Arthur Semjonov / Mbed 2 deprecated Serial_Communication_Slave

Slave serial com

Dependencies:   mbed

Fork of Serial_Communication_Slave by Arthur Semjonov

main.cpp@1:a1067f80d074, 2014-02-18 (annotated)

Committer:
ArthurSemjonov
Date:
Tue Feb 18 16:38:12 2014 +0000
Revision:
1:a1067f80d074
Parent:
0:3457fac208b7 
Changed the TARDIS archive

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ArthurSemjonov 0:3457fac208b7 1 #include "mbed.h"
ArthurSemjonov 0:3457fac208b7 2 #include "TARDIS_ARCHIVE.h"
ArthurSemjonov 0:3457fac208b7 3 DigitalOut l(LED1), l2(LED2), l3(LED3), l4(LED4);
ArthurSemjonov 0:3457fac208b7 4 /********************************************************/
ArthurSemjonov 0:3457fac208b7 5 AnalogIn pitch(p19); //Potentiometer sets up the pitch of the song
ArthurSemjonov 0:3457fac208b7 6 AnalogIn tempo(p20); //Potentiometer to set tempo of the song
ArthurSemjonov 0:3457fac208b7 7 DigitalIn joyUP(p15); //Play song of the Doctor (Master)
ArthurSemjonov 0:3457fac208b7 8 DigitalIn joyDOWN(p12); //Play song of the Companion (Slave)
ArthurSemjonov 0:3457fac208b7 9 DigitalIn joyMID(p14); //Stop playing either master or Slave song.
ArthurSemjonov 0:3457fac208b7 10 PwmOut speaker(p26); //Speaker on the mbed
ArthurSemjonov 0:3457fac208b7 11
ArthurSemjonov 0:3457fac208b7 12 /*============SERIAL COMMUNICATION==============*/
ArthurSemjonov 0:3457fac208b7 13 I2CSlave companion(p9, p10); //mosi/miso/sck of the Slave
ArthurSemjonov 0:3457fac208b7 14 /********************************************************/
ArthurSemjonov 0:3457fac208b7 15 Serial pc(USBTX, USBRX);
ArthurSemjonov 0:3457fac208b7 16 int send_note; //word we will send
ArthurSemjonov 0:3457fac208b7 17 int rec_note; //value received from master
ArthurSemjonov 0:3457fac208b7 18 const int addr = 0x52;
ArthurSemjonov 0:3457fac208b7 19
ArthurSemjonov 0:3457fac208b7 20 /************************************|I Am the Doctor|**********************************/
ArthurSemjonov 0:3457fac208b7 21 float frequency[]= {//JJ song
ArthurSemjonov 0:3457fac208b7 22 };
ArthurSemjonov 0:3457fac208b7 23 float beat[]= {//JJ beat
ArthurSemjonov 0:3457fac208b7 24 };
ArthurSemjonov 0:3457fac208b7 25 /***************************************************************************************/
ArthurSemjonov 0:3457fac208b7 26
ArthurSemjonov 0:3457fac208b7 27 /*companion.write(switch_word); //load up word to send
ArthurSemjonov 0:3457fac208b7 28 //test for I2C, and act accordingly
ArthurSemjonov 0:3457fac208b7 29 int i = companion.receive();
ArthurSemjonov 0:3457fac208b7 30 if (i == 3)
ArthurSemjonov 0:3457fac208b7 31 {
ArthurSemjonov 0:3457fac208b7 32 //companion is addressed, Master will write
ArthurSemjonov 0:3457fac208b7 33 recd_val= companion.read();*/
ArthurSemjonov 0:3457fac208b7 34
ArthurSemjonov 0:3457fac208b7 35
ArthurSemjonov 0:3457fac208b7 36 int main()
ArthurSemjonov 0:3457fac208b7 37 {
ArthurSemjonov 0:3457fac208b7 38 companion.address(addr);
ArthurSemjonov 0:3457fac208b7 39 while(1) {
ArthurSemjonov 0:3457fac208b7 40
ArthurSemjonov 0:3457fac208b7 41 if (joyUP) {
ArthurSemjonov 0:3457fac208b7 42 playTheDoctor();
ArthurSemjonov 0:3457fac208b7 43 wait(0.01);
ArthurSemjonov 0:3457fac208b7 44 } else if (joyDOWN) {
ArthurSemjonov 1:a1067f80d074 45 playTheNote();
ArthurSemjonov 0:3457fac208b7 46 wait(0.01);
ArthurSemjonov 0:3457fac208b7 47 } else if (joyMID) {
ArthurSemjonov 0:3457fac208b7 48 songOfMyPeople(frequency, beat);
ArthurSemjonov 0:3457fac208b7 49 wait(0.01);
ArthurSemjonov 0:3457fac208b7 50 }
ArthurSemjonov 0:3457fac208b7 51 wait (0.01);
ArthurSemjonov 0:3457fac208b7 52 }
ArthurSemjonov 0:3457fac208b7 53 }
