Christian Andresen / Mbed OS CSA_Uge2_2020

STM32-F746NG-DISCO Project.

Dependencies:   BSP_DISCO_F746NG

main.cpp@4:875a2d0a996d, 2020-01-09 (annotated)

Committer:
chri721u
Date:
Thu Jan 09 15:20:21 2020 +0000
Revision:
4:875a2d0a996d
Parent:
3:1d1ced98a985
Child:
5:f42b50713a12
STM32 Project, final version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
chri721u 0:6b60860a3ffe 1 /*
chri721u 0:6b60860a3ffe 2 Author: Christian Andresen
chri721u 1:0c13955ae7ae 3 Website: xcha11.skp-dp.sde.dk
chri721u 2:f3bee2fcc2a0 4 Date: 10-01-2020
chri721u 3:1d1ced98a985 5 Brief: STM32 project
chri721u 3:1d1ced98a985 6 Project includes:
chri721u 3:1d1ced98a985 7 Button/Touch sensor input, connected to LED lights and grove buzzer.
chri721u 3:1d1ced98a985 8 Infinite counter of 0-9999. Resets automatically.
chri721u 3:1d1ced98a985 9 Blue screen of death
chri721u 3:1d1ced98a985 10 Multithreading
chri721u 3:1d1ced98a985 11 Debug statements located within vital processes, for easy checking over console.
chri721u 0:6b60860a3ffe 12
chri721u 0:6b60860a3ffe 13 */
chri721u 2:f3bee2fcc2a0 14 #include "mbed.h" // mbed-os 5
chri721u 2:f3bee2fcc2a0 15 #include "stm32746g_discovery_lcd.h" // Last updated 27/11/2019
chri721u 2:f3bee2fcc2a0 16
chri721u 3:1d1ced98a985 17 // D2-D4: Input, D5-D8: Output.
chri721u 3:1d1ced98a985 18 InterruptIn button(D2);
chri721u 3:1d1ced98a985 19 InterruptIn touch(D3);
chri721u 0:6b60860a3ffe 20 DigitalOut led(D5);
chri721u 0:6b60860a3ffe 21 DigitalOut buzzer(D6);
chri721u 0:6b60860a3ffe 22
chri721u 2:f3bee2fcc2a0 23 // Multithreading
chri721u 3:1d1ced98a985 24 Thread CounterThread;
chri721u 3:1d1ced98a985 25 Thread InputThread;
chri721u 2:f3bee2fcc2a0 26
chri721u 3:1d1ced98a985 27 // Prototypes
chri721u 0:6b60860a3ffe 28 void bluescreen();
chri721u 3:1d1ced98a985 29 void input();
chri721u 3:1d1ced98a985 30 void buttonpress();
chri721u 3:1d1ced98a985 31 void touchpress();
chri721u 3:1d1ced98a985 32
chri721u 3:1d1ced98a985 33 // Button click counter, button-press bool, and determinator.
chri721u 0:6b60860a3ffe 34 int button_count;
chri721u 3:1d1ced98a985 35 bool buttonclick = false;
chri721u 3:1d1ced98a985 36
chri721u 3:1d1ced98a985 37 // Touch count, touch-sensor bool, and determinator
chri721u 0:6b60860a3ffe 38 int touch_count;
chri721u 3:1d1ced98a985 39 bool touchclick = false;
chri721u 3:1d1ced98a985 40
chri721u 3:1d1ced98a985 41 // Integers used for the 9999 counter.
chri721u 2:f3bee2fcc2a0 42 int countup;
chri721u 2:f3bee2fcc2a0 43 int restarts;
chri721u 0:6b60860a3ffe 44
chri721u 2:f3bee2fcc2a0 45 // 9999 counter program. Added above main for multithread ability.
