John Halfpenny / Mbed 2 deprecated Accellerometer_project

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Dependencies:   USBDevice mbed DipCortex-USB-EEProm

main.cpp@6:c3a33d04d731, 2015-09-03 (annotated)

Committer:
lh121438
Date:
Thu Sep 03 15:57:31 2015 +0000
Revision:
6:c3a33d04d731
Parent:
5:e1eb6bdf10f3
Child:
7:930020a7dc9e
First version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
johnhalfpenny 5:e1eb6bdf10f3 1 //
johnhalfpenny 5:e1eb6bdf10f3 2 // Accellerometer project
johnhalfpenny 5:e1eb6bdf10f3 3 //
johnhalfpenny 5:e1eb6bdf10f3 4 // Laurence Halfpenny
johnhalfpenny 5:e1eb6bdf10f3 5 // August 2015
SolderSplashLabs 0:0bce3a738bcb 6
SolderSplashLabs 0:0bce3a738bcb 7 #include "mbed.h"
SolderSplashLabs 0:0bce3a738bcb 8 #include "main.h"
SolderSplashLabs 0:0bce3a738bcb 9 #include "USBSerial.h"
SolderSplashLabs 0:0bce3a738bcb 10
SolderSplashLabs 0:0bce3a738bcb 11 USBSerial pc; // USB CDC serial port
SolderSplashLabs 0:0bce3a738bcb 12
johnhalfpenny 5:e1eb6bdf10f3 13 // Define the X, Y & Z analogue inputs on ADCs
johnhalfpenny 5:e1eb6bdf10f3 14 AnalogIn Z_in(P0_11); // Z accelleration voltage
johnhalfpenny 5:e1eb6bdf10f3 15 AnalogIn Y_in(P0_12); // Y accelleration voltage
johnhalfpenny 5:e1eb6bdf10f3 16 AnalogIn X_in(P0_13); // X accelleration voltage
SolderSplashLabs 4:ce953c80c5b3 17
johnhalfpenny 5:e1eb6bdf10f3 18 // Acceleration values
johnhalfpenny 5:e1eb6bdf10f3 19 int Z_accelleration=0;
johnhalfpenny 5:e1eb6bdf10f3 20 int Y_accelleration=0;
johnhalfpenny 5:e1eb6bdf10f3 21 int X_accelleration=0;
SolderSplashLabs 0:0bce3a738bcb 22
johnhalfpenny 5:e1eb6bdf10f3 23 // Control variables
johnhalfpenny 5:e1eb6bdf10f3 24 bool monitoring=FALSE; // Controls whether monitoring is running or stopped
johnhalfpenny 5:e1eb6bdf10f3 25
johnhalfpenny 5:e1eb6bdf10f3 26 // Ticker for monitoring
johnhalfpenny 5:e1eb6bdf10f3 27 Ticker monitor_tick;
SolderSplashLabs 0:0bce3a738bcb 28
SolderSplashLabs 0:0bce3a738bcb 29 // ------------------------------------------------------------------------------------------------------------
johnhalfpenny 5:e1eb6bdf10f3 30 // Wait for a character to be typed
SolderSplashLabs 0:0bce3a738bcb 31 // ------------------------------------------------------------------------------------------------------------
SolderSplashLabs 0:0bce3a738bcb 32 char WaitForSerialCommand ( void )
SolderSplashLabs 0:0bce3a738bcb 33 {
SolderSplashLabs 0:0bce3a738bcb 34 char charIn = 0;
SolderSplashLabs 0:0bce3a738bcb 35 char prevCharIn;
SolderSplashLabs 0:0bce3a738bcb 36
johnhalfpenny 5:e1eb6bdf10f3 37 pc.printf("Enter command: ");
SolderSplashLabs 0:0bce3a738bcb 38
johnhalfpenny 5:e1eb6bdf10f3 39 while (TRUE)
SolderSplashLabs 0:0bce3a738bcb 40 {
SolderSplashLabs 0:0bce3a738bcb 41 prevCharIn = charIn;
SolderSplashLabs 0:0bce3a738bcb 42 charIn = pc.getc();
SolderSplashLabs 0:0bce3a738bcb 43
SolderSplashLabs 0:0bce3a738bcb 44 pc.printf("%c", charIn);
SolderSplashLabs 0:0bce3a738bcb 45 if ((charIn == '\n') || (charIn == '\r'))
