ObjectFollower
Dependencies: TPixy-Interface
Fork of PlayBack by
ui.cpp@0:a355e511bc5d, 2018-02-01 (annotated)
- Committer:
- asobhy
- Date:
- Thu Feb 01 03:58:00 2018 +0000
- Revision:
- 0:a355e511bc5d
- Child:
- 1:3e9684e81312
before testing the QEI
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
asobhy | 0:a355e511bc5d | 1 | #include "mbed.h" |
asobhy | 0:a355e511bc5d | 2 | #include "WatchdogThread.h" |
asobhy | 0:a355e511bc5d | 3 | #include "ui.h" |
asobhy | 0:a355e511bc5d | 4 | |
asobhy | 0:a355e511bc5d | 5 | Serial bluetooth(p9,p10); // Define the bluetooth channel and IO pins |
asobhy | 0:a355e511bc5d | 6 | Serial pc(USBTX, USBRX); // Pins (tx, rx) for PC serial channel |
asobhy | 0:a355e511bc5d | 7 | |
asobhy | 0:a355e511bc5d | 8 | Mutex setpoint_mutex; |
asobhy | 0:a355e511bc5d | 9 | |
asobhy | 0:a355e511bc5d | 10 | // speed |
asobhy | 0:a355e511bc5d | 11 | int setpoint; |
asobhy | 0:a355e511bc5d | 12 | |
asobhy | 0:a355e511bc5d | 13 | // variable to store character recieved from terminal |
asobhy | 0:a355e511bc5d | 14 | char x; |
asobhy | 0:a355e511bc5d | 15 | |
asobhy | 0:a355e511bc5d | 16 | extern uint16_t dPosition, dTime; |
asobhy | 0:a355e511bc5d | 17 | |
asobhy | 0:a355e511bc5d | 18 | uint16_t position; |
asobhy | 0:a355e511bc5d | 19 | |
asobhy | 0:a355e511bc5d | 20 | /****************************************************************************** |
asobhy | 0:a355e511bc5d | 21 | A function to test blutooth communication |
asobhy | 0:a355e511bc5d | 22 | ******************************************************************************/ |
asobhy | 0:a355e511bc5d | 23 | void twoTerminalsTest() |
asobhy | 0:a355e511bc5d | 24 | { |
asobhy | 0:a355e511bc5d | 25 | if (pc.readable()) { // If a key is pressed on the pc channel |
asobhy | 0:a355e511bc5d | 26 | x=pc.getc(); // read the character and send it to both the |
asobhy | 0:a355e511bc5d | 27 | bluetooth.putc(x); // bluetooth channel and the pc channel for |
asobhy | 0:a355e511bc5d | 28 | pc.putc(x); // display. |
asobhy | 0:a355e511bc5d | 29 | } |
asobhy | 0:a355e511bc5d | 30 | if (bluetooth.readable()) { |
asobhy | 0:a355e511bc5d | 31 | x=bluetooth.getc(); // If there’s a keypress on the bluetooth |
asobhy | 0:a355e511bc5d | 32 | pc.putc(x); // channel, read the character and send it to |
asobhy | 0:a355e511bc5d | 33 | bluetooth.putc(x); // both the pc channel and the bluetooth |
asobhy | 0:a355e511bc5d | 34 | } // channel for display |
asobhy | 0:a355e511bc5d | 35 | } |
asobhy | 0:a355e511bc5d | 36 | |
asobhy | 0:a355e511bc5d | 37 | |
asobhy | 0:a355e511bc5d | 38 | /****************************************************************************** |
asobhy | 0:a355e511bc5d | 39 | A function to Display startup Messsage |
asobhy | 0:a355e511bc5d | 40 | ******************************************************************************/ |
asobhy | 0:a355e511bc5d | 41 | void displayStartupMsg() |
asobhy | 0:a355e511bc5d | 42 | { |
asobhy | 0:a355e511bc5d | 43 | pc.printf("\r\n************************************"); |
asobhy | 0:a355e511bc5d | 44 | pc.printf("\r\n**** DC Motor Control using PWM ****"); |
asobhy | 0:a355e511bc5d | 45 | pc.printf("\r\n************************************"); |
