimming(pwm_dimming);
Davidroid 2:dbd596540d46 244 led->SetAnalogDimming(analog_dimming);
Davidroid 2:dbd596540d46 245
Davidroid 2:dbd596540d46 246 /* Printing to the console. */
Davidroid 2:dbd596540d46 247 printf("%-24s PWM/Analog: %.3f %.3f\r\n", demos[demo], pwm_dimming, analog_dimming);
Davidroid 2:dbd596540d46 248 }
Davidroid 2:dbd596540d46 249
Davidroid 2:dbd596540d46 250 /* Resetting action. */
Davidroid 2:dbd596540d46 251 action = NO_ACTION;
Davidroid 2:dbd596540d46 252 }
Davidroid 2:dbd596540d46 253 }
Davidroid 2:dbd596540d46 254
Davidroid 2:dbd596540d46 255 /**
Davidroid 2:dbd596540d46 256 * @brief Interrupt Request for the main loop's ticker related interrupt.
Davidroid 2:dbd596540d46 257 * @param None.
Davidroid 2:dbd596540d46 258 * @retval None.
Davidroid 2:dbd596540d46 259 */
Davidroid 2:dbd596540d46 260 void TickerIRQ(void)
Davidroid 2:dbd596540d46 261 {
Davidroid 2:dbd596540d46 262 ticker_irq_triggered = true;
Davidroid 2:dbd596540d46 263 }
Davidroid 2:dbd596540d46 264
Davidroid 2:dbd596540d46 265 /**
Davidroid 2:dbd596540d46 266 * @brief Interrupt Request for the user button's interrupt.
Davidroid 2:dbd596540d46 267 * @param None.
Davidroid 2:dbd596540d46 268 * @retval None.
Davidroid 2:dbd596540d46 269 */
Davidroid 2:dbd596540d46 270 void ButtonIRQ(void)
Davidroid 2:dbd596540d46 271 {
Davidroid 2:dbd596540d46 272 button_irq_triggered = true;
Davidroid 1:1c01b873ad45 273 button.disable_irq();
Davidroid 1:1c01b873ad45 274 }
Davidroid 1:1c01b873ad45 275
Davidroid 1:1c01b873ad45 276 /**
Davidroid 2:dbd596540d46 277 * @brief Interrupt Request for the component's XFAULT interrupt.
Davidroid 2:dbd596540d46 278 * @param None.
Davidroid 2:dbd596540d46 279 * @retval None.
Davidroid 1:1c01b873ad45 280 */
Davidroid 1:1c01b873ad45 281 void XFaultIRQ(void)
Davidroid 1:1c01b873ad45 282 {
Davidroid 1:1c01b873ad45 283 xfault_irq_triggered = true;
Davidroid 1:1c01b873ad45 284 led->DisableXFaultIRQ();
Davidroid 1:1c01b873ad45 285 }
Davidroid 1:1c01b873ad45 286
Davidroid 1:1c01b873ad45 287 /**
Davidroid 2:dbd596540d46 288 * @brief Interrupt Handler for the user button's interrupt.
Davidroid 2:dbd596540d46 289 * @param None.
Davidroid 2:dbd596540d46 290 * @retval None.
Davidroid 1:1c01b873ad45 291 */
Davidroid 1:1c01b873ad45 292 void ButtonHandler(void)
Davidroid 1:1c01b873ad45 293 {
Davidroid 2:dbd596540d46 294 /* User Button's timer to measure the time the button remains pressed. */
Davidroid 2:dbd596540d46 295 static Timer button_pressed_timer;
Davidroid 2:dbd596540d46 296
Davidroid 1:1c01b873ad45 297 bool button_pressed_flag = (button.read() == 0 ? true : false);
Davidroid 1:1c01b873ad45 298
Davidroid 1:1c01b873ad45 299 if (button_pressed_flag)
Davidroid 1:1c01b873ad45 300 {
Davidroid 1:1c01b873ad45 301 button_pressed_led = 1;
Davidroid 1:1c01b873ad45 302 button_pressed_timer.start();
Davidroid 1:1c01b873ad45 303 }
Davidroid 1:1c01b873ad45 304 else
Davidroid 1:1c01b873ad45 305 {
Davidroid 1:1c01b873ad45 306 button_pressed_led = 0;
Davidroid 1:1c01b873ad45 307 button_pressed_timer.stop();
Davidroid 1:1c01b873ad45 308
Davidroid 1:1c01b873ad45 309 /* Either changing current demo's state or switching to the next demo. */
Davidroid 2:dbd596540d46 310 int time_pressed = button_pressed_timer.read_ms();
Davidroid 2:dbd596540d46 311 if (time_pressed < SWITCH_DEMO_BUTTON_PRESS_ms)
Davidroid 2:dbd596540d46 312 action = SWITCH_STATE;
Davidroid 2:dbd596540d46 313 else if (time_pressed < SWITCH_POWER_BUTTON_PRESS_ms)
Davidroid 2:dbd596540d46 314 action = SWITCH_DEMO;
Davidroid 1:1c01b873ad45 315 else
Davidroid 2:dbd596540d46 316 action = SWITCH_POWER;
Davidroid 1:1c01b873ad45 317
Davidroid 1:1c01b873ad45 318 button_pressed_timer.reset();
Davidroid 1:1c01b873ad45 319 }
Davidroid 1:1c01b873ad45 320
Davidroid 1:1c01b873ad45 321 button.enable_irq();
Davidroid 1:1c01b873ad45 322 }
Davidroid 0:f5a41692e1fb 323
Davidroid 2:dbd596540d46 324 /**
Davidroid 2:dbd596540d46 325 * @brief Interrupt Handler for the component's XFAULT interrupt.
