Vincent Belanger / Mbed 2 deprecated APP4

APP 4

Dependencies:   mbed CRC16 mbed-rtos

APP.cpp@14:9505b98c6623, 2016-02-22 (annotated)

Committer:
vinbel93
Date:
Mon Feb 22 18:06:59 2016 +0000
Revision:
14:9505b98c6623
Parent:
13:195826b8c61b
Parent:
12:715af3660c73
Child:
15:ed9511c3aac6
fixed laurent's incompetence

Who changed what in which revision?

UserRevisionLine numberNew contents of line
manl2003 2:1250280a511b 1 #include "APP.h"
vinbel93 3:3ffa14e75b8a 2 #include "Manchester.h"
vinbel93 9:b937f9c6d682 3 #include "Frame.h"
vinbel93 14:9505b98c6623 4 #include "MEF.h"
vinbel93 0:ac5e42371639 5
vinbel93 0:ac5e42371639 6 Serial pc(USBTX, USBRX);
vinbel93 13:195826b8c61b 7 DigitalOut out(p8);
vinbel93 13:195826b8c61b 8 DigitalIn in(p30);
vinbel93 0:ac5e42371639 9
vinbel93 6:3181f546e812 10 bool clockTick = false;
vinbel93 13:195826b8c61b 11 bitset<FRAMESIZE> message (string("1010101010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"));
manl2003 12:715af3660c73 12 bitset<MAX_DATA> decodedMessage;
manl2003 12:715af3660c73 13 bool dataReady;
manl2003 12:715af3660c73 14 bool frameDropped;
vinbel93 3:3ffa14e75b8a 15 int counter = 0;
vinbel93 13:195826b8c61b 16 unsigned int period = 0;
vinbel93 13:195826b8c61b 17 bool readBuffer[2] = {false, false};
vinbel93 13:195826b8c61b 18 bool readBufferReady = false;
vinbel93 14:9505b98c6623 19 MEF mef;
vinbel93 0:ac5e42371639 20
vinbel93 1:f212b6676849 21 int benchmark(void (*function) (void))
vinbel93 0:ac5e42371639 22 {
vinbel93 3:3ffa14e75b8a 23 int count = LPC_TIM2->TC;
vinbel93 0:ac5e42371639 24 function();
vinbel93 3:3ffa14e75b8a 25 return LPC_TIM2->TC - count;
vinbel93 0:ac5e42371639 26 }
vinbel93 0:ac5e42371639 27
vinbel93 13:195826b8c61b 28 extern "C" void TIMER1_IRQHandler()
vinbel93 0:ac5e42371639 29 {
vinbel93 13:195826b8c61b 30 if ((LPC_TIM1->IR & 0x01) == 0x01) // if MR0 interrupt, proceed
vinbel93 0:ac5e42371639 31 {
vinbel93 13:195826b8c61b 32 LPC_TIM1->IR |= 1 << 0; // Clear MR0 interrupt flag
vinbel93 6:3181f546e812 33 clockTick = !clockTick;
vinbel93 13:195826b8c61b 34 out = encode(message[counter] & 0x1, clockTick);
vinbel93 6:3181f546e812 35
vinbel93 6:3181f546e812 36 if (clockTick)
vinbel93 0:ac5e42371639 37 {
vinbel93 6:3181f546e812 38 counter++;
vinbel93 0:ac5e42371639 39 }
vinbel93 6:3181f546e812 40
vinbel93 6:3181f546e812 41 if (counter >= FRAMESIZE)
vinbel93 0:ac5e42371639 42 {
vinbel93 6:3181f546e812 43 counter = 0;
vinbel93 0:ac5e42371639 44 }
vinbel93 0:ac5e42371639 45 }
vinbel93 0:ac5e42371639 46 }
vinbel93 13:195826b8c61b 47
vinbel93 13:195826b8c61b 48 extern "C" void TIMER2_IRQHandler()
manl2003 10:51ee22e230c7 49 {
vinbel93 13:195826b8c61b 50 unsigned int clocks = LPC_TIM2->CR0;
vinbel93 13:195826b8c61b 51 period = clocks; // preambule 01010101
manl2003 10:51ee22e230c7 52
vinbel93 13:195826b8c61b 53 if (!readBufferReady)
vinbel93 13:195826b8c61b 54 {
vinbel93 13:195826b8c61b 55 readBuffer[0] = in.read();
vinbel93 13:195826b8c61b 56 }
vinbel93 13:195826b8c61b 57 else
vinbel93 13:195826b8c61b 58 {
vinbel93 13:195826b8c61b 59 readBuffer[1] = in.read();
vinbel93 13:195826b8c61b 60 // Appel MEF
vinbel93 13:195826b8c61b 61 bool value = decode(readBuffer[0], readBuffer[1]);