asobhy | 0:a355e511bc5d | 46 | pc.printf("\r\n-Enter r to reset the watchdog timer"); |
asobhy | 0:a355e511bc5d | 47 | pc.printf("\r\n-press w to increase motor speed"); |
asobhy | 0:a355e511bc5d | 48 | pc.printf("\r\n-press s to decrease motor speed"); |
asobhy | 0:a355e511bc5d | 49 | } |
asobhy | 0:a355e511bc5d | 50 | |
asobhy | 0:a355e511bc5d | 51 | |
asobhy | 0:a355e511bc5d | 52 | /****************************************************************************** |
asobhy | 0:a355e511bc5d | 53 | Console interface |
asobhy | 0:a355e511bc5d | 54 | ******************************************************************************/ |
asobhy | 0:a355e511bc5d | 55 | void consoleUI(void) |
asobhy | 0:a355e511bc5d | 56 | { |
asobhy | 0:a355e511bc5d | 57 | if (pc.readable()) { |
asobhy | 0:a355e511bc5d | 58 | x = pc.getc(); |
asobhy | 0:a355e511bc5d | 59 | |
asobhy | 0:a355e511bc5d | 60 | // if input from console is the letter 'r' |
asobhy | 0:a355e511bc5d | 61 | if(x == 'r') { |
asobhy | 0:a355e511bc5d | 62 | // reset watchdog timer |
asobhy | 0:a355e511bc5d | 63 | WatchdogReset(); |
asobhy | 0:a355e511bc5d | 64 | pc.printf("\r\nWatchdog has been reset"); |
asobhy | 0:a355e511bc5d | 65 | } |
asobhy | 0:a355e511bc5d | 66 | |
asobhy | 0:a355e511bc5d | 67 | // if w is pressed increase the speed |
asobhy | 0:a355e511bc5d | 68 | // by incrementing u |
asobhy | 0:a355e511bc5d | 69 | else if(x == 'w') { |
asobhy | 0:a355e511bc5d | 70 | // convert to integer |
asobhy | 0:a355e511bc5d | 71 | if(setpoint<=10000) { |
asobhy | 0:a355e511bc5d | 72 | setpoint_mutex.lock(); |
asobhy | 0:a355e511bc5d | 73 | setpoint = setpoint + SPEED_STEP; |
asobhy | 0:a355e511bc5d | 74 | setpoint_mutex.unlock(); |
asobhy | 0:a355e511bc5d | 75 | } |
asobhy | 0:a355e511bc5d | 76 | // display speed |
asobhy | 0:a355e511bc5d | 77 | pc.printf("\r\n %5d", setpoint); |
asobhy | 0:a355e511bc5d | 78 | } |
asobhy | 0:a355e511bc5d | 79 | |
asobhy | 0:a355e511bc5d | 80 | // if s is pressed decrease the speed |
asobhy | 0:a355e511bc5d | 81 | // by decrementing u |
asobhy | 0:a355e511bc5d | 82 | else if(x == 's') { |
asobhy | 0:a355e511bc5d | 83 | // convert to integer |
asobhy | 0:a355e511bc5d | 84 | if(setpoint>-10000) { |
asobhy | 0:a355e511bc5d | 85 | setpoint_mutex.lock(); |
asobhy | 0:a355e511bc5d | 86 | setpoint = setpoint - SPEED_STEP; |
asobhy | 0:a355e511bc5d | 87 | setpoint_mutex.unlock(); |
asobhy | 0:a355e511bc5d | 88 | } |
asobhy | 0:a355e511bc5d | 89 | // display speed |
asobhy | 0:a355e511bc5d | 90 | pc.printf("\r\n %5d", setpoint); |
asobhy | 0:a355e511bc5d | 91 | } |
asobhy | 0:a355e511bc5d | 92 | |
asobhy | 0:a355e511bc5d | 93 | // error wrong input |
asobhy | 0:a355e511bc5d | 94 | else { |
asobhy | 0:a355e511bc5d | 95 | pc.printf("\r\nwrong input please enter \'w\' to increase the speed, \'s\' to reduce it or move in the opposite direction and \'r\' to reset the watchdog"); |
asobhy | 0:a355e511bc5d | 96 | } |
asobhy | 0:a355e511bc5d | 97 | } |
asobhy | 0:a355e511bc5d | 98 | position += dPosition; |
asobhy | 0:a355e511bc5d | 99 | pc.printf("\r\nposition: %d, dPosition: %d, dTime: %d", position, dPosition, dTime); |
asobhy | 0:a355e511bc5d | 100 | |
asobhy | 0:a355e511bc5d | 101 | } |
asobhy | 0:a355e511bc5d | 102 |