ArthurSemjonov 0:3457fac208b7 54 //========================================================================================================================================
ArthurSemjonov 0:3457fac208b7 55 //========================================================================================================================================
ArthurSemjonov 0:3457fac208b7 56 //========================================================================================================================================
ArthurSemjonov 0:3457fac208b7 57
ArthurSemjonov 0:3457fac208b7 58 /*********************************************************************
ArthurSemjonov 0:3457fac208b7 59 ******************************THE COMPANION***************************
ArthurSemjonov 0:3457fac208b7 60 ********************************aka slave*****************************
ArthurSemjonov 0:3457fac208b7 61 **********************************************************************/
ArthurSemjonov 0:3457fac208b7 62 /*TODO: 1) Figure out what stop() returns, if any
ArthurSemjonov 0:3457fac208b7 63 2) Add print statements to see what is getting sent/received
ArthurSemjonov 0:3457fac208b7 64 Bonus) Implement potentiameters for tempo and pitch */
ArthurSemjonov 1:a1067f80d074 65 void playTheNote()
ArthurSemjonov 0:3457fac208b7 66 {
ArthurSemjonov 0:3457fac208b7 67 for (int i=0; i<=8; i++) {
ArthurSemjonov 0:3457fac208b7 68 send_note = frequency[i];
ArthurSemjonov 0:3457fac208b7 69 companion.write(send_note);
ArthurSemjonov 0:3457fac208b7 70
ArthurSemjonov 0:3457fac208b7 71 float value = lookupNoteFrq(frequency, i);
ArthurSemjonov 0:3457fac208b7 72 speaker.period(1/(2*value)); // set PWM period
ArthurSemjonov 0:3457fac208b7 73 speaker=0.5;
ArthurSemjonov 0:3457fac208b7 74 wait(0.4*beat[i]);
ArthurSemjonov 0:3457fac208b7 75
ArthurSemjonov 0:3457fac208b7 76 if (joyMID) {
ArthurSemjonov 0:3457fac208b7 77 speaker = 0; //reset speaker duty cycle
ArthurSemjonov 0:3457fac208b7 78 companion.write(-1);
ArthurSemjonov 0:3457fac208b7 79 wait(2); //delay for inferior humans
ArthurSemjonov 0:3457fac208b7 80 return;
ArthurSemjonov 0:3457fac208b7 81 } else if(joyDOWN) {
ArthurSemjonov 0:3457fac208b7 82 speaker = 0;
ArthurSemjonov 0:3457fac208b7 83 companion.stop();
ArthurSemjonov 0:3457fac208b7 84 return;
ArthurSemjonov 0:3457fac208b7 85 }
ArthurSemjonov 0:3457fac208b7 86 }
ArthurSemjonov 0:3457fac208b7 87 speaker = 0;
ArthurSemjonov 0:3457fac208b7 88 companion.stop();
ArthurSemjonov 0:3457fac208b7 89
ArthurSemjonov 0:3457fac208b7 90
ArthurSemjonov 0:3457fac208b7 91
ArthurSemjonov 0:3457fac208b7 92
ArthurSemjonov 0:3457fac208b7 93
ArthurSemjonov 0:3457fac208b7 94 }
ArthurSemjonov 0:3457fac208b7 95
ArthurSemjonov 0:3457fac208b7 96 /*********************************************************************
ArthurSemjonov 0:3457fac208b7 97 ******************************THE DOCTOR******************************
ArthurSemjonov 0:3457fac208b7 98 ********************************aka master****************************
ArthurSemjonov 0:3457fac208b7 99 **********************************************************************/
ArthurSemjonov 0:3457fac208b7 100 /*TODO: 1) Make sure while loop condition is doing what it suppose to
ArthurSemjonov 0:3457fac208b7 101 2) Initialize receive note, and play it
ArthurSemjonov 0:3457fac208b7 102 3) Implement interrupts
ArthurSemjonov 0:3457fac208b7 103 4) Stopping conditions
ArthurSemjonov 0:3457fac208b7 104 Bonus) Potentiometers for pitch and tempo
ArthurSemjonov 0:3457fac208b7 105 */
ArthurSemjonov 0:3457fac208b7 106 void playTheDoctor()
ArthurSemjonov 0:3457fac208b7 107 {
ArthurSemjonov 0:3457fac208b7 108
ArthurSemjonov 0:3457fac208b7 109 while(companion.receive()!=0) {
