Michael Limbird / Mbed 2 deprecated VideoOutput

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Dependencies:   mbed

main.cpp@14:762baad15486, 2015-01-11 (annotated)

Committer:
mlimbird
Date:
Sun Jan 11 04:34:14 2015 +0000
Revision:
14:762baad15486
Parent:
13:83bea035c658
Child:
16:1121b66ef27b
Accelerometer correctly works with I2C. Changed the address - now there is a read and write.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mlimbird 0:80725699690f 1 #include "mbed.h"
mlimbird 0:80725699690f 2
mlimbird 8:c64f76d4deff 3 //Accelerometer
mlimbird 14:762baad15486 4 #define ADXL345_ADDRESS_W (0xA6)
mlimbird 14:762baad15486 5 #define ADXL345_ADDRESS_R (0xA7)
mlimbird 8:c64f76d4deff 6 #define ADXL345_REGISTER_XLSB (0x32)
mlimbird 8:c64f76d4deff 7 #define ADXL_REGISTER_PWRCTL (0x2D)
mlimbird 11:65ae1cf6f7d9 8 #define ADXL_PWRCTL_MEASURE (0x01 << 3)
mlimbird 8:c64f76d4deff 9
mlimbird 8:c64f76d4deff 10 //Gyroscope
mlimbird 8:c64f76d4deff 11 #define ITG3200_ADDRESS (0xD0 >> 1)
mlimbird 8:c64f76d4deff 12 #define ITG3200_REGISTER_XMSB (0x1D)
mlimbird 8:c64f76d4deff 13 #define ITG3200_REGISTER_DLPF_FS (0x16)
mlimbird 8:c64f76d4deff 14 #define ITG3200_FULLSCALE (0x03 << 3)
mlimbird 8:c64f76d4deff 15 #define ITG3200_42HZ (0x03)
mlimbird 8:c64f76d4deff 16
mlimbird 8:c64f76d4deff 17 //3-Axis Digital Compass IC
mlimbird 8:c64f76d4deff 18 #define HMC5843_ADDRESS (0x3C >> 1)
mlimbird 8:c64f76d4deff 19 #define HMC5843_REGISTER_XMSB (0x03)
mlimbird 8:c64f76d4deff 20 #define HMC5843_REGISTER_MEASMODE (0x02)
mlimbird 8:c64f76d4deff 21 #define HMC5843_MEASMODE_CONT (0x00)
mlimbird 8:c64f76d4deff 22
mlimbird 11:65ae1cf6f7d9 23 I2C i2c( p9, p10 ); // sda, scl
mlimbird 8:c64f76d4deff 24
mlimbird 11:65ae1cf6f7d9 25 void init_adxl345();
mlimbird 13:83bea035c658 26 void read_adxl345();
mlimbird 8:c64f76d4deff 27 //void init_itg3200();
mlimbird 8:c64f76d4deff 28 //void init_hmc5843();
mlimbird 8:c64f76d4deff 29
mlimbird 8:c64f76d4deff 30 Serial pc(USBTX, USBRX); //tx, rx
mlimbird 8:c64f76d4deff 31
mlimbird 12:509ed716bd58 32 int accelerometer_data[3];
mlimbird 12:509ed716bd58 33 //int gyro_data[3];
mlimbird 12:509ed716bd58 34 //int magnetometer_data[3];
mlimbird 8:c64f76d4deff 35
mlimbird 9:331dbf3b341d 36 PwmOut led(LED1);
mlimbird 9:331dbf3b341d 37
mlimbird 9:331dbf3b341d 38 float brightness = 0.0;
mlimbird 0:80725699690f 39
mlimbird 0:80725699690f 40 int main() {
mlimbird 8:c64f76d4deff 41
mlimbird 11:65ae1cf6f7d9 42 init_adxl345();
mlimbird 8:c64f76d4deff 43 //init_hmc5843();
mlimbird 8:c64f76d4deff 44 //init_itg3200();
mlimbird 7:4377556c2d5b 45
mlimbird 12:509ed716bd58 46 //pc.printf("Press 'u' to turn LED1 brightness up, 'd' to turn it down.\n");
mlimbird 9:331dbf3b341d 47
mlimbird 12:509ed716bd58 48 while(1) {
mlimbird 12:509ed716bd58 49 /*
mlimbird 9:331dbf3b341d 50 char c = pc.getc();
mlimbird 9:331dbf3b341d 51 if((c == 'u') && (brightness < 0.5)) {
mlimbird 9:331dbf3b341d 52 brightness += 0.01;
mlimbird 9:331dbf3b341d 53 led = brightness;
mlimbird 9:331dbf3b341d 54 }
mlimbird 9:331dbf3b341d 55 if((c == 'd') && (brightness > 0.0)) {
mlimbird 9:331dbf3b341d 56 brightness -= 0.01;
mlimbird 9:331dbf3b341d 57 led = brightness;
mlimbird 9:331dbf3b341d 58 }
mlimbird 12:509ed716bd58 59 */
mlimbird 13:83bea035c658 60 read_adxl345();
mlimbird 7:4377556c2d5b 61
mlimbird 0:80725699690f 62 }
mlimbird 0:80725699690f 63 }
mlimbird 8:c64f76d4deff 64
mlimbird 8:c64f76d4deff 65 void init_adxl345() {
