niklas ekstrand / Mbed 2 deprecated co657_ass5_aggregation_and_visualisation

iotass5

Dependencies:   C12832 mbed

main.cpp@0:0f5f8d4652d3, 2016-01-21 (annotated)

Committer:
co657_ne75
Date:
Thu Jan 21 23:25:46 2016 +0000
Revision:
0:0f5f8d4652d3
Child:
1:469f8bbbd5f0
Done, i think.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
co657_ne75 0:0f5f8d4652d3 1 #include "mbed.h"
co657_ne75 0:0f5f8d4652d3 2 #include "C12832.h"
co657_ne75 0:0f5f8d4652d3 3 #include <string>
co657_ne75 0:0f5f8d4652d3 4
co657_ne75 0:0f5f8d4652d3 5 using namespace std;
co657_ne75 0:0f5f8d4652d3 6
co657_ne75 0:0f5f8d4652d3 7 /*
co657_ne75 0:0f5f8d4652d3 8 * Outputs
co657_ne75 0:0f5f8d4652d3 9 */
co657_ne75 0:0f5f8d4652d3 10 C12832 lcd(D11, D13, D12, D7, D10);
co657_ne75 0:0f5f8d4652d3 11 Serial host (USBTX, USBRX);
co657_ne75 0:0f5f8d4652d3 12 PwmOut speaker(D6);
co657_ne75 0:0f5f8d4652d3 13
co657_ne75 0:0f5f8d4652d3 14 InterruptIn sw3(PTA4);
co657_ne75 0:0f5f8d4652d3 15
co657_ne75 0:0f5f8d4652d3 16 volatile int bufferInsert = 0;
co657_ne75 0:0f5f8d4652d3 17 volatile int currentBufferSize = 0;
co657_ne75 0:0f5f8d4652d3 18 const int bufferSize = 512;
co657_ne75 0:0f5f8d4652d3 19 char rxBuffer[bufferSize];
co657_ne75 0:0f5f8d4652d3 20 //Ascii code for "-", it is used to end messages
co657_ne75 0:0f5f8d4652d3 21 const char dash = 45;
co657_ne75 0:0f5f8d4652d3 22
co657_ne75 0:0f5f8d4652d3 23 void rxInterrupt(void){
co657_ne75 0:0f5f8d4652d3 24 //Reads all available data from the serial into the buffer as long as the buffer is not full
co657_ne75 0:0f5f8d4652d3 25 while ((host.readable()) && (currentBufferSize != bufferSize)){
co657_ne75 0:0f5f8d4652d3 26 rxBuffer[bufferInsert] = host.getc();
co657_ne75 0:0f5f8d4652d3 27 bufferInsert = (bufferInsert + 1) % bufferSize;
co657_ne75 0:0f5f8d4652d3 28 currentBufferSize++;
co657_ne75 0:0f5f8d4652d3 29 }
co657_ne75 0:0f5f8d4652d3 30 int index = (bufferInsert - currentBufferSize) % bufferSize;
co657_ne75 0:0f5f8d4652d3 31 string message = "";
co657_ne75 0:0f5f8d4652d3 32 //Looks for a message in buffer
co657_ne75 0:0f5f8d4652d3 33 while (index != bufferInsert){
co657_ne75 0:0f5f8d4652d3 34 if(rxBuffer[index] == dash){
co657_ne75 0:0f5f8d4652d3 35 //everything between (bufferInsert - currentBufferSize) and index is the message
co657_ne75 0:0f5f8d4652d3 36 //Removes the message from the buffer
co657_ne75 0:0f5f8d4652d3 37 while(((bufferInsert - currentBufferSize) % bufferSize) != index){
co657_ne75 0:0f5f8d4652d3 38 message.append(string(1, rxBuffer[((bufferInsert - currentBufferSize) % bufferSize)]));
co657_ne75 0:0f5f8d4652d3 39 currentBufferSize--;
co657_ne75 0:0f5f8d4652d3 40 }
co657_ne75 0:0f5f8d4652d3 41 //The last character will be "-", so it removes it from the buffer
co657_ne75 0:0f5f8d4652d3 42 currentBufferSize--;
co657_ne75 0:0f5f8d4652d3 43 break;
co657_ne75 0:0f5f8d4652d3 44 }
co657_ne75 0:0f5f8d4652d3 45 index = (index + 1) % bufferSize;
co657_ne75 0:0f5f8d4652d3 46 }
co657_ne75 0:0f5f8d4652d3 47 if(message == "jordan ping" || message == "arez ping" || message == "niklas ping"){
co657_ne75 0:0f5f8d4652d3 48 lcd.cls();
co657_ne75 0:0f5f8d4652d3 49 lcd.locate(0,10);
co657_ne75 0:0f5f8d4652d3 50 lcd.printf("%sed you", message.c_str());
co657_ne75 0:0f5f8d4652d3 51 for (float i=2000.0f; i<10000.0f; i+=100) {
co657_ne75 0:0f5f8d4652d3 52 speaker.period(1.0f/i);
co657_ne75 0:0f5f8d4652d3 53 speaker=0.5;
co657_ne75 0:0f5f8d4652d3 54 wait(0.02);
co657_ne75 0:0f5f8d4652d3 55 }
co657_ne75 0:0f5f8d4652d3 56 speaker=0.0;
co657_ne75 0:0f5f8d4652d3 57 }
co657_ne75 0:0f5f8d4652d3 58 }
co657_ne75 0:0f5f8d4652d3 59
co657_ne75 0:0f5f8d4652d3 60 void sw3interrupt(void){
co657_ne75 0:0f5f8d4652d3 61 host.printf("niklas ping-");
co657_ne75 0:0f5f8d4652d3 62 }
co657_ne75 0:0f5f8d4652d3 63
co657_ne75 0:0f5f8d4652d3 64 int main(void){
co657_ne75 0:0f5f8d4652d3 65 host.baud(38400);
co657_ne75 0:0f5f8d4652d3 66
co657_ne75 0:0f5f8d4652d3 67 sw3.mode(PullUp);
co657_ne75 0:0f5f8d4652d3 68 sw3.fall(&sw3interrupt);
co657_ne75 0:0f5f8d4652d3 69
co657_ne75 0:0f5f8d4652d3 70 host.attach(&rxInterrupt, Serial::RxIrq);
co657_ne75 0:0f5f8d4652d3 71
co657_ne75 0:0f5f8d4652d3 72 for(;;){
co657_ne75 0:0f5f8d4652d3 73 wait(0.1);
co657_ne75 0:0f5f8d4652d3 74 }
co657_ne75 0:0f5f8d4652d3 75 }