Fredric Rice / Mbed 2 deprecated DemoKeypadMoorseCodeUnlockTouchAndButton

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Dependencies:   LCD_DISCO_F429ZI mbed TS_DISCO_F429ZI mbed-os BSP_DISCO_F429ZI

SecurityUnlockDemo-Main.cpp@1:316582aec4fb, 2019-06-01 (annotated)

Committer:
Damotclese
Date:
Sat Jun 01 20:43:11 2019 +0000
Revision:
1:316582aec4fb
Parent:
0:04d4cc695e56
Child:
3:0e554d8d5a19
Added animation of a mushroom sprite that occasionally teleports.;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Damotclese 0:04d4cc695e56 1
Damotclese 0:04d4cc695e56 2 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 3 // SecurityUnlockDemo-Main.cpp
Damotclese 0:04d4cc695e56 4 //
Damotclese 1:316582aec4fb 5 // Fredric L. Rice, June 2019
Damotclese 0:04d4cc695e56 6 //
Damotclese 0:04d4cc695e56 7 // This is a demonstration of how to build a keypad on the liquid
Damotclese 0:04d4cc695e56 8 // crystal display and then use the touch screen as a keypad to enter
Damotclese 0:04d4cc695e56 9 // an access code which grants access to other functionality. Two
Damotclese 0:04d4cc695e56 10 // levels of access is possible, with the more permissive access a
Damotclese 0:04d4cc695e56 11 // longer series of digits than the lesser-permissive access code.
Damotclese 0:04d4cc695e56 12 //
Damotclese 0:04d4cc695e56 13 // The keypad is built using position information in a table with some
Damotclese 0:04d4cc695e56 14 // fairly easy ways to move the keypad around on the display.
Damotclese 0:04d4cc695e56 15 //
Damotclese 0:04d4cc695e56 16 // The demonstration code also allows for the push button to be used
Damotclese 0:04d4cc695e56 17 // to key in Moorse Code pulses which are timed and then checked to
Damotclese 0:04d4cc695e56 18 // see if they match an expected access code for Moorse access.
Damotclese 0:04d4cc695e56 19 //
Damotclese 0:04d4cc695e56 20 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 21
Damotclese 1:316582aec4fb 22 #include "mbed.h" // The mbed operating system
Damotclese 1:316582aec4fb 23 #include "LCD_DISCO_F429ZI.h" // For controlling the LCD
Damotclese 1:316582aec4fb 24 #include "TS_DISCO_F429ZI.h" // For controlling the touch screen
Damotclese 1:316582aec4fb 25 #include "SecurityUnlockDemo-Main.h" // Always include our own header
Damotclese 1:316582aec4fb 26 #include "SecurityUnlockDemo-Keypad.h" // For all of the keypad functionality
Damotclese 1:316582aec4fb 27 #include "SecurityUnlockDemo-Moorse.h" // For all of the Moorse Code functionality
Damotclese 1:316582aec4fb 28 #include "SecurityUnlockDemo-Animation.h" // For performing animation
Damotclese 0:04d4cc695e56 29
Damotclese 0:04d4cc695e56 30 // ----------------------------------------------------------------------
Damotclese 1:316582aec4fb 31 // Define global data storage which we will export
Damotclese 0:04d4cc695e56 32 //
Damotclese 0:04d4cc695e56 33 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 34
Damotclese 0:04d4cc695e56 35 // We will be using the LCD so instantiate an object locally
Damotclese 1:316582aec4fb 36 LCD_DISCO_F429ZI st_lcd;
Damotclese 0:04d4cc695e56 37
Damotclese 0:04d4cc695e56 38 // We will be using the touch screen so instantiate an object
Damotclese 1:316582aec4fb 39 TS_DISCO_F429ZI st_touchScreen;
Damotclese 0:04d4cc695e56 40
Damotclese 1:316582aec4fb 41 // ----------------------------------------------------------------------
Damotclese 1:316582aec4fb 42 // Local data storage this module will hold
Damotclese 1:316582aec4fb 43 //
Damotclese 1:316582aec4fb 44 // ----------------------------------------------------------------------
Damotclese 1:316582aec4fb 45
Damotclese 1:316582aec4fb 46 // Because the mbed randomizer is not very good, we maintain the
Damotclese 1:316582aec4fb 47 // following counter which is incremented every time the main
