Thiago . / Mbed 2 deprecated 1

Apenas UM acelerômetro em I2C, UM sensor de fluxo. Utiliza a biblioteca serial para enviar para o computador.

Dependencies:   mbed

main.cpp@0:aa70f7963d9f, 2015-07-13 (annotated)

Committer:
Jamess
Date:
Mon Jul 13 17:40:42 2015 +0000
Revision:
0:aa70f7963d9f
Leitura do sensor de fluxo analogico e dos aceler?metros utilizando I2C

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jamess 0:aa70f7963d9f 1 // Juntando a programação do sensor de fluxo com o acelerômetro
Jamess 0:aa70f7963d9f 2 // por Thiago
Jamess 0:aa70f7963d9f 3
Jamess 0:aa70f7963d9f 4 // Criado dia 02/03/2015
Jamess 0:aa70f7963d9f 5 //
Jamess 0:aa70f7963d9f 6
Jamess 0:aa70f7963d9f 7 #include "mbed.h"
Jamess 0:aa70f7963d9f 8
Jamess 0:aa70f7963d9f 9 /*-------ADXL345-------*/
Jamess 0:aa70f7963d9f 10
Jamess 0:aa70f7963d9f 11 // When SDO grounded
Jamess 0:aa70f7963d9f 12 #define ADXL1_ADDR_WRITE 0xA6
Jamess 0:aa70f7963d9f 13 #define ADXL1_ADDR_READ 0xA7
Jamess 0:aa70f7963d9f 14 #define ADXL1_ADDR 0X53
Jamess 0:aa70f7963d9f 15
Jamess 0:aa70f7963d9f 16 //When SDO high
Jamess 0:aa70f7963d9f 17 #define ADXL2_ADDR_WRITE 0x3A
Jamess 0:aa70f7963d9f 18 #define ADXL2_ADDR_READ 0x3B
Jamess 0:aa70f7963d9f 19 #define ADXL2_ADDR 0x53
Jamess 0:aa70f7963d9f 20
Jamess 0:aa70f7963d9f 21 //Registers
Jamess 0:aa70f7963d9f 22
Jamess 0:aa70f7963d9f 23 #define POWER_CTL 0x2D
Jamess 0:aa70f7963d9f 24 #define DATA_FORMAT 0x31
Jamess 0:aa70f7963d9f 25 #define DATAX0 0x32
Jamess 0:aa70f7963d9f 26 #define DATAX1 0x33
Jamess 0:aa70f7963d9f 27 #define DATAY0 0x34
Jamess 0:aa70f7963d9f 28 #define DATAY1 0x35
Jamess 0:aa70f7963d9f 29 #define DATAZ0 0x36
Jamess 0:aa70f7963d9f 30 #define DATAZ1 0x37
Jamess 0:aa70f7963d9f 31 #define OFSX 0x1D
Jamess 0:aa70f7963d9f 32 #define OFSY 0x1F
Jamess 0:aa70f7963d9f 33 #define OFSZ 0x20
Jamess 0:aa70f7963d9f 34 #define BW_RATE 0x2C
Jamess 0:aa70f7963d9f 35
Jamess 0:aa70f7963d9f 36 /*----Transmicao----*/
Jamess 0:aa70f7963d9f 37
Jamess 0:aa70f7963d9f 38 I2C i2c(PTC2,PTC1);
Jamess 0:aa70f7963d9f 39 Serial pc(USBTX,USBRX);
Jamess 0:aa70f7963d9f 40
Jamess 0:aa70f7963d9f 41 /*-----Funcoes------*/
Jamess 0:aa70f7963d9f 42
Jamess 0:aa70f7963d9f 43 // Acelerômetro:
Jamess 0:aa70f7963d9f 44 int RegisterWrite(char,char,char);
Jamess 0:aa70f7963d9f 45 int RegisterRead(char,char);
Jamess 0:aa70f7963d9f 46 inline void MultByteRead(char,char,char*,int);
Jamess 0:aa70f7963d9f 47 void GetOutput(char,int*);
Jamess 0:aa70f7963d9f 48
Jamess 0:aa70f7963d9f 49 // Sensor de Fluxo:
Jamess 0:aa70f7963d9f 50 AnalogIn ain(PTB3);
Jamess 0:aa70f7963d9f 51 DigitalOut led2(LED2); // Led red
Jamess 0:aa70f7963d9f 52 void HandlerT1(void);
Jamess 0:aa70f7963d9f 53 void rx_Handler(void);
Jamess 0:aa70f7963d9f 54
Jamess 0:aa70f7963d9f 55 Ticker t1; // Timer to send data
Jamess 0:aa70f7963d9f 56
Jamess 0:aa70f7963d9f 57 volatile bool STATUS = true;