ArthurSemjonov 1:a1067f80d074 110 send_note = companion.receive();
ArthurSemjonov 1:a1067f80d074 111 playTheNote(rec_note);
ArthurSemjonov 0:3457fac208b7 112 if (joyMID) {
ArthurSemjonov 0:3457fac208b7 113 speaker = 0; //reset speaker duty cycle
ArthurSemjonov 0:3457fac208b7 114 companion.stop(); //force end condition for both master and companion
ArthurSemjonov 0:3457fac208b7 115 wait(2); //delay for inferior humans
ArthurSemjonov 0:3457fac208b7 116 return;
ArthurSemjonov 0:3457fac208b7 117 } else if(joyUP) {
ArthurSemjonov 0:3457fac208b7 118 speaker = 0; //read joyUp value.
ArthurSemjonov 0:3457fac208b7 119 companion.stop(); //force end condition due to interuppt
ArthurSemjonov 0:3457fac208b7 120 return;
ArthurSemjonov 0:3457fac208b7 121 }
ArthurSemjonov 0:3457fac208b7 122 }
ArthurSemjonov 0:3457fac208b7 123 speaker = 0;
ArthurSemjonov 0:3457fac208b7 124 companion.stop();//force end condition
ArthurSemjonov 0:3457fac208b7 125 return;
ArthurSemjonov 0:3457fac208b7 126
ArthurSemjonov 0:3457fac208b7 127
ArthurSemjonov 0:3457fac208b7 128 }
ArthurSemjonov 0:3457fac208b7 129 /*===================================================================*/
ArthurSemjonov 0:3457fac208b7 130 //===================Goon Squad of helper functions==================//
ArthurSemjonov 1:a1067f80d074 131 void playTheNote(int k)
ArthurSemjonov 0:3457fac208b7 132 {
ArthurSemjonov 0:3457fac208b7 133 float frqNote = notes[k];
ArthurSemjonov 0:3457fac208b7 134 pc.printf("\n\rFrq of the companion note = '%f", k,
ArthurSemjonov 0:3457fac208b7 135 "\n\rFrq of the companion note = '%f'", frqNote);
ArthurSemjonov 0:3457fac208b7 136 speaker.period(1/(2*frqNote)); // set PWM period
ArthurSemjonov 0:3457fac208b7 137 speaker=0.5;
ArthurSemjonov 0:3457fac208b7 138 return;
ArthurSemjonov 0:3457fac208b7 139 }
ArthurSemjonov 0:3457fac208b7 140
ArthurSemjonov 0:3457fac208b7 141 /*====================Original Demo====================================*/
ArthurSemjonov 0:3457fac208b7 142 void songOfMyPeople(float frequency[], float beat[])
ArthurSemjonov 0:3457fac208b7 143 {
ArthurSemjonov 0:3457fac208b7 144 while(1) { //run infinetly unless interupted
ArthurSemjonov 0:3457fac208b7 145 for (int i=0; i<=8; i++) {
ArthurSemjonov 0:3457fac208b7 146 float value = lookupNoteFrq(frequency, i);
ArthurSemjonov 0:3457fac208b7 147 speaker.period(1/(2*value)); // set PWM period
ArthurSemjonov 0:3457fac208b7 148 speaker=0.5; // set duty cycle
ArthurSemjonov 0:3457fac208b7 149 wait(0.4*beat[i]);
ArthurSemjonov 0:3457fac208b7 150 if (joyMID) {
ArthurSemjonov 0:3457fac208b7 151 speaker = 0; //reset speaker duty cycle
ArthurSemjonov 0:3457fac208b7 152 wait(2); //delay for inferior humans
ArthurSemjonov 0:3457fac208b7 153 return;
ArthurSemjonov 0:3457fac208b7 154 }
ArthurSemjonov 0:3457fac208b7 155 }
ArthurSemjonov 0:3457fac208b7 156 speaker = 0;
ArthurSemjonov 0:3457fac208b7 157 wait(0.25);
ArthurSemjonov 0:3457fac208b7 158 }
ArthurSemjonov 0:3457fac208b7 159 }
ArthurSemjonov 0:3457fac208b7 160
ArthurSemjonov 0:3457fac208b7 161 /*===================================================================*/
ArthurSemjonov 0:3457fac208b7 162 float lookupNoteFrq(float frq[], int k)
ArthurSemjonov 0:3457fac208b7 163 {
ArthurSemjonov 0:3457fac208b7 164 int location_of_note = frequency[k];
ArthurSemjonov 0:3457fac208b7 165 pc.printf("\n\rLocation of the note = '%d'", location_of_note);
ArthurSemjonov 0:3457fac208b7 166
ArthurSemjonov 0:3457fac208b7 167 float vNote = notes[location_of_note];
ArthurSemjonov 0:3457fac208b7 168 pc.printf("\n\rFrq of the note = '%f'", vNote);
ArthurSemjonov 0:3457fac208b7 169 return vNote;
ArthurSemjonov 0:3457fac208b7 170 }