Davidroid 2:dbd596540d46 326 * @param None.
Davidroid 2:dbd596540d46 327 * @retval None.
Davidroid 2:dbd596540d46 328 */
Davidroid 2:dbd596540d46 329 void XFaultHandler(void)
Davidroid 2:dbd596540d46 330 {
Davidroid 2:dbd596540d46 331 /* Printing to the console. */
Davidroid 2:dbd596540d46 332 printf("XFAULT Interrupt detected! Re-initializing LED driver...\r\n");
Davidroid 2:dbd596540d46 333
Davidroid 2:dbd596540d46 334 /* Re-initializing the demo. */
Davidroid 2:dbd596540d46 335 LEDInit();
Davidroid 2:dbd596540d46 336
Davidroid 2:dbd596540d46 337 led->EnableXFaultIRQ();
Davidroid 2:dbd596540d46 338 }
Davidroid 2:dbd596540d46 339
Davidroid 0:f5a41692e1fb 340
Davidroid 0:f5a41692e1fb 341 /* Main ----------------------------------------------------------------------*/
Davidroid 0:f5a41692e1fb 342
Davidroid 0:f5a41692e1fb 343 int main()
Davidroid 0:f5a41692e1fb 344 {
Davidroid 0:f5a41692e1fb 345 /*----- Initialization. -----*/
Davidroid 0:f5a41692e1fb 346
Davidroid 2:dbd596540d46 347 /* Printing to the console. */
Davidroid 2:dbd596540d46 348 printf("LED Control Application Example\r\n\n");
Davidroid 2:dbd596540d46 349
Davidroid 1:1c01b873ad45 350 /* Initializing LED Control Component. */
Davidroid 2:dbd596540d46 351 led = new LED6001(D4, A3, D6, D5);
Davidroid 2:dbd596540d46 352 if (led->Init() != COMPONENT_OK)
Davidroid 1:1c01b873ad45 353 exit(EXIT_FAILURE);
Davidroid 1:1c01b873ad45 354
Davidroid 1:1c01b873ad45 355 /* Attaching interrupt request functions. */
Davidroid 1:1c01b873ad45 356 button.fall(ButtonIRQ);
Davidroid 1:1c01b873ad45 357 button.rise(ButtonIRQ);
Davidroid 1:1c01b873ad45 358 led->AttachXFaultIRQ(&XFaultIRQ);
Davidroid 2:dbd596540d46 359 ticker.attach_us(TickerIRQ, LOOP_PERIOD_us);
Davidroid 1:1c01b873ad45 360
Davidroid 2:dbd596540d46 361 /* Initializing the demo. */
Davidroid 2:dbd596540d46 362 LEDInit();
Davidroid 0:f5a41692e1fb 363
Davidroid 0:f5a41692e1fb 364
Davidroid 0:f5a41692e1fb 365 /*----- LED Control. -----*/
Davidroid 1:1c01b873ad45 366
Davidroid 2:dbd596540d46 367 /* Either performing the component handler, interrupt handlers, or waiting for events. */
Davidroid 1:1c01b873ad45 368 while (true)
Davidroid 1:1c01b873ad45 369 {
Davidroid 2:dbd596540d46 370 if (ticker_irq_triggered)
Davidroid 1:1c01b873ad45 371 {
Davidroid 2:dbd596540d46 372 ticker_irq_triggered = false;
Davidroid 1:1c01b873ad45 373 LEDHandler();
Davidroid 1:1c01b873ad45 374 } else if (button_irq_triggered)
Davidroid 1:1c01b873ad45 375 {
Davidroid 1:1c01b873ad45 376 button_irq_triggered = false;
Davidroid 1:1c01b873ad45 377 ButtonHandler();
Davidroid 1:1c01b873ad45 378 } else if(xfault_irq_triggered)
Davidroid 1:1c01b873ad45 379 {
Davidroid 1:1c01b873ad45 380 xfault_irq_triggered = false;
Davidroid 1:1c01b873ad45 381 XFaultHandler();
Davidroid 1:1c01b873ad45 382 } else
Davidroid 1:1c01b873ad45 383 {
Davidroid 1:1c01b873ad45 384 /* It is recommended that SEVONPEND in the System Control Register is NOT set. */
Davidroid 1:1c01b873ad45 385 __WFE();
Davidroid 1:1c01b873ad45 386 }
Davidroid 1:1c01b873ad45 387 }
Davidroid 1:1c01b873ad45 388 }