SolderSplashLabs 0:0bce3a738bcb 46 {
SolderSplashLabs 0:0bce3a738bcb 47 break;
SolderSplashLabs 0:0bce3a738bcb 48 }
SolderSplashLabs 0:0bce3a738bcb 49 }
SolderSplashLabs 0:0bce3a738bcb 50 return ( prevCharIn );
SolderSplashLabs 0:0bce3a738bcb 51 }
SolderSplashLabs 0:0bce3a738bcb 52
SolderSplashLabs 0:0bce3a738bcb 53
SolderSplashLabs 0:0bce3a738bcb 54 // ------------------------------------------------------------------------------------------------------------
johnhalfpenny 5:e1eb6bdf10f3 55 // Initialise the LPC1347 processor
SolderSplashLabs 0:0bce3a738bcb 56 // ------------------------------------------------------------------------------------------------------------
SolderSplashLabs 0:0bce3a738bcb 57 void init()
SolderSplashLabs 0:0bce3a738bcb 58 {
SolderSplashLabs 0:0bce3a738bcb 59 NVIC_SetPriority(SSP1_IRQn, 0x0);
SolderSplashLabs 0:0bce3a738bcb 60 NVIC_SetPriority(PIN_INT0_IRQn, 0x1);
SolderSplashLabs 0:0bce3a738bcb 61
SolderSplashLabs 0:0bce3a738bcb 62 // SysTick set to lower priority than Wi-Fi SPI bus interrupt
SolderSplashLabs 0:0bce3a738bcb 63 NVIC_SetPriority(SysTick_IRQn, 0x2);
SolderSplashLabs 3:15828ac052f1 64
SolderSplashLabs 3:15828ac052f1 65
SolderSplashLabs 3:15828ac052f1 66 // Enable RAM1
SolderSplashLabs 3:15828ac052f1 67 LPC_SYSCON->SYSAHBCLKCTRL |= (0x1 << 26);
SolderSplashLabs 0:0bce3a738bcb 68 }
SolderSplashLabs 0:0bce3a738bcb 69
SolderSplashLabs 0:0bce3a738bcb 70 // ------------------------------------------------------------------------------------------------------------
johnhalfpenny 5:e1eb6bdf10f3 71 // The monitoring software, triggered by the monitoring ticker
johnhalfpenny 5:e1eb6bdf10f3 72 // ------------------------------------------------------------------------------------------------------------
johnhalfpenny 5:e1eb6bdf10f3 73 void monitor_accelleration(void)
johnhalfpenny 5:e1eb6bdf10f3 74 {
johnhalfpenny 5:e1eb6bdf10f3 75 X_accelleration=X_in.read_u16(); // Read and print X accelleration
johnhalfpenny 5:e1eb6bdf10f3 76 X_accelleration=(X_accelleration-(0xFFFF/2)); // Convert to change in accelleration
johnhalfpenny 5:e1eb6bdf10f3 77 X_accelleration=X_accelleration/16;
johnhalfpenny 5:e1eb6bdf10f3 78 pc.printf("X: %d ",X_accelleration);
johnhalfpenny 5:e1eb6bdf10f3 79
johnhalfpenny 5:e1eb6bdf10f3 80 Y_accelleration=Y_in.read_u16(); // Read and print Y accelleration
johnhalfpenny 5:e1eb6bdf10f3 81 Y_accelleration=(Y_accelleration-(0xFFFF/2)); // Convert to change in accelleration
johnhalfpenny 5:e1eb6bdf10f3 82 Y_accelleration=Y_accelleration/16;
johnhalfpenny 5:e1eb6bdf10f3 83 pc.printf("Y: %d ",Y_accelleration);
johnhalfpenny 5:e1eb6bdf10f3 84
johnhalfpenny 5:e1eb6bdf10f3 85 Z_accelleration=Z_in.read_u16(); // Read and print Z accelleration
johnhalfpenny 5:e1eb6bdf10f3 86 Z_accelleration=(Z_accelleration-(0xFFFF/2)); // Convert to change in accelleration
johnhalfpenny 5:e1eb6bdf10f3 87 Z_accelleration=Z_accelleration/16;