mlimbird 11:65ae1cf6f7d9 66 char data[2];
mlimbird 11:65ae1cf6f7d9 67 data[0] = ADXL_REGISTER_PWRCTL;
mlimbird 11:65ae1cf6f7d9 68 data[1] = ADXL_PWRCTL_MEASURE;
mlimbird 8:c64f76d4deff 69
mlimbird 14:762baad15486 70 i2c.write(ADXL345_ADDRESS_W, data, 2); // first part of data is the register
mlimbird 11:65ae1cf6f7d9 71
mlimbird 11:65ae1cf6f7d9 72 wait(0.5);
mlimbird 8:c64f76d4deff 73
mlimbird 14:762baad15486 74 i2c.write(ADXL345_ADDRESS_W, data, 1);
mlimbird 14:762baad15486 75 i2c.read(ADXL345_ADDRESS_R, data, 2);
mlimbird 12:509ed716bd58 76 pc.printf("%i\n",(unsigned int)data);
mlimbird 8:c64f76d4deff 77 }
mlimbird 8:c64f76d4deff 78
mlimbird 8:c64f76d4deff 79 void read_adxl345() {
mlimbird 12:509ed716bd58 80 char bytes[6];
mlimbird 8:c64f76d4deff 81 memset(bytes,0,6);
mlimbird 12:509ed716bd58 82 bytes[0] = ADXL345_REGISTER_XLSB;
mlimbird 12:509ed716bd58 83
mlimbird 14:762baad15486 84 i2c.write(ADXL345_ADDRESS_W, bytes, 1);
mlimbird 14:762baad15486 85 i2c.read(ADXL345_ADDRESS_R, bytes, 6);
mlimbird 8:c64f76d4deff 86
mlimbird 8:c64f76d4deff 87 for (int i=0;i<3;++i) {
mlimbird 8:c64f76d4deff 88 accelerometer_data[i] = (int)bytes[2*i] + (((int)bytes[2*i + 1]) << 8);
mlimbird 8:c64f76d4deff 89 }
mlimbird 13:83bea035c658 90
mlimbird 13:83bea035c658 91 pc.printf("ACCEL: %i\t%i\t%i", accelerometer_data[0], accelerometer_data[1], accelerometer_data[2]);
mlimbird 8:c64f76d4deff 92 }
mlimbird 8:c64f76d4deff 93
mlimbird 12:509ed716bd58 94 /*
mlimbird 8:c64f76d4deff 95 void init_itg3200() {
mlimbird 8:c64f76d4deff 96 byte data = 0;
mlimbird 8:c64f76d4deff 97
mlimbird 8:c64f76d4deff 98 i2c_write(ITG3200_ADDRESS, ITG3200_REGISTER_DLPF_FS, ITG3200_FULLSCALE | ITG3200_42HZ);
mlimbird 8:c64f76d4deff 99
mlimbird 8:c64f76d4deff 100 i2c_read(ITG3200_ADDRESS, ITG3200_REGISTER_DLPF_FS, 1, &data);
mlimbird 8:c64f76d4deff 101
mlimbird 8:c64f76d4deff 102 Serial.println((unsigned int)data);
mlimbird 8:c64f76d4deff 103 }
mlimbird 8:c64f76d4deff 104
mlimbird 8:c64f76d4deff 105 void read_itg3200() {
mlimbird 8:c64f76d4deff 106 bytes bytes[6];
mlimbird 8:c64f76d4deff 107 memset(bytes,0,6);
mlimbird 8:c64f76d4deff 108
mlimbird 8:c64f76d4deff 109 i2c_read(ITG3200_ADDRESS, ITG3200_REGISTER_XMSB, 6, bytes);
mlimbird 8:c64f76d4deff 110 for (int i=0;i<3;++i) {
mlimbird 8:c64f76d4deff 111 gyro_data[i] = (int)bytes[2*i + 1] + (((int)bytes[2*i]) << 8);
mlimbird 8:c64f76d4deff 112 }
mlimbird 8:c64f76d4deff 113 }
mlimbird 8:c64f76d4deff 114
mlimbird 8:c64f76d4deff 115 void init_hmc5843() {
mlimbird 8:c64f76d4deff 116 bytes data = 0;
mlimbird 8:c64f76d4deff 117
mlimbird 8:c64f76d4deff 118 i2c_write(HMC5843_ADDRESS, HMC5843_REGISTER_MEASMODE, HMC5843_MEASMODE_CONT);
mlimbird 8:c64f76d4deff 119
mlimbird 8:c64f76d4deff 120 i2c_read(HMC5843_ADDRESS, HMC5843_REGISTER_MEASMODE, 1, &data);
mlimbird 8:c64f76d4deff 121 Serial.println((unsigned int)data);
mlimbird 8:c64f76d4deff 122 }
mlimbird 8:c64f76d4deff 123
mlimbird 8:c64f76d4deff 124 void read_hmc5843() {
mlimbird 8:c64f76d4deff 125 bytes bytes[6];
mlimbird 8:c64f76d4deff 126 memset(bytes,0,6);
mlimbird 8:c64f76d4deff 127
mlimbird 8:c64f76d4deff 128 i2c_read(HMC5843_ADDRESS, HMC5843_REGISTER_XMSB, 6, bytes);
mlimbird 8:c64f76d4deff 129
mlimbird 8:c64f76d4deff 130 for (int i=0;i<3;++i) {
mlimbird 8:c64f76d4deff 131 magnetometer_data[i] = (int)bytes[2*i + 1] + (((int)bytes[2*i]) << 8);
mlimbird 8:c64f76d4deff 132 }
mlimbird 8:c64f76d4deff 133 }
mlimbird 8:c64f76d4deff 134 */