Jamess 0:aa70f7963d9f 58 char test = 0;
Jamess 0:aa70f7963d9f 59
Jamess 0:aa70f7963d9f 60 int main()
Jamess 0:aa70f7963d9f 61 {
Jamess 0:aa70f7963d9f 62
Jamess 0:aa70f7963d9f 63 /*-----------------INICIALIZA SENSOR DE FLUXO-----------*/
Jamess 0:aa70f7963d9f 64 pc.baud(9600);
Jamess 0:aa70f7963d9f 65 pc.attach(&rx_Handler, pc.RxIrq);
Jamess 0:aa70f7963d9f 66 led2=0;
Jamess 0:aa70f7963d9f 67
Jamess 0:aa70f7963d9f 68
Jamess 0:aa70f7963d9f 69 /*------------------INICIALIZA ACELEROMETRO-------------*/
Jamess 0:aa70f7963d9f 70 int readings[3] = {0,0,0};
Jamess 0:aa70f7963d9f 71 printf("Entrou no main"); //Debug.
Jamess 0:aa70f7963d9f 72
Jamess 0:aa70f7963d9f 73 i2c.frequency(100000); //100kHz
Jamess 0:aa70f7963d9f 74
Jamess 0:aa70f7963d9f 75 // Testa Envio:
Jamess 0:aa70f7963d9f 76 pc.printf("Sending POWER CONTROL\t");
Jamess 0:aa70f7963d9f 77 STATUS = RegisterWrite(ADXL1_ADDR,POWER_CTL,0x00);
Jamess 0:aa70f7963d9f 78
Jamess 0:aa70f7963d9f 79 if (STATUS != 0){
Jamess 0:aa70f7963d9f 80 pc.printf("WRITE NO SUCCESS\t");
Jamess 0:aa70f7963d9f 81 }
Jamess 0:aa70f7963d9f 82 else{
Jamess 0:aa70f7963d9f 83 pc.printf("ACKNOLEDGE RECEIVED");
Jamess 0:aa70f7963d9f 84 }
Jamess 0:aa70f7963d9f 85
Jamess 0:aa70f7963d9f 86 wait(0.1);
Jamess 0:aa70f7963d9f 87 pc.printf("Sending Data Format\t");
Jamess 0:aa70f7963d9f 88
Jamess 0:aa70f7963d9f 89 RegisterWrite(ADXL1_ADDR,DATA_FORMAT,0x09); //
Jamess 0:aa70f7963d9f 90
Jamess 0:aa70f7963d9f 91 RegisterWrite(ADXL1_ADDR,BW_RATE,0x0A); // Default Value... 100kHZ
Jamess 0:aa70f7963d9f 92
Jamess 0:aa70f7963d9f 93 RegisterWrite(ADXL1_ADDR,POWER_CTL,0x08); // MeasurementMode
Jamess 0:aa70f7963d9f 94
Jamess 0:aa70f7963d9f 95
Jamess 0:aa70f7963d9f 96 /*-------------Setting the Offset Value---------------*/
Jamess 0:aa70f7963d9f 97
Jamess 0:aa70f7963d9f 98 RegisterWrite(ADXL1_ADDR,OFSX,0xFD);
Jamess 0:aa70f7963d9f 99 RegisterWrite(ADXL1_ADDR,OFSY,0x03);
Jamess 0:aa70f7963d9f 100 RegisterWrite(ADXL1_ADDR,OFSZ,0xFE);
Jamess 0:aa70f7963d9f 101
Jamess 0:aa70f7963d9f 102 /*----------------------------------------------------*/
Jamess 0:aa70f7963d9f 103
Jamess 0:aa70f7963d9f 104 wait(0.1);
Jamess 0:aa70f7963d9f 105 printf("Now, trying to read data\t");
Jamess 0:aa70f7963d9f 106 printf("%i", RegisterRead(ADXL1_ADDR,0x00));
Jamess 0:aa70f7963d9f 107
Jamess 0:aa70f7963d9f 108 if (STATUS == 0){
Jamess 0:aa70f7963d9f 109 printf("READ SUCCESSFULL\t");
Jamess 0:aa70f7963d9f 110 }
Jamess 0:aa70f7963d9f 111 else {
Jamess 0:aa70f7963d9f 112 printf("READ NOT SUCCESSFUL\n");
Jamess 0:aa70f7963d9f 113 }
Jamess 0:aa70f7963d9f 114
Jamess 0:aa70f7963d9f 115 pc.printf("Press 2 to Start");
Jamess 0:aa70f7963d9f 116
Jamess 0:aa70f7963d9f 117 while(1) {
Jamess 0:aa70f7963d9f 118
Jamess 0:aa70f7963d9f 119 wait(0.5); // Debug
Jamess 0:aa70f7963d9f 120 led2 = 0;
Jamess 0:aa70f7963d9f 121 pc.putc(test); // Debug