johnhalfpenny 5:e1eb6bdf10f3 88 pc.printf("Z: %d \r\n",Z_accelleration);
johnhalfpenny 5:e1eb6bdf10f3 89 }
johnhalfpenny 5:e1eb6bdf10f3 90
johnhalfpenny 5:e1eb6bdf10f3 91 // ------------------------------------------------------------------------------------------------------------
johnhalfpenny 5:e1eb6bdf10f3 92 // main loop
SolderSplashLabs 0:0bce3a738bcb 93 // ------------------------------------------------------------------------------------------------------------
SolderSplashLabs 0:0bce3a738bcb 94 int main( void )
SolderSplashLabs 0:0bce3a738bcb 95 {
johnhalfpenny 5:e1eb6bdf10f3 96 // Initalise the LPC1347
SolderSplashLabs 0:0bce3a738bcb 97 init();
SolderSplashLabs 0:0bce3a738bcb 98
johnhalfpenny 5:e1eb6bdf10f3 99 // Wait for terminal program to start
lh121438 6:c3a33d04d731 100 wait(WAITATSTART);
SolderSplashLabs 0:0bce3a738bcb 101
johnhalfpenny 5:e1eb6bdf10f3 102 // Show the start banner
johnhalfpenny 5:e1eb6bdf10f3 103 pc.printf("\r\n");
johnhalfpenny 5:e1eb6bdf10f3 104 pc.printf("+-------------------------------------------+\r\n");
johnhalfpenny 5:e1eb6bdf10f3 105 pc.printf("| 3-axis accelleration measurer |\r\n");
johnhalfpenny 5:e1eb6bdf10f3 106 pc.printf("| Laurence Halfpenny |\r\n");
johnhalfpenny 5:e1eb6bdf10f3 107 pc.printf("+-------------------------------------------+\r\n");
johnhalfpenny 5:e1eb6bdf10f3 108
SolderSplashLabs 0:0bce3a738bcb 109
johnhalfpenny 5:e1eb6bdf10f3 110 // Forever check for commands from the keyboard
johnhalfpenny 5:e1eb6bdf10f3 111 while (TRUE)
johnhalfpenny 5:e1eb6bdf10f3 112 {
johnhalfpenny 5:e1eb6bdf10f3 113 pc.printf("+-------------------------------------------+\r\n");
johnhalfpenny 5:e1eb6bdf10f3 114 pc.printf("| MENU: |\r\n");
johnhalfpenny 5:e1eb6bdf10f3 115 pc.printf("| 1: Start monitoring |\r\n");
johnhalfpenny 5:e1eb6bdf10f3 116 pc.printf("| 2: Stop monitoring |\r\n");
johnhalfpenny 5:e1eb6bdf10f3 117 pc.printf("+-------------------------------------------+\r\n");
johnhalfpenny 5:e1eb6bdf10f3 118
johnhalfpenny 5:e1eb6bdf10f3 119 switch(WaitForSerialCommand())
johnhalfpenny 5:e1eb6bdf10f3 120 {
johnhalfpenny 5:e1eb6bdf10f3 121 case '1':
johnhalfpenny 5:e1eb6bdf10f3 122 pc.printf("Starting monitor\r\n");
johnhalfpenny 5:e1eb6bdf10f3 123 monitoring=TRUE;
johnhalfpenny 5:e1eb6bdf10f3 124 monitor_tick.attach(&monitor_accelleration,MONITORINTERVAL);
johnhalfpenny 5:e1eb6bdf10f3 125 break;
johnhalfpenny 5:e1eb6bdf10f3 126
johnhalfpenny 5:e1eb6bdf10f3 127 case '2':
johnhalfpenny 5:e1eb6bdf10f3 128 pc.printf("Stopping monitoring\r\n");
johnhalfpenny 5:e1eb6bdf10f3 129 monitoring=FALSE;
johnhalfpenny 5:e1eb6bdf10f3 130 monitor_tick.detach();
johnhalfpenny 5:e1eb6bdf10f3 131 break;
johnhalfpenny 5:e1eb6bdf10f3 132
johnhalfpenny 5:e1eb6bdf10f3 133 default:
johnhalfpenny 5:e1eb6bdf10f3 134 pc.printf("Invalid command\r\n");
johnhalfpenny 5:e1eb6bdf10f3 135 break;
johnhalfpenny 5:e1eb6bdf10f3 136 }
johnhalfpenny 5:e1eb6bdf10f3 137 }
johnhalfpenny 5:e1eb6bdf10f3 138
SolderSplashLabs 0:0bce3a738bcb 139 }