chri721u 2:f3bee2fcc2a0 46 void ninecounter()
chri721u 3:1d1ced98a985 47 {
chri721u 3:1d1ced98a985 48 HAL_Delay(10000);
chri721u 2:f3bee2fcc2a0 49 while(1) {
chri721u 2:f3bee2fcc2a0 50 if (countup != 9999) {
chri721u 2:f3bee2fcc2a0 51 wait(0.001);
chri721u 2:f3bee2fcc2a0 52 countup++;
chri721u 2:f3bee2fcc2a0 53
chri721u 3:1d1ced98a985 54 } else if (restarts == 10) {
chri721u 3:1d1ced98a985 55 break;
chri721u 2:f3bee2fcc2a0 56 } else {
chri721u 3:1d1ced98a985 57 countup = 0;
chri721u 2:f3bee2fcc2a0 58 restarts++;
chri721u 3:1d1ced98a985 59 printf("Counter has finished counting. Reset nr. %d. \r\n", restarts);
chri721u 2:f3bee2fcc2a0 60 }
chri721u 2:f3bee2fcc2a0 61 }
chri721u 2:f3bee2fcc2a0 62 }
chri721u 2:f3bee2fcc2a0 63
chri721u 0:6b60860a3ffe 64 // Main part of the program
chri721u 0:6b60860a3ffe 65 int main()
chri721u 0:6b60860a3ffe 66 {
chri721u 3:1d1ced98a985 67 CounterThread.start(&ninecounter); // Start multithread ninecounter & inputcounter
chri721u 3:1d1ced98a985 68 InputThread.start(&input);
chri721u 3:1d1ced98a985 69
chri721u 3:1d1ced98a985 70 button.rise(&buttonpress);
chri721u 3:1d1ced98a985 71 touch.rise(&touchpress);
chri721u 2:f3bee2fcc2a0 72
chri721u 3:1d1ced98a985 73 uint8_t text[30]; // Prepare text element for later print to LCD
chri721u 3:1d1ced98a985 74 button_count = 0; // Amount of times the button has been pressed
chri721u 3:1d1ced98a985 75 touch_count = 0; // Amount of times the touch sensor has been activated
chri721u 3:1d1ced98a985 76 countup = 0; // Default value for the counter
chri721u 3:1d1ced98a985 77 restarts = 0; // Amount of times 9999 counter has been reset
chri721u 1:0c13955ae7ae 78
chri721u 2:f3bee2fcc2a0 79 // Boot up LCD screen
chri721u 0:6b60860a3ffe 80 BSP_LCD_Init();
chri721u 0:6b60860a3ffe 81 BSP_LCD_LayerDefaultInit(LTDC_ACTIVE_LAYER, LCD_FB_START_ADDRESS);
chri721u 0:6b60860a3ffe 82 BSP_LCD_SelectLayer(LTDC_ACTIVE_LAYER);
chri721u 3:1d1ced98a985 83
chri721u 0:6b60860a3ffe 84 // Clear the screen, add black background and red text
chri721u 0:6b60860a3ffe 85 BSP_LCD_Clear(LCD_COLOR_BLACK);
chri721u 0:6b60860a3ffe 86 BSP_LCD_SetBackColor(LCD_COLOR_BLACK);
chri721u 0:6b60860a3ffe 87 BSP_LCD_SetTextColor(LCD_COLOR_RED);
chri721u 3:1d1ced98a985 88
chri721u 0:6b60860a3ffe 89 // Bootup Message
chri721u 3:1d1ced98a985 90 printf("Device is booting up \r\n");
chri721u 3:1d1ced98a985 91 BSP_LCD_DisplayStringAt(0, 100, (uint8_t *) "HELLDROP STUDIO", CENTER_MODE);
chri721u 3:1d1ced98a985 92 BSP_LCD_DisplayStringAt(0, 150, (uint8_t *) "A big hard business", CENTER_MODE);
chri721u 3:1d1ced98a985 93 BSP_LCD_DisplayStringAt(0, 175, (uint8_t *) "in a big hard building", CENTER_MODE);
chri721u 3:1d1ced98a985 94 HAL_Delay(10000);
chri721u 2:f3bee2fcc2a0 95 // Change LCD Screen to system
chri721u 0:6b60860a3ffe 96 BSP_LCD_Clear(LCD_COLOR_BLACK);
chri721u 3:1d1ced98a985 97 printf("Device has started functioning \r\n");
chri721u 2:f3bee2fcc2a0 98 // Studio name & department
chri721u 2:f3bee2fcc2a0 99 BSP_LCD_DisplayStringAt(0, 25, (uint8_t *) "HELLDROP STUDIO SOFTWARE", CENTER_MODE);
chri721u 2:f3bee2fcc2a0 100 BSP_LCD_DisplayStringAt(0, 250, (uint8_t *) "Code by Christian Andresen", CENTER_MODE);
chri721u 0:6b60860a3ffe 101
chri721u 3:1d1ced98a985 102 // While there are less than 10 restarts of the counter..
chri721u 2:f3bee2fcc2a0 103 while(restarts < 10) {
chri721u 3:1d1ced98a985 104 // Combine string and integer value.