Damotclese 1:316582aec4fb 48 // thread executes so that we can use it to assist in randoming
Damotclese 1:316582aec4fb 49 // our numbers for the animation
Damotclese 1:316582aec4fb 50 static uint32_t u32_randomSeeder;
Damotclese 0:04d4cc695e56 51
Damotclese 0:04d4cc695e56 52 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 53 // MainInit()
Damotclese 0:04d4cc695e56 54 //
Damotclese 0:04d4cc695e56 55 // This function will:
Damotclese 0:04d4cc695e56 56 // o Initialize the module's locally-held data
Damotclese 0:04d4cc695e56 57 // o Clear the LCD and set the display to WHITE
Damotclese 0:04d4cc695e56 58 // o Set the default character font size
Damotclese 0:04d4cc695e56 59 // o Initialize the touch screen by polling the size of the LCD
Damotclese 0:04d4cc695e56 60 // o Sets the push button to have no pull-up
Damotclese 0:04d4cc695e56 61 //
Damotclese 0:04d4cc695e56 62 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 63 static void MainInit(void)
Damotclese 0:04d4cc695e56 64 {
Damotclese 1:316582aec4fb 65 // Initialize locally-held data
Damotclese 1:316582aec4fb 66 u32_randomSeeder = 0;
Damotclese 0:04d4cc695e56 67
Damotclese 1:316582aec4fb 68 uint8_t u8_TouchScreenStatus = 0;
Damotclese 1:316582aec4fb 69
Damotclese 0:04d4cc695e56 70 // Bring the LCD up
Damotclese 0:04d4cc695e56 71 st_lcd.Clear(LCD_COLOR_WHITE);
Damotclese 0:04d4cc695e56 72
Damotclese 0:04d4cc695e56 73 // Set the default font size
Damotclese 0:04d4cc695e56 74 BSP_LCD_SetFont(&Font16);
Damotclese 0:04d4cc695e56 75
Damotclese 0:04d4cc695e56 76 // Initialize the touch screen
Damotclese 0:04d4cc695e56 77 u8_TouchScreenStatus = st_touchScreen.Init(st_lcd.GetXSize(), st_lcd.GetYSize());
Damotclese 0:04d4cc695e56 78
Damotclese 0:04d4cc695e56 79 if (TS_OK != u8_TouchScreenStatus)
Damotclese 0:04d4cc695e56 80 {
Damotclese 0:04d4cc695e56 81 st_lcd.DisplayStringAt(1, LINE(ENTERED_KEYS_LINE),
Damotclese 0:04d4cc695e56 82 (uint8_t *)"Touch screen failed", CENTER_MODE);
Damotclese 0:04d4cc695e56 83 }
Damotclese 0:04d4cc695e56 84 }
Damotclese 0:04d4cc695e56 85
Damotclese 0:04d4cc695e56 86 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 87 // MainGrantAccess()
Damotclese 0:04d4cc695e56 88 //
Damotclese 0:04d4cc695e56 89 // This function is invoked to display what access level has been
Damotclese 0:04d4cc695e56 90 // granted.
Damotclese 0:04d4cc695e56 91 //
Damotclese 0:04d4cc695e56 92 // ----------------------------------------------------------------------
Damotclese 1:316582aec4fb 93 void MainGrantAccess(uint8_t u8_thisAccessLevel)
Damotclese 0:04d4cc695e56 94 {
Damotclese 0:04d4cc695e56 95 uint8_t au8_reportString[21] = { 0 };
Damotclese 0:04d4cc695e56 96
Damotclese 0:04d4cc695e56 97 // Clear the display
Damotclese 0:04d4cc695e56 98 st_lcd.Clear(LCD_COLOR_WHITE);
Damotclese 0:04d4cc695e56 99
Damotclese 0:04d4cc695e56 100 // Build a report to offer
Damotclese 0:04d4cc695e56 101 (void)sprintf((char *)au8_reportString, "Level %u", u8_thisAccessLevel);
Damotclese 0:04d4cc695e56 102
Damotclese 0:04d4cc695e56 103 // Display the level of access that was granted
Damotclese 0:04d4cc695e56 104 st_lcd.DisplayStringAt(1, LINE(1), (uint8_t *)"Access granted", CENTER_MODE);
Damotclese 0:04d4cc695e56 105 st_lcd.DisplayStringAt(1, LINE(2), au8_reportString, CENTER_MODE);
Damotclese 0:04d4cc695e56 106 st_lcd.DisplayStringAt(1, LINE(3), (uint8_t *)"Press RESET to exit", CENTER_MODE);
Damotclese 0:04d4cc695e56 107
Damotclese 1:316582aec4fb 108 // Perform the screen animation
Damotclese 1:316582aec4fb 109 AnimationPerformAnimation(u32_randomSeeder);
Damotclese 0:04d4cc695e56 110 }
Damotclese 0:04d4cc695e56 111
Damotclese 0:04d4cc695e56 112 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 113 // MainThread()
Damotclese 0:04d4cc695e56 114 //
Damotclese 0:04d4cc695e56 115 // Called ten times a second.