Jamess 0:aa70f7963d9f 122
Jamess 0:aa70f7963d9f 123 if (test == '2') {
Jamess 0:aa70f7963d9f 124 t1.attach(&HandlerT1, 0.01);
Jamess 0:aa70f7963d9f 125 }
Jamess 0:aa70f7963d9f 126
Jamess 0:aa70f7963d9f 127 while(test == '2') {
Jamess 0:aa70f7963d9f 128
Jamess 0:aa70f7963d9f 129 if (STATUS == true) {
Jamess 0:aa70f7963d9f 130
Jamess 0:aa70f7963d9f 131 STATUS = false;
Jamess 0:aa70f7963d9f 132 led2 = 1;
Jamess 0:aa70f7963d9f 133 pc.printf("0x%04X",ain.read_u16());
Jamess 0:aa70f7963d9f 134 GetOutput(ADXL1_ADDR,readings);
Jamess 0:aa70f7963d9f 135 pc.printf("%i,%i,%i\n",(int16_t)readings[0],(int16_t)readings[1],(int16_t)readings[2]);
Jamess 0:aa70f7963d9f 136 }
Jamess 0:aa70f7963d9f 137
Jamess 0:aa70f7963d9f 138
Jamess 0:aa70f7963d9f 139 } //end of while(test=='2'){}
Jamess 0:aa70f7963d9f 140
Jamess 0:aa70f7963d9f 141 t1.detach(); // Detaches timer interruption when not needed
Jamess 0:aa70f7963d9f 142 }//end of while(1)
Jamess 0:aa70f7963d9f 143 }//end of main
Jamess 0:aa70f7963d9f 144
Jamess 0:aa70f7963d9f 145 void HandlerT1(void)
Jamess 0:aa70f7963d9f 146 {
Jamess 0:aa70f7963d9f 147 STATUS = true;
Jamess 0:aa70f7963d9f 148 }
Jamess 0:aa70f7963d9f 149
Jamess 0:aa70f7963d9f 150 void rx_Handler(void)
Jamess 0:aa70f7963d9f 151 {
Jamess 0:aa70f7963d9f 152 test = pc.getc();
Jamess 0:aa70f7963d9f 153 pc.putc(test);
Jamess 0:aa70f7963d9f 154 }
Jamess 0:aa70f7963d9f 155
Jamess 0:aa70f7963d9f 156 int RegisterWrite(char SLAVE, char RegAddress, char Data){
Jamess 0:aa70f7963d9f 157 char cmd[2];
Jamess 0:aa70f7963d9f 158 cmd[0]= RegAddress;
Jamess 0:aa70f7963d9f 159 cmd[1]= Data;
Jamess 0:aa70f7963d9f 160 int ack = i2c.write((SLAVE<<1),cmd,2);
Jamess 0:aa70f7963d9f 161 return ack;
Jamess 0:aa70f7963d9f 162 }
Jamess 0:aa70f7963d9f 163
Jamess 0:aa70f7963d9f 164 int RegisterRead(char SLAVE, char address){
Jamess 0:aa70f7963d9f 165 char output;
Jamess 0:aa70f7963d9f 166 char tx = address;
Jamess 0:aa70f7963d9f 167 i2c.write((SLAVE<<1),&tx,1);
Jamess 0:aa70f7963d9f 168 STATUS = i2c.read((SLAVE<<1), &output,1);
Jamess 0:aa70f7963d9f 169 return output;
Jamess 0:aa70f7963d9f 170 }
Jamess 0:aa70f7963d9f 171
Jamess 0:aa70f7963d9f 172 inline void MultRegisterRead(char SLAVE, char address,char*output,int size){
Jamess 0:aa70f7963d9f 173 i2c.write((SLAVE<<1),&address,1);
Jamess 0:aa70f7963d9f 174 i2c.read((SLAVE<<1),output,size);
Jamess 0:aa70f7963d9f 175 return;
Jamess 0:aa70f7963d9f 176 }
Jamess 0:aa70f7963d9f 177
Jamess 0:aa70f7963d9f 178 void GetOutput(char SLAVE, int* readings){
Jamess 0:aa70f7963d9f 179 char buffer[6];
Jamess 0:aa70f7963d9f 180 MultRegisterRead(SLAVE,DATAX0,buffer, 6);
Jamess 0:aa70f7963d9f 181 readings[0] = (int)buffer[1] << 8 | (int)buffer[0];
Jamess 0:aa70f7963d9f 182 readings[1] = (int)buffer[3] << 8 | (int)buffer[2];
Jamess 0:aa70f7963d9f 183 readings[2] = (int)buffer[5] << 8 | (int)buffer[4];
Jamess 0:aa70f7963d9f 184 }