vinbel93 14:9505b98c6623 62 mef.ReceiveBit(value);
vinbel93 13:195826b8c61b 63 }
manl2003 10:51ee22e230c7 64
vinbel93 13:195826b8c61b 65 LPC_TIM2->TC = 0;
manl2003 10:51ee22e230c7 66
vinbel93 13:195826b8c61b 67 LPC_TIM2->IR |= 0xFFFFFFFF; // clear Timer interrupt register
vinbel93 13:195826b8c61b 68 }
vinbel93 13:195826b8c61b 69
manl2003 7:733d500dbe5c 70 void initTimers()
vinbel93 0:ac5e42371639 71 {
vinbel93 13:195826b8c61b 72 //Timer 1 (match)
vinbel93 13:195826b8c61b 73 LPC_SC->PCLKSEL0 |= (1 << 4); // pclk = cclk timer1
manl2003 10:51ee22e230c7 74 LPC_SC->PCONP |= (1 << 2); // timer1 power on
manl2003 10:51ee22e230c7 75 LPC_TIM1->MR0 = CLOCKS_TO_SECOND / 10; // 100 ms
manl2003 10:51ee22e230c7 76 LPC_TIM1->MCR = 3; // interrupt and reset control
vinbel93 13:195826b8c61b 77 // Interrupt & reset timer on match
vinbel93 13:195826b8c61b 78 LPC_TIM1->EMR = (3 << 4);
vinbel93 13:195826b8c61b 79 NVIC_EnableIRQ(TIMER1_IRQn); // enable timer interrupt
vinbel93 13:195826b8c61b 80 LPC_TIM1->TCR = 1; // enable Timer
vinbel93 13:195826b8c61b 81
vinbel93 13:195826b8c61b 82 //Timer 2 (cap)
vinbel93 13:195826b8c61b 83 LPC_SC->PCLKSEL1 |= (1 << 12); // pclk = cclk timer2
vinbel93 13:195826b8c61b 84 LPC_SC->PCONP |= (1 << 22); // timer2 power on
vinbel93 13:195826b8c61b 85 LPC_TIM2->TC = 0; // clear timer counter
vinbel93 13:195826b8c61b 86 LPC_TIM2->PC = 0; // clear prescale counter
vinbel93 13:195826b8c61b 87 LPC_TIM2->PR = 0; // clear prescale register
vinbel93 13:195826b8c61b 88 LPC_TIM2->TCR |= (1 << 1); // reset timer
vinbel93 13:195826b8c61b 89 LPC_TIM2->TCR &= ~(1 << 1); // release reset
vinbel93 13:195826b8c61b 90 LPC_TIM2->IR = 0xFFFFFFFF; // clear interrupt register
vinbel93 13:195826b8c61b 91 LPC_TIM2->CCR |= 0x0000007; // enable rising-edge and falling-edge capture on 2.0
vinbel93 13:195826b8c61b 92 NVIC_EnableIRQ(TIMER2_IRQn); // enable timer interrupt
vinbel93 13:195826b8c61b 93 LPC_TIM2->TCR = 1; // start Timer
vinbel93 0:ac5e42371639 94 }
vinbel93 0:ac5e42371639 95
vinbel93 1:f212b6676849 96 int main()
vinbel93 0:ac5e42371639 97 {
vinbel93 13:195826b8c61b 98 //message = buildFrame(convertToBits("ASDF", 4, &pc), 4, &pc);
vinbel93 9:b937f9c6d682 99
vinbel93 13:195826b8c61b 100 LPC_PINCON->PINSEL0 |= (3 << 8); // P0.4 = CAP2.0
manl2003 8:60499583959f 101 initTimers();
vinbel93 3:3ffa14e75b8a 102
vinbel93 3:3ffa14e75b8a 103 while (true)
vinbel93 0:ac5e42371639 104 {
vinbel93 13:195826b8c61b 105 pc.printf("%i ", period);
vinbel93 13:195826b8c61b 106 pc.printf("%i \r\n", in.read());
vinbel93 13:195826b8c61b 107 //pc.printf("%i ", decode(in.read(), clockTick));
vinbel93 13:195826b8c61b 108 wait(0.1);
vinbel93 0:ac5e42371639 109 }
vinbel93 0:ac5e42371639 110 }
manl2003 12:715af3660c73 111
vinbel93 14:9505b98c6623 112 void _decodeCallback(bitset<FRAMESIZE> decMessage)
manl2003 12:715af3660c73 113 {
vinbel93 14:9505b98c6623 114 //decodedMessage = decMessage;
manl2003 12:715af3660c73 115 dataReady = true;
manl2003 12:715af3660c73 116 }
manl2003 12:715af3660c73 117
vinbel93 14:9505b98c6623 118 void _decodeError()
manl2003 12:715af3660c73 119 {
manl2003 12:715af3660c73 120 frameDropped = true;
manl2003 12:715af3660c73 121 }