Damotclese 0:04d4cc695e56 116 //
Damotclese 0:04d4cc695e56 117 // This function will:
Damotclese 0:04d4cc695e56 118 // o Get the state of the touch screen
Damotclese 0:04d4cc695e56 119 // o Check to see if a touch screen touch was detected
Damotclese 0:04d4cc695e56 120 // o Extract the X and Y coordinates of the screen touch
Damotclese 0:04d4cc695e56 121 // o Call a function which will handle the screen touch
Damotclese 0:04d4cc695e56 122 // o Call a function to monitor the push button to drive the
Damotclese 0:04d4cc695e56 123 // Moorse Code access functionality
Damotclese 0:04d4cc695e56 124 //
Damotclese 0:04d4cc695e56 125 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 126 static void MainThread(void)
Damotclese 0:04d4cc695e56 127 {
Damotclese 0:04d4cc695e56 128 uint16_t u16_screenX = 0;
Damotclese 0:04d4cc695e56 129 uint16_t u16_screenY = 0;
Damotclese 0:04d4cc695e56 130 TS_StateTypeDef st_touchScreenState;
Damotclese 0:04d4cc695e56 131
Damotclese 0:04d4cc695e56 132 // Get the status of the Touch Screen interface
Damotclese 0:04d4cc695e56 133 st_touchScreen.GetState(&st_touchScreenState);
Damotclese 0:04d4cc695e56 134
Damotclese 0:04d4cc695e56 135 // Has the screen been touched?
Damotclese 0:04d4cc695e56 136 if (st_touchScreenState.TouchDetected)
Damotclese 0:04d4cc695e56 137 {
Damotclese 0:04d4cc695e56 138 // It has been, extract the X and Y coordinates touched
Damotclese 0:04d4cc695e56 139 u16_screenX = st_touchScreenState.X;
Damotclese 0:04d4cc695e56 140 u16_screenY = st_touchScreenState.Y;
Damotclese 0:04d4cc695e56 141
Damotclese 0:04d4cc695e56 142 // Call the routine which handles the key press
Damotclese 1:316582aec4fb 143 KeypadHandleKeyPress(u16_screenX, u16_screenY);
Damotclese 0:04d4cc695e56 144 }
Damotclese 0:04d4cc695e56 145
Damotclese 0:04d4cc695e56 146 // Drive the Moorse Code access functionality, scanning the
Damotclese 0:04d4cc695e56 147 // push button 10 times a second
Damotclese 1:316582aec4fb 148 MoorseScanPushButton();
Damotclese 0:04d4cc695e56 149
Damotclese 1:316582aec4fb 150 // Keep track of how many times this function has been called
Damotclese 1:316582aec4fb 151 // so that we can attempt to see the random generator
Damotclese 1:316582aec4fb 152 u32_randomSeeder++;
Damotclese 0:04d4cc695e56 153 }
Damotclese 0:04d4cc695e56 154
Damotclese 0:04d4cc695e56 155 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 156 // main()
Damotclese 0:04d4cc695e56 157 //
Damotclese 0:04d4cc695e56 158 // This is the main entry called by thembed operating system.
Damotclese 0:04d4cc695e56 159 //
Damotclese 0:04d4cc695e56 160 // This function will:
Damotclese 0:04d4cc695e56 161 // o Initialize this module
Damotclese 0:04d4cc695e56 162 // o Call the function that established the LCD screen and
Damotclese 0:04d4cc695e56 163 // draws the keypad
Damotclese 0:04d4cc695e56 164 // o Goes in to a forever loop that wakes up 10 times a second
Damotclese 0:04d4cc695e56 165 // o Calls a function which drives the main task which scans the
Damotclese 0:04d4cc695e56 166 // LCD touch screen for screen touches
Damotclese 0:04d4cc695e56 167 //
Damotclese 0:04d4cc695e56 168 // ----------------------------------------------------------------------
Damotclese 0:04d4cc695e56 169 int main(void)
Damotclese 0:04d4cc695e56 170 {
Damotclese 0:04d4cc695e56 171 // Perform local module initialization, if any
Damotclese 0:04d4cc695e56 172 MainInit();
Damotclese 0:04d4cc695e56 173
Damotclese 1:316582aec4fb 174 // Initialize the Keypad module
Damotclese 1:316582aec4fb 175 KeypadInit();
Damotclese 1:316582aec4fb 176
Damotclese 1:316582aec4fb 177 // Initialize the Moorse Code module
Damotclese 1:316582aec4fb 178 MoorseInit();
Damotclese 1:316582aec4fb 179
Damotclese 1:316582aec4fb 180 // Initialize the Animation module
Damotclese 1:316582aec4fb 181 AnimationInit();
Damotclese 1:316582aec4fb 182
Damotclese 0:04d4cc695e56 183 // When we start up we will draw the touch screen keypad
Damotclese 1:316582aec4fb 184 KeypadDrawKeypad();
Damotclese 0:04d4cc695e56 185
Damotclese 0:04d4cc695e56 186 // Enter in to a forever loop which wakes up once a second
Damotclese 0:04d4cc695e56 187 while (true)
Damotclese 0:04d4cc695e56 188 {
Damotclese 0:04d4cc695e56 189 // Sleep for a tenth of a second
Damotclese 0:04d4cc695e56 190 wait(0.1);
Damotclese 0:04d4cc695e56 191
Damotclese 0:04d4cc695e56 192 // Call the main process
Damotclese 0:04d4cc695e56 193 MainThread();
Damotclese 0:04d4cc695e56 194 }
Damotclese 0:04d4cc695e56 195 }
Damotclese 0:04d4cc695e56 196
Damotclese 0:04d4cc695e56 197 // End of file
Damotclese 0:04d4cc695e56 198