chri721u 3:1d1ced98a985 105 sprintf((char*)text, "Button count: %d", button_count);
chri721u 3:1d1ced98a985 106 // Print value to LCD screen
chri721u 3:1d1ced98a985 107 BSP_LCD_DisplayStringAt(0, 100, (uint8_t *)&text, CENTER_MODE);
chri721u 3:1d1ced98a985 108 sprintf((char*)text, "Touch count: %d", touch_count);
chri721u 3:1d1ced98a985 109 BSP_LCD_DisplayStringAt(0, 150, (uint8_t *)&text, CENTER_MODE);
chri721u 3:1d1ced98a985 110 sprintf((char*)text, " %d (%d) ", countup, restarts);
chri721u 3:1d1ced98a985 111 BSP_LCD_DisplayStringAt(0, 200, (uint8_t *)&text, CENTER_MODE);
chri721u 2:f3bee2fcc2a0 112 }
chri721u 3:1d1ced98a985 113 if (restarts == 10) { // If there are 10 restarts or more, trigger BSOD
chri721u 2:f3bee2fcc2a0 114 bluescreen();
chri721u 0:6b60860a3ffe 115 }
chri721u 0:6b60860a3ffe 116 }
chri721u 0:6b60860a3ffe 117
chri721u 0:6b60860a3ffe 118 void bluescreen()
chri721u 0:6b60860a3ffe 119 {
chri721u 0:6b60860a3ffe 120 //BLUE SCREEN OF DEATH
chri721u 3:1d1ced98a985 121 printf("FATAL ERROR. SYSTEM REQUIRES MANUAL REBOOT \r\n");
chri721u 0:6b60860a3ffe 122 BSP_LCD_Clear(LCD_COLOR_BLUE);
chri721u 0:6b60860a3ffe 123 BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
chri721u 0:6b60860a3ffe 124 BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
chri721u 2:f3bee2fcc2a0 125 BSP_LCD_DisplayStringAt(0, 75, (uint8_t *) "This device has", CENTER_MODE);
chri721u 2:f3bee2fcc2a0 126 BSP_LCD_DisplayStringAt(0, 100, (uint8_t *) "encountered", CENTER_MODE);
chri721u 2:f3bee2fcc2a0 127 BSP_LCD_DisplayStringAt(0, 125, (uint8_t *) "a fatal error", CENTER_MODE);
chri721u 2:f3bee2fcc2a0 128 BSP_LCD_DisplayStringAt(0, 150, (uint8_t *) "and needs to reboot.", CENTER_MODE);
chri721u 2:f3bee2fcc2a0 129 BSP_LCD_DisplayStringAt(0, 250, (uint8_t *) "HAL Error", LEFT_MODE);
chri721u 2:f3bee2fcc2a0 130 BSP_LCD_DisplayStringAt(0, 250, (uint8_t *) "ERROR CODE: 40", RIGHT_MODE);
chri721u 3:1d1ced98a985 131 }
chri721u 3:1d1ced98a985 132
chri721u 3:1d1ced98a985 133 void input()
chri721u 3:1d1ced98a985 134 {
chri721u 3:1d1ced98a985 135 HAL_Delay(10000);
chri721u 3:1d1ced98a985 136 while(1) {
chri721u 3:1d1ced98a985 137 if(buttonclick == true) {
chri721u 3:1d1ced98a985 138 printf("A button has been pressed. \r\n");
chri721u 3:1d1ced98a985 139 button_count++; // Add to button counter
chri721u 3:1d1ced98a985 140 led = 1; // Turn on LED
chri721u 3:1d1ced98a985 141 buzzer = 1; // Turn on buzzer
chri721u 4:875a2d0a996d 142 wait(0.25); // Prevent immediate shutdown
chri721u 3:1d1ced98a985 143 // Turn both off
chri721u 3:1d1ced98a985 144 led = 0;
chri721u 3:1d1ced98a985 145 buzzer = 0;
chri721u 3:1d1ced98a985 146 buttonclick = false; // End button click
chri721u 3:1d1ced98a985 147 } else if(touchclick == true) {
chri721u 3:1d1ced98a985 148 printf("Touch sensor has been activated \r\n");
chri721u 3:1d1ced98a985 149 touch_count++; // Add to touch counter on the LCD
chri721u 3:1d1ced98a985 150 led = 1;
chri721u 4:875a2d0a996d 151 wait(0.25);
chri721u 3:1d1ced98a985 152 led = 0;
chri721u 3:1d1ced98a985 153 touchclick = false; // End touch click
chri721u 3:1d1ced98a985 154 } else if (restarts == 10) {
chri721u 3:1d1ced98a985 155 break;
chri721u 3:1d1ced98a985 156 } else { // Failsafe if neither are turned off during click.
chri721u 3:1d1ced98a985 157 led = 0;
chri721u 3:1d1ced98a985 158 buzzer = 0;
chri721u 3:1d1ced98a985 159 }
chri721u 3:1d1ced98a985 160 }
chri721u 3:1d1ced98a985 161 }
chri721u 3:1d1ced98a985 162
chri721u 3:1d1ced98a985 163 void buttonpress()
chri721u 3:1d1ced98a985 164 {
chri721u 3:1d1ced98a985 165 buttonclick = true;
chri721u 3:1d1ced98a985 166 }
chri721u 3:1d1ced98a985 167
chri721u 3:1d1ced98a985 168 void touchpress()
chri721u 3:1d1ced98a985 169 {
chri721u 3:1d1ced98a985 170 touchclick = true;
chri721u 0:6b60860a